---
title: [live] working on Stripe Samples open source for Stripe Connect
slug: live-working-on-stripe-samples-open-source-for-stripe-connect
published_at: 2022-03-31 02:44:26 +0000
updated_at: 2026-03-04 20:13:35 +0000
summary: 
description: This episode is a live stream where we're working on some Stripe Samples for Stripe Connect, a product for building marketplaces and platforms.  Code for this episode: https://github.com/stripe-samples/connect-direct-charge-checkout/pull/11
tags: [livestream, payments, stripe connect, stripe checkout, ruby, sinatra]
views: 395
author: CJ Avilla
url: https://www.cjav.dev/videos/live-working-on-stripe-samples-open-source-for-stripe-connect
youtube_url: https://www.youtube.com/watch?v=7gcxUFQppXk
youtube_id: 7gcxUFQppXk
embed_url: https://www.youtube.com/embed/7gcxUFQppXk
thumbnail_url: https://i.ytimg.com/vi/7gcxUFQppXk/hqdefault.jpg
type: video
---

# [live] working on Stripe Samples open source for Stripe Connect

*Published: March 31, 2022*
*Views: 395*

## Watch

[Watch on YouTube](https://www.youtube.com/watch?v=7gcxUFQppXk)

[![[live] working on Stripe Samples open source for Stripe Connect](https://i.ytimg.com/vi/7gcxUFQppXk/hqdefault.jpg)](https://www.youtube.com/watch?v=7gcxUFQppXk)

## Description

This episode is a live stream where we're working on some Stripe Samples for Stripe Connect, a product for building marketplaces and platforms.

Code for this episode: https://github.com/stripe-samples/connect-direct-charge-checkout/pull/11

## Transcript

hey how's it going in this episode we're going to talk about just working on some striped samples um so last night this user s l whitman opened some issues on this stripe sample about connect with direct charges so stripe connect is uh this product that you can use for building platforms and marketplaces and stripe checkout is a stripe hosted page where you can redirect to check out and these stripe samples uh have let's see this one has an html client and then they also have several different servers this one just has one two three four five so we're missing go and net and so the goal for oh gosh you can't see that here you go uh so this was the issue that was opened um so sl whitman writes in and talks about a bug that happened on on the stripe sample so this stripe sample has a single html client that i hope you can see and it also has several different server implementations so it's got ruby python php node and java it is missing go and net there are some uh we're also like missing some tests we could probably write and a couple other things this i don't think this uh this sample has been touched very much for many many months so we're gonna kind of just do some cleanup and work on adding maybe depend a bot maybe a couple different other things um and then also just responding to this issue um as kind of yeah i thought it might be fun to just stream and talk about it because we don't really talk very much about stripe um connect very much and so let's jump into it okay so here i have i already pulled down the repo so i've got the repo here and in the root there is this dot end dot example and so um hey yasin how you doing where are you from uh what are you yeah like what do you uh what are you up to today um thanks for joining the scene is here they say like um okay so we've got uh yeah so in the in the dot m example before we didn't have the domain so i just added the domain um so that fixed one of the bugs um i think that might actually be the thing that fixes this one issue is just adding the domain to um to the uh dot n file um but i there's a bunch of other cleanup that we want to do so we'll just say like uh adds domain and variable and uh what else does this do i guess this fixes number 10. um so while we're working on this though i want to go through and update a few things so this is this is what the sample actually looks like i guess we'll jump into one of the servers here maybe ruby and say ruby server and fire this up and now when we go to a local host 4242 you can see the page here it says accept a payment with direct charges and then we can pick a teacher and this list of teachers i'm assuming is my accounts that are connected to my like with my secret key so we'll go take a look at how this select list is actually populated and then the idea is that you can sort of like say i want to buy five hours of guitar lessons and i'm going to complete my payment where i'm buying like these ten dollar an hour guitar lessons and we're redirected to stripe checkout where we can see like this this hosted page couple things that i'm noticing right off the bat this only has the card element so i'm guessing the stripe checkout session is sort of an older implementation that only has payment methods so we want to enable automatic payment methods so why don't we do that first let's just jump into the ruby server here and look at how the checkout session is configured so we have this sinatra post route so we're receiving post requests to slash create checkout session and this is going to just uh accept some application json we're going to read in the json body we're going to grab that base price out of the environment variables so like in our dot end here we have some base price and that is ten dollars so it's like in the lowest currency denomination or whatever um and then we're taking the quantity that was passed in from the front end and that base price and we're building line items these custom line items from scratch passing in an amount that's actually a little bit old um like or like legacy i would say and then we're passing in a quantity and then we actually do have like this nice image of a guitar and then we're coming back to success or cancel ah but here we have payment method types and so payment method types is old it is uh we like don't want to have um payment method types anymore because when we when we are explicitly passing in payment method types hey wilder what's up good morning uh yeah how's it going um i know it's it's a little bit early morning here but we're hanging out um so yeah payment method types lets you explicitly say i want to accept card i want to accept a u.s bank account like ach i want to accept klarna or you know bank contact or whatever different payment method types but there's this really cool new thing where you can define those directly in the stripe dashboard and so we actually don't need to specify payment method types anymore and like right off the bat this should get this should get better so like let's restart the server refresh the page and then if we come down here and say we want to check out now then we're redirected and ah we actually don't have more payment method types probably enabled for that specific um connected account i'm guessing so if we come into our uh connect platform um and come down here to um our connected accounts and we open this up and we take a look at this connected account settings i believe we should be able to manage the payment method types somewhere uh capabilities so we've got car payments and transfers this actually just moved so i'm not remembering where this goes how do we control the payment method types for a connected account perhaps it's in settings for connect ah here we go connect payment method types so your account and then the ones that are enabled for connected accounts so we'll edit the settings for connected accounts we're in test mode so we want to allow connected accounts to customize their own or do we want to just enable a bunch so i think what we want to do is um enable a couple so we've got apple pay oh these ones have action required um yeah we do want to enable link probably and then yeah so definitely um ach direct debit so this is uh brand new newly available on um checkout and payment element and payment link so that we definitely want to enable we can yeah enable uh canadian pre-authorized debit backs direct debit bex direct debit for folks in australia we can enable fpx for folks in malaysia et cetera et cetera i guess we also want to maybe enable beletto and oxo these are really fun voucher-based payment methods and then the ones that have action required that just means that the connected account has to like confirm that that's something that they want to turn on because they need to agree to certain terms so here's some that we want to turn on and just by applying that if we restart the demo and reopen this checkout session we should have some more payment method types here we do not why don't we i guess i guess wait hold on okay so we just enabled them for wait why didn't that oh maybe it takes a minute to update okay it says this takes this might take a few minutes all right well we'll come back we'll come back to that in a bit and while we're waiting for that what we can do is come over to our server and let's just clean up some of the code that's in server.rb so that it matches sort of what we were what we have in a lot of the other samples okay so we're loading the environment from dot end we're setting the api key one other thing that we've been doing recently um is accept a payment this is like the kind of like the canonical example right now is the accept a payment sample and if we look at the server for ruby for this sample you'll see that we're actually passing in some info some setup info we're also passing in an api version because we want to explicitly set the api version for the sample so that we're guaranteed to work with whatever version that we've set it at i've had a few instances in the past where folks go to try a sample and it doesn't work as expected because their api version their like default api version is set to something different and then the api behaves a little bit differently so this sample again is called connect direct charge with checkout so we're just going to add this in here to make sure that we can track like if we have any errors or whatever that are related to this okay what else do we have going on here we have a we've got like a get route i'm not actually sure what this does here so what is what is this doing so this is saying um go through each of the headers and uh i don't think we actually need this um for anything okay so compute the application fee amount so this is just a helper function that takes in some base price and some quantity and applies uh a 10 cut that the platform will receive when someone pays again we're pulling out the base price here what i think i want to do is actually say like end dot fetch and then we'll say base price otherwise we'll just default to 10 and what that will do is if yeah like if we have some ruby hash right let's say that our end is some ruby hash i guess we can't reuse that one and two is some ruby hash and if we say n2 dot fetch then we can pass in a key that we want to fetch or a default value that we should get if we do not have that key so if the key let's say is base price then if if base price is not a key that's in the hash already then we'll get back one two three four otherwise if we say like end to at you know like if we actually set it uh base price i don't know if i just broke everything by having a new line there but um if we say that is like i don't know 9000 and then we try to fetch it again we'll get back the the value that is actually at that key so that makes it a little bit more robust meaning that like we won't automatically fail if you don't have the base price set in your environment variables which is kind of handy so we can do something similar for the domain we'll just say like fetch the domain and if it's not there then we're going to give it localhost 4242 which is the default and this is also adding on our like success url what i want to do is actually just use string interpolation here i don't know like not a huge deal to change that but whatever what's cool about this success url so this is the url to which we are redirecting the customer after they successfully pay is we're embedding this checkout session id in the query string so that'll be in the url on the success page and what's nice about that is we can then use that checkout session id to like look up the checkout session and um display information about it on the page like you know what what you purchased and um uh yeah like what um what you purchased maybe if you had any coupons or discounts things like that okay so let's also do this end fetch default situation in the case of the cancel url and we need to make this a double quote i don't know if anyone has context about that like why do we need to use double quotes when we're doing string interpolation with ruby i don't know it's just like a just a pattern or something like i wish it worked with single quotes and double quotes like what like what's the limitation maybe someone knows that and can drop that down in the description below or maybe folks that are online right now have an idea of how that works okay so line items used to work like this you could just pass in a name and some images and a quantity and a currency right at the top level this is actually like a legacy way of defining line items and so what we want to do is instead we want to pass in some price data so check out the uh checkout session i use this tool called text expander which is pretty cool you can say like uh you can build these little um i don't know what they're called like uh snippets i guess where you type something out and then it like auto it auto completes it for you so here this is the new style of line item so if we look at the line items list here you'll see that by default we want to pass in either the id of an existing price or we want to pass in price data and so the way that this was implemented before is we were kind of taking in some quantity and then just some raw number for the price that we wanted to charge instead of maintaining like a price and product catalog inside of stripe we're just kind of defining these ad hoc and so the way that we can do this with the newer pattern is to find some price data and the price data is going to expect a currency and e and then either product or product data so in this case we can pass in the same currency and then we can pass in some product data and product data accepts the images and what else is product data taken that also takes the name and description etc etc so we'll pass in the name into product data here and i think oh right and then the price data also is expecting the unit amount so it's no longer called amount it's called unit amount and it lives inside of price data and we'll just call that unit amount and that is going to be our base price and then uh outside of the price data so this is our price data hash here we want to pass in the quantity now what's cool is i think probably since this was implemented like or since the sample was first defined we have added adjustable quantity so what we can do here is we can actually pass in we can enable adjustable quantity if we want i think that kind of like goes a little bit outside the bounds of the the demo so maybe we'll just keep it as is um and then we are passing a payment intent data that has the application fee amount that we're calculating based on the base price and quantity again this is like a little helper function that's up above now in the case of connect we are making an api call here so this is going to um create a checkout session and we're actually passing this this create function two different arguments the first argument is this this hash of all the params that we're sending to the api and then the second argument here is some special headers and these headers are uh in this case we're passing along the stripe account so this is the connected account like this is the merchant so in this case what we're doing is we're saying which teacher do you want to buy guitar lessons from and then we're we're passing along the id of the teachers stripe account as part of creating the checkout sessions so that when they check out they're paying that specific teacher okay the other thing that's going on here in this in this route is we're rendering back to our client some json that has the id of the checkout session there's actually a newer a newer pattern here and so what i want to do is actually jump up into the client so we'll go back into the html here and take a look at what's happening with the html okay so we've got uh we've got this div that has like a bunch of stuff this is like our our form so we're picking the number of hours we're picking um from a drop down we're picking some um the teacher that we want to select and then we have this this submit button down below and then inside of script.js we have some javascript that allows us to control the number of items that a customer can purchase and this second thing here update quantity this is all about updating the quantity and then we are adding yeah we're adding click handlers for the um the increment button we're handling any errors from checkout we actually don't need to handle these anymore because we actually no longer need to create a checkout session with this ajax request so the way that this is currently set up is when you click that button on the on the client we're like grabbing the input for the quantity and we're grabbing the input for the account and we're passing those back to the server with javascript then we're waiting for some data to come back and then we're using that data in order to create a checkout session and that checkout session is then um that checkout session is then being used to call um redirect to checkout right here but there's a much better way to do this we actually like don't need to handle any of this stuff client-side anymore we can just send some data to the server and then redirect server-side directly to checkout and so what i think we want to do is actually just rip out all of this submit handler code and instead replace it with with a form on the client so we're going to rip out all this create checkout session code because we actually don't need that anymore and then we're going to we're gonna we're still gonna need this like set up accounts code because that's fetching all of the accounts um and we still have some express dashboard code that might be up here but for now let's go back to our html and instead let's make this this um this form like an actual form so if we come back to our demo we restart the demo and open this up what you'll see is that what we really need is we just need a form that has this input and this input and a button so the the input for the number the input for the select and the button that's really all we need so this section where we where we call section i actually want to make this i think um a form but let's let's just wrap the whole thing in a form for a second and see what happens here okay uh all right let's see how badly that breaks the css uh if if at all okay all right i think that still looks good and then what we want to do is we want to set the form action to be uh create checkout session and we're gonna send this back to the server as a post request and now what we need to do is like just make sure that our inputs have a name so this needs to have a name and that's going to be quantity and our select also needs a name and this is going to be uh name is going to be account all right so now when we refresh the page what i'm expecting is that on the server we're going to be receiving uh we're going to be receiving um like form encoded form encoded data uh it's like whatever www form and code form url and go to data uh and then we're gonna we don't actually need to parse i don't think we need to json parse that it should be available just in like params or something let's just p uh request.body um and then maybe like sinatra form encoded let's see how we do this with sinatra um yeah anybody anybody on no okay let's see uh rack.read holy moly okay so yeah it's just params okay yeah just params all right so great so we should be able to just change this to params quantity and i think we should be able to change this to um params account what is up aaron how's it going how is uh your new hometown so uh aaron from automate all the things in the house or in the apartment or in the what is it you're in a new condo how is uh yeah i guess your new city your new your new hometown your new home country you change countries yeah this is uh this is big big times for aaron um right so params we should be able to take in params and then like once we've created the checkout session that's going to have a url property that we can redirect to so i think in sinatra we can just say redirect aaron says it's cold and expensive yeah it's cold here too it's not as expensive here though it was cold enough this morning that i needed this this like super warm hat uh to take my kids and drop them off at the bus and i still haven't warmed back up from it and it's like uh 9 30. so uh yeah i'm sure it's cold all right so we're going to redirect to that url property that is on that session and i think this might i don't know let's let's just give it a whirl this might work maybe okay restart the server and uh well i'm just going to open up the i keep sort of keep the dev tools open all the time just to see what's flying by as we're making requests so we click on complete and you must provide mode when using prices okay cool this is great so what we have in our server here is because we're now passing price data we also need to pass a mode which was another thing that was introduced probably after the sample was originally written and so in this case the mode is going to be payment the mode could be one of setup payment or subscription setup is like you want to redirect someone to check out just to collect their details but you're not going to charge them anything right now like maybe you want to just add a card on file or you want to set up some payment details for later payment is you want to collect a one-time payment right now and subscription you can actually start recurring subscriptions and you can even pass in like a one-time price that is like a setup fee and then another price that is a recurring price um so for now we're just going to set uh pass mode and let's give this another shot here let's see oh actually gosh we got to restart the server you know what i'm going to do is add sinatra reloader and i think in order to do that we need to add sinatra contribute to our gem file so that we can we can actually use that um and that will make it so that we can just like or the server should automatically reload as we're making changes i hope we'll see okay complete payment of ten dollars and we're redirected to checkout whoa look at that now we have ach oh my gosh it's so yeah that was so quick and easy so to enable ach remember that we removed payment method types and we went into the stripe dashboard and enabled the payment methods for our connected accounts to include ach and a bunch of other payment methods only card and ach are showing right now because we are collecting a usd payment and so those are the only two payment methods that we have enabled in the dashboard for connected accounts that support that currency so if we just go through here in fact like yeah let's go through the process for ach it's really neat and you have instant verification now so you can just say like oh you know connect directly to whatever my bank account is and instead of having to like do a micro deposit thing you can just automatically just say like okay yes i want to make um an immediately verified bank account uh connection to stripe and then i'm going to pay for this 10 thing directly with ach so that's like i don't know very handy um and yeah uh so okay so that's we're making great progress here um and at this point what we have is we actually have a ruby server that instead of uh instead of rendering back that session id we are redirecting directly to checkout we've upgraded to use this new price data like you know pattern and um we're using a little bit better like idiomatic ruby i think and we have like a little bit more reliable fetching for our environment um and what else we've got going on here let's see i think i'm pretty happy with at least with this this post route here um i think what might make sense too is to maybe write a couple of just r-spec tests so that we can um confirm that this is doing what we expect potentially and then um we can write like we can run those tests against the other languages so that we can make changes to those other languages faster the other thing i'm noticing is that we are passing the currency here but then we're like just using usd so let's clean up config a little bit we actually don't need to pass a currency to the front end and we do want to pass our publishable key and our base price so for our base price again we're going to say in.fetch base price or 10 or something our publishable key we absolutely need to have that publishable key so that we'll keep there and this is where we're actually making an api call to fetch the list of accounts andrew what's up how's it going i i totally missed everyone at um sin city ruby i wish i was there uh so yeah i hope everyone had a blast but i'm i'm really trying to make it out to railsconf um andrew mason uh is one of the hosts of remote ruby it's an awesome podcast if you haven't checked it out go check out the remote ruby podcast also um ruby radar is like this amazing newsletter that comes out on a weekly basis with tons of great stuff supporting the community all like really amazing things um oh yeah hugs all right so what else do we have here we have so we've got this config route it's fetching the publishable key it's returning that to the client in fact based on the current integration we actually don't even need a publishable key but we'll leave that in there for now just in case there was any other like sort of future plans um next we have yeah well i cannot wait to see you all in portland either this is going to be a blast i think we're going to have fun i'm like a little bit nervous about the flights coming home there were only red eyes available uh but it should be fun so um all right so this get express dashboard link so this is again just like a simple sinatra route where we are um we're making an api call to strive to create this thing called a login link where you basically pass in the account id so in this case like we're building this app for guitar teachers to accept payments from their students and so in this case when we're when we're going to redirect someone to the express dashboard that would be like the guitar teacher is logged in they're authenticated and they want to go see their express dashboard where they can manage payments and such and so we need to take in the account id of the guitar teacher and then we're going to redirect them to to the express dashboard again this is like not super idiomatic ruby right like and in fact like we should just be able to say redirect to link.url uh here instead of rendering back the json so let's go try to figure out where that express dashboard link thing was used so we're going to say express dashboard link and look for that in here and it looks like it's not okay so on the client there is supposed to be some uh when no accounts are enabled this provides a way to log in as an express account to finish the onboarding process okay so yeah i guess like maybe we want to have some other like route here maybe we'll we'll call another route like um my or like account html or something and what we can do is just add like a very simple link on the page or like a form on the page that will redirect directly to the express dashboard for a given account so um yeah let's just like remove everything and we'll add like a little form here that says um we'll make the action go to like express dashboard and the method will be post and we'll make a just like a button that says like view my dashboard um view like my teacher dashboard i don't know sure now if we go directly to this route account.html or whatever okay we have this nice button when we click on view my dashboard we are going to make a post request to this express dashboard thing which is going to be some route here that's going to be like this um let's see express dashboard and it's going to be a post request we'll pull in params account i guess we need to yeah we need to like have another account drop down that shows the list of accounts and then we're going to create a login link actually hold on a sec yeah we actually can just we can just use this post express dashboard all right and then i don't know what okay whatever this is i don't know why there's parents around that maybe there's something fancy oh andrew you're working on some stripe stuff yeah let me know i like in dm i'm curious what you're working on if you have feedback or um yeah uh some strife some stripe stuff at podia sounds like it might be um super related to what we're working on here because this is connect and it's ruby and i don't know so um yeah stride connect uh okay so we're gonna create a login link and we're gonna redirect to the login link let's uh okay so we need to as part of that form that we just created on this accounts page we also need to pass in some account id so um recall that in this index thing we had a drop down list of accounts so somewhere here we have yeah we have like this little div and that was populated with um some javascript from the yeah that was populated with some javascript from this thing that says um actually like okay enabled accounts select is the id of the select box and so this is running okay so where do we call setup accounts um okay we're calling fetch config okay i guess i'm just gonna load script on the account page too which we are and let's just see if it loads count.html um super cool uh nice nice nice um so it should have loaded a list of accounts it did not uh why did it not let's see there's a lot of errors can't read property null of undefined while listening to something something so update window okay uh i guess update quantity how do we want to do this fetch the 10 most recent accounts yeah so the way that it was written it totally expected that this javascript was only going to be on one page so we're going to get a little we're going to get a little creative here in trying to figure out how to separate these out um okay so document dots okay so all of this stuff is like um uh initializing the quantity control so initialize quantity control is a some function that does all of this stuff and then update quantity array from listening to the click handler et cetera et cetera et cetera like all of this stuff is inside of some function that we're going to call initialize quantity control and what we want to do is on both pages we always want to fetch config and then if um okay it says if setup accounts is uh is not okay so um i'm wondering if we actually want to just say window.config there and then move update quantity or like initialize quantity into index.js and just like right after we load uh yeah right after you load script.js and do all the things we'll actually just um call like initialize quantity control and the reason why i want to do that is i want to separate out the initialization of the quantity control and like um setting up accounts because i want this setup accounts thing to work for both pages for both the index and the account page and then also this express dashboard thing is like i don't think this is shown anywhere disabled accounts form disabled accounts form oh it is okay it's just hidden all right so um maybe we should redirect to it if it's i uh okay i'm not sure what we want to do with that yet so hmm uh let's see set up accounts yeah like i almost wonder if we want to move this into another like initialize um yeah let's see how do we want to do that set up disabled accounts form this one we can just wrap in another like function that is only run when we are in need of this thing okay so then we can call that to setup disabled accounts form and now we should get okay script line seven what is this okay um is it not does it not know that the script is updated uh okay cool all right so now it's not being called right right wait what good okay so it's not being called but now this drop down is not working as expected because um oh right we don't want to call update quantity anymore um unless yeah okay or on that other page okay so then is this okay this is not cannot read properties null of reading classlist so when we're calling oh okay so we're missing some html from the spinner all right so we'll grab actually let's grab some of this styling too for the account page and we will drop that in there and it looks like we're wrapping with two divs okay much cleaner we've got a spinner oh and look at that now we've got accounts okay so now if i say wave at or wave plus two and click on plus yeah it's trying to bring us to this express dashboard thing which i'm now that i see how that other that other thing works i kind of want to like undo this part and then make this a get request so that over here in the script when we say express dashboard yeah so that's still going to be a get request and then on our account page we can make this just a get a get request which is the default so we can just do that and then we are going to continue passing our name do we want it to be name or name or like sorry account id number account id so it should actually be oh we're flying around we're flying around sorry for switching around too much um we should have account id here i'm also seeing that like the quality here is low connection is unstable can you all hear me i don't know uh let's see all right ask.com how fast are we going fast.com all right doesn't seem that bad okay so let's head back over here and then again we want our express dashboard to be um a get request cool all right thanks for confirming andrew um uh express dashboard link alright so this is going to be a get request all right so if we go to like slash account.html we load up our connected accounts now if we pick a specific teacher and click view my teacher dashboard we should be redirected nice okay super cool so this is going to be the express dashboard for the stripe the express stripe connect account so i was texted a little number here don't share this with anyone except all of the people on the live stream uh okay nice all right here we go so this is our this is our express dashboard where we can see different payments that we've received as a guitar teacher guitar hero super cool all right um all right so that's that's working what else do we have in the server here um we've got the web hook okay so we have our our web hook handler which is um handling a checkout session completed this event.type we can just use like the name the normal dot notation for ruby event.data.object um there's a couple of like edge cases in python but in ruby it's totally fine to just um use this and in fact this i think is actually the wrong this is the wrong thing this is like not the connected account id this is um it should be session oh wait no no that is right that is right okay so the checkout session is going to contain all the stuff about the purchase and then the event object at the very top level for a connected account event is where we find the account id so now we're saying like handle the checkout session now what's interesting is that since this was written we also started adding a couple other types of checkout session being completed and not all of them have a successful payment anymore so now what we need to do is like inside of the inside of the fulfillment for handling a checkout session we actually need to print out like the payment status so we'll say maybe we'll say like uh check out uh or like yeah paid status is um session dot oh gosh what is this uh all right so for the checkout session session object should now have a payment status property and that's going to be one of paid unpaid or no payment required um which is like the setup mode one but what's what's interesting is that again like since this sample was originally written we now have two different events we need to listen for one is checkout session completed but the other is checkout session dot payment like async payment something something oh gosh let's see um uh yeah there's like another type of event that's going to fire when a check-in with a checkout session succeeds asynchronously so this becomes important in the case where you're using a delayed notification payment method and so let's let's like talk about that for a second so like with cards in the us we're all used to cards right you can swipe your card and what's nice about cards is you like immediately can verify as like the person that's selling something that the money is there and you can yeah you can like have the money basically but in a delayed payment scenario where for instance if you're using a baleto or a voucher based payment system in latin america or oxo in mexico right like the way that that works is you actually print out like a voucher and you take it down to the corner store and when you print out the voucher your checkout session is completed but then when you go down to the store you take this like piece of paper down to the store and you scan the code or the barcode the qr code at the store and you pay cash that's what actually like ultimately confirms the payment is you paying cash at the store and so that happens like out of bounds some other time down the road maybe a day later two days later or whatever um and so similarly some bank transactions take a couple days to land and so when we're talking about async payment succeeded this is us listening for that future event where we know okay the payment is successful so if someone is paying for guitar lessons and they're using oxo then we want to make sure that we're handling the checkout session later down the road and we're also like you know fulfilling based on the status of that checkout session later again we can sort of like improve this a little bit in terms of our ruby stuff by using string interpolation here i don't know why that format looks weird oh it's because i okay it's like it looks like a comment it's not a comment okay so that should be handling the checkout section now how do we actually test the webhook handler well because we're talking about connect we need to set up a webhook handler that will forward events to our locally running server so i'm going to use the stripe cli so stripe listen forward to localhost 4242 webhook i think that is the endpoint right so this is going to be receiving post requests to slash webhook now you'll also notice that in our webhook handler we're expecting that the environment variables has a stripe webhook signing secret and this is like the thing that checks to verify that the post request came from stripe and only stripe and we're going to see that as soon as we run this this stripe cli command to start the listener but before we start the listener we don't want to just do forward two so forward two is for all of our account events that are happening on our own account but if we're talking about connect we also need to forward the connect account events and i feel like i actually don't remember right listen um dash dash help let's see uh we also want the connect events how do we get the connect events listen forward to um let's see stripe listen stripe listen forward to localhost 4242 web hook dash dash help give me the other one what is the connected account one oh here we go forward connect to it is dash c so um dash c and this is going to be the same like the same endpoint for both our um localhost 4242 web hook for both of our account our account endpoint our account events and our connected accounts events so we're going to use the same sort of route and the same web hook handler to handle both events but yeah so okay so you notice like this printed out a thing this is like our webhook signing secret every single webhook endpoint that you create with stripe is going to have its own unique webhook signing secret so if you make one in the dashboard it'll have a webhook signing secret and if you make one with the stripe cli right here that'll have a different webhook signing secret and each of those is so that you can go to the code for that specific endpoint and make sure that it is verifying those post requests came just like just from stripe so if we restart the server here and then go back through our um through our payment flow so let's just go to like localhost 4242 and um maybe this time we will buy i don't know like oh gosh oh okay this is fun so we we introduced a bug where like if you click on the plus button now it checks you out because um it thinks that we're submitting the form but we're totally not submitting the form all right so let's go let's go fix that uh all right so we want to jump over here and we want to go back to our index.html page and where we have our increment uh our increment button i'm actually just going to make these uh a's i don't know i think whatever we've got like some css that we can use and i think this might work let's see so can we increment no stop stop submitting okay we don't want it to submit we want this this button to be the only submit type submit okay so i feel like connor just recently posted uh um like a an entire blog post about handling different like multiple different buttons inside of a um inside of a form and i feel like we want this to have some sort of yeah like link in form is submitting oh gosh uh we don't want it to submit use it more okay um gosh who knows the answer who knows the answer it's not type submit it's the other type like input type not submit uh what is the yeah what gosh okay mozilla are you going to come to the rescue input types input type is uh submit and then how can we change it to not be submit type is it just type button or something input type button uh okay there are push buttons which can be programmed to control custom functionality can i put that on like a button on a button class type button okay so i think that might actually be the change that we want to make is um make this type button let's see type button what are you going to try to solve input type button hey giant gosling um what we're trying to solve right now is that our we have like a little bug in our application that is making it so that when we click on the increment button here it's actually submitting the form and we don't want to submit the form we want it to like increment also i see that we lost our like pay stuff down here so a lot of our javascript is like not happy anymore so okay so we have this initialized quality quantity control thing so we're gonna we're gonna have to do some like javascript debugging here okay here we go uh reading event listener of null oh you know what i think is happening maybe is we're running this javascript before like those elements are on the page ooh type range yeah i think we could use type range because we should be using um oh nice okay so that sort of fixed some of it yeah like we probably should have written this as a range input originally right like instead of having these different buttons but um someone yeah like when we when it was originally built we didn't uh we didn't use the range let's try that out though let's just see what it looks like so input type range and let's see [Music] oh what nice okay that's cool i think i do think we want this quantity thing though like we want the button right like increment decrement button and i think we're pretty close actually now like what is this config is not defined at some point when we're trying to use the config and that's because we're calling update quantity yeah that's because we're calling update quantity before the config exists so we actually sort of need to do these two things like after we fetch config uh so um yeah how do we wanna do this um so we set up the accounts and then we have window.config um we could get super hacky and just like okay yeah hold on a sec hold on a sec yeah let's make another function here called like fetch config and this will be an async function and we'll just put like all this stuff inside of it and we will return or return this thing and then what we will do is on our client here we'll say fetch config dot then then do all of this other stuff i think i don't know let's let's see if that works console no errors okay now we see our complete payment all right we're incrementing we're decrementing click on complete payment and all right that was ten dollars that was a little too easy uh not not easy like we didn't actually confirm that it's passing the right quantity and stuff so let's try forty dollars to wave two at c drive dev okay fantastic okay this is super cool all right so that's working as expected now we've got um we're able to like sort of uh check out there oh gosh okay sorry giant giant gosling i like left your message up on the screen the whole time uh okay so then yeah andrew was like oh should we use the type range i think that range thing that range slider is super cool um but we would probably need to listen i don't know like how do we listen for and then display like the number of hours with the range as it's as it's sliding i don't know um okay now what we want to do is keep working on this count.html thing like this seems like it's probably working maybe okay no we broke this too um oh because now it's like yeah now it's not actually fetching this oh nice okay so the range emits a change event when it's changed sweet so we could probably listen to like how many hours yeah like how many hours um did they pick on this on the range the slider um uh yeah that totally makes sense okay um and then i guess like over in our account form we still need to call like uh like fetch config and maybe i don't know oh i guess huh oh this is sorry you no longer defer you have to load before everyone else so that everything is happy and okay now this is sad because setup accounts doesn't have what is the wrapper the wrapper is enabled accounts section okay what is that enabled accounts section oh section to display okay so [Music] let's make that a little better because we don't need that enabled accounts section so i'll just say like if wrapper then we'll do all this stuff because we won't have the wrapper in some cases but we will in others and that should be just fine and it didn't work okay [Music] oh wait what oh we only use the wrapper down here okay so if wrapper changing this stuff too quickly i think maybe all right but that's that's that's working now all right fantastic we can view the teacher dashboard this is so cool um stripe express is super nice because you have this dashboard that you can go look at and you can see these payments that are coming in and yeah all right let's go write it in six other languages uh okay so now that we have sort of a working front end um let's go rewrite it in python so let's see um so like yeah updating ruby and the client i shouldn't have committed directly to master yeah let's get reset soft uh get reset head hat soft get check out make a new branch called like upgrading uh to new checkout or something uh same same message and then we will okay so for python uh so we're gonna cd into this server into python and we need to like create a virtual environment so we'll say python-m then then i think remind you to say python3 i can't remember what the m1s like where we what we get so we're going to source venge bin activate that's going to activate the virtual environment and then we want to install our dependencies so there's this requirements.txt thing at the root so we should be able to say pip install requirements.txt it'll install a bunch of dependencies and some of them are unhappy um okay so let's open up server.pi and see what we actually need um what is random used for app.secret key that's not uh okay i don't know what this i don't know what this is uh so i don't think we need random yeah string we don't need string os we need that for environment variables we need stripe for obvious reasons um url lib what are we using that for nothing okay so i'm gonna go back in here and just try to like delete um everything i don't know uh can i do that no we definitely need stripe um okay actually let's let's look at uh the requirements file for another working newer python implementation that has like fine stuff hey chris how's it going we're uh we're still hacking we're hanging out we've been here for like almost an hour um and you missed all the ruby stuff we are now we're now going to do python um so this is all the requirements that we should need um flask a dot n for loading environment variables and then stripe so i think yeah let's try installing dependencies like that so we'll come back over here pip install dash r requirements and okay so now um andrew and chris up in the comments or chatting okay so we'll grab dot in from the ruby server and we'll paste that into python and then um now we should be able to see like python server.pi and fire up our python server if our sinatra server was closed okay so um python serve it up high uh okay so that should have fired up a server and oh wow look at that okay so we can still increment and decrement but now our submission should no longer work because we changed our sort of contract with our client so because we updated the html to work with our new ruby backend now we have to go into our python backend and update to make all of the same changes um okay so we'll jump over to python and we'll open this thing up and we will look at our python code so we have a root route we have this compute application fee we have a route for receiving um receiving a post request to create checkout session remember that no we're no longer sending json with an ajax request from the client back to the server but instead what we're doing now is we are passing back just like form encoded json so i can't actually remember what flask form encoded brands like how do we get the yeah how do we get the body in flask it's probably just yeah okay request.form gives you a dict that seems like it should probably work as expected so we can just say like request.form and then access it so for now we'll just say that like uh params is actually yeah let's just pull it directly off of here so request dot form and we'll hope that this gives us the quantity and we can sort of confirm that in a couple different ways um and then what we did for ruby is we we switched from just pulling directly out of the end and we we made it a little bit more stable by saying like get me this environment variable and if it's not defined then give me a default using fetch i'm not sure if os.get and in python um has a way of specifying a default so let's see if that can just take a second argument oh yeah totally so then we'll just like say default is ten dollars or ten ten cents or one thousand cents or whatever the lowest currency is okay and then we can also say default for here is gonna be like uh localhost 4242 and we call it domain but it's actually like the base url i don't know i think that was a bad naming choice that we made early on but whatever okay so we're going to create a session a checkout session again and we're passing again the domain url again remember we want to remove payment method types from everything because we're now going to use automatic payment methods that are defined in the dashboard even for connected accounts and what's really neat about that is we can enable ach now as of yesterday so that's super cool now remember that our line items need some like price or price data in this case we're going to use price data to dynamically create something that has um an amount and a currency and in the world where we're using price data instead of a line item we need to specify unit amount instead of just like a raw amount currency is going to be usd and then the name and images are actually going to be inside of the price data nested under product data so we're going to say product data and when we say price data or product data here what we're doing is we are creating the price object and we're creating the product object ad hoc and one really interesting way to think about this is that price data when we say underscore data that is sort of the params to create a price object and we say product underscore data that is the params to create a product object the way that i like to think about it is sort of like accepts nested attributes for with rails where like when you say underscore attributes you know that you're sort of accepting in some data that is going to be used to create a nested resource like um underneath some objects so i don't know hopefully that helps um how you kind of like think about the that naming convention so i don't know um okay hey skye yes this will be available to watch later i'll just leave it up and you can come back and uh and take a look uh i recognize folks probably gotta like bounce around um right at the hour but um yeah totally totally welcome to come watch this later uh okay so request form for the account so we're gonna say request.form for account and then again instead of just rendering back to json and handling a client side here we actually want to redirect and so i can't i think there is a flask method called redirect yep and that takes in the url you want to redirect to session.url and some code i think we want to actually use like 303 for these like the c other code or whatever all right let's get rid of some of these tabs localhost 4242 and we'll check and see if our python implementation is similar enough to our server implementation and it looks like okay so um i'm i'm just gonna take a wild guess and say that the server didn't restart automatically yeah okay so for for flask when you and like when you start up the app you can say app.run and if you if you pass in debug is true then that will it's like sort of like sinatra reload in that like it should reload automatically for you it looks like we also missed some comma or something let's see uh line items oh here we go missing a comma there and we'll just put one here just for safe measure okay so let's try this again fire up the server uh go to local oops localhost 4242 and okay let's try to buy 20 worth of guitar lessons ah right you must provide mode we made the same mistake with ruby so you must provide mode when we switch to the price pattern instead of the line items pattern we need to specify mode of payment in this case because the one time payment but we could also do setup for setup intent where we're just collecting payment details but not actually charging for anything or we can do subscription which is uh to set up a recurring payment refresh the page and we're redirected to checkout so that is sweet okay that's working great and then if we just go to like account.html i can't remember if and what we changed on the server for this so does this just work no oh right okay so the server is just rendering back some json and before it was expecting that the client was going to use that json to um to actually like redirect client side but we're going to instead just use like a redirect here so we'll say redirect and we'll redirect server side just simplifies things a little bit and then here again we want to like have a default of like something so that just in case that base price doesn't end up getting set inside of the um the dot n file that we can still successfully redirect and stuff okay view my teacher dashboard boom we were redirected to the express dashboard again and again i probably got some text message here yep 940 780. okay and we are we're logged in we're logged into the express dashboard okay so that is that's all working good i think that might actually be sort of all oh no right okay so for server.rb which we have over here we added um event oh yeah so check out session async payment succeeded and then we also added another check down here to print sessions payment status so let's do the same for python and we'll say what is the session.payment status and we can print that out um all right and then the other thing we want to do is these actually i can't remember just python yeah okay gosh is it only type like this type work let's see uh i think we can just use dot notation for python but i feel like there is one where we can't use maybe it's data it's either data or type um for because like the underlying dictionary has like a getter or like a reader for that same name so there's like some sort of conflict um which i i don't remember right now but what we can do is we can go back through our process our like checkout process and pay successfully again i want to like just play around with ach some more so if i click on complete payment i think the other thing we can do here is we can actually use um yeah we can say we want to enter bank account details manually and this will go through the micro deposit verification flow which it ends up being like slower but um okay expect a one cent deposit to this account in one to two business days we click done and then i think we receive an email with a link to a stripe hosted page but i'm not 100 sure anyways that should at least tell us whether or not our yeah so our checkout session in this case is unpaid we get like checkout session completed and it's unpaid and that's like fine and then later on you go to confirm the checkout session with those micro deposits um so yeah the the customer will receive an email when like that's done but in order to do that we also need to add checkout session um async payment succeeded as a second event type so we want both checkout session completed and checkout session.async payment succeeded so that we can handle all these new different payment method types okay i think we're in a good spot now with python let's go and talk about um what's the next one we should do any any preferences in the comments um should we do nodejava go.net what do you want to do next php i guess we do php um you let me know adding python servers getting to new [Music] turnout okay all right let's let's see which one do we want to do let's do php next php is a little bit weird um because ooh this one is going to be pretty significant because we need to change from we don't want to use slim anymore the slim framework is yeah the sling framework is super confusing and folks who write php have been frustrated with us using slim because that's usually not what they use and so we want to use some framework that is a little bit easier so we want to like convert it to vanilla php so this one is a little bit more significant i'm going to save that and let's do node first oh also in python we didn't we didn't update our yeah we didn't update it to set our uh um our versioning stuff that we want to set so let's go over to the server look at our current best practices here and we want yeah so this is like so that we can see how the samples are being used and if there's any errors we can like go and work on fixing those okay this one again is called connects direct charge checkout and the api version we want to explicitly set it we don't want to pull it out of the api version or out of the environment variables because we want to make sure that everyone is using exactly the same version because if someone has like a super old api version for instance maybe from 2013 or 2014 then the behavior of the actual api might work differently and so the sample might not actually run for them all right so that's enough of that let's go do node and while we're here we might as well do this same sort of server upgrade for node so let's look at the server here and we want to pass in oh we're not actually doing it for node okay that's oh no this is yeah that's right this is the one we wanna okay server node that's the one we're working on not the one we need to fix okay here we go so for node we want to use this pattern where we pass in the api key and then we also pass in this like app info stuff um again this is like not required for production but it is uh super handy for us to know how if there's any errors and such with the versions of the samples that folks are using okay the session we actually don't need this session as far as i know and we can actually remove that um body parser i think that was like added recently or something to node uh it's so hard to keep track of all this stuff okay you know what we do need though is we need to say ex app.use express url encoded we need to use the url encoded express middleware so that we can receive post requests from the front end and pull off the quantity and the account id from the front end and if yeah so here we want to say like if the process dot base price or we want to do like i don't know 10 10 and we're going to create a checkout session um okay we're gonna hey we've got a dog he's barking hey oh i don't know someone must be outside um so let's remove the payment method types we're gonna add mode payment keep forgetting that then we're going to add inside of our line items we're going to add price data and oh stanley some other dog outside having tons of fun product data oh gosh no so stanley is uh stanley is a standard poodle and he is uh he has this friend that lives across the street um and his friend is a golden retriever and anytime he hears his friend outside he's like i want to go outside please can i go outside let me out let me out of the box i want to go have fun okay so we've got a currency a unit amount a product data we've got our quantity we're setting all this stuff oh look at this we've got string interpolation for node i love it we're passing our stripe account id and then we want to redirect so res.send no it's not that it is it res.redirect and then i think in node it's like this status code first and then the url i don't know we'll have to see all right so if we jump over to where we're running this server we'll jump to node and say npm install install our dependencies in fact we can probably look at that package json and make sure we need it we actually need everything that's in here yeah because i don't think yeah i don't think we need all of it so all right and then we can say node let's see node server or npm actually we need to copy our um our environment variable to here and now we can say npm run or yeah npm run start i think is the thing um yeah see body parts are deprecated okay so it's i think that's part of express now or something like it's like built in am i remembering that incorrectly um and then what else is going on here 500 what's our 500 sources network uh we got we got a 500 on just trying to get oh invalid stripe api version okay so i am guessing this is a wild guess but i'm guessing that's related to the version of stripe node we're using so i'm going to try to pull up the current uh repo for stripe node here and what version are we on now 8 213 8 213 wow that's quite a jump okay um all right well let's npm install again and try this again wow we've been talking for an hour and 15. we're going we're going well what's everyone working on uh have you tried the new remix run the new remix run framework what do you think about it what are your thoughts uh yeah curious to hear if folks are um yeah actually what what what web framework are you using are you using a web framework are you just watching because you're like this is mesmerizing and i like to hear the sound of keys clacking uh yeah okay can we start the server now what do we think let's try it uh npm run start all right it's going we jump over to localhost is it going to be happy or sad about our okay config route now is returning the right numbers we can check out and pay nice forty dollars nice we've got a card we've got this stuff so another cool thing about checkout is that you can use secure customer authentication i don't know if you knew about this but in um in europe there is like this regulation that says that you may or may not be required to present a second form of authentication so you're going to get a pop-up that's like from your bank asking you for a one-time code or free to log in or something and so you can test that out with this special card 4000 and then 3155 is the ending um and yeah we successfully checked out but we have like a bunch of errors response is not defined so i think my guess is that this is okay server 124 all right let's see uh back to server 124. this is in the web hook handler yeah okay so i am guessing this is just res yeah so res instead of response um response 124 this should just be res okay and then we also want to add checkout session payments completed async whatever payment uh nope it's called payment uh async payment succeeded so async payment succeeded okay great uh and again we want to pass like the session or like payment status is session dot payment status oh no i forgot what it is already on the session object on the checkout session object we have some sort of status yeah payment status there we go all right um what else do we need to do here um okay i think this is actually looking pretty good um [Music] we are redirecting oh right and then from our express dashboard instead of sending back the url what we want to do is oh wow this is like a super old way of um of uh using stripe node so here we're creating a login link and then passing in the params and we used to accept a third argument which was a a callback that would let you redirect let me see if this even works anymore so if we go to account um i guess we gotta start the server again we go to this account page and then try to log in what happens whoa okay it's still it still totally works wow i am i'm surprised okay so we want to we want to make this a little bit more modern and say like const link is await that thing and then or yeah maybe we can call it login link and then um yeah i guess that did have some error handling that we're losing here but um response.redirect 303 to that url there's definitely like in every single one of these cases we should be wrapping these in um try catch handlers and that's something we can come back and do later i just want to make sure that we have everything sort of upgraded and that it is working as expected so i think oh right and then i guess like if we want this to automatically reload too we need to use like nodemon or something okay so we go back to localhost go to our slash account page is this gonna work as expected view my teacher dashboard boom okay cool um all right let's see what else do we have we need to um okay let's i think node might actually be ready like i think it's good we don't need to pass that um cool yeah there's a couple there was a couple like old school things here oh look at stripe accounts is doing the same thing okay so we can remove this uh and put it down here and then we can say const accounts is a wait um yeah and then what we want to do is make this an async function for config and we're just passing in this limit 10 so that's pretty low key and now when we refresh as long as this loads we know that endpoint is working fine okay um cool was there anything else here we wanted to clean up in particular i don't think so so let's call node done and let's play around with java so java is a little bit trickier like upgrade node and python okay all right so we're going to jump into java we'll grab the dot n again from ruby and then we will let's look at palm.xml because there's a bunch of dependencies that we used to need that i don't think we need anymore like this json dependency i don't think we need this json one and project lombok i don't think we need that also stripe java is like way beyond there um stripe java so stripe java the current version of stripe java is version 20. wow okay 20 dot i think it's 110 got zero so okay um i jar with dependencies okay so the way that we install dependencies with java is with maven so we say maven package and that should install dependencies and we cross our fingers and hope that it works and it doesn't work okay so cannot find symbol server and json and a couple other things so if we go back um yeah actually um i wonder if we do need this actually this json thing um yeah probably okay because i think we're using that for um i think we're using it to do like json parsing and json formatting or i don't know json some json stuff so maven package is this gonna work i don't know we'll see uh oh wow look at that okay i think i think it installed okay so it's at least building correctly and then um in the readme it gives us this thing that's like okay run this command that should like start up the server what i want to do is um maven package and run that startup thing so that we have one single command that we can run to restart the server every time that we want to and what we're going to do is just head back over to localhost here and refresh the page and hope that everything still works it looks like it might i don't know 400 error okay so it's i think it's expecting that we're gonna pass it some json but we're totally not we're passing it um we're passing it form encoded like form encoded data now so the post body that's coming in has a quantity and an account but i don't know if we need to have like a whole class for receiving that or not so like in i think this is using like java spark and when we receive a post request for java spark the response type is not application json we don't need to parse it i don't think we need to parse it into request body oh and java is still using okay so this this implementation here is still using the older style um where we build up a bunch of hash maps and then use those as the arguments to pass instead of um types so in java we have this builder pattern where we can like use builders to build up the params that we ultimately send to the stripe api so we'll go back through and update all of that in just a second but first i want to see like java spark um html or like form encoded body how do we how do we handle the form included body with with uh java spark is it just request query params let's see um that seems like it might be too easy right quantity and um maybe we need to like also cat like cast it to an integer how does that work um get quantity like our long quantity is equal to this thing and then yeah like casting java spark query param too long let's see um [Music] string utils does anybody know anyone in the comments do you know how to cast it to a long because it's going to come in as a string i'm sure and i i don't know if we can just straight up cast it or if we need to do something fancy um value of maybe something like that uh let's see what was it doing before get quantity i assumed that it was using yeah it was using json so that when you call get quantity it was like parsing it with json as part of the request body but we now we're okay i don't know let's just see if this yells at us um and then the base price here is going to be or maybe can we do that can we just say like new long and we pass in the quantity that we receive from the front end i don't know i wonder if that'll work and then got in dot get so um java dot and uh get with default let's see if this has a helper for getting so c damask damascus um carmen dimascio is this this is the um the library that we use for loading environment variables and it does look like we can pass a default value so let's let's use that also here where we say domain this is going to be localhost localhost 4242 and then for the base price we'll say around a thousand and four yeah um okay uh all right so we've got our quantity coming in so we don't need this anymore and we have our base price that's coming from the environment variable and then we are starting to build up the params for the checkout session so what i'm going to do is actually go to the api reference for creating checkout sessions and i'm going to look at the java one and oh gosh no this one uses hash maps also okay do we have um stripe.com docs quickstart uh i'm hoping this one has like the builder params for um for checkout so java show me the java params here we go this is what we want we want like the builder pattern for creating all the pro it's just like so much nicer than the hash map stuff right okay so we're gonna create a new instance of a session create programs instead of just a hash map we're going to use the classes that are built into stripe java to like make a much better sort of experience here um okay and then what we were doing before with our success url whereas we were just concatenating domain url with whatever so now we're gonna say um let's actually just grab that from here so where was it okay i'm gonna paste it just so i can grab on to this last part um and then gosh okay vim it's like hard to like do a yank in thing and replace like while i'm talking at the same time uh so okay here we go so we want yeah we want to grab this thing and we want to replace this thing with with that so that we have the cancel url okay so what this is doing is it's setting the mode to payment that's good it's adding a line item and in this case it's setting the quantity here but we want to actually use the quantity that we got in from the client and then we're going to set price data and this will define the amount that we want to charge so this is going to be base price currency is hard coded to usd i think in the other servers this was called guitar lessons or something let's double check server.rb um name guitar lesson and then we had some images here and those were so okay so now in order to do images for this builder pattern we need to call like dot add image anytime we're adding um a an item to an array in with this builder pattern we we named the method on the builder add whenever we're setting a value we call set so in stripe java those are like the two patterns that work or that we work with to build up the params we have an add and we have a set so add is when we're adding things to a list and set is when we're when we're setting all right um so now we've got we've got this one line item it has price data it has the currency the unit amount and then we have our product data with our two things um i think that might be it i'm not 100 sure and then we're redirecting right we don't want payment method types anymore we don't need this anymore um currency line items okay oh right but we do need to set um like add the um application fee so in order for us to add the application fee i need to actually go look this up how do we do this with um with connect for strike java i can't remember if we can um if we can just directly add to the params object or oh we can okay here we go request options is a second argument maybe so like we can call session.create we have params and we have request params and request params is where we're going to have the account id so we need to build a request params object and we're going to set the account id based on what was passed into us so we both we got both a quantity and an account um in the query string the account is going to come in as just a string id so this is going to be account id and here down here we'll say this is going to be our account id and then we're going to create the checkout section we're going to redirect to its url but this like none of this stuff actually works either until we have um oh gosh what is it called none of this works until we have a wrapper around it because this create call could like could raise an exception and in java like it won't build unless you wrap those in a try catch which i think is good i think it's good practice um oh look this was already yeah okay so this was already sort of how it was working and we got success and cancel we don't need that part okay we still do need this application fee amount on payment intent params so as part of our session create builder i think we can say dot set payment intent oh let's just go find it go straight java and in our payment intent or create in the payment intent create params class inside of java we're going to have like a oh no i guess it's like check out session crate check out session create params we should have a like set payment intent okay so set payment intent data um set payment intent data and that is going to be one of payment intent data which is going to come off of the session create brand like it's another class so session create params um so inside of stripe java all of these builders that are related to the params for some top level param that we're passing into an api they're all nested underneath the classes so this payment intent data is a class that's nested inside of the session create params class so if we find like class payment intent yeah so payment intent data it's a static class inside of the session create params class and it will have a bunch of stuff here that lets us call like dot um builder dot build and then here we can call like dot set oh gosh it's gonna be like set amount of something set application fee amount here we go okay set the application fee amount to some amount and we do need to calculate what that amount is and i'm hoping there's some helper down here that's already figured that out yeah so compute application fee amount um is must be some helper similar to the other languages that is doing this for us so now we're gonna have this here so we'll say oh gosh yeah okay i messed that all up uh all right so set application fee amount to that all right so let's see if this actually works maybe no oh yeah we got to wrap this we got to wrap this part in a try catch so try um accept stripe exception i think it's not except it must be like catch and then if it if we are successful in creating our checkout session we want to redirect otherwise we want to i don't know like log something out and then response i don't know like we want to return return response dot uh i don't know actually gsan.json of like i don't know i'm not sure what we want to respond with yet like we we can pull off the error message from that exception and like try to return that but for now we'll just yeah we'll keep it like this um all right uh okay so what where are we at where are we at are you ready to try this out yet localhost 4242 uh okay complete payment 500 error what's our error oh you know what we need to restart the server every time we make changes to this we have to like rebuild everything and rerun it and now that i added things i wrote like a bunch of code without testing it out so we're going to need um com.stripe.param.checkouts.sessioncreateparams um if it builds now it does not and it what is it incompatible types bad return in lambda missing return value in line 72 uh okay so do i need to return this see okay uh int cannot be converted to string string cannot be converted to long on line 74. uh 74. um oh right we don't want this to be a long i want this to be a string okay uh in 75 int cannot be converted to string 75 75. oh okay huh interesting okay getting getting warmer getting warmer can't find the symbol on line 81 uh the main url oh did we define that somewhere else shoot um yeah okay so string domain url is m.get domain and the default is localhost 4242 see if that fixes that oh all right well yeah sort of and then 85 what do we got in 85 gosh so many so many errors uh okay so compute application base fee amount is expecting an int as the base price so can we just make this in hint i don't know uh does that does that work int i don't know uh um int maybe um 75 yeah apparently not okay let's just make this compute compute application fee amount let's make this take in oh wait it does huh wait take how about we return along our uh wait can we do that before double can't be converted to long oh my word all right well you kind of get the idea i'm going to take a break i'll be back in a little bit hacking on this but i'm going to let you go and uh yeah hopefully this was fun useful you saw some stuff in a few different languages and we got to play around with stripe checkout stripe connect and the new ach v2 thanks so much for watching and yeah we'll see in the next one

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