Android Retrofit Parameterized @Headers

android, annotations, java, retrofit

Solution

Besides using @Header parameter, I'd rather use RequestInterceptor to update all your request without changing your interface. Using something like:

RestAdapter.Builder builder = new RestAdapter.Builder()
    .setRequestInterceptor(new RequestInterceptor() {
        @Override
        public void intercept(RequestFacade request) {
            request.addHeader("Accept", "application/json;versions=1");
            if (isUserLoggedIn()) {
                request.addHeader("Authorization", getToken());
            }                    
        }
    });

p/s : If you are using Retrofit2, you should use `Interceptor` instead of `RequestInterceptor`

Since `RequestInterceptor` is not longer available in Retrofit 2.0

Problem

I am using OAuth and I need to put the OAuth token in my header every time I make a request. I see the `@Header` annotation, but is there a way to make it parameterized so i can pass in at run time? Here is the concept `@Header({Authorization:'OAuth {var}', api_version={var} })` Can you pass them in at Runtime? ``` @GET("/users") void getUsers( @Header("Authorization") String auth, @Header("X-Api-Version") String version, Callback<User> callback ) ```

Original source

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