Bitcoin Lightning client

• Open-source zero-fee no-download offline-capable anonymous instant micropayments platform with plugins.

Offline

• DIY cardboard offline Bitcoin ATMs, Arduino/RaspberryPi.

lightning-atm.mp4

• International payments over Radio.

Shop

• Rural or mobile shops just need 1 QR, works even without internet (invoice via SMS) or electricity (QR or URL).

lnurl-shop-rural-south-africa.mp4

Example

import bitcoinlightning
let client: BitcoinLightning = newBitcoinLightning(apiKey = "YOUR_API_KEY_HERE")
echo client.getWallet()                        # Get your wallet.
echo client.getInvoice(amount = 666.Positive)  # Receive (Sell).
echo client.payInvoice("YOUR_INVOICE_HERE")    # Send (Pay).

ELI5

• Receive money with 1 new Bitcoin Lightning incoming invoice, thats just 1 string (or Link, or QR).
• Send money with 1 new Bitcoin Lightning outgoing invoice, thats just 1 string (or Link, or QR).

Design

• It does not use anything from Nim standard library, very future-proof.
• HTTPS JSON REST API, KISS. 1 file, <100 lines, zero dependencies, any target.
• Simple minimal API, all functions with 2 arguments max.

Disclaimer

Bitcoin Lightning is decentralized, so theres multiple services, but this way was the simplest and recommended approach as of 2022, if you just want to build something that can be monetized quickly. I investigated to use lntxbot but it has no HTTP API. I investigated to use Bitrefill but it has no HTTP API. I investigated to use Binance but it has no Lightning API. Anyway the idea of the Lightning network is that the API server does not really matter, because you can just send to any other Lightning wallet anywhere. In the future, if better services appear, then the library can be changed.

FAQ

• I try to send a million USD/EUR and it fails?

It is a lightweight API for MICROpayments, use Bitcoin onchain for big amounts.

• I need to generate QR?

https://github.com/ThomasTJdev/nim_qr#examples

• I need more features, like other coins and more?

https://github.com/juancarlospaco/binance#binance

• Is this a web app?

HTTPS JSON REST API client.

See also

• https://github.com/juancarlospaco/binance#binance
• https://github.com/juancarlospaco/tradingview#tradingview
• https://github.com/juancarlospaco/cloudbet#cloudbet

💰➡️🍕

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