Btcpayserver - ArchWiki

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# Btcpayserver

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From ArchWiki

BTCPayServer is an open source payment processor for crypto currencies licensed under the MIT license. While Bitcoin is supported natively, other crypto currencies are supported via extensions. The software is written in C# and is accessed over the web browser. The core idea of the project is to give merchants full control over payments without a middleman.

## Installation

Install the package btcpayserverAUR.

## Configuration

### Bitcoin

BTCPayServer communicates with the Bitcoin node via RPC. For this, those values need to be set. Edit `/etc/bitcoin/bitcoin.conf` and set `rpcuser=` and `rpcpassword=`. Moreover, a whitelist must be defined with `whitelist=127.0.0.1`.

Note: Bitcoin requires several hundreds GiB of disk space. You may want to run a pruned node. This is done by uncommenting `prune=550` in `/etc/bitcoin/bitcoin.conf`.

### Optional configuration

Usage of the lightning network is optional. Information on the lightning connection string can be found here. Decide for one lightning implementation.

#### LND

Execute `lnd` as a private key needs to be generated. Then, execute `lncli create` and create your needed wallet or restore an existing one. Edit `/etc/bitcoin/bitcoin.conf` and add the following settings.

    zmqpubrawblock=tcp://127.0.0.1:28332
    zmqpubrawtx=tcp://127.0.0.1:28333

## Usage

Start/enable `bitcoind.service`

### Lightning

#### Core Lightning

`lightningd --bitcoin-rpcpassword "${bitcoin_rpc_password}" --bitcoin-rpcuser "${USER}" --log-level info --network bitcoin --rpc-file "${XDG_STATE_HOME}"/lightning/lightning-rpc`

#### LND

`lnd --bitcoin.active --bitcoin.mainnet --bitcoin.node bitcoind --bitcoind.rpcpass "${bitcoin_rpc_password}" --bitcoind.rpcuser "${USER}" --bitcoind.zmqpubrawblock tcp://127.0.0.1:28332 --bitcoind.zmqpubrawtx tcp://127.0.0.1:28333 --externalip localhost` `lncli unlock`

### NBXplorer

`nbxplorer --btcrpcpassword "${bitcoin_rpc_password}" --btcrpcuser "${USER}" -d "${XDG_DATA_HOME}"/nbxplorer/ --postgres "User ID=\"${USER}\";Password=\"${postgresql_password}\";Host=localhost;Port=5432;Database=nbxplorer;"`

### BTCPayServer

When running no lightning node, just skip the option `--btclightning`.

#### With Core Lightning

`btcpayserver --btclightning type=clightning;unix://"${XDG_STATE_HOME}"/lightning/lightning-rpc -d "${XDG_DATA_HOME}"/btcpayserver/ --explorerpostgres "User ID=\"${USER}\";Password=\"${postgresql_password}\";Host=localhost;Port=5432;Database=nbxplorer;\" --sqlitefile btcpayserver.db`

#### With LND

`btcpayserver --btclightning type=lnd-rest;server=https://127.0.0.1:8080/;macaroonfilepath=/home/"${USER}"/.lnd/data/chain/bitcoin/mainnet/admin.macaroon;certthumbprint="$(openssl x509 -noout -fingerprint -sha256 -in ~/.lnd/tls.cert | sed -e "s/.*=//;s/://g")" -d "${XDG_DATA_HOME}\"/btcpayserver/ --explorerpostgres "UserID=\"${USER}\";Password=${postgresql_password};Host=localhost;Port=5432;Database=nbxplorer;\" --sqlitefile btcpayserver.db`

Category:

- Web applications