Adyen for Platforms (AfP) Sample Application

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Intro

Adyen for Platforms is an end-to-end payment solution for peer-to-peer marketplaces, on-demand services, crowdfunding platforms, and any other platform business models.

This application is a simplified version of a platform that utilises AfP, showcasing the following use cases:

• Signup and start Hosted Onboarding
• Login and resume Hosted Onboarding
• View transactions

The frontend is implemented in React, the backend is in Java (Spring Boot) integrating the Adyen Java library (GitHub | Documentation).

Prerequisites

• Java 17
• Maven 3

1. Installation

git clone https://github.com/adyen-examples/adyen-afp-sample.git

2. Set the environment variables

• BCL API key: API key for accessing Balance Platform Configuration API
• LEM API key: API key for accessing Legal Entity Management API
• HMAC key: HMAC key to validate incoming webhook requests

On Linux/Mac/Windows export/set the environment variables.

export ADYEN_BCL_API_KEY=yourBclApiKey
export ADYEN_LEM_API_KEY=yourLemApiKey
export ADYEN_HMAC_KEY=yourHmacKey

Alternatively, define the variables in the config/application.properties.

ADYEN_BCL_API_KEY=yourBclApiKey
ADYEN_LEM_API_KEY=yourLemApiKey
ADYEN_HMAC_KEY=yourHmacKey

3. Run the application

You can run the sample application in 2 ways:

• run React and Java separately
• build and run the application JAR file

Run React and Java

Run separately frontend and backend:

cd react-app
npm start

mvn spring-boot:run

Access http://localhost:3000/

Build the application

Run the Spring Boot application, packaging the frontend and all assets together:

mvn spring-boot:run -Dskip.frontend.build=false

Access http://localhost:8080/

Webhooks

Webhooks deliver asynchronous notifications about the onboarding status and other events that are important to receive and process.
Check out how to setup a webhook and learn tips and best practises in this blog post.

Webhook setup

In the Balance Platform Customer Area in the Developers → Webhooks section, create a new Configuration webhook.

A good practice is to set up basic authentication, copy the generated HMAC Key and store it as an environment variable. The application will use this to ensure the integrity of the incoming webhook requests.

Make sure the webhook is enabled, so it can receive notifications.

Expose an endpoint

This demo provides a simple webhook implementation (WebhookController class) that processes the requests sent to /api/webhooks/notifications and demonstrates how to receive, validate and consume the webhook payload.

Test your webhook

To make sure that the Adyen platform can reach your application, we have written a Webhooks Testing Guide that explores several options on how you can easily achieve this (e.g. running on localhost or cloud).