Struct MiddlewareChain 

pub struct MiddlewareChain { /* private fields */ }

Middleware chain for executing multiple middleware in order

Implementations

impl MiddlewareChain

pub fn new() -> Self

Create a new middleware chain

pub fn add_middleware<M: McpMiddleware + 'static>(self, middleware: M) -> Self

Add middleware to the chain

pub fn add_arc(self, middleware: Arc<dyn McpMiddleware>) -> Self

Add middleware from Arc

pub async fn execute<F, Fut>( &self, request: CallToolRequest, handler: F, ) -> McpResult<CallToolResult>

where F: FnOnce(CallToolRequest) -> Fut, Fut: Future<Output = McpResult<CallToolResult>> + Send,

Execute the middleware chain for a request

Errors

This function will return an error if:

• Any middleware in the chain returns an error
• The main handler function returns an error
• Any middleware fails during execution

pub fn len(&self) -> usize

Get the number of middlewares in the chain

pub fn is_empty(&self) -> bool

Check if the chain is empty

Trait Implementations

impl Default for MiddlewareChain

fn default() -> Self

Returns the “default value” for a type.