XUMM PKCE demo

This Java project demos following operations using XUMM-App:

• Sign in with XUMM using OAuth2 PKCE on a desktop software
• Send payment signing request to XUMM
• Observe/Monitor state of sent signing request

Steps to use this code

1. Create an application in Xumm Developer Console
   1. Under "Settings / Origin/Redirect URIs" enter "http://127.0.0.1:58890/auth"
2. Enter "API-Key" in Main.java (apiKey)

Hints

• Use a storage (like MemoryStorage) to store accessToken for further usage. accessToken may expire at any time.
• OAuth2PkceAuthentication.java runs temporary a HttpServer on 127.0.0.1 listening on port 58890
• Set scope variable in Main.java to your own software name

Useful documents

• Build on Xumm
• Authorization Code Flow with PKCE