[Feature request] Blink as a funding source

[openoms]

Is your feature request related to a problem? Please describe.
Came across multiple instances of services built on LNbits where were issues with the stability and / or liquidity of the underlying funding source.

Blink has recently made its public API available for integrations
Techincal documentation: https://dev.blink.sv
Generic info: https://www.blink.sv/en/api

Already has FOSS plugins for BTCPay Server, Alby and a python based LightningATM which can be used as implementation examples.

Making Blink accounts available to be a funding source for LNbits could make the many features of LNbits more easily available for a wider audience by taking over the burden of lightning node management.

Describe the solution you'd like
Implement the necessary GraphQL calls and websocket connection to serve the needs of LNbits.

Describe alternatives you've considered
The currently available funding sources are listed here: https://github.com/lnbits/lnbits/tree/dev/lnbits/wallets

Additional Context
One of the main features of Blink is Stablesats (synthetic USD) which allows an account to have USD cent denominated wallet beside the BTC (satoshi) based one. More info: https://stablesats.com/
Floating the idea that as a further integration step LNbits could be made able to handle wallets denominated in USD.

[bitkarrot]

Give me a week or so and I can tackle this! @openoms

[openoms]

Heads up: Galoy offers a 1M sats bounty to have this integration done. Details:
at GaloyMoney/blink#3949

[motorina0]

Included in release 0.12.9 .

[bitkarrot]

Thank you!