jsonrpc-derive 14.2.1

High level, typed wrapper for `jsonrpc-core`
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135

use futures::prelude::*;
use jsonrpc_core::{IoHandler, Result};
use jsonrpc_core_client::transports::local;
use jsonrpc_derive::rpc;

mod client_server {
	use super::*;

	#[rpc(params = "positional")]
	pub trait Rpc {
		#[rpc(name = "add")]
		fn add(&self, a: u64, b: u64) -> Result<u64>;

		#[rpc(name = "notify")]
		fn notify(&self, foo: u64);
	}

	struct RpcServer;

	impl Rpc for RpcServer {
		fn add(&self, a: u64, b: u64) -> Result<u64> {
			Ok(a + b)
		}

		fn notify(&self, foo: u64) {
			println!("received {}", foo);
		}
	}

	#[test]
	fn client_server_roundtrip() {
		let mut handler = IoHandler::new();
		handler.extend_with(RpcServer.to_delegate());
		let (client, rpc_client) = local::connect::<gen_client::Client, _, _>(handler);
		let fut = client
			.clone()
			.add(3, 4)
			.and_then(move |res| client.notify(res).map(move |_| res))
			.join(rpc_client)
			.map(|(res, ())| {
				assert_eq!(res, 7);
			})
			.map_err(|err| {
				eprintln!("{:?}", err);
				assert!(false);
			});
		tokio::run(fut);
	}
}

mod named_params {
	use super::*;
	use jsonrpc_core::Params;
	use serde_json::json;

	#[rpc(client, params = "named")]
	pub trait Rpc {
		#[rpc(name = "call_with_named")]
		fn call_with_named(&self, number: u64, string: String, json: Value) -> Result<Value>;

		#[rpc(name = "notify", params = "raw")]
		fn notify(&self, payload: Value);
	}

	#[test]
	fn client_generates_correct_named_params_payload() {
		let expected = json!({ // key names are derived from function parameter names in the trait
			"number": 3,
			"string": String::from("test string"),
			"json": {
				"key": ["value"]
			}
		});

		let mut handler = IoHandler::new();
		handler.add_method("call_with_named", |params: Params| Ok(params.into()));

		let (client, rpc_client) = local::connect::<gen_client::Client, _, _>(handler);
		let fut = client
			.clone()
			.call_with_named(3, String::from("test string"), json!({"key": ["value"]}))
			.and_then(move |res| client.notify(res.clone()).map(move |_| res))
			.join(rpc_client)
			.map(move |(res, ())| {
				assert_eq!(res, expected);
			})
			.map_err(|err| {
				eprintln!("{:?}", err);
				assert!(false);
			});
		tokio::run(fut);
	}
}

mod raw_params {
	use super::*;
	use jsonrpc_core::Params;
	use serde_json::json;

	#[rpc(client)]
	pub trait Rpc {
		#[rpc(name = "call_raw", params = "raw")]
		fn call_raw_single_param(&self, params: Value) -> Result<Value>;

		#[rpc(name = "notify", params = "raw")]
		fn notify(&self, payload: Value);
	}

	#[test]
	fn client_generates_correct_raw_params_payload() {
		let expected = json!({
			"sub_object": {
				"key": ["value"]
			}
		});

		let mut handler = IoHandler::new();
		handler.add_method("call_raw", |params: Params| Ok(params.into()));

		let (client, rpc_client) = local::connect::<gen_client::Client, _, _>(handler);
		let fut = client
			.clone()
			.call_raw_single_param(expected.clone())
			.and_then(move |res| client.notify(res.clone()).map(move |_| res))
			.join(rpc_client)
			.map(move |(res, ())| {
				assert_eq!(res, expected);
			})
			.map_err(|err| {
				eprintln!("{:?}", err);
				assert!(false);
			});
		tokio::run(fut);
	}
}