Newer
Older
use beef::lean::Cow;
use serde::de::{self, Deserializer, Unexpected, Visitor};
use serde::ser::Serializer;
use serde::{Deserialize, Serialize};
use serde_json::value::RawValue;
use std::fmt;
/// [JSON-RPC request object](https://www.jsonrpc.org/specification#request-object)
#[derive(Deserialize, Debug)]
#[serde(deny_unknown_fields)]
pub struct JsonRpcRequest<'a> {
#[serde(borrow)]
pub id: Option<&'a RawValue>,
#[serde(borrow)]
pub params: Option<&'a RawValue>,
}
/// Invalid request with known request ID.
#[derive(Deserialize, Debug)]
pub struct JsonRpcInvalidRequest<'a> {
#[serde(borrow)]
pub id: Option<&'a RawValue>,
}
/// JSON-RPC notification (a request object without a request ID).
#[derive(Serialize, Debug)]
pub struct JsonRpcNotification<'a> {
pub params: JsonRpcNotificationParams<'a>,
}
/// JSON-RPC parameter values for subscriptions.
#[derive(Serialize, Debug)]
pub struct JsonRpcNotificationParams<'a> {
#[derive(Serialize, Debug)]
pub struct JsonRpcResponse<'a, T> {
#[derive(Serialize, Debug)]
pub struct JsonRpcError<'a> {
/// [JSON-RPC error object](https://www.jsonrpc.org/specification#error-object)
#[derive(Serialize, Debug)]
pub struct JsonRpcErrorParams<'a> {
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
#[derive(Debug, Default)]
pub struct TwoPointZero;
struct TwoPointZeroVisitor;
impl<'de> Visitor<'de> for TwoPointZeroVisitor {
type Value = TwoPointZero;
fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
formatter.write_str(r#"a string "2.0""#)
}
fn visit_str<E>(self, s: &str) -> Result<Self::Value, E>
where
E: de::Error,
{
match s {
"2.0" => Ok(TwoPointZero),
_ => Err(de::Error::invalid_value(Unexpected::Str(s), &self)),
}
}
}
impl<'de> Deserialize<'de> for TwoPointZero {
fn deserialize<D>(deserializer: D) -> Result<TwoPointZero, D::Error>
where
D: Deserializer<'de>,
{
deserializer.deserialize_str(TwoPointZeroVisitor)
}
}
impl Serialize for TwoPointZero {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
serializer.serialize_str("2.0")
}
}
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
/// Parameters sent with the RPC request
#[derive(Clone, Copy)]
pub struct RpcParams<'a>(Option<&'a str>);
impl<'a> RpcParams<'a> {
/// Create params
pub fn new(raw: Option<&'a str>) -> Self {
Self(raw)
}
/// Attempt to parse all parameters as array or map into type T
pub fn parse<T>(self) -> Result<T, RpcError>
where
T: Deserialize<'a>,
{
match self.0 {
None => Err(RpcError::InvalidParams),
Some(params) => serde_json::from_str(params).map_err(|_| RpcError::InvalidParams),
}
}
/// Attempt to parse only the first parameter from an array into type T
pub fn one<T>(self) -> Result<T, RpcError>
where
T: Deserialize<'a>,
{
self.parse::<[T; 1]>().map(|[res]| res)
}
}