Generate QR code for BRL to EUR transfer

[prayagd]

As a user, I should be able to scan the generated QR code to make BRL to EUR transfer

Acceptance criteria

• On /transfer, if all the filled input fields are correct, user should be able to confirm the transfer.
• On clicking "Confirm" button
• On /confirm
  • Show QR code
  • Below the QR code show text "Send XXX BRL to the above QR code, code valid for 10 minutes"
  • Show a "Done" button below the text
• The QR code should expire after 10 minutes

LoFi wireframes

Technical Details

• API
  • this requires a new endpoint
    • POST
    • the json body should contain all data entered by the user on this screen
    • the response is either
      • the data with the QR code
      • or some error message (e.g., the offramp provider could not process the offramp, e.g., due to KYC issues)
• Backend
  • the implementation of the endpoint should submit the relevant data to the offramp provider (this needs to be a placeholder for now)
  • this will return some kind of id or an error
    • in case of an error return an appropriate error message or error code that can be interpreted by the UI (this needs to be a placeholder for now as it depends on the concrete offramp provider)
  • use the QR code API and submit the id and the relevant data of the user (see here for the necessary data)
  • return the QR code to the frontend
• For more details refer this

[prayagd]

Code validity is assumed for 10 minutes

We don't need to assume this, we can explicitly specify the timeout when creating the QR code

@TorstenStueber Can you help specify what should the timeout be or is this a Product decision to be made?

[prayagd]

Hey team! Please add your planning poker estimate with Zenhub @b-yap @bogdanS98 @ebma @gianfra-t @TorstenStueber

[prayagd]

this is a follow up ticket of #7

[TorstenStueber]

@prayagd this should not be on the same route /transfer but already a different route. Different routes for every new logical step so that the user can just click the back button and the UI behaves as expected.

Here also some internal technical details for how to generate the QR code, this should of course happen in the backend, so that we need to introduce at least one new endpoint in the backend for this generation.

[ebma]

Since we unified the frontend and backend into this repository, I outcome of this ticket is the frontend as well as the backend logic for the QR code? If so I need to change my planning poker estimate.

[TorstenStueber]

Yes, I would say so. Typical cross cutting user story.

[TorstenStueber]

@prayagd we should move this to icebox.

[TorstenStueber]

This ticket is meant for an obsolete prototype. Closed.