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8898511cf6
We had a bit of a chicken-and-egg problem, where we instantiated the `state` to be managed by the `Plugin` during the very first step when creating the `Builder`, but then the state might depend on the configuration we only get later. This would force developers to add placeholders in the form of `Option` into the state, when really they'd never be none after configuring. This defers the binding until after we get the configuration and cleans up the semantics: - `Builder`: declare options, hooks, etc - `ConfiguredPlugin`: we have exchanged the handshake with `lightningd`, now we can construct the `state` accordingly - `Plugin`: Running instance of the plugin Changelog-Changed: cln-plugin: Moved the state binding to the plugin until after the configuration step
44 lines
1.3 KiB
Rust
44 lines
1.3 KiB
Rust
//! This is a test plugin used to verify that we can compile and run
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//! plugins using the Rust API against Core Lightning.
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#[macro_use]
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extern crate serde_json;
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use cln_plugin::{options, Builder, Error, Plugin};
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use tokio;
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#[tokio::main]
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async fn main() -> Result<(), anyhow::Error> {
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let state = ();
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if let Some(plugin) = Builder::new(tokio::io::stdin(), tokio::io::stdout())
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.option(options::ConfigOption::new(
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"test-option",
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options::Value::Integer(42),
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"a test-option with default 42",
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))
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.rpcmethod("testmethod", "This is a test", testmethod)
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.subscribe("connect", connect_handler)
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.hook("peer_connected", peer_connected_handler)
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.start(state)
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.await?
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{
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plugin.join().await
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} else {
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Ok(())
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}
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}
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async fn testmethod(_p: Plugin<()>, _v: serde_json::Value) -> Result<serde_json::Value, Error> {
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Ok(json!("Hello"))
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}
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async fn connect_handler(_p: Plugin<()>, v: serde_json::Value) -> Result<(), Error> {
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log::info!("Got a connect notification: {}", v);
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Ok(())
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}
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async fn peer_connected_handler(
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_p: Plugin<()>,
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v: serde_json::Value,
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) -> Result<serde_json::Value, Error> {
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log::info!("Got a connect hook call: {}", v);
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Ok(json!({"result": "continue"}))
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}
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