---
title: Working on the example for custom Stripe Billing integration
slug: working-on-the-example-for-custom-stripe-billing-integration
published_at: 2020-10-15 06:03:49 +0000
updated_at: 2026-03-04 20:14:43 +0000
summary: 
description: Working on our sample for building a custom @StripeDev billing integration to take recurring payments
tags: []
views: 91
author: CJ Avilla
url: https://www.cjav.dev/videos/working-on-the-example-for-custom-stripe-billing-integration
youtube_url: https://www.youtube.com/watch?v=EnEUt8CCryE
youtube_id: EnEUt8CCryE
embed_url: https://www.youtube.com/embed/EnEUt8CCryE
thumbnail_url: https://i.ytimg.com/vi/EnEUt8CCryE/hqdefault.jpg
type: video
---

# Working on the example for custom Stripe Billing integration

*Published: October 15, 2020*
*Views: 91*

## Watch

[Watch on YouTube](https://www.youtube.com/watch?v=EnEUt8CCryE)

[![Working on the example for custom Stripe Billing integration](https://i.ytimg.com/vi/EnEUt8CCryE/hqdefault.jpg)](https://www.youtube.com/watch?v=EnEUt8CCryE)

## Description

Working on our sample for building a custom @StripeDev billing integration to take recurring payments

## Transcript

[Music] morning folks uh today i&#39;m going to be working on one of our stripe samples for setting up recurring payments and collecting uh yeah collecting like subscription payments we have an existing stripe sample but today i&#39;m going to work on continuing to improve one of our stripe samples here and yeah i thought it might be fun to stream some of this so let me make this just a little bit bigger so i made i have a stream from a couple days ago where we were working through a new flow for starting a brand new subscription this is in beta again please let me know if you would like to test this out um sort of the order of operations is that you sort of create a customer then you create a subscription in this default incomplete state and then you can use the related payment intent or setup intent to confirm the payment on the client side which sort of removes some of the edge cases and error handling that you might have to do in the current world uh when you&#39;re setting up stripes subscriptions and this also unlocks some the ability for us to add some port uh support for some new payment method so today what i&#39;m going to do is take this pr and respond to some of the comments on the pr and also just continue cleaning up the sample so that it works well for us so here what i&#39;m going to do is i have i pulled down the repository right now this is closed source but we&#39;re gonna we&#39;re gonna make this a public repo uh soon um and again this is just like we have an existing stripe sample that shows you a few different subscription use cases but they&#39;re using sort of the old pattern and so we want to create brand new samples that show you the new way for setting up subscriptions and so as part of that we&#39;re also doing a little bit of cleanup here so we&#39;re going to go through and uh and work on the sample a little bit if you wanted to hang out ask any questions you may have or just like chat about stripe in general you&#39;re welcome to do so um and yeah we&#39;ll kind of be it&#39;s gonna be gonna be just kind of like low-key and i&#39;ll talk through what i&#39;m doing and try to answer any questions that come through so uh feel free to drop them in the chat i think uh we&#39;re live on uh periscope twitch and youtube so um i think the comment stream should work for all those we&#39;re using stream yard um all right so the thing that i&#39;m most concerned about is cleaning up the the client um so why don&#39;t we yeah let&#39;s fire this up um nice okay so here if i go into the server and say bundle install and okay and then if i open up let&#39;s see ruby server is just going to just work out of the box i had to like redownload or i recloned the um the repository so i kind of blew away some of my settings and it looks like yeah okay so in my dot n file this is where my api keys are you see my public key secret key webhook secret these are my real keys in test mode i think this is failing because my okay so it should go up to client and over to vanilla js um and then we also need prices basic price and pro price i think that seems right in the server basic um price id end new price id and statictor straight publishable key oh and then we&#39;re taking in the price id uh so the argument will be passed from the client as like basic or premium or something like that and then we&#39;re going to be uppercasing that and passing that into the or like extracting from the environment variables um so yeah i&#39;ll need to track that down but um okay so where are we at here let&#39;s try to let&#39;s try to start the server again ruby server okay is that font big enough too are you able to see that okay should be good um cool okay let&#39;s try this again all right so on this page here we have this email address and then we have a sign up button when you enter your email address what page is this coming from looks like um so when we hit the root route we&#39;re retrieving the index page so the index page is here and what is happening on the index page a whole bunch going on here we&#39;re loading script js so something is happening with script.js and what&#39;s confusing about this right now is that we have 678 lines of javascript in script js that is a little bit difficult to know which pieces go with which page so what i&#39;m going to do is create an index.html i&#39;m actually just going to copy this maybe i&#39;m sorry not index.html index.js and then i&#39;m going to come in here and i&#39;m going to change this to index.js and then i want to just like start tearing this apart um because i don&#39;t think we need a lot of this stuff so this page is purely just to create a new customer right so like really all we need in this case is like this sign in button i don&#39;t think it actually does anything we need the email address and we need to be able to sign up um i don&#39;t think we need this footer i think we just need like the input and a sign up button and that&#39;s it so i&#39;m going to like start by sort of stripping down all of these classes and um okay so let&#39;s oh you know what i think okay you know what i&#39;m making a mistake i have a brand already with all this stuff let me just remove this it hit check out i think all right so this should be a little bit different um [Music] what does this look like okay that&#39;s great simple simple simple simple simple all right so what is my what is my um uh yeah what does my index.html page look like now well it has um yeah it just has an input field and a button to sign up and in fact like we can just even make this even simpler okay um [Music] and are we using sign up form we are okay so what i&#39;m going to do is i&#39;m going to load this in uh script source next.js and i want to make a new index.js file where we have where we just put like all this javascript um okay all right so now it&#39;s 25 lines of javascript and it&#39;s purely for the page which allows you to sort of create a customer sign up and create a customer um and that looks totally fine in my opinion i know like it&#39;s sort of off to the side and such but it should be fine label is email it&#39;s really really simple okay so we have the email address here you should type it in jr example.com and when you click sign up it should create a new customer for you and so what is this doing this is uh create a customer grabs the billing email address um makes a post request to the backend to slash create customer create customer is here create customer is uh let&#39;s see picking in the email address okay so we are taking in the email address and creating the customer and then rendering the json for the customer back to the client and then what are we doing here then we&#39;re saying redirect on the client side we&#39;re redirecting to prices html with that customer&#39;s id in the query string parameters now in practice this customer id should be stored on some like currently authenticated user and uh should be managed like with the session it should not be in the query string params um so i think this is mostly for demonstration purposes but i also believe we could probably do this a little bit better a couple other things to note here we are leaking this into the global scope right because we&#39;re not we don&#39;t have any var or anything here right customer yeah so we&#39;re okay i&#39;m not even going to set this variable i&#39;m just going to say result dot customer we could probably just use like the structuring or something to pull out that customer id but whatever and then in the review here pantera did mention that a preferred way for redirecting is to use the url search params so instead of setting window location href with all this stuff we can create a new params object here and then append the customer id like so and then use the param tostring so that it does like the escaping for us um thank you pantera for writing that for us result dot uh okay so this should be a little bit cleaner just a little bit cleaner and allows us to redirect um we&#39;re not seri yeah we&#39;re not storing anything crazy or extra and very simple very tight and allows us to sort of sign up and i almost want to change the name from index to like register or something so that it&#39;s super clear that this page is like really just for like signing up and then redirecting i think i might also create some comments here so this is like maybe we don&#39;t need some but yeah that&#39;s that&#39;s fine index.js and index.html these go together now we have index.js here we can also maybe have like index.css but um maybe not i think that&#39;s fine and then in css we have oh we do have index.css oh but there&#39;s okay there&#39;s a bunch of tailwind okay yeah we don&#39;t need tailwind okay and in global okay normalize okay yeah sure oh what is this solitus okay i don&#39;t uh i don&#39;t know i don&#39;t think we need any of that business okay all right whatever we&#39;ll just leave it uh like this this should be super simple um for signing up uh and then i noticed that our so let&#39;s like make sure that it&#39;s super simple so our uh our elements here the the billing email address is using the email id attribute here which is good and then i don&#39;t think email submit yeah so i don&#39;t think this email submit button is ever or the email submit id attribute is not ever used so i&#39;m going to remove that also to just like continue simplifying as much as possible so now we have just like a super simple uh form html form here in fact i&#39;m considering removing the body or the main just to even simplify further right um okay so that is looking awesome i think uh let&#39;s let&#39;s keep driving on um all right so we&#39;re looking at the prices page now the idea here is that you select a you select a plan you&#39;re either gonna get basic or you&#39;re going to get premium when we click select what is that doing select price is not defined okay so let&#39;s go fix that so if we go back up to the client here we go to the prices.html um a couple things we want from index we want our our basic css and then at the bottom here we have some more some new javascript for creating the subscription i&#39;m going to call this prices.js um prices.js and make this deferred and [Music] prices.js for right i&#39;m not i&#39;m feeling a little bit unconfident unsure about that uh javascript before i defer deferred i thought i prefer i&#39;m what&#39;s going on i i have had coffee this morning okay yeah it&#39;s differ all right so prices.js is going to contain the content or the html code for our prices page which is should be just this basic stuff so let&#39;s put it here and um i you know some folks will drop in usually into uh into some striped samples and ask you know is it cool if i just go through and make everything es6 so instead of using var we use const or whatever and i&#39;m super torn because on the one hand um it is a little bit uh more modern right but on the other hand there&#39;s still a couple of browsers that don&#39;t like it um so we also get reports that are like you know this doesn&#39;t work in ie whatever so i&#39;m hesitant to change everything to that but um i feel like if we&#39;re going to do it anywhere we should probably just do it everywhere let&#39;s let&#39;s just check really quick can i use uh can i use const where is this not supported okay yeah ie 10 okay that uh partial support how is this partial okay not supported for four in or four of loops all right let&#39;s let&#39;s let&#39;s do it let&#39;s make all of these the correct const um const uh const all right what about arrow functions is that can i use arrow functions everywhere yet um arrow functions so less coverage with arrow functions for sure especially ie11 so let&#39;s stick with just anonymous functions that&#39;s fine it&#39;s not that bad if you&#39;re modern and super cool you can change it to your arrow functions to think um okay so now we have our prices page script tag at the very top um on submit select price okay so let&#39;s change let&#39;s change how this works so instead of having an on click handler let&#39;s oh gosh okay value no classes so we have a button its id is submit basic and the other okay so this is this should be select premium and this one should be select basic and then value is basic and the class is blah blah blah we have a type button all right so let&#39;s um i don&#39;t know why these are labels these should be um i don&#39;t know some other thing okay so submit basic and submit premium we have a couple options here uh one idea is that we have we just register a click handler and when clicked we call some create subscription function and pass forward some value from that button right like we can just say um you know when you click on submit basic then call the create subscription function passing in basic when you call submit premium call the create subscription function pass in submit premium i uh so one thing that&#39;s awesome about the new products and prices model is that you can use lookup keys for your prices and i kind of wonder if we should be using lookup key instead of uh price ids in environment variables because i think that&#39;s probably a better like best practice to follow and so i&#39;m i&#39;m almost wondering if we want to make this entire page actually rendered based on the prices that you have or i&#39;m sorry based on the lookup keys would that make it more challenging to follow um yeah okay let&#39;s keep it simple let&#39;s keep it simple so we&#39;re going to have submit basic submit premium and over here what we want to do okay so we have our basic button and we have it is registering a click handler which is calling this create subscription or it&#39;s like making a post request to create a subscription um one thing i think i want to do here is extract the logic for creating a subscription and then pass in this price id so this is actually like not super not super cool uh let&#39;s let&#39;s create it down here so function create subscription with a certain price and customer uh id um and then this is like price i don&#39;t know it&#39;s not it&#39;s like yeah i&#39;m going to call it price lookup price it&#39;s not really the id of the price it is like the thing that is indexing into the environment variables it&#39;s like price key or something like uh price price lookup uh yeah i&#39;m just going to call it price lookup and then cut all this business paste it in here return and then what we can do is we can say um create subscription dot then exalt and then do something with the result up here okay um and then in this new flow when we&#39;re creating the subscription we&#39;re creating it in this default incomplete state which means that when we&#39;re creating this subscription right here it&#39;s not actually charging any money the first time around we have to then like confirm the subscription later and this is all to support secure customer authentication and to unlock some new sorts of payment methods so um so we&#39;ve got a basic button and that is uh doing git element by id submit basic and when the basic button is clicked we want to pass in the customer id and actually let&#39;s do this put this inside of here and then we don&#39;t have to pass the customer id around um and we just want to pass in like uh basic here and same thing with uh premium right uh premium button oops yeah okay and then we want to pass in premium all right so this is like yeah super basic way to do this but we have one click handler for the basic button one click handler for the premium button when each of those are clicked we&#39;re going to call create subscription and pass down the price lookup price ah man okay so i&#39;m just gonna call it price id i think um price reference price level plan level something like that uh might be kind of interesting whatever let&#39;s just call it price id um price id all right and then what are we doing here we are catching errors and putting them in the console uh and then we&#39;re redirecting again we&#39;re redirecting to another page so let&#39;s follow the same sort of pattern here and the page we&#39;re going to is called pay and we need the subscription id in the query string so data dot subscription id is what i would expect since when we create the customer server.rb when we create the customer we&#39;re sending back customer when we create the subscription okay so this is an inconsistency here in the create customer case we&#39;re sending back a json object with customer with like a customer nested inside of customer and then in create subscription we were just sending back the whole subscription i think we should simplify and have them both just return the json for the object uh i don&#39;t see a reason well okay if we ever wanted to send other stuff back then it might be okay i&#39;m changing my mind if you ever want to send other stuff back in addition to the customer or the subscription uh then we would want to already have it in this shape so we don&#39;t have to like we can easily just add a new thing that we&#39;re responding with that&#39;s like in addition to the customer or in addition to the subscription we might want to send some other stuff so let&#39;s nest them both and let&#39;s make that like the standard pattern um yeah okay so let&#39;s see so when we receive a post request to slash create subscription as we are sending here we are going to receive a price id from the client and this price id is actually going to be something like basic or premium it&#39;s not a real price id and then we&#39;re expecting that in the environment variables we have some key basic that points at some price id uh so let&#39;s let&#39;s do this price uh price id is equal to uh n data price id dot up case so that&#39;s the actual price id that we&#39;re going to use now if you wanted to uh start a subscription with um like a setup fee or something then you could do that uh here also with an add line items um so when you&#39;re creating a subscription wow that&#39;s tiny you can you can pass in right we&#39;re passing in items here that has like the price the id of the price that&#39;s what we&#39;re doing here with this items is a list of objects and the objects have a property price which has this price id um you can also have this add invoice items which allows you to add like one-time setup fees or one-time sort of fees that are applied to the first invoice so if you have a setup fee you would just say like add line items um or add invoice items sorry add invoice items which i believe is a list yeah and it would look similarly price and this would be like your one time setup fee price id or something but we&#39;re not doing that today we are just going to use this default incomplete again this is a feature that&#39;s in beta so if you wanted to test this out let me know we are we are definitely looking for folks to try it out so um yeah so please let me know if you would like to participate in that beta i&#39;m going to clean this up to follow our style guides i know that in ruby you don&#39;t need to use these curly braces if the entire thing that you&#39;re sending as the argument is a hash but to be consistent we are going to use those curly braces as that match is sort of the stripe style for our documentation and also allows us to kind of keep a close alignment between what we&#39;re sampling in the examples and what we&#39;re actually showing on the snippets um the reason why we use these curly braces is that all of these api methods in stripe ruby accept two our two hash arguments the first one being all of the sort of uh resource payload like the the request body um that is going to configure whatever object we&#39;re creating and then there&#39;s a second argument called request options where you if you&#39;re using stripe connect or if you&#39;re like specifying an api version or doing other fancy stuff you send that as a second hash argument and it&#39;s much easier to understand if you start out with the first argument already using the curly braces and delimiting between the first argument secondary so that&#39;s just kind of a stylistic thing but all right so we&#39;re sending in the price id we&#39;re sitting in the customer id um and i&#39;m going to pull this one out also because uh in practice you probably are gonna pull this um out of like this is gonna come um likely like this is a likely stored in your authenticated user so here you&#39;re probably going to do something like current user.stripe customer id or something like that um it&#39;s not going to be passed in from the client this is this the way that we&#39;re doing this is just for demonstration and because we don&#39;t have a database so we&#39;re passing this okay so here we are we&#39;re passing the price id subscription id then we&#39;ll return we&#39;re resolving and then we&#39;re handling all of this stuff cool so in fact like i think we can probably just call createcustomer and then we don&#39;t actually need to do anything after that uh with the result i&#39;m going to leave the create customer function returning the result of fetch so that if we wanted to we could chain on some other calls here but we don&#39;t necessarily need to we are preventing default on the button click just in case this is embedded in some sort of form uh and then we are manually handing the redirect on the client this will make it also like sort of nice to work with um when dealing with uh react or something else so like we&#39;re just handling like everything sort of on the client in practice i might make it redirect from the server if i was using rails or django or something i don&#39;t know but for now this is this is cool we&#39;ve got a super simple create subscription thing we have this div subscription create errors and i&#39;m going to leave this in here even though we&#39;re not necessarily using it but i&#39;m going to add a to do to do populate in failures uh this should be this should be totally fine for now all right so let&#39;s go back to our uh our page here refresh the page so select a plan we got basic five bucks a month premium 15 bucks a month um but i already know that i&#39;m passing down basic and premium and those are not in my environment variables so if i go back up to server ruby dot end they&#39;re called basic price id and pro price id so i&#39;m just going to copy those and then rename them to basic and premium uh and then in the in like the root of the project should have a dot end dot example that has basic and premium and we do okay so i don&#39;t know why we need that separate thing there we shouldn&#39;t need that okay all right so that&#39;s cool um i&#39;m i&#39;m getting more and more pleased with this page and i think that it&#39;s looking pretty good let&#39;s see how let&#39;s see how it runs let&#39;s clear the errors uh and then click basic and see what happens okay so create subscription got a 400 and let&#39;s look at the logs so yep we just got a 400 on create subscription so what is going on oh we probably need to refresh or restart the server after changing our environment variables um and then refresh click select okay so it created it but we don&#39;t have a query a question mark between the html page.html and the actual query string so let&#39;s go fix that so in our redirect where are we redirecting here we are redirecting here and this should be question mark sure so we go back refresh the page click select and all right so we created a subscription let&#39;s take a look at what that looks like stripe subscriptions retrieve and then we can paste in the id this is using the stripe cli incredibly handy super useful for building and testing your integrations all right so we&#39;ve got a new subscription it&#39;s set up as expected we have this customer that ends in eight h which is the customer id up here um and then you&#39;ll notice the status down here is incomplete so it&#39;ll be incomplete for i think it&#39;s up to 23 hours uh i believe it&#39;s 23 hours and it&#39;s either 23 or 24 and then after if it stays incomplete for that long then it will go to incomplete expired which is a terminal state for the subscription so reflecting on how this works right like if you get to this point you&#39;re like oh actually i don&#39;t want the basic i want the premium and you want to change your plan it&#39;s a little bit late to do that right like you&#39;ve kind of already picked the plan level um and we&#39;ve already created the subscription so in order to update the subscription we would need to start like taking keeping track of the state and then like if we go back to pick a different plan cancelling the subscription and such which i think is okay but i also think that um i think it might be all right to just leave it and allow it to expire as incomplete um incomplete expired so i think we might need to come back to that but um let&#39;s just let&#39;s just leave that as is for now all right so the full name and then we have the full name in the cart this is on the pay page so let&#39;s go to the pay page and uh hack around on that for a bit so we got pay which has some javascript at the bottom which is looking good so let&#39;s uh let&#39;s add pay.js and i&#39;m going to just cut the javascript here and move it into here and then i am going to load this up pay.js before okay so on the payment page let&#39;s take a look at our um our content here so we&#39;ve got a label for grid first name not sure if we need grid at all label for name and then we have the id in fact yeah that&#39;s the right id and four attribute matching and then i don&#39;t think we need this div um i don&#39;t need it at all all right and then let&#39;s okay so you guys if we take a quick gander here uh i just want to grab some standard css all right so what&#39;s going on here we have a label for the name the names placeholder is uh it says first and last name it is required and then we have the label for the card so this is going to be card element card element errors and then we have a submit payment button with us the id submit so the card element is where the like stripe.js element is going to be mounted and that will have inputs for the number cbc postal code etc etc if you want you can separate those out so you have a card number element which is like a separate control from the cbc and whatever you can style that if you&#39;re curious about how to do that i would check out the the elements there&#39;s like a page about elements um that has some really good stuff all right so then in the uh on the client right so what&#39;s happening here is we need to um we need to retrieve the subscription and we need to use the subscriptions pendings or its uh latest invoices payment intents client secret in order to confirm that client secret on the client so we want to like enter a card number here 4242 number is good and then we&#39;re going to use that payment method in order to confirm the subscription which starts the subscription now there&#39;s one little hiccup where when that payment is created or when the payment method is created that it represents those payment details those card details they are not necessarily set as the default payment on that subscription so we&#39;re going to need a like a follow-up step where after we have created and confirmed the subscription we also need to attach the or i&#39;m sorry not attached but set that payment method as the default on the subscription so let&#39;s go through all of those steps and make sure everything works as expected so um page as okay so at the top we&#39;re pulling out the subscription id uh we also have the customer id there but i&#39;m not sure if we need that or not customer yeah i don&#39;t think we&#39;re actually using the customer id anywhere which makes me wonder if we need to pass it at the last step but whatever here we are initializing an instance of stripe and we&#39;re passing in our publishable key this we definitely want to update so that it fetches from the um so that it fetches from the environment variables so uh at the very beginning here let&#39;s say like function like and what else okay let&#39;s see trying to think through we can just make that fetch request yeah so fetch so we have an api endpoint for retrieving the config which just is just the publishable key so let&#39;s say fetch to slash config let&#39;s see fetch is it again oops etch it is a get okay so let&#39;s say we&#39;re on pjs yep okay so fetch config then i think we have to do that json thing the magic json trick so then here we should get the um result which should have a publishable key on it and i think we can say like at the top we&#39;ll say let stripe and type equals result dot publishable key all right so that should um at the top we&#39;re creating an uh there&#39;s like a variable called stripe which is going to hold the instance of stripe we are going to hit our back end to slash config um and when that promise resolves we will be calling result.json to get the json version of that response deserialized into a json object and then on that json result we have a publishable key let&#39;s actually just like clean this up and i no yeah i think because that returned the promise so it&#39;s yeah it would be weird to put it in there okay so then we&#39;ve got our stripe our instance of stripe initialized so that should be fine cool so after that happens let&#39;s see so where are we actually using this we&#39;re using this to fetch okay so we&#39;ve got our params so we have like uh extract furry string params fetch public key and initialize stripe and then we also want to initialize an instance of stripe elements um and i think we can do this just inside of here um so stripe.js elements allows us this is where we&#39;re like creating an instance of the um the stripe.js elements object and then we&#39;re going to create a card element and mount that onto that card element div that we have in our html so i&#39;m going to just drop that inside of our um like the success block here after we have fetched config because we don&#39;t want to initialize stripe elements until after we have the instance of stripe created so we need to do this after this happens and it just seems easier to keep it just kind of like right in here let&#39;s see if that&#39;s true because i think oh actually yeah because we&#39;re going to need that card element later so let&#39;s create stripe and card element as we&#39;re using let because we want to modify what that is what that variable is referring to if we use const we can&#39;t change the reference so we&#39;re modifying what that is referring to and then we&#39;re going to use it later so we&#39;re also saying let client secret um i&#39;m going to yeah i think i&#39;m just going to leave that here so we&#39;re saying now fetch subscription to retrieve the client secret this is the client secret that we need to um in order to confirm the payment so we&#39;re again using let because we&#39;re going to change reference to what this client secret thing looks at um and then i don&#39;t know if i need to pass i need to use fetch this way or if i can just use like just straight up fetch with the url uh let&#39;s see so if we go to the console sources tab we&#39;re on the pay page go to pay.js click here refresh so we are hitting that we&#39;re getting the result back and okay so i think we can simplify this call by removing all this stuff and i think we can just do that so here we are using that query string parameter from up above so maybe we should just move this down below yeah let&#39;s do that just to kind of keep stuff organized so it&#39;s like step one and then we have step two and we have step three fetch the subscription to retrieve the client secret um and oh here we are using arrow functions okay i wonder if this is what&#39;s messing up um those folks who are using ie 11 or whatever function i know i know i want to use the new cool fancy stuff too but it just doesn&#39;t doesn&#39;t work in some browsers yet so i i hate to do it but we gotta we gotta make it work gotta make it work folks okay all right so what&#39;s happening here so we&#39;re calling fetch to the subscription endpoint just to retrieve the subscription by id we&#39;re passing subscription id in and then we&#39;re expecting that we&#39;re going to get back some json and let&#39;s see let&#39;s make these also okay and then these should be just rest rest grasp rest dot subscription right because we want to make sure that everything is nested and this oh man i don&#39;t like this but uh the way that you get at the client secret is you have to go through the responses subscriptions latest invoices payment intense client secret and that&#39;s that&#39;s how you that&#39;s how you find it all right so then after this is all happening on page load right so step one step two and step three are all happening on page load this is like two api requests to go one is to get the um the api key the other is to retrieve the subscription that we just created with the sole purpose of extracting its latest invoices payment intense client secret let&#39;s go back to the server um and we go to slash subscription not that one not that one not that one all right so when we create the subscription generally you want to expand this latest invoices payment intent because you want to use that payment intent to confirm on the client in this case we are not actually using this information on that page where this create subscription is happening so i&#39;m going to delete that and instead we have it down here latest invoices payment intent okay so we&#39;re going to say subscription is equal to this thing and then instead of returning just the json for it subscription and that&#39;s going to be why are we using strings there too we don&#39;t need those subscription so let&#39;s clean that up a little bit too all right because in ruby we can use symbols we don&#39;t need to use strings all right this is not python um all right so in this case we want to retrieve the subscription that was just created in the previous step and we do want to expand the latest invoices payment intent because uh we need to retrieve this related payment intent because we want the client secret that is attached to that payment intent in order to confirm on the client all right so this is um we removed it from the previous step in order to because we weren&#39;t using it on that page we&#39;re only using it on this page so let&#39;s let&#39;s go back over here refresh the page and let&#39;s kind of make sure that stuff is all happening as expected here so refresh the page we get into step three actually yeah i&#39;m going to add breaks step one step two and step three so we refresh the page we break on step two first because this is synchronous and we got the subscription id i believe out of there yep we got the subscription id we push play step one we&#39;re creating the card element we have our publishable key that all looks good okay so step one is working well and as expected and then step three what are we looking at here we got our response back and the response has the subscription at the top level so something i didn&#39;t okay so that didn&#39;t work as expected oh no it is it&#39;s just it&#39;s showing me the response wait what let&#39;s see resp uh subscription okay so why it&#39;s subscription subscription to subscription to json it should totally work refresh the page uh do i need to restart the server or something oh notre reload okay someday i&#39;ll figure out how to do that uh all right so we get back the response and the response does have now a subscription and it has all this stuff okay so does that have a client secret it looks like it does we&#39;ve got our client secret set great so now we can move on to the next step which is dealing with this submit button up here okay so we&#39;ve got our first name last name we&#39;ve got a card element and then this huge button that&#39;s like covering everything up so let&#39;s do some css uh so inspect um inspect this thing uh no telemarker i do not want to talk to you there have been so many political calls lately i swear i&#39;m getting like 10 political calls per day we&#39;re in a battleground state as uh uh man it is it&#39;s crazy like our polling information must be getting sold like everywhere but oh that&#39;s good water check it out i um uh i went to a conf or i went to like a it wasn&#39;t a conference it was a workshop by eve porcello and um about graphql and i got this super cool sticker that says ask me about graphql and i just found all the stickers i went to the conference like three years ago two years ago or something um and i found the sticker i was so pumped um so i put on my water bottle so thank you uh thanks eve and uh yeah okay where are we at where are we at anyone using graphql uh yeah super curious if you would be interested in some graphql demos for working with stripe so let me know in the comments also let me know in the comments what you&#39;re building that would be super helpful would love to know what you&#39;re working on and also if this if all this stuff is helpful all right so oh we&#39;re not even working on this bit yet okay so we need to fix we need to fix the css wish me luck here we go why is this styled so fancy weight or width height font wait go okay go away stuff what is this thing okay so my input box is going all the way across okay let&#39;s go back over here to pay let&#39;s make this thing class field i think this one is a class field um nope gonna wrap these in divs and uh part element errors yeah okay let&#39;s wrap the button and div and okay so none of that worked as expected uh all right so i don&#39;t like css i don&#39;t sure don&#39;t tell you one thing though i definitely don&#39;t think that uh i guess i should get in the way of you building your integration or being successful like the page could totally look like this works fine looks like garbage but you can always make it make it pretty later um what did i do client have pay all right so what&#39;s going on here if this this that that looks that looks fine test okay also i noticed that we have this full name input but i don&#39;t think we&#39;re using it anywhere yet in pjs uh full let&#39;s see name yeah we&#39;re not even using name anywhere so um okay so handle form submission all right get element by id of the submit payment button so that gives us our button and then on click we&#39;re going to prevent default and then we&#39;re going to confirm the card payment with this client secret and then the payment method being the card element and then we&#39;re going to result like in the result we&#39;re going to do stuff like throw errors or whatever so let&#39;s go um let&#39;s figure out what we need to do with this full name situation by looking at the stripe.js confirm card payment method and take a look um confirm pardon okay so billing details inside billing details we can pass the name billing details name and this should just be the value extracted from the name input um let&#39;s see the name input name name input.value okay so now we&#39;re using the name input that&#39;s good um all right so test use the 4242 card click subscribe so clicking subscribe should come into this click handler and it does and then we get the name input and its value is test that&#39;s good that matches what we typed in and now we&#39;re going to pass the client secret which looks correct the card element which will be mounted earlier the billing details name um the name input and then we should just yeah we should see this result here so we are either going to alert subscribed great or we would alert some sort of error let&#39;s try again with uh actually yeah i know so like after now that it&#39;s confirmed see what does it do it should fail because we&#39;re not conf like the payment is already confirmed so i think this might fail let&#39;s see a processing error occurred yeah because the payment was already confirmed um okay well at least it tells you an error happened all right so we need to go through the entire flow again and instead of saying subscribed we have another page called the account page so why don&#39;t we redirect to the account page if that is successful so looking back at our prices thing here 3y uh hey okay count i don&#39;t know what we need i don&#39;t know what we need for the account page but let&#39;s just assume that we&#39;re going to use the same query string params that we already have um which will be the customer and the subscription id and i think we probably just need a customer but i don&#39;t actually know what&#39;s going on in the account page yet so let&#39;s just let&#39;s just check it out so if we go through the entire process again we start from the beginning we enter in jenny [Music] and that one is also broken so from index.js should be a question mark refresh fresh any rosen sign up okay we get to pick a plan do we want basic or premium let&#39;s do premium this time just to make sure it works cool and we created a subscription we redirected jenny rosen is my name and my card is no let&#39;s do uh the sci sca card sca test card here which should open the sca modal it does cool so that looks good complete authentication fantastic all right that&#39;s excellent we&#39;re at an hour i&#39;m feeling pretty good about those three pages let&#39;s try to get through this account settings page so we have um here we&#39;re showing a current price the credit card and we have a button to ch change the pricing plan and to cancel the subscriptions so what i think we want to do is simplify this so that we have a single page which is purely for showing you how to cancel a subscription and then we can have a single page which is purely for showing you how to change your pricing plan and this account page can just show you like um what the current price is what your current card on file is and that&#39;s it let&#39;s do that so let&#39;s go to the account page um and let&#39;s call this account.js if we even need account.js remove some remove all that css um the title of this is like your account page or something yeah let&#39;s go do a quick quick review title here should be like register or sign up line up a oh yeah um a pricing okay just super simple super super simple um we don&#39;t need meta description right um a description [Music] don&#39;t need a description and i honestly don&#39;t think we need this all right just trying to keep it as simple as possible folks um okay wow that&#39;s beautiful html right it&#39;s just super super clean super simple all right so again removing all this business okay sign out button doesn&#39;t actually just link that goes back to the root we can add that back later if we want uh subscription cancelled view uh maybe we just show the status of the subscription instead restart demo and log out both go to the same thing uh subscription settings div with a bunch of stuff uh current price okay so things we want things we want to keep current price print like plan level current price status of the subscription maybe like the next um billing interval like what is it going to renew um and then like link to change plan link to update payment method link to cancel okay so [Music] yeah i&#39;m gonna delete all this everything it&#39;s all going the entire thing footer again underneath the body that&#39;s so interesting all right let&#39;s see here [Music] okay bomb all right so on the account page what do we want to do so in account.js we want to render um something that says like uh out and then we have a like super simple div that shows that shows like print plan and this will be like basic or premium and we can have another div here um um another div here for the current price same sort of deal right and the price is going to be something like um 5 usd or 14 usd and then status of the subscription subscription status and this will be like uh active uh cancel and complete stuff like that okay cool cool cool like next next invoice and that&#39;ll be some date and what else do we have okay so now let&#39;s add some links so like uh change dot html um update i don&#39;t know if we were using kabob case here what for file names payment method and then finally cancel and i don&#39;t know if we&#39;re going to get to update payment method we might just have like change and cancel um but it would be nice if the if the demo included all three of those so let&#39;s um let&#39;s start with just working on the account page first and populating the current plan price and subscription status so refresh the page obviously it looks way worse than it did before but it should be way more easy to understand um when you&#39;re dropping into this for the first time okay so account.js is going to retrieve um the current subscription all right so we want to say like a fetch subscription and again we&#39;re going to need the subscription id this is actually going to reuse the same endpoint as the last page for retrieving the subscription let&#39;s see yeah um yeah okay what did we use over here pay subscription yeah so all right so we pull out the subscription id again from the query string params right we have the subscription id here um so we&#39;re going to retrieve the subscription id and when we get the subscription back oh we have to change these again function and [Music] so the console.log okay so here what we want to do is like set set of like values for a bunch of divs fans um given the given that subscription so let&#39;s go back and just like grab reference to all those things so um so my like i have a shortcut here where i do like gid and then tab and i&#39;m using vim snip mate to um populate the content there but i&#39;m using var and document get element by id instead of like query selector with the cool new stuff so i think i&#39;m going to change that to um to the newer style and i&#39;ll use const since we&#39;re pretty confident that it&#39;ll be that&#39;ll work everywhere get a quick swig here what&#39;s up colin how&#39;s it going uh okay so edit uh vim uh plugins in snippets uh and then i have some html snippets here at the bottom gid yeah okay so this should be now const and instead of get element by id i want to use this super cool new uh query selector thing and just pass in the like css selector so i think it&#39;s like query selector right is that it said simple huh boom nope did not save nope is there another one oh you know what i probably have the same thing in both html and javascript snippets i do so same thing so query selector and hashtag okay boom okay btn no all right uh all right back to where we were okay account.html for the current plan uh we want to grab reference to the current plan so eid current plan uh span sure current plan and when we retrieve the response uh with the subscription which looks like this refresh the page and let&#39;s okay we need to like at least console.log it or something console.dir make it so that it prints out like um like a browsable object which is kind of cool instead of console.log console.dir if you have a json object you&#39;re taking a look at so that gives us back a subscription and that thing has items in this case we&#39;re always only using one invoice item and so we should be able to grab the list of items and their data and the first thing in their data and that thing&#39;s price and that thing&#39;s prices uh product and that prices product&#39;s name so uh let&#39;s see so what is the best way to go about doing i&#39;m not sure i&#39;m just gonna print the current price um unit amount yeah let&#39;s just let&#39;s just do that so we&#39;ll instead of having current plan and current price we will print the current yeah okay so what we want to do here is we want to say like uh current plan current price span and that can that&#39;s going to be set to the value we get back so current price span dot value or dot inner text is equal to um so let&#39;s pull off some stuff here so const subscription is response dot subscription and then const uh invoice or line subscription let&#39;s just say item is subscription items.data and the first one and this would be like item.price unit amount and we&#39;ll see how that works refresh the page hey look at that current price is set to 1400 that is correct technically um we could do some formatting let&#39;s see hoodoo format look not like sense uh maybe someone wants to contribute that later but uh okay so we&#39;ve got the current price and that&#39;s set to 1400 and instead of this i can set like um dot dot dot while it&#39;s retrieving it so that well yeah it&#39;s it&#39;s pretty quick but whatever all right the same thing with status let&#39;s do that so gid subscription or maybe just status span subscription status status span dot inner text is equal to subscription.status page and now we have a status which is active again i&#39;m going to pre-fill this tag thing with just ellipses so that it shows that something is probably fetching uh next invoice is some date so what is the next invoice date so we have the current period end and this gives us a unix timestamp super handy uh super handy alfred workflow here that i really like is called df and you just say df space and then drop in a unix timestamp and it tells you like the human readable version of that in a few different formats and you can just like copy to uh to jump around so this is november 14 which is in one month from now which looks correct so we can say next invoice date um uh i&#39;m going to change the name there to next invoice at const next invoice at span wait next invoice at span is next invoice at and its value is going to be next invoice at span is equal to subscription dot current period and again we like need to format this so it doesn&#39;t look like some uh wild thing here current period end i spell that wrong current period end nope oh i just said it&#39;s inner text boom okay so it&#39;s just printing out a unix timestamp right now but we can make that pretty um should we do that now let&#39;s see and should i put these inside here and should i separate more concerns like i&#39;m wondering in in production what i would do here is i would separate these out into like different functions and utility helpers and some other like little classes um but to keep it super simple i think maybe just uh printing it like this should be should be fine um one thing that we could do is we can also grab the prices currency which is in usd so we could we could sort of format this a little bit better yeah so let&#39;s make the price show like the the price amount um divided by 100 and then let&#39;s put also the currency item.price.currency and let&#39;s see okay 14 usd that&#39;s a little bit better um and then we can also say like slash meaning per and then we can put the item.price.recurring.interval which should give us month right that&#39;s weird hey i found a bug in chrome that&#39;s cool this is a uh this is supposed to like fold down below but check that out that is like definitely not folding down below right like this little arrow supposed to like pop out the stuff below it but it&#39;s not doing that i wonder if if i refresh the page let&#39;s see uh well i know it&#39;s okay so here since i&#39;m like reaching into the item and pulling out a lot of stuff about the price but not necessarily about the item i think i&#39;m going to change this to be price here and i&#39;m going to grab that price and then kind of just clean this up just a bit so we have less fewer violations of the law of demeter or the law of demeter how do you say that so cool now the current price shows like 14 usd per month subscription status is active the next invoice is on this weird date let&#39;s see is it as easy as just like new date and passing that in nope is it as easy as b dot parse i&#39;m passing it in nope date dot uh if we can&#39;t figure it out super quick we&#39;ll just bail on it um date what if we just pass into the date constructor like that hey that is that&#39;s actually wrong october 14 is today current period end should be yeah it should be a month from now why is this that&#39;s weird it&#39;s like exactly a month off all right well dates dates are weird but uh let&#39;s let&#39;s call that good for now we can come back and format things later um all right so yeah we don&#39;t need that comment anymore so we are fetching the subscription um values for a bunch of spans yeah um that&#39;s clean enough green enough for now uh all right refresh the page everything looks good let&#39;s make a let&#39;s work on our um change plan view and yeah this is a super simple page just for like retrieving stuff um okay love and get all right so we&#39;re an hour 20 into this hour 15 into this so i think we&#39;ll go for just a bit longer and try to clean up the um work on this change plan uh cancel should be pretty trivial um oh you know what we forgot to do completely is okay so we gotta we gotta step step back just a bit dang all right uh okay so what&#39;s happening on the pay page is after you create the subscription and i mentioned this but um the thing that we need to do before we redirect is we need to like make a request to update the default payment method on the subscription this is kind of like um yeah i don&#39;t like that we have to do this step but we have to so what how do we want to handle this so we have just confirmed the card payment we know that the subscription is now active um one way that we might do this is in the web hook handler like if you receive uh a web hook event for customer subscription updated and if it is a subscription that you don&#39;t know about then like maybe you have updated the subscriptions payment method um all right so what do we want to do here what do we want to do um [Music] let&#39;s see i think we might want to make the call update customer this is kind of a design decision that we we probably need to make with the team that&#39;s like writing the guide for for um okay so we already we do have a method called set default payment method and what is this thing doing this is calling update and [Music] passing in the customer id and then this invoice settings object which has the default payment method which is taking in the default payment method okay so we this is this is actually the same as the other one okay so set default payment method is that what we want to call this hmm set default payment method payment method update payment method it could just be like a put request or it could be um customer put request or it could be like slash customer slash update payment method and it also could be this could be like a post or put it could also be called um just default payment method default underscore payment method uh um customer payment method the put request ah okay i i don&#39;t like the name but whatever let&#39;s just do it let&#39;s just use it so here over here what we want to do is we want to make a post request to set default payment method and we want to pass in the payment method id so we need to pass in the customer id and the payment method id which is going to be on the result here because this result will be an instance of a intent i believe so this should be like result.payment method.id and then on success of that that&#39;s when we actually want to redirect okay so that&#39;s all right so um handle the form submission we are confirming like create payment method and confirm human intent and then we are setting setting the default payment method set the default payment method on the customer you can technically set the default payment method on the customer or on the subscription um but here we&#39;re just going to set it on the customer and then redirect like so all right so let&#39;s go let&#39;s go all the way back through the whole flow so we have jenny.rosen at example.com we click sign up and then we click basic it&#39;s created a new subscription here&#39;s the new thing we have to like test out and also this should return not customer but customer nested because that&#39;s our pattern that is our convention i&#39;m going to change this before i ever forget to okay let&#39;s do them all subscription method consistency is key ah this doesn&#39;t need to be like that either that&#39;s cool um okay what do we got what do we got going on here what have we got going on here so we are create customer create subscription those are looking good we&#39;ve got our retrieve subscription we&#39;re expanding the right stuff now we&#39;ve got our set default payment method um and the set default payment method is going to parse the host body this is also like another conventional thing is putting parens if you are calling a method on like the right hand side of an equal sign because weird things happen sometimes uh in ruby if you don&#39;t do that [Music] okay so create subscription we are getting off track a little bit all right so we are updating setting the default okay so let&#39;s see you know what we need to refresh the server and then yep okay so test 4242 card subscribe and here we are we are in we so we&#39;ve successfully created or confirmed the payment intent we got back okay so the result.paymentintent.paymentmethod so this is this is wrong [Music] the result.paymentintent payment method that&#39;s your yeah um but we already confirmed it so we gotta start over all right let&#39;s do that annie rosen at example.com basic i um i&#39;ve been doing like a little bit of research around uh using loopback so we can play some music here at least even if it was just like a little bit of like a chill sort of uh creative commons youtube authorized situation uh that would be pretty nice okay so we have customer id up here but i think i may have deleted it because we weren&#39;t using it so i&#39;m gonna go get that back okay back back get me and resonant example.com basic rest type in everything and then we should enter this and then this right subscribe okay we&#39;re confirming the payment intent we confirmed it and now we have a payment method we have a customer id and we hit play and we get down here and we are extracting the params converting them to a string redirecting the customer page we&#39;ve got okay cool so that is all working and now what i wanted to confirm is if this customer has a default payment method which we can do the stripe cli again so stripe customers retrieve uh nope and we need to pass the customer id and we&#39;re looking for the invoice settings default payment method to be set so here we have the customer and here&#39;s the invoice settings and it does have this default payment method which is great because this means that when the subscription cycles in the future it will use this payment method it&#39;s odd but by default when you set up the subscription it&#39;s not going to save that payment method we need to be explicit about setting the payment method id um okay so what is next i think we&#39;re solid with the pay page um we were we were talking about moving on to the um what was it the first one is like the change plan page let&#39;s do cancel first because that&#39;s a little easier cancel out html um and are you sure you want to cancel uh yeah i&#39;m sure uh button and that&#39;s gonna be like cancel button and it&#39;ll say cancel cancel.js and all right that&#39;s pretty good insole.js cancel.js it&#39;s going to have a function which is going to pull out the subscription id and what else is it going to do okay another another snippet i need to fix um [Music] let&#39;s see here um cancel what we can do for cancel so when someone clicks that cancel button pencil btn i think i called it cancel button am i being inconsistent with that btn signup form but we are being a little bit inconsistent in that for the sign up form we&#39;re using the the form but for the other stuff we&#39;re using the button so let&#39;s clean that up just a little bit and only use the button id sign up btn and then instead of submit handler would be click handler okay all right i probably broke something but whatever we&#39;ll just keep going so we have in the account page we don&#39;t have any buttons in the cancel page we have cancel btn in index we have signup etn in pay we have submit payment should be called subscribe ptn um no that i mean yeah that&#39;s fine a.j s subscribe [Music] where&#39;s the button handler submit payment btn all right so and then prices did we have buttons here yeah we do but these are let&#39;s say basic btn and premium btn let&#39;s admit i&#39;ll just be like basic btn premium btn all right okay so now we should be good and then when this is clicked install button when when the cancel button is clicked we&#39;re going to say um send a post request back to the server to cancel subscription and we want to pass in the subscription id which is uh from the query string parameters again subscription id let&#39;s make sure that we have a route for that cancel pencil subscription that looks right we are calling cancel on the subscription with the subscription id okay cool that that all that all looks right um and then when it&#39;s cancelled maybe we should redirect back to the account page seems sort of seems reasonable because then we can show that the subscription is canceled on the on the account page so what does our redirect thing look like it looks like these three lines two lines and yep that&#39;s exactly it okay all right so we click cancel oh dang okay so we lost our query streaming graphs uh okay so what do we need to fix we need to fix uh no account.html oh okay is there a nice way to do this um change blank actually change began yeah [Music] uh this is like the result of doing all of our state management client side for the demo because we don&#39;t have a database all right so when we click cancel we want to just redirect to that url following our nice standard redirect stuff which is these things and so if we come back over here we click cancel now we have our query string params that&#39;s great are you sure you want to cancel pretty sure uh so we&#39;re going to click on the cancel button it enters this callback we&#39;re going to make a post request to cancel subscription we are passing a subscription id we should get back here and redirect so let&#39;s see boom we redirect back to the the account page and indeed we are cancelled nice that was quick painless there might be stuff i&#39;m forgetting there but that&#39;s that&#39;s fine all right so we have we&#39;re one ten okay let&#39;s see let&#39;s see um checking some text messages from my seven-year-old that&#39;s crazy uh sent an email at he sent an email oh no he sent me a text message from his computer this this is so wild having kids is crazy um okay so let&#39;s see what else do we want to try to achieve in this time together i was just going to check my calendar super quick to make sure that we&#39;ve got all the right stuff in the right places oh okay so i have an appointment in like 20 minutes so we are let&#39;s go work on change plan um all right so on the client we are definitely increasing the number of files here for sure but my hope is that we can explain what each of those files does and that they&#39;re nice and contained so the example is readable easily understood and you know exactly where to look for the code that does the thing that you&#39;re trying to do all right so from the account page we&#39;ve got this change plan button um should we do that or update payment method hmm which one change plan is going to take a little bit because we have to preview the upcoming invoice um so i think i might save that one for later so update payment method button i need to go to account do this same sort of thing uh and we&#39;ll call it update payment method.html okay update payment method.html and it&#39;s going to have the same html as like the cancel page basically um it&#39;s going to be called eight payment method and we&#39;ll call the javascript update payment method dot js defer it um update your payment method all right so on this page we need like a holder for a placeholder for card input actually yeah let&#39;s just add it should just be a div with the id of card element um it doesn&#39;t really matter what you name it but that&#39;s where we&#39;re gonna mount the card element um like this is where the stripe element is mounted here okay um and let&#39;s call this update button all right so when we get to the update payment method page oh what&#39;s going on here cancel buttons already been declared yep okay so this should be and this needs to be updated boom okay update your payment method cool and on the update payment method page we want we have this card element we have our javascripts that we need to add update payment method.js which is going to we need to um like step one uh fetch public key step two register elements step three um we need to uh create payment method and update customer customers yeah customer yeah uh okay so fetch the public key fetch to slash config then function resp this is going to return rest.json and then function resp and we&#39;re going to initialize an instance of stripe but stripe stripe is stripe with rest.publishable key okay we also want to register the elements here okay but this is going to be uh card element we&#39;re going to store this at the global level okay so that should register the card element and then step three is create the payment method and i guess step three is create the pain method step four uh is update the payment or update the customer all right so with step three we&#39;re going to want to grab reference to the update button and on click of the update button we want to call stripe.createpaymentmethod and we&#39;re going to pass in stuff response okay what is create paint method stripe oh actually here create payment method okay so it takes in this object that has the type the element and the billing details so we are going to say um method the type is card and the card is card element which we mounted above and we&#39;re gonna skip over billing details for now um we probably could collect uh yeah let&#39;s do it let&#39;s collect a name also uh name next actually we don&#39;t need the four so like when you&#39;re using this label style um where you&#39;re wrapping the input with the label then you don&#39;t need the for or id situation because you can the label text will be clickable and when you click on it will add focus to the input element which is inside of that label tag which is kind of nice uh let&#39;s see where we&#39;re at okay so we&#39;ve got a name here we&#39;ve got a card holder um and see okay so we&#39;ve entered that stuff oh right we wanted to go add the name into here so billing details uh name is name input value name input is name yep and then i forget what we get back what do we get back here get back a payment method yeah result.payment method has the payment method so here we&#39;re going to have risk.paymentmethod.id and that&#39;s what we want to send to update the customer uh update or i guess we already we already looked at the server right and we just made this call to update the customer and set their default payment method so let&#39;s we&#39;re going to do that again here function or not key uh set default payment method and it needs a customer id and it needs the new payment method id payment method id i think yep which is now going to be rest.payment method id right okay all right um i&#39;m going a little quickly because we&#39;re running up on time but i&#39;m hopeful you&#39;re able to follow a little bit um okay these need to be non-ace arrow functions function a function [Music] and function and let&#39;s see what we want to do after we what we want to do after we&#39;ve updated the payment method i guess we want to like redirect back right um so similar to cancel we&#39;re going to just use this same sort of like redirect back to the account page uh that seems reasonable actually i don&#39;t like all this client-side redirection but it is what it is uh okay actually let&#39;s um oh wow okay i need to think for a second because in order to comply with secure customer authentication when you&#39;re updating your payment method right here you don&#39;t actually you can&#39;t actually just create the payment method you need to use a setup intent in order to get permission to charge the card later so just creating the payment method is not enough we need to also handle secure customer authentication [Music] so let&#39;s do that so before we call set the fall payment method and instead of calling create payment method like so we actually need to create a setup intent on the server and use that and confirm that setup intent so that we can be confident that we are compliant with secure customer authentication so on the server i think this might be a flaw in the existing sample too um we need to create a setup intent yeah there&#39;s no setup intents created here so where do we want to do this all right so i i want to keep it kind of like in order of the things that we&#39;ve done so set default payment method so set default payment method and the setup intent kind of worked together so let&#39;s just use that create setup intent and here we&#39;re going to say [Music] we don&#39;t actually need any input from the customer in order to create the setup intent and i think we can just use um we can just call create setup intent right like we don&#39;t need to pass in very much confirm the customer the description i guess we could pass in the um yeah okay so we want usage off session because right now we&#39;re not going to charge the card we&#39;re going to charge the card later it&#39;s not single use nope it doesn&#39;t have a return url because we&#39;re not going to try to confirm it immediately it does not have payment method options right yep we&#39;re not doing anything moto we are not using connect we are not confirming right now so we need to set usage off session usage off session and we need to define the payment method types we want to allow mint method types actually i don&#39;t know if this is required i think it probably just actually does it default okay defaults to card i&#39;m just going to take that off um but this defaults to obsession okay so i actually don&#39;t need that either payment method we don&#39;t have yet the metadata we don&#39;t care about description we don&#39;t care about customer we could technically pass in the id of the customer uh if present set up intense payment method we attach the customer on successful setup payment methods attached to customers cannot be used with set okay that let&#39;s do that let&#39;s pass in the customer um because that will skip a step for us like um then we won&#39;t have to both attach to the customer and set it as default like by passing the customer here when we confirm the setup intent the payment method we create will be attached to the customer by default and then all we&#39;ll have to do is update invoice settings otherwise we would have to first attach the customer and then also update the payment settings so customer id um and then we&#39;re going to return with setup intent dot actually let&#39;s just pass back the client secret set up intent client secret update payment method js all right so when we land on this page um so step three so step one is fetch the public key step two is register elements step three is actually create uh setup intent or fetch a new setup intent um what do we call it create setup intent and this is going to take in the custom ready and we&#39;re getting that from params and when it comes back actually i need to change this um okay when the setup intent comes back we need to store it client secret we&#39;re going to use that in the confirm the confirm step below so here this is going to be data like client secret is equal to data client secret that&#39;s what we&#39;re gonna use to confirm the setup intent in the fourth step so step three is fetch the setup intent uh step four is like collect imminent details and confirm setup intent okay so then instead of calling create payment method here we want to call confirm card setup and the first argument is the client secret and the second argument is i think similar to this if not exactly the same so let&#39;s look in our stripe.js docs confirm card setup so confirm card setup takes in the client secret then the payment method with the card and the billing details with the card and the billing details okay um all right so then let&#39;s see so step one fetch bubble key step two register elements step three fetch the setup intent and that sets the client secret that happens on page load later once the form is submitted we&#39;re gonna call we&#39;re gonna go into this button click handler we&#39;re gonna confirm the cards the card set up with this stuff payment method card billing details okay and then the result from that is going to be a setup intent which will have a payment method somewhere buried within it i think it might be setup intent dot payment method like this we will have to see and then that is going to be sent to set the default payment method on the customer and we should be good to rock and roll so let&#39;s give it a whirl refresh the page test um i&#39;m going to test with the sca card number on purpose here you know what i think i need to restart the server because we need to have that create setup intent thing happen refresh the page best a ci test card number we click submit and we should break into this spot we do and then we pull out the name input does that have the right value it does that&#39;s test okay and then we have the we have reference to the card element right okay cool and then we should break into here play and good we get our modal to confirm sca we click complete and then we break into here and now we see rest.setup intent dot payment method cool so that&#39;s what i expected and we also have the customer id right okay cool so that&#39;s from the query string params um we&#39;re gonna send this post request to the back end to update the customers payment method and it worked i think but we also we&#39;re working with a cancelled subscription so uh not sure um stripe log tail can we see the most recent one oh all right let&#39;s just let&#39;s keep that up while we go through here so example.com i think we&#39;ll just run through this one more time and then we&#39;ll call it good okay uh we select premium let&#39;s just make sure that that 15 thing shows up [Music] for 2 card we&#39;ll start with the 4242 card and then update to the sca card later subscribe we get into here we don&#39;t need that break point let&#39;s see all right 14 usd a month good now we want to say update payment method test sca test card update and let&#39;s set space here play close to setup intends to confirm that&#39;s happening client side complete authentication this is going to happen server side um okay we updated customer and then we retrieved a subscription okay so um let&#39;s retrieve the customer and see if their default payment method on their invoice settings is the sca card which ends in five five so stripe stripe customers retrieve this customer expand the um you want to expand the invoice settings dot default payment method so we can see the details about it okay all right so we&#39;ve got our invoice settings um we&#39;ve got our default payment method here and what does it look like got some building details it&#39;s visa 3155 great so it&#39;s not the 4242 card we updated it and we used setup intents so now the next time the billing cycle runs this card should succeed um even if well okay so it should succeed we have the mandate we have like the approval from the customer we have the authentication from the customer in order to charge their card off session this new card off session later um so that&#39;s pretty sweet uh okay let&#39;s call that let&#39;s call that good for fbp method method and that&#39;s where i&#39;m gonna wrap it up folks so thanks so much for watching i hope that was useful uh and uh yeah if you have any questions or you want to just let me know what you&#39;re building or whatever you can hit me up on twitter at cjav dev uh just like the handle there uh or uh yeah on if you just want to like leave a comment on this on this movie on this episode that would be uh that&#39;d be great thank you so much for watching thank you for your attention thank you for your time i will see you next time

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