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eclair/README.md
dpad85 3e81fce898 (gui) Fix direction icons in the list of the known channels in network (#119)
* (gui) channel direction is built from current item state

* using an objectproperty binding with the cell value instead of a string so
  that we can directly access the state within the factory

* (gui) Using option for direction boolean instead of dedicated state

* Tell explicitly in readme that `eclair.conf` must be manually created (#129)

* also added an explicit link to the binaries
* fix #125
2017-08-17 13:04:43 +02:00

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![Eclair Logo](.readme/logo.png)
[![Build Status](https://travis-ci.org/ACINQ/eclair.svg?branch=master)](https://travis-ci.org/ACINQ/eclair)
[![License](https://img.shields.io/badge/license-Apache%202.0-blue.svg)](LICENSE)
[![Gitter chat](https://img.shields.io/badge/chat-on%20gitter-rose.svg)](https://gitter.im/ACINQ/eclair)
**Eclair** (french for Lightning) is a scala implementation of the Lightning Network. It can run with or without a GUI, and a JSON-RPC API is also available.
This software follows the [Lightning Network Specifications (BOLTs)](https://github.com/lightningnetwork/lightning-rfc). Other implementations include [lightning-c], [lit], and [lnd].
---
:construction: Both the BOLTs and Eclair itself are a work in progress. Expect things to break/change!
:warning: Eclair currently only runs on regtest or testnet. We recommend testing in regtest, as it allows you to generate blocks manually and not wait for confirmations.
:rotating_light: We had reports of Eclair being tested on various segwit-enabled blockchains. Keep in mind that Eclair is still alpha quality software, by using it with actual coins you are putting your funds at risk!
---
## Lightning Network Specification Compliance
Please see the latest [release note](https://github.com/ACINQ/eclair/releases) for detailed information on BOLT compliance.
## Overview
![Eclair Demo](.readme/screen-1.png)
## Installation
:warning: **Those are valid for the most up-to-date, unreleased, version of eclair. Here are the [instructions for Eclair 0.2-alpha4](https://github.com/ACINQ/eclair/blob/v0.2-alpha4/README.md#installation)**.
### Configuring Bitcoin Core
Eclair needs a _synchronized_, _segwit-ready_, **_zeromq-enabled_**, _non-pruning_, _tx-indexing_ [Bitcoin Core](https://github.com/bitcoin/bitcoin) node. This means that on Windows you will need Bitcoin Core 0.14+.
Run bitcoind with the following minimal `bitcoin.conf`:
```
regtest=1
server=1
rpcuser=XXX
rpcpassword=XXX
txindex=1
zmqpubrawblock=tcp://127.0.0.1:29000
zmqpubrawtx=tcp://127.0.0.1:29000
```
### Installing Eclair
The released binaries can be downloaded [here](https://github.com/ACINQ/eclair/releases).
#### Windows
Just use the windows installer, it should create a shortcut on your desktop.
#### Linux, macOS or manual install on Windows
You need to first install java, more precisely a [JRE 1.8](http://www.oracle.com/technetwork/java/javase/downloads/jre8-downloads-2133155.html).
:warning: If you are using the OpenJDK JRE, you will need to build OpenJFX yourself, or run the application in `--headless` mode.
Then download the latest fat jar and depending on whether or not you want a GUI run the following command:
* with GUI:
```shell
java -jar eclair-node-javafx_xxxxxx-fat.jar
```
* without GUI:
```shell
java -jar eclair-node_xxxxxx-fat.jar
```
### Configuring Eclair
#### Command-line parameters
option | description | default value
---------------|---------------------------------|--------------
--datadir | Path to the data directory | ~/.eclair
--help, -h | Display usage text |
:warning: Using separate `datadir` is mandatory if you want to run **several instances of eclair** on the same machine. You will also have to change ports in the configuration (see below).
#### Configuration file
To change your node's configuration, create a file named `eclair.conf` in `datadir`. To change an option, for example the HTTP port, write `eclair.api.port=8081` in the created file.
option | description | default value
-----------------------------|---------------------------|--------------
eclair.server.port | TCP port | 9735
eclair.api.port | HTTP port | 8080
eclair.bitcoind.rpcuser | Bitcoin Core RPC user | foo
eclair.bitcoind.rpcpassword | Bitcoin Core RPC password | bar
eclair.bitcoind.zmq | Bitcoin Core ZMQ address | tcp://127.0.0.1:29000
→ see [`reference.conf`](eclair-core/src/main/resources/reference.conf) for full reference. There are many more options!
## JSON-RPC API
method | params | description
-------------|-----------------------------------------------|-----------------------------------------------------------
getinfo | | return basic node information (id, chain hash, current block height)
connect | host, port, nodeId | connect to another lightning node through a secure connection
open | host, port, nodeId, fundingSatoshis, pushMsat | opens a channel with another lightning node
peers | | list existing local peers
channels | | list existing local channels
channel | channelId | retrieve detailed information about a given channel
network | | list all nodes that have been announced
receive | amountMsat, description | generate a payment request for a given amount
send | amountMsat, paymentHash, nodeId | send a payment to a lightning node
send | paymentRequest | send a payment to a lightning node using a BOLT11 payment request
close | channelId | close a channel
close | channelId, scriptPubKey (optional) | close a channel and send the funds to the given scriptPubKey
help | | display available methods
## Resources
- [1] [The Bitcoin Lightning Network: Scalable Off-Chain Instant Payments](https://lightning.network/lightning-network-paper.pdf) by Joseph Poon and Thaddeus Dryja
- [2] [Reaching The Ground With Lightning](https://github.com/ElementsProject/lightning/raw/master/doc/deployable-lightning.pdf) by Rusty Russell
[Amiko-Pay]: https://github.com/cornwarecjp/amiko-pay
[lightning-c]: https://github.com/ElementsProject/lightning
[lnd]: https://github.com/LightningNetwork/lnd
[lit]: https://github.com/mit-dci/lit
[Thunder]: https://github.com/blockchain/thunder