a.tolmachev
64 lines
1.6 KiB
Rust
64 lines
1.6 KiB
Rust
use serde_json::{Value, json};
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pub const CURRENT_PROTOCOL_VERSION: &str = "2025-11-25";
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pub const DEFAULT_PROTOCOL_VERSION: &str = "2025-03-26";
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pub const SUPPORTED_PROTOCOL_VERSIONS: &[&str] = &[
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DEFAULT_PROTOCOL_VERSION,
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"2025-06-18",
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CURRENT_PROTOCOL_VERSION,
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];
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pub fn request_id(message: &Value) -> Value {
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message.get("id").cloned().unwrap_or(Value::Null)
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}
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pub fn method_name(message: &Value) -> Option<&str> {
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message.get("method").and_then(Value::as_str)
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}
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pub fn params(message: &Value) -> Value {
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message
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.get("params")
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.cloned()
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.unwrap_or_else(|| Value::Object(Default::default()))
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}
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pub fn is_notification(message: &Value) -> bool {
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method_name(message).is_some() && message.get("id").is_none()
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}
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pub fn is_request(message: &Value) -> bool {
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method_name(message).is_some() && message.get("id").is_some()
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}
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pub fn is_response(message: &Value) -> bool {
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method_name(message).is_none()
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&& (message.get("result").is_some() || message.get("error").is_some())
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}
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pub fn jsonrpc_result(id: Value, result: Value) -> Value {
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json!({
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"jsonrpc": "2.0",
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"id": id,
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"result": result
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})
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}
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pub fn jsonrpc_error(id: Value, code: i64, message: impl Into<String>) -> Value {
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json!({
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"jsonrpc": "2.0",
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"id": id,
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"error": {
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"code": code,
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"message": message.into()
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}
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})
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}
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pub fn negotiated_protocol_version(requested: &str) -> Option<&'static str> {
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SUPPORTED_PROTOCOL_VERSIONS
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.iter()
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.copied()
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.find(|version| *version == requested)
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}
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