Enum DispatcherResult 

pub enum DispatcherResult {
    Success(Value),
    Error(String),
}

Result from the MCP dispatcher (success or error)

Middleware can inspect and modify this result in after_dispatch().

Examples

use turul_http_mcp_server::middleware::DispatcherResult;
use serde_json::json;

let mut result = DispatcherResult::Success(json!({"output": "Hello"}));

// Middleware can transform successful responses
if let DispatcherResult::Success(ref mut value) = result {
    if let Some(obj) = value.as_object_mut() {
        obj.insert("timestamp".to_string(), json!("2025-10-04T12:00:00Z"));
    }
}

Variants

Success(Value)

Successful response (JSON-RPC result field)

Error(String)

Error response (will be converted to JSON-RPC error)

Implementations

impl DispatcherResult

pub fn is_success(&self) -> bool

Check if result is successful

pub fn is_error(&self) -> bool

Check if result is an error

pub fn success(&self) -> Option<&Value>

Get success value (if any)

pub fn success_mut(&mut self) -> Option<&mut Value>

Get mutable success value (if any)

pub fn error(&self) -> Option<&str>

Get error message (if any)

Trait Implementations

impl Clone for DispatcherResult

fn clone(&self) -> DispatcherResult

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DispatcherResult

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

Formats the value using the given formatter.