is there any Interceptor equivalent in Ktor like OkHttp?

When configuring Ktor

HttpClient

with the OkHttp engine, you have the opportunity to configure OkHttp to use interceptors.

what about other platform?

I haven't used OkHttp, but I assume interceptor is something like a ktor client feature that can intercept calls at various stages

By inspecting the

JsonFeature

, I noticed that it is possible to define interceptors with the following syntax :

// Transformation on the request
httpClient.requestPipeline.intercept(HttpRequestPipeline.Transform) { playload ->
    // Do some things with the request, then send it to the next level
    val result = transformMyRequest(payload)
    proceedWith(result)
}

// Transformations on the response
httpClient.responsePipeline.intercept(HttpResponsePipeline.Transform) { (info, body) ->
    // Do some things with the response, then send it to the next level
    val result = transformMyResponse(info, body)
    proceedWith(result)
}

More details on Ktor Pipelining : https://ktor.io/advanced/pipeline.html#interceptors-and-the-pipelinecontext

You can also use this to install an `interceptor`:

private fun HttpClientConfig<*>.authenticatedRequestsEngine() {
        engine {
            this@authenticatedRequestsEngine.install(KEY_AUTH_INTERCEPTOR) {
                this@authenticatedRequestsEngine.defaultRequest {
                    parameter(KEY_API_SECRET, BuildKonfig.API_KEY)
                }
            }
        }
    }