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61 lines
2.5 KiB
Markdown
61 lines
2.5 KiB
Markdown
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---
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id: version-0.3.0-rpc-eclair
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title: Eclair
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original_id: rpc-eclair
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---
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This is a RPC client for [Eclair](https://github.com/acinq/eclair). It assumes that a bitcoind instance is running.
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Currently this RPC client is written for [v0.3.3](https://github.com/ACINQ/eclair/releases/tag/v0.3.3) version of Eclair.
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## Configuration of Eclair
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Please see the configuration secion of the
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[Eclair README](https://github.com/acinq/eclair#configuring-eclair).
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You can find the configuration we use for our testing infrastrture for eclair [here](https://github.com/bitcoin-s/bitcoin-s/blob/a043d3858ef33da51229ee59c478d2a6c9d5a46f/testkit/src/main/scala/org/bitcoins/testkit/eclair/rpc/EclairRpcTestUtil.scala#L98).
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## Starting the jar
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You need to download the jar from the [eclair's github](https://github.com/ACINQ/eclair/releases/tag/v0.3.3).
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To run Eclair you can use this command:
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```bash
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$ java -jar eclair-node-0.3.3-12ac145.jar &
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```
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If you wish to start Eclair from the RPC client, you can do one of the following:
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1. Construct a [`EclairRpcClient.binary`](https://github.com/bitcoin-s/bitcoin-s/blob/a043d3858ef33da51229ee59c478d2a6c9d5a46f/eclair-rpc/src/main/scala/org/bitcoins/eclair/rpc/client/EclairRpcClient.scala#L51) field set
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2. Set the [`ECLAIR_PATH`](https://github.com/bitcoin-s/bitcoin-s/blob/a043d3858ef33da51229ee59c478d2a6c9d5a46f/eclair-rpc/src/main/scala/org/bitcoins/eclair/rpc/client/EclairRpcClient.scala#L701) environment variable to the directory where the Eclair Jar is located.
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We will default to using the `binary` field first when trying to start the jar, and the fallback to `ECLAIR_PATH`.
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Here is an example of how to start eclair:
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```scala
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implicit val system = ActorSystem(s"eclair-rpc-${System.currentTimeMillis}")
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implicit val ec = system.dispatcher
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val datadirPath = Paths.get("path", "to", "datadir")
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val binaryPath = Paths.get("path", "to", "eclair-node-0.3.3-12ac145.jar")
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val instance = EclairInstance.fromDatadir(datadirPath.toFile,None)
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val client = new EclairRpcClient(instance, Some(binaryPath.toFile))
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val startedF = client.start()
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for {
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eclair <- startedF
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info <- eclair.getInfo
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} yield {
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println(s"Eclair info: $info")
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}
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```
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### Connecting to the websocket
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As of `v0.3.3` eclair supports a websocket endpoint. This means you can receive updates of what is happening with eclair
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in real time. You can see an example of us testing this [here](https://github.com/bitcoin-s/bitcoin-s/blob/a043d3858ef33da51229ee59c478d2a6c9d5a46f/eclair-rpc-test/src/test/scala/org/bitcoins/eclair/rpc/EclairRpcClientTest.scala#L591)
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