Struct ExtensionActivator 

pub struct ExtensionActivator { /* private fields */ }

Client-side CallInterceptor that requests extension activation.

For each outgoing request, checks the server’s AgentCard for supported extensions and appends matching URIs to the x-a2a-extensions metadata header.

Example

use ra2a_ext::ExtensionActivator;

let activator = ExtensionActivator::new(vec![
    "urn:a2a:ext:duration".into(),
    "urn:a2a:ext:custom".into(),
]);
// client.with_interceptor(activator);

Implementations

impl ExtensionActivator

pub const fn new(extension_uris: Vec<String>) -> Self

Creates a new activator for the given extension URIs.

Trait Implementations

impl CallInterceptor for ExtensionActivator

fn before<'a>( &'a self, req: &'a mut Request, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'a>>

Called before the transport call. May modify outgoing metadata and payload.

fn after<'a>( &'a self, resp: &'a mut Response, ) -> Pin<Box<dyn Future<Output = Result<(), A2AError>> + Send + 'a>>

Called after the transport call. May inspect/modify response or error.

impl Debug for ExtensionActivator

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

Formats the value using the given formatter.