---
title: Accept a payment with the Payment Element using Python
slug: accept-a-payment-with-the-payment-element-using-python
published_at: 2022-11-28 13:00:37 +0000
updated_at: 2023-01-30 22:51:54 +0000
summary: 
description: In this episode, you'll learn how to accept a one-time payment with a custom form using Python on the server and the Stripe Payment Element on the client. The Payment Element enables you to collect several different payment method types from cards and bank accounts to wallets and buy-now-pay-later payment methods.    ### Presenter CJ Avilla - Developer Advocate at Stripe - https://twitter.com/cjav_dev  ### Chapters 00:00 Introduction 01:37 Install a sample with the Stripe CLI 03:57 Enable payment methods in the dashboard 05:02 Overview of payment flow 05:31 Create payment intent on the server 07:58 Collect payment details on the client 12:06 Submit payment details to Stripe 14:53 Build a confirmation page 17:25 Handle webhooks and post-processing events 20:43 Test your integration with Stripe test cards 22:01 Conclusion  ### Resources Accept a payment - https://stripe.com/docs/payments/accept-a-payment?platform=web&ui=elements&lang=python PaymentIntent API reference - https://stripe.com/docs/api/payment_intents/create?lang=python Learn all about webhooks - https://stripe.com/docs/videos/developer-foundations?video=webhook-helpers&lang=python   ### Support If you have a question, please feel free to reach out to our support team on Discord at https://stripe.com/go/developer-chat   ### Updates Sign up to stay updated with developer news: https://go.stripe.global/dev-digest  ### Feedback If you have any feedback about this or other episodes, let us know: https://forms.gle/VjNqzRhotM2snYo88  #stripe #payments #python #pythonprogramming   #stripe #payments #python #pythonprogramming
tags: [stripe, payments, ecommerce, stripedev, @cjav_dev, cjav_dev, accept a payment with Payment Element in Python, Accept a payment with Python, Python payments, accept payments with python, how to process payment with python, python app that takes payment, stripe python, stripe-python, stripe.py, py, py payment, py payments]
views: 523
author: CJ Avilla
url: https://www.cjav.dev/videos/accept-a-payment-with-the-payment-element-using-python
youtube_url: https://www.youtube.com/watch?v=tCSbCk5j3Tk
youtube_id: tCSbCk5j3Tk
embed_url: https://www.youtube.com/embed/tCSbCk5j3Tk
thumbnail_url: https://i.ytimg.com/vi/tCSbCk5j3Tk/hqdefault.jpg
type: video
---

# Accept a payment with the Payment Element using Python

*Published: November 28, 2022*
*Views: 523*

## Watch

[Watch on YouTube](https://www.youtube.com/watch?v=tCSbCk5j3Tk)

[![Accept a payment with the Payment Element using Python](https://i.ytimg.com/vi/tCSbCk5j3Tk/hqdefault.jpg)](https://www.youtube.com/watch?v=tCSbCk5j3Tk)

## Description

In this episode, you'll learn how to accept a one-time payment with a custom form using Python on the server and the Stripe Payment Element on the client. The Payment Element enables you to collect several different payment method types from cards and bank accounts to wallets and buy-now-pay-later payment methods. 


### Presenter
CJ Avilla - Developer Advocate at Stripe - https://twitter.com/cjav_dev

### Chapters
00:00 Introduction
01:37 Install a sample with the Stripe CLI
03:57 Enable payment methods in the dashboard
05:02 Overview of payment flow
05:31 Create payment intent on the server
07:58 Collect payment details on the client
12:06 Submit payment details to Stripe
14:53 Build a confirmation page
17:25 Handle webhooks and post-processing events
20:43 Test your integration with Stripe test cards
22:01 Conclusion

### Resources
Accept a payment - https://stripe.com/docs/payments/accept-a-payment?platform=web&ui=elements&lang=python
PaymentIntent API reference - https://stripe.com/docs/api/payment_intents/create?lang=python
Learn all about webhooks - https://stripe.com/docs/videos/developer-foundations?video=webhook-helpers&lang=python


### Support
If you have a question, please feel free to reach out to our support team on Discord at https://stripe.com/go/developer-chat
 
### Updates
Sign up to stay updated with developer news: https://go.stripe.global/dev-digest

### Feedback
If you have any feedback about this or other episodes, let us know: https://forms.gle/VjNqzRhotM2snYo88

#stripe #payments #python #pythonprogramming 

#stripe #payments #python #pythonprogramming

## Transcript

welcome back in this episode you're going to learn how to accept a one-time payment using a custom form with the payment element if you're looking for a simpler integration path we have the no code payment links option where you can set up a payment link directly through the dashboard and then share that with your customers through social media email text message Etc alternatively there's another option called stripe checkout this is a a very simple integration that has one API call on the server you redirect your customer to a stripe hosted page but in today's episode we're going to talk about integrating the payment element this allows you to build your own custom hosted form and collect lots of different payment method types so the payment element supports anything from cards all the way to bank accounts you've got support for wallets like Google pay and Apple pay all the way to buy now pay later like a firm and after pay clear pay so it is a great option for building your own custom form to accept a one-time payment so just as a quick roadmap for today we're going to install a sample there then we're going to go through the dashboard and talk about how you can enable payment methods these are going to be those payment methods that are dynamically rendered into the payment element every time the page loads and then we're going to create a payment intent on the server and use its client secret to render the payment element on the client so that we can collect payment details from the customer it will ultimately submit that payment to stripe and we're going to handle any of those post-processing events we're going to talk about web Hooks and a few other considerations that you might want to think about as you're building out your integration so let's get into it [Music] we're going to jump into Visual Studio code and use the stripe for vs code extension you can go to the extensions gallery for vs code and install this extension yourself and what we're going to do is we're going to use this start with a stripe sample today so that we don't have to write all the boilerplate and we're going to search for the starter sample we're going to use the main integration and an HTML front end with a python backend we'll name this starter Python and this is going to just allow us to clone a sample down into our local machine and we'll use this as a template for what we're going to build today so we're going to open this in the same exact window so let's take a quick look at what comes when we install this starter we have a client directory and a server directory in the client there is a simple index.html file and a little bit of CSS in the server directory we have a DOT end this is going to have our API keys if you've already logged in with the stripe CLI this should be pre-populated with some API keys from your account if not you can head over to the stripe dashboard under the developers section you can grab your API keys and drop those here in a DOT end and finally we're going to take a look at this server file so in the server we are installing a couple of dependencies we have a couple of routes that are already predefined for us one for fetching the root and that's going to render that index.html page from the client directory we also have this slash config for fetching publishable keys and we're going to re-implement this create payment intent route so that we can talk about how we're going to go about creating payment intents and finally there is a skeleton here for a web hook Handler that allow you to start experimenting with automations around different events that are firing on your stripe account so the first thing we want to do is open up the terminal here and we're going to create a new virtual environment so we're going to say Python 3 Dash M venve then and we're going to just activate this then been activate then from the server directory I'm going to pip install Dash R the requirements.txt this is going to install the dependencies now I can say uh python server and fire up this server and we can take a look at what we've already got out of the box so we'll refresh localhost colon 4242 and this is the base sample so let's get into it now from the stripe dashboard we can head over to the settings and to the payment method settings this is where we can manage our payment methods and enable or disable different ways that customers can pay through our payment element so you'll see here that we have cards enabled link Apple pay Google pay several different wallet methods there's lots of different bank redirects these are popular across Europe we also have some buy now pay later payment methods that are enabled finally we even have ACH direct debit as one of the payment methods that customers could use now if we wanted to enable Canadian pre-authorized debits we could click turn on and this would enable us to use Canadian pre-authorized debits as a payment method type inside of our payment flows so this is where we manage our payment methods and these are the payment methods that will be dynamically derived inside of our payment element when we render that and show it to customers so that's how you enable and manage your payment methods instead of needing to deploy any new code you can just come into the dash dashboard and enable or disable different payment method types here's a high level overview of what we'll Implement today when the customer lands on our page we're going to make an Ajax request back to our server and that might include any information about the product that they're about to purchase or the service that they're about to buy and on the server we're going to make an API call to stripe to create a payment intent then we're going to return that payment intense client secret back to the client so that we can render the payment element let's get into this step here where we're going to make the API call to stripe to create the payment intent and return its client secret back let's create a new route on the server app dot route and this is going to be to create payment intent and the methods we're going to support are post and we'll just call this method create payment intent now if we're using the strifer vs code extension we can say stripe payment intent create and hit Tab and this will auto complete the API call that we need to use when we're creating this payment intent now the amount here is going to be in the smallest denomination of the currency so in this case if we're talking about USD this is twenty dollars so two thousand cents so let's actually make this 10.99 now you could technically derive this amount based on something that was passed in you don't want to pass the amount from the front end and use that here instead what you could do is pass down some product ID and then maybe you like look up the product in the database and calculate the amount but you don't want to actually pass this in from the front end because that would enable end users or potentially malicious users to modify the HTML to their own custom amount and pass that down here you can specify different currencies here we we might change this to euros and instead of hard coding a list of payment method types here we can pass automatic payment methods enabled true and this will allow us to derive those payment methods from the stripe dashboard now this API call is going to return a payment intent and we want to use that payment intents client Secret in our response we're going to return jsonify of client secret is going to be payment intent.client Secret okay let's see if this is working so we'll make sure that we restart our server and let's create a new shell here where we're going to test out that endpoint by saying curl Dash X post to localhost 4242 create payment content now you could use a tool like Postman or insomnia or some other rest client to experiment with this new server endpoint here we're just using curl to send a a raw post request to that endpoint and we get back the Json totally as expected so this is what a client secret looks like this is what we need to pass back to the front end in order to render that payment element so let's do that next so let's open up index.html and take a look at the sample that we have already so we're going to change this to accept a payment we need to add a form where we're going to collect payment details we'll call this the payment form and inside of here we're going to add a div and that div is going to be the container for the payment element we're also going to add a button and this button is just going to say pay and finally we'll also add another div here for displaying any error messages okay so this is a good start we also want to write a little bit of JavaScript that is going to handle mounting the payment element and displaying that payment element notice that we are loading stripe.js from js.stripe.com here on every single page we're going to also add another script tag here that's going to allow us to load payment.js so that we can write a little bit of JavaScript for interacting with our our form today so let's make a new file we're going to save this as payment.js in the client directory now when the Dom is fully loaded we're going to fetch the publishable key and initialize stripe then we're going to fetch the client Secret and initialize elements okay so we're going to use the fetch API here to hit that slash config route that's going to return a promise that will resolve with a response object and that response object has a Json method on it that we want to call and again we're going to wait for that to give us back the Json that was returned from the server that'll allow us to have this publishable key that we need to initialize stripes we can say stripe is going to be this new instance of stripe and we're going to pass in the uh that publishable key okay now we need to fetch the client secret so we're going to again use the fetch API but this time we're going to call create payment intent that's the end point and because it's a post request we need to pass this options block to fetch so that we can specify the method as post and maybe some headers and these headers might have a content type of application Json and this is also where you might pass back a request body that would include information like the product or the cart or some information that you can use on the server to derive the amount that you want to ultimately charge this is again going to return a object a response object so we're going to wait for that to come back and then we're going to wait for its Json and this will also return a promise that we're going to wait for and grab off that client secret property that we're going to use to initialize elements so we're going to say const elements is stripe.elements and typically in Old older stripe Integrations you would just call striped out elements like this and it would give you back an elements group that you could then use to render a card element or a single element for collecting bank account details but what we're going to do today is we're actually going to pass in an argument to elements here for the client Secret that client secret property is going to be used to derive which payment methods should be displayed on the payment element so now we're going to create a payment element by saying elements.create payment and then we can say payment element.mount and we're going to pass in the CSS selector for that div that we created in index.html so this payment element CSS selector matches the CSS selector that we're passing in to mount all right let's take this for a spin and when we refresh our page here we can see that the payment element is rendered out notice that if we go back to the server and we change the currency from euros to USD and save that when we refresh the page the payment methods that are available change to those that are that support USD so now we can pay with a U.S bank account or clarna next we need to submit these payment details to stripe so we're going to grab reference to the form by saying document dot get element by ID for the payment form and on submission of that form we're going to prevent the default action from the event that was given to us so that the form is not submitted so that we can handle some of this client side then we're going to call a method from stripe.js called striped.confirmpayment now this this new method accepts in an options block one of the required arguments is the elements group so we're going to pass in reference to that elements group that we used earlier another is some confirm params and at a minimum this is going to require a return URL this is where the customer is going to be redirected after they go through this payment flow so here we can just say window.location.href dot split we'll split on the question mark in case there's a query string and we'll grab the first reference of that we're just going to add complete.html to the end we're going to add a new page for that completion in just a minute so this confirm payment method is going to actually return a promise and that promise might resolve with an error property that's in case something failed as part of trying to submit those details to stripe if that happens we want to handle the error and populate that error messages div with the content of the error message so we're going to say messages is document.getelementbyid error messages dot inner text is going to be error.message typically this confirmed payment is actually going to redirect us back to this complete route if you don't want to redirect there are options that you can pass in so that it will only redirect for payment methods that require redirection otherwise it's this is the default action is it's going to redirect to this complete page after it successfully collects payment each payment method is going to behave just a little bit differently so you'll want to go through and test each one of them and we'll talk about how to test in a little bit okay now that we are handling the form submission we can go through this process once more refresh the page enter in a test card this is the 4242 test card very popular card and we're going to click on pay you'll notice that we are redirected to a new route complete.html that's not found but you one thing that I wanted to point out is that in the query string param we have the ID of the payment intent and we also have the client secret property for the payment intent that we can use to re-retrieve the payment intent and display content about what was just purchased on this completion page all right let's create complete.html so we're going to create a new file here called complete.html and this is going to look somewhat similar to our index.html so I'm just going to grab a lot of that context there and then we'll just close out some of these divs and we'll close out the body and we'll close out the HTML and we should be looking pretty good here okay instead of payment.js we're going to call this complete.js and we're also going to create a new one of those so we're going to call this complete.js again we want to wait till the Dom is loaded and when the Dom is loaded we're again going to fetch the publishable key and initialize an instance of stripe now let's extract that payment intent client secret from the query string params we're going to create a new URL search params object and pass in window dot location Dot href and we're going to be able to pull out the client secret from params.getpayment intent client Secret now we can use that client secret to re-retrieve the payment intent so on stripe.js there is a method called retrieve payment intent and it takes in that client secret property this will return a uh a promise that will resolve with an object that might have a payment intent on it all right let's render out the content of this payment attempt we're just going to render its Json into a pre-tag so let's drop a pre-tag into the HTML and then we're going to grab reference to that pre-tag here so we'll say payment intent pre is document.getelementbyid payment intent and then we're going to say payment intent pre-tag dot inner text is going to be equal to Json dot stringify of the payment intent and we'll pass null 2 just so that it looks nice so if we refresh the page here this is the Json content for the payment intent so you could imagine displaying the amount that was charged and the status of that payment if you wanted you could also expand the payment method and show some details about maybe the last four digits of the card that was used Etc so this is how we might build a completion or a success page letting the customer know that they have gone through the payment flow successfully one important thing to note is you don't want to use this completion page like the request for loading the completion page as the signal for fulfillment you don't want to actually like pull up pull from inventory or ship Things based on this page loading instead you should use a web hook Handler that's because there's several different reasons that this page might not actually load for instance the customer's internet might go out or there's uh you know the machine might crash or whatever so there's a possibility this page might not load but payment will be successful in which case you want to handle all fulfillment with your web hook Handler so let's jump back into server.pi and talk about this for a moment so web hooks are much more reliable because if web hooks are down for any reason stripe is going to retry delivery of those web hooks for up to three days with exponential back off so let's talk about this web hook Handler right we are going to receive post requests directly from stripe when events fire on our account another handy tool for the stripe for vs code extension is testing and building these Integrations with web hooks so we have this ability to forward events to a specific URL so we can pick a localhost 4242 webhook as the account event URL account events are those events that are firing directly on your stripe account there's another URL so if we hit enter here this is the URL for connect event so if you're building a connect platform where you're facilitating payments on behalf of other users or other Merchants then you would also want to enter a connect endpoint potentially a different web hook endpoint so we're going to hit enter we're not actually using connect today and now we are going to see some terminal output at the bottom and that will include a web hook signing secret that we could use to verify that payloads are actually coming from stripe now that we're forwarding events anytime events fire on our stripe account those are going to be delivered directly to our local running server we don't have to set up any tunneling software like ngrok we don't have to host this in any public endpoint by using the stripe CLI and the striper vs code extension to forward events we're able to have those events delivered directly to our machine let me show you what I'm talking about if we navigate back to localhost 4242 when we load the page recall that we're making that request to create a payment intent and now we can see this event in our logs that a payment intent was created and we have a 200 status code as the response from our web hook Handler so as events come in we'll want to handle several different types the one that we're handling right now is payment intent dot succeeded you might have a payment intent that is pending or a payment intent where payment fails you'll want to make sure that you're handling all those different scenarios right now we're just printing out that we received payments so if we were to go back through this payment flow one more time and click on pay we'll see that the event is delivered to our web hook Handler so we see this payment intent succeeded and if we look at the server logs we'll see this payment received log that was printed out into the console so this is how we're going to handle web hook events now in production you will not use the stripe CLI or the strip for vs code extension to forward those events instead you'll have a publicly accessible URL for your web hook Handler and you can go and drop that into the stripe dashboard and that's going to give you back a web hook signing secret and each webhook endpoint is going to have its own web hook signing Secret you might be wondering how to test out your integration well over in the documentation for accepting a payment you can drill down into the test integration section and for each of the different payment method families between cards wallets Bank redirects Etc there are several different things that will allow you to test different scenarios so for instance we can grab this card this test card that ends in 3155 and we can use that as one of our test cards inside of the payment element and you'll notice that as we go through the payment flow here this will trigger a secure customer authentication payment flow so this is going to pop up a modal and in production this model would contain a bank account 2fa or sort of like a one-time code or some way to verify that the customer is who they say they are and that they are allowed to authenticate this payment so that's one way that you can test sort of 3D secure and secure customer authentication is with that special card number another thing worth noting is in the documentation there are some optional steps depending on specific payment method types or QR code based payment methods these might require that you pass additional details when creating the payment intent or they might have other considerations like with Apple pay you'll need to go into the dashboard and make sure that you have an Apple pay domain set up and verified so just to review the entire flow the customer lands on the page and we use any information from that page to create a payment intent using the API and then when we return that payment intents client secret to the client we use that to build out a payment element on our custom form that's where customers enter their billing details and then we can submit that payment directly to stripe client side and then the customer is redirected to a return URL where we display this return status or this success status completion status and finally we're handling fulfillment with our web hook that's where we're actually pulling from inventory and printing shipping labels and doing all those things that we might do when someone buys something from us thank you so much for watching and we'll see in the next one

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