Module retry 

Configurable retry policy for transient client errors.

Wraps any Transport to automatically retry on transient failures (connection errors, timeouts, server 5xx responses) with exponential backoff.

Interceptors run once per call, not per attempt

The retry layer sits below the client’s interceptor chain: headers an AuthInterceptor produces are computed once and reused for every attempt. A server-directed Retry-After is honored up to one hour, so a short-lived credential can expire between attempts — the retried request then fails with a non-retryable auth error rather than re-deriving the header. Refresh credentials in the store and issue a new call if that matters for your deployment.

Example

use a2a_protocol_client::{ClientBuilder, RetryPolicy};

let client = ClientBuilder::new("http://localhost:8080")
    .with_retry_policy(RetryPolicy::default())
    .build()?;

Structs

RetryPolicy

Configuration for automatic retry with exponential backoff.