Struct JsonRpcResponse 

pub struct JsonRpcResponse {
    pub jsonrpc: String,
    pub id: Value,
    pub result: Option<Value>,
    pub error: Option<JsonRpcError>,
}

JSON-RPC 2.0 response message.

Fields

jsonrpc: String

Must be “2.0”.

id: Value

Must match the request ID.

result: Option<Value>

The result (present on success).

error: Option<JsonRpcError>

The error (present on failure).

Implementations

impl JsonRpcResponse

pub fn success(id: Value, result: Value) -> Self

Create a success response.

pub fn error(id: Value, error: JsonRpcError) -> Self

Create an error response.

pub fn tool_error(id: Value, message: impl Into<String>) -> Self

Create a tool error response (isError: true per MCP spec). Use this for tool execution failures instead of error().

pub fn into_tool_error_if_needed(self) -> Self

If this is a JSON-RPC error response, convert it to a tool error (isError: true) per MCP spec. Protocol errors pass through unchanged.

Trait Implementations

impl Clone for JsonRpcResponse

fn clone(&self) -> JsonRpcResponse

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for JsonRpcResponse

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for JsonRpcResponse

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for JsonRpcResponse

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.