1 unstable release
0.5.0-alpha | Aug 4, 2020 |
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#588 in #web-framework
170KB
3K
SLoC
roa-jsonrpc
This crate provides a json rpc endpoint.
Example
use roa::App;
use roa_jsonrpc::{RpcEndpoint, Data, Error, Params, Server};
use std::error::Error as StdError;
#[derive(serde::Deserialize)]
struct TwoNums {
a: usize,
b: usize,
}
async fn add(Params(params): Params<TwoNums>) -> Result<usize, Error> {
Ok(params.a + params.b)
}
async fn sub(Params(params): Params<(usize, usize)>) -> Result<usize, Error> {
Ok(params.0 - params.1)
}
async fn message(data: Data<String>) -> Result<String, Error> {
Ok(String::from(&*data))
}
#[async_std::main]
async fn main() -> std::io::Result<()> {
let rpc = Server::new()
.with_data(Data::new(String::from("Hello!")))
.with_method("sub", sub)
.with_method("message", message)
.finish();
let app = App::new().end(RpcEndpoint(rpc));
app.listen("127.0.0.1:8000", |addr| {
info!("Server is listening on {}", addr)
})?
.await?;
Ok(())
}
Dependencies
~13MB
~251K SLoC