Creating uPort Connect in any stack

To create uport connect functionality in any stack, you need the following building blocks:

1. JWT library, wrapped for DID functionality with support for EC DSA signatures on the secp256k1 curve [Example JS implementation].(https://github.com/uport-project/did-jwt)
2. A way to resolve DID JWTs
   1. android SDK resolver
   2. W3 DID Resolver spec
3. A way to Sign JWT's using the secp256k1 curve.
4. Poll chasqui for updates
   1. dApp generates a random topic id randomIdDapp (ie: 1234-5678-9082)
   2. dApp presents the user a QR with callback: /message/{randomId}
   3. dApp subscribes to topic randomId, waits for address field.
   4. uPort Mobile app generates a random topic id (ie: 9923-1234-3234)
   5. uPort Mobile app subscribes to topic randomIdMobile
   6. uPort Mobile app scans URL from QR code
   7. uPort do a POST to the URL /message/{randomIdDapp} (callback scanned URL) with "address": "
      " and "callback": "<randomIdMobile"> as body parameter
   8. dApp app gets the address and the callback for the mobile app, and deletes the topic from the messaging server with DELETE /topic/{randomId}
   9. 
5. Use pututu if you want to send push notifications to the uPort mobile user.

References

• DID Spec
• A way to sign (android)
• Android SDK, reference implementation