Enum ServerMessage 

pub enum ServerMessage {
    Request(ServerJsonrpcRequest),
    Notification(ServerJsonrpcNotification),
    Response(ServerJsonrpcResponse),
    Error(JsonrpcErrorResponse),
}

“Similar to JsonrpcMessage, but with the variants restricted to client-side messages.” ServerMessage represents a message sent by an MCP Server and received by an MCP Client.

Variants

Request(ServerJsonrpcRequest)

Notification(ServerJsonrpcNotification)

Response(ServerJsonrpcResponse)

Error(JsonrpcErrorResponse)

Implementations

impl ServerMessage

pub fn as_response(self) -> Result<ServerJsonrpcResponse, RpcError>

Converts the current message into a ServerJsonrpcResponse if it’s of the correct type.

This function checks if the current message is of type Response. If so, it returns the ServerJsonrpcResponse wrapped in a Result::Ok. If the message is not a Response, it returns an error with a descriptive message indicating the mismatch in expected message types.

Returns

• Ok(ServerJsonrpcResponse) if the message is a valid Response.
• Err(RpcError) if the message type is invalid

pub fn as_request(self) -> Result<ServerJsonrpcRequest, RpcError>

Converts the current message into a ServerJsonrpcRequest if it’s of the correct type.

This function checks if the current message is of type Request. If so, it returns the ServerJsonrpcRequest wrapped in a Result::Ok. If the message is not a Request, it returns an error with a descriptive message indicating the mismatch in expected message types.

Returns

• Ok(ServerJsonrpcRequest) if the message is a valid Request.
• Err(RpcError) if the message type is invalid

pub fn as_notification(self) -> Result<ServerJsonrpcNotification, RpcError>

Converts the current message into a ServerJsonrpcNotification if it’s of the correct type.

This function checks if the current message is of type Notification. If so, it returns the ServerJsonrpcNotification wrapped in a Result::Ok. If the message is not a Notification, it returns an error with a descriptive message indicating the mismatch in expected message types.

Returns

• Ok(ServerJsonrpcNotification) if the message is a valid Notification.
• Err(RpcError) if the message type is invalid

pub fn as_error(self) -> Result<JsonrpcErrorResponse, RpcError>

Converts the current message into a JsonrpcErrorResponse if it’s of the correct type.

This function checks if the current message is of type Error. If so, it returns the JsonrpcErrorResponse wrapped in a Result::Ok. If the message is not a Error, it returns an error with a descriptive message indicating the mismatch in expected message types.

Returns

• Ok(JsonrpcErrorResponse) if the message is a valid Error.
• Err(RpcError) if the message type is invalid

Trait Implementations

impl Clone for ServerMessage

fn clone(&self) -> ServerMessage

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ServerMessage

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ServerMessage

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for ServerMessage

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

Formats the value using the given formatter.

impl From<ServerJsonrpcNotification> for ServerMessage

fn from(value: ServerJsonrpcNotification) -> Self

Converts to this type from the input type.

impl From<ServerJsonrpcRequest> for ServerMessage

fn from(value: ServerJsonrpcRequest) -> Self

Converts to this type from the input type.

impl From<ServerJsonrpcResponse> for ServerMessage

fn from(value: ServerJsonrpcResponse) -> Self

Converts to this type from the input type.

impl From<ServerMessage> for ServerMessages

fn from(value: ServerMessage) -> Self

Converts to this type from the input type.

impl FromMessage<MessageFromServer> for ServerMessage

fn from_message( message: MessageFromServer, request_id: Option<RequestId>, ) -> Result<Self, RpcError>

impl FromStr for ServerMessage

type Err = RpcError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl McpMessage for ServerMessage

fn message_type(&self) -> MessageTypes

Determines the type of the message and returns the corresponding MessageTypes variant.

fn is_response(&self) -> bool

fn is_request(&self) -> bool

fn is_notification(&self) -> bool

fn is_error(&self) -> bool

impl RpcMessage for ServerMessage

fn request_id(&self) -> Option<&RequestId>

fn jsonrpc(&self) -> &str

impl Serialize for ServerMessage

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

where __S: Serializer,

Serialize this value into the given Serde serializer.