--- title: Accept a payment - Create a PaymentIntent with Java slug: accept-a-payment-create-a-paymentintent-with-java published_at: 2021-04-27 17:15:00 +0000 updated_at: 2023-01-30 22:53:38 +0000 summary: description: Accepting a one-time payment with a custom form requires two steps. First, creating a PaymentIntent on the server. Second, confirming the payment intent on the client. It's also recommended that you handle fulfillment for a purchase when receiving a webhook notification of successful payment. In this video, you'll learn how to create a PaymentIntent on the server using Java and how to setup a basic Webhook handler. For part two of this series to confirm a PaymentIntent using a variety of payment methods, watch one of the videos in the playlists for front end frameworks: HTML and JavaScript - https://www.youtube.com/playlist?list=PLy1nL-pvL2M7EUdqARPiayuj5cjGMLCvM React - https://www.youtube.com/playlist?list=PLy1nL-pvL2M6HFApWUDSGA4Y7btyKx7cE iOS - https://www.youtube.com/playlist?list=PLy1nL-pvL2M6yD1D72ceqqrW_1BqyN4It Android - https://www.youtube.com/playlist?list=PLy1nL-pvL2M4IvDG-DOFKi_UCEgQkHu3n If you'd like to learn how to create a PaymentIntent on the server in another server side language, consider watching one of these episodes: Ruby - https://www.youtube.com/watch?v=079khYtqWPo&list=PLy1nL-pvL2M50RmP6ie-gdcSnfOuQCRYk&index=12 Python - https://www.youtube.com/watch?v=Tgjwx-38Dic&list=PLy1nL-pvL2M55YVn0mGoQ5r-39A1-ZypO&index=11 PHP - https://youtu.be/BPfpPGl85tk Node.js - https://www.youtube.com/watch?v=WG4ehXSEpz4&list=PLy1nL-pvL2M5xNIuNapwmABwEy2uifAlY&index=11 Java - https://www.youtube.com/watch?v=-uyXCnPXegE&list=PLy1nL-pvL2M5TnSGVjEHTTMgdnnHi-KPg&index=11 Go - https://www.youtube.com/watch?v=cbsCxLDL4EY&list=PLy1nL-pvL2M5eqpSBR9KL7K0lcnWo0V0a&index=12 .NET - https://www.youtube.com/watch?v=mqEjRgoZWdo&list=PLy1nL-pvL2M4cNNoUtjWevYSci4ubsbhC&index=11 ### Resources Code: https://github.com/stripe-samples/accept-a-payment/tree/main/custom-payment-flow Documentation: https://stripe.com/docs/payments/payment-intents How intents work: https://stripe.com/docs/payments/intents Playlist: https://www.youtube.com/playlist?list=PLy1nL-pvL2M5eqpSBR9KL7K0lcnWo0V0a ### Table of contents 00:00 Overview 01:11 Setup the office hours sample 01:45 Add route to create-payment-intent 02:12 Create a basic PaymentIntent using the API with stripe-go 02:45 Test the endpoint with cURL 03:12 Accept payment method type and currency in request 04:57 Handle errors 05:48 Handle webhook notifications 08:23 Add a config route for fetching publishable keys 09:00 Recap and conclusion ### Presenter CJ Avilla, Developer Advocate at Stripe - https://twitter.com/cjav_dev ### 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 tags: [stripe, payments, Accept a payment - Create a PaymentIntent with Java, Java, payment, payment intent, create a payment, create a payment intent, PaymentIntent, @cjav_dev] views: 6222 author: CJ Avilla url: https://www.cjav.dev/videos/accept-a-payment-create-a-paymentintent-with-java youtube_url: https://www.youtube.com/watch?v=-uyXCnPXegE youtube_id: -uyXCnPXegE embed_url: https://www.youtube.com/embed/-uyXCnPXegE thumbnail_url: https://i.ytimg.com/vi/-uyXCnPXegE/hqdefault.jpg type: video --- # Accept a payment - Create a PaymentIntent with Java *Published: April 27, 2021* *Views: 6222* ## Watch [Watch on YouTube](https://www.youtube.com/watch?v=-uyXCnPXegE) [![Accept a payment - Create a PaymentIntent with Java](https://i.ytimg.com/vi/-uyXCnPXegE/hqdefault.jpg)](https://www.youtube.com/watch?v=-uyXCnPXegE) ## Description Accepting a one-time payment with a custom form requires two steps. First, creating a PaymentIntent on the server. Second, confirming the payment intent on the client. It's also recommended that you handle fulfillment for a purchase when receiving a webhook notification of successful payment. In this video, you'll learn how to create a PaymentIntent on the server using Java and how to setup a basic Webhook handler. For part two of this series to confirm a PaymentIntent using a variety of payment methods, watch one of the videos in the playlists for front end frameworks: HTML and JavaScript - https://www.youtube.com/playlist?list=PLy1nL-pvL2M7EUdqARPiayuj5cjGMLCvM React - https://www.youtube.com/playlist?list=PLy1nL-pvL2M6HFApWUDSGA4Y7btyKx7cE iOS - https://www.youtube.com/playlist?list=PLy1nL-pvL2M6yD1D72ceqqrW_1BqyN4It Android - https://www.youtube.com/playlist?list=PLy1nL-pvL2M4IvDG-DOFKi_UCEgQkHu3n If you'd like to learn how to create a PaymentIntent on the server in another server side language, consider watching one of these episodes: Ruby - https://www.youtube.com/watch?v=079khYtqWPo&list=PLy1nL-pvL2M50RmP6ie-gdcSnfOuQCRYk&index=12 Python - https://www.youtube.com/watch?v=Tgjwx-38Dic&list=PLy1nL-pvL2M55YVn0mGoQ5r-39A1-ZypO&index=11 PHP - https://youtu.be/BPfpPGl85tk Node.js - https://www.youtube.com/watch?v=WG4ehXSEpz4&list=PLy1nL-pvL2M5xNIuNapwmABwEy2uifAlY&index=11 Java - https://www.youtube.com/watch?v=-uyXCnPXegE&list=PLy1nL-pvL2M5TnSGVjEHTTMgdnnHi-KPg&index=11 Go - https://www.youtube.com/watch?v=cbsCxLDL4EY&list=PLy1nL-pvL2M5eqpSBR9KL7K0lcnWo0V0a&index=12 .NET - https://www.youtube.com/watch?v=mqEjRgoZWdo&list=PLy1nL-pvL2M4cNNoUtjWevYSci4ubsbhC&index=11 ### Resources Code: https://github.com/stripe-samples/accept-a-payment/tree/main/custom-payment-flow Documentation: https://stripe.com/docs/payments/payment-intents How intents work: https://stripe.com/docs/payments/intents Playlist: https://www.youtube.com/playlist?list=PLy1nL-pvL2M5eqpSBR9KL7K0lcnWo0V0a ### Table of contents 00:00 Overview 01:11 Setup the office hours sample 01:45 Add route to create-payment-intent 02:12 Create a basic PaymentIntent using the API with stripe-go 02:45 Test the endpoint with cURL 03:12 Accept payment method type and currency in request 04:57 Handle errors 05:48 Handle webhook notifications 08:23 Add a config route for fetching publishable keys 09:00 Recap and conclusion ### Presenter CJ Avilla, Developer Advocate at Stripe - https://twitter.com/cjav_dev ### 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 ## Transcript in this episode we cover the basic server-side implementation for accepting a one-time payment with a custom form if you're interested in a faster integration path using stripe hosted checkout head over to the checkout playlist in the stripe developers channel the payment flow you'll see today for collecting a one-time payment has two steps first creating the payment intent on the server and second confirming the payment on the client using the client secret for the payment intent so in this episode you'll learn how to add an endpoint to your server to create the payment intent then whether you're using stripe.js or react on the web or stripe ios or stripe android on mobile you can watch videos for those specific front end implementations that will pair with the code we implement here so rather than start from scratch we're going to jump start our server implementation using the developer office hours base sample now if you want to see how we go from zero to one check out the starter episode linked in the description you might also be interested in an episode about working with the stripe cli a handy tool for helping you build and test your stripe integration so from the terminal we're going to run stripe samples create developer office hours and we'll give this one an alias of tutorial now we can pick java and that'll download and scaffold a bare bones project with a simple server and client html file for us but in this episode we're going to spend all of our time in the server directory and then in future episodes we'll implement the front end to confirm so let's change into that server directory and open up server.java so it already contains a route for serving static html pages and a skeleton for the webhook endpoint now at a minimum we need one new server endpoint to create the payment intent that will later confirm on the front end this route will accept post requests as by convention we're creating a new resource we're creating a payment intent we'll stick with the same naming convention as the stripe docs and name our route create payment intent now the logic in this route is very simple we'll create a payment intent using stripe java's client library to make an api request to stripe initially we'll hard code and pass just the minimum required arguments so amount and currency and this amount value is denoted in the smallest possible denomination for a given currency so in this case sense and this params class comes from the com.stripe.param namespace in stripe java so we'll go import that next we'll make the api call to stripe and this could raise an exception so we'll need to wrap in a try catch so for now if there's an exception we'll print it to the console and return an empty string and we'll come back to this and clean it up in a bit now rather than return the json for the entire payment intent we actually just want to return some json with only the client secret property of the newly created payment intent we can either create a static class and build a response object and serialize but since this is such a small one property json object we can just create a hash map and then render that back with json all right let's jump into another terminal instance so we can package and start the server with mvn package and we're going to call java passing it the class path to this this jar file that has all the dependencies built in and the the class path to our our entry point of server next we'll experiment with the endpoint using curl to make a direct request to the payment intent endpoint this is going to be a post request to localhost 4242 with just an empty json object in the request body notice this response is well-formed json and includes the client secret for the newly created payment intent returning to our code let's talk about this api call for creating a payment intent so it turns out there's more than two dozen optional parameters available for tailoring the payment experience for your customers one of those optional parameters is payment method types which takes a list of string values for the payment method options you'd like to allow your customers to pay with now by default this is set to an array with just one argument and that's card making this payment intent only confirmable with the card payment method now in practice you could hard code a list of string values or keep calling add payment method type to add all the payment method types you want to accept here now in this series you're going to learn how to accept a wide variety of payment method types so let's refactor our endpoint to accept some arguments by deserializing the json in the request body so we'll create a static class that we're going to deserialize that request data into and we'll extract an argument for the payment method type and furthermore some payment method types only work with specific currencies so let's allow the currency to be passed from the client as well cool so we'll head back over to the terminal restart our server and update our curl request to pass in the payment method type in the currency in the request body great now that works but if we were to try to pass aubex debit as our payment method type and keep usd as the currency note that this fails in this case we see in the server log an error message explaining that au bex debit only works with australian dollars we didn't really get a good error response so in the future we're going to want to surface those failures in a nice format so that our front end can consistently parse and present errors to customers so let's render an error response with well-formed json in a failure case so we can import stripe exception from com.stripe.exception and then add a cache for stripe exception and render a user-friendly message like so in the case of a just generic exception we'll render back and we'll just sort of like convert that error or that exception into the string value and we'll keep that the shape of the response the same so this matches the shape returned directly from the stripe api for client-side calls so it'll make implementing our error handling logic on the clients just a little bit easier to reason about now after restarting our server and attempting to create a payment intent with an invalid combo of payment method type and currency we now see a well-formed json error response now most payment method types complete payment asynchronously for some payments completed nearly instantly like cards but for others payment can take a few days or even more to complete and due to the asynchronous nature of the way that money flows through networks we highly recommend implementing webhooks to automate fulfillment we have episodes all about how to set up your webhook handler so let's update this webhook endpoint to simply print to the server log when payment intent events fire it's quite common to automate things like email notifications updating your database pulling from inventory printing shipping labels and more as part of this webhook handler also worth noting that you could use a third-party tool like zapier or ift as a low or no code solution for handling web hook notifications for now we'll simply check to see if the event type is one of paymentintent.created and print a simple status update from the terminal we'll restart our server and then test our new webhook logic with the stripe cli using the listen command stripe listen forms a direct connection from stripe to this locally running server so that when events happen on the demo stripe account they're delivered to the development environment without needing any tunneling software like ngrok the stripe listen command accepts a url to which events should be forwarded now if we successfully create a new payment intent with ideal and euros we see in the server log that the payment intent was created and we can see in the logs for stripe listen that the payment intent created event fired let's improve our lock statement to include the ids of the event and the payment intent and the status of the payment intent we'll restart the server and fire another test to confirm our improved log statement now we see the id of the event the id of the payment intent and the status of the payment intent note that the payment intent was not created with a specific payment method so its statuses requires payment method we're going to assign a new payment method when confirming the payment on the front end again covered in a future episode all right so at this point the server is technically ready to add a front end however we'll add one last simple route for fetching a publishable key so that we don't need to hard code that on the front end this simple helper is purely for serving our publishable keys when receiving a get request to slash config this is the best practice when working with mobile clients so that if for some reason you need to roll your api keys the publishable key is not hardcoded into the production mobile apps shipped to users that would require that all mobile users install an updated version of the app just to get the new key so as a quick recap we added a new endpoint to create payment intents we the api call to create a payment intent passes the amount currency and the type of payment method we want to allow we also added some logging to the webhook handler for debugging and look into the future when implementing application logic to automate fulfillment and finally we added a quick helper route for returning the publishable key so that we don't have to hard code that in mobile clients next we recommend heading over to one of the playlists that most closely fits your front-end implementation you can sort of pick and choose between different payment method types and you can use the links in the description or head over to the stripe developers channel and take a look at those playlists thanks for watching and we'll see you in the next one [Music] --- [Back to all videos](https://www.cjav.dev/videos) --- ## Hey Agent, thanks for visiting! 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