We have a way of handling this scenario in Retrofit using Authenticator. Using Retrofit. Retrofit models REST endpoints as Java interfaces, making them very simple to understand and consume. Retrofit - How to add header authorization with type bearer For the authentication part we have to adjust the format of given username/email and password. For multiple dynamic headers, we use @HeaderMap. Однако я не могу вроде как получить тело ответа, когда статус ответа равен 422 (unprocessable entity).Тело ответа всегда равно null.. Я хочу узнать, так ли я что-то делаю не так или . Retrofit Basic Authentication in Android - JavaCodeMonk On Retrofit 1, there is no simple setup to get the request url. Kotlin; Retrofit; Licence Since Retrofit 2.0 you have two options. Android - Retrofit 2 - Authenticator Result Ok, enough about Headers, let's talk about how to send Headers from an Android app using Retrofit (2.X). interface RetrofitService { @GET ("users") suspend fun getUserList (@Header ("Authorization") token: String): List<User> } Bearer をつけたければ OkHttp の Interceptor で header を書き換える。. This article describes how to: - Authenticate and authorize when using Google Cloud Platform APIs. Add headers in http request using okhttp interceptor with retrofit 2 Logging interceptors print requests, responses, header data and additional . public class AuthenticationInterceptor implements Interceptor . As a matter of fact, pretty much exactly as you typed it out. The client sends HTTP requests with the Authorization header that contains the word Basic word followed by a space and a base64-encoded string username:password. Adding this interceptor ensures that the Authorization header is attached to every request triggered. 【Android】【Retrofit】Retrofit 2.0.1使い方メモとハマりどころメモ - Tumbling Dice Using Retrofit 2 and an OkHttp interceptor, you can add multiple request headers with the same key. There are many tutorials about using interceptor to add headers in Retrofit 1.X, but since the APIs have changed a .