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3 stable releases
15.1.0 | Mar 13, 2021 |
---|---|
14.2.1 | Mar 1, 2021 |
#64 in #rpc-server
72 downloads per month
Used in 25 crates
(2 directly)
190KB
5.5K
SLoC
tetsy-jsonrpc-http-server
Rust http server using JSON-RPC 2.0.
Example
Cargo.toml
[dependencies]
tetsy-jsonrpc-http-server = "14.2"
main.rs
use tetsy_jsonrpc_http_server::*;
use tetsy_jsonrpc_http_server::tetsy_jsonrpc_core::*;
fn main() {
let mut io = IoHandler::default();
io.add_method("say_hello", |_| {
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();
}
You can now test the above server by running cargo run
in one terminal, and from another terminal issue the following POST request to your server:
$ curl -X POST -H "Content-Type: application/json" -d '{"jsonrpc": "2.0", "method": "say_hello", "id":123 }' 127.0.0.1:3030
to which the server will respond with the following:
{"jsonrpc":"2.0","result":"hello","id":123}
If you omit any of the fields above, or invoke a different method you will get an informative error message:
$ curl -X POST -H "Content-Type: application/json" -d '{"method": "say_hello", "id":123 }' 127.0.0.1:3030
{"error":{"code":-32600,"message":"Unsupported JSON-RPC protocol version"},"id":123}
$ curl -X POST -H "Content-Type: application/json" -d '{"jsonrpc": "2.0", "method": "say_bye", "id":123 }' 127.0.0.1:3030
{"jsonrpc":"2.0","error":{"code":-32601,"message":"Method not found"},"id":123}
Dependencies
~14MB
~250K SLoC