QR code for peering

[benhylau]

We have a standardized format to request for peering and distribute credentials. It's work-in-progress, but they will look something like this.

Peering Request

scheme://host/?type=peer&interface=udp&link=overlay&pk=wrbtPk&metadata=metadataOfAlice&cjdnsVersion=X&wrbtVersion=Y

Credentials

scheme://host/?type=credentials&interface=udp&link=overlay&pk=wrbtPk&message=encodedMessage&cjdnsVersion=X&wrbtVersion=Y

This text should be sent through one of the following methods.

All of them are easy to do, except QR code requires more work. Probably use zxing to encode and decode between text and QR.

[benhylau]

Oops forgot this #2 exists.

[hossain-khan]

Hey @benhylau,
I haven't done much research into it, but I guess we should be able to easily create QR code with the URL and data. But don't we need a defined scheme name instead of scheme:// and then register intent filters in the app so that this app becomes one of the option to open the URL?

[benhylau]

Yea like this poc: https://github.com/benhylau/wrbt-poc/blob/master/README.md

[benhylau]

Sample QR implementation here:
https://github.com/bitcoin-wallet/bitcoin-wallet/blob/master/wallet/build.gradle#L16
https://github.com/bitcoin-wallet/bitcoin-wallet/blob/master/wallet/src/de/schildbach/wallet/util/Qr.java#L46