David Caseria 24a9446581 Fix protoc build error		il y a 1 mois
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src	162507c492 feat: payment processor	il y a 1 mois
Cargo.toml	162507c492 feat: payment processor	il y a 1 mois
README.md	162507c492 feat: payment processor	il y a 1 mois
build.rs	24a9446581 Fix protoc build error	il y a 1 mois

CDK Payment Processor

The cdk-payment-processor is a Rust crate that provides both a binary and a library for handling payments to and from a cdk mint.

Overview

Library Components

Payment Processor Server: Handles interaction with payment processor backend implementations
Client: Used by mintd to query the server for payment information
Backend Implementations: Supports CLN, LND, and a fake wallet (for testing)

Features

Modular backend system supporting multiple Lightning implementations
Extensible design allowing for custom backend implementations

Building from Source

Prerequisites

Install Nix package manager
Enter development environment:
```
nix develop
```

Configuration

The server requires different environment variables depending on your chosen Lightning Network backend.

Core Settings

# Choose backend: CLN, LND, or FAKEWALLET
export CDK_PAYMENT_PROCESSOR_LN_BACKEND="CLN"

# Server configuration
export CDK_PAYMENT_PROCESSOR_LISTEN_HOST="127.0.0.1"
export CDK_PAYMENT_PROCESSOR_LISTEN_PORT="8090"

Backend-Specific Configuration

Core Lightning (CLN)

# Path to CLN RPC socket
export CDK_PAYMENT_PROCESSOR_CLN_RPC_PATH="/path/to/lightning-rpc"

Lightning Network Daemon (LND)

# LND connection details
export CDK_PAYMENT_PROCESSOR_LND_ADDRESS="localhost:10009"
export CDK_PAYMENT_PROCESSOR_LND_CERT_FILE="/path/to/tls.cert"
export CDK_PAYMENT_PROCESSOR_LND_MACAROON_FILE="/path/to/macaroon"

Building and Running

Build and run the binary with your chosen backend:

# For CLN backend
cargo run --bin cdk-payment-processor --no-default-features --features cln

# For LND backend
cargo run --bin cdk-payment-processor --no-default-features --features lnd

# For fake wallet (testing only)
cargo run --bin cdk-payment-processor --no-default-features --features fake

Development

To implement a new backend:

Create a new module implementing the payment processor traits
Add appropriate feature flags
Update the binary to support the new backend

For library usage examples and API documentation, refer to the crate documentation.

README.md