Rust http server using JSON-RPC 2.0.
Cargo.toml
[dependencies]
jsonrpc-core = { git = "https://github.com/paritytech/jsonrpc" }
jsonrpc-http-server = { git = "https://github.com/paritytech/jsonrpc" }
main.rs
```rust extern crate jsonrpccore; extern crate jsonrpchttp_server;
use jsonrpccore::*; use jsonrpchttp_server::*;
fn main() { let mut io = IoHandler::default(); io.addmethod("sayhello", |_| { Ok(Value::String("hello".into())) });
let server = ServerBuilder::new(io)
.cors(DomainsValidation::AllowOnly(vec![AccessControlAllowOrigin::Null]))
.start_http(&"127.0.0.1:3030".parse().unwrap())
.expect("Unable to start RPC server");
server.wait().unwrap();
} ```