CDK CLN

ALPHA This library is in early development, the API will change and should be used with caution.

Core Lightning (CLN) backend implementation for the Cashu Development Kit (CDK).

Installation

Add this to your Cargo.toml:

[dependencies]
cdk-cln = "*"

Configuration for cdk-mintd

Config File

[ln]
ln_backend = "cln"

[cln]
rpc_path = "/path/to/.lightning/bitcoin/lightning-rpc"
bolt12 = true            # Optional, defaults to true
fee_percent = 0.02       # Optional, defaults to 2%
reserve_fee_min = 2      # Optional, defaults to 2 sats

Environment Variables

All configuration can be set via environment variables:

Variable	Description	Required
`CDK_MINTD_LN_BACKEND`	Set to `cln`	Yes
`CDK_MINTD_CLN_RPC_PATH`	Path to CLN RPC socket	Yes
`CDK_MINTD_CLN_BOLT12`	Enable BOLT12 support (default: `true`)	No
`CDK_MINTD_CLN_FEE_PERCENT`	Fee percentage (default: `0.02`)	No
`CDK_MINTD_CLN_RESERVE_FEE_MIN`	Minimum fee in sats (default: `2`)	No

Example

export CDK_MINTD_LN_BACKEND=cln
export CDK_MINTD_CLN_RPC_PATH=/home/user/.lightning/bitcoin/lightning-rpc
cdk-mintd

License

This project is licensed under the MIT License.