Skip to main content

CallInterceptor

a2a_protocol_client::interceptor

Trait CallInterceptor 

Source 
pub trait CallInterceptor:
    Send
    + Sync
    + 'static {
    // Required methods
    fn before<'a>(
        &'a self,
        req: &'a mut ClientRequest,
    ) -> impl Future<Output = ClientResult<()>> + Send + 'a;
    fn after<'a>(
        &'a self,
        resp: &'a ClientResponse,
    ) -> impl Future<Output = ClientResult<()>> + Send + 'a;
}
Expand description

Hooks called before every A2A request and after every response.

Implement this trait to add cross-cutting concerns such as authentication, logging, or metrics. Register interceptors via crate::ClientBuilder::with_interceptor.

§Object-safety note

This trait uses impl Future return types with explicit lifetimes, which is not object-safe. Internally the SDK wraps implementations in a boxed-future shim. Callers implement the ergonomic trait API.

Required Methods§

Source

fn before<'a>( &'a self, req: &'a mut ClientRequest, ) -> impl Future<Output = ClientResult<()>> + Send + 'a

Called before the request is sent.

Mutate req to modify parameters or inject headers.

Source

fn after<'a>( &'a self, resp: &'a ClientResponse, ) -> impl Future<Output = ClientResult<()>> + Send + 'a

Called after a successful response is received.

Dyn Compatibility§

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors§