Struct CorsMiddleware 

pub struct CorsMiddleware { /* private fields */ }

CORS middleware implementing the Middleware trait.

Handles both preflight (OPTIONS) and actual requests, adding appropriate CORS headers and rejecting invalid origins/methods/headers.

Implementations

impl CorsMiddleware

pub fn new(config: CorsConfig) -> Self

Create a new CORS middleware with custom config.

pub fn permissive() -> Self

Create a permissive CORS config - useful for public APIs or local dev.

Allows all common methods, credentials, and common headers.

Trait Implementations

impl Clone for CorsMiddleware

fn clone(&self) -> CorsMiddleware

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for CorsMiddleware

fn default() -> CorsMiddleware

Returns the “default value” for a type.

impl Middleware for CorsMiddleware

fn handle<'req, 'life0, 'async_trait>( &'life0 self, req: Request<&'req str>, state: Arc<McpAppState>, next: MiddlewareNext<'req>, ) -> Pin<Box<dyn Future<Output = TransportServerResult<Response<GenericBody>>> + Send + 'async_trait>>

where Self: 'async_trait, 'req: 'async_trait, 'life0: 'async_trait,

Process a request, handling preflight or adding CORS headers.

• For OPTIONS with Access-Control-Request-Method: performs preflight.
• For other requests: passes to next, then adds CORS headers.