RequestInterceptor

Interface for intercepting network responses and deciding whether a request is retried.

A NetworkClient notifies its interceptors of the result of every attempt and asks them whether to retry it; add interceptors by deriving a client with NetworkClient.newClient. The built-in ones are created with RequestInterceptors.retryWithBackoff and RequestInterceptors.retryWhenConnected. Interceptors are asked to shouldRetry in reverse order, so add RequestInterceptors.retryWhenConnected last: it is then asked first and, while the device is offline, waits for connectivity instead of letting RequestInterceptors.retryWithBackoff use up its attempts:

val client = networkClient.newClient(
    listOf(
        RequestInterceptors.retryWithBackoff(maxAttempts = 3),
        RequestInterceptors.retryWhenConnected(connectivity)
    ),
    maxRetryCount = 10
)

onAttemptResult and shouldRetry are called on the Tealium background thread.