I have to deal with a third party api that I canno't change, they are using oAuth, however in case t...

# ktor

[Angelo Rüggeberg]

I have to deal with a third party api that I canno't change, they are using oAuth, however in case the access token is invalid, the Server does not respond with 401 instead with 500 and a custom error code in the response body. How can I rewrite the Response in such a way that the ktor client uses the refreshTokens method provided ?

[Angelo Rüggeberg]

I already tried using HttpResponseValidator with handleResponseExceptionWithRequest but I can only throw another Exception in there and not sure wich i need to throw to let the client react with refreshTokens.

[Giuliopime]

Which plugin are you using?

[Angelo Rüggeberg]

The standard Auth plugin :

install(Auth) {
    bearer {
        loadTokens {
            ....
        }
        refreshTokens {
             ....
        }
    }
}

[Aleksei Tirman [JB]]

You can try using this workaround.

[Angelo Rüggeberg]

I already tried that, however i cannot access body() in there unfortunatley and i need to parse the responses content json

[Angelo Rüggeberg]

io.ktor.client.call.NoTransformationFoundException: No transformation found: class io.ktor.utils.io.ByteBufferChannel (Kotlin reflection is not available)

This is what I get to be perceise. when I do the following:

install("CustomAuthError") {
                receivePipeline.intercept(HttpReceivePipeline.Before) { response ->
                    if (response.status == HttpStatusCode.InternalServerError) {
val error = response.body<ErrorContent>()

[Angelo Rüggeberg]

The Solution otherwise would work I just unfortunately cannot access the content body 😕