Android retrofit2 get token of oauth2

 

class AuthenticateInterceptor() : Interceptor {
    override fun intercept(chain: Interceptor.Chain): Response {
        var request = chain.request()
        request.let {
            val builder = it.newBuilder()
            val credentials = Credentials.basic("client_id", "client_secret")
            builder.addHeader("Authorization", credentials)
            request = builder.build()
        }
        return chain.proceed(request)
    }
}

 

Retrofit.Builder()
                .client(getOkHttpClientBuilder(AuthenticateInterceptor()).build())
                .baseUrl(GSConfig.getRestBaseUrl(true))
                .addConverterFactory(GsonConverterFactory.create())
                .build().create(CommonRestApi::class.java)

 

CommonRestApi class

 @POST("/oauth/token")
 @FormUrlEncoded
 fun getAuthToken(): Call<OAuthTokenResponse>

 

How to use

 

val call = RetrofitCreator.getInstance().createCommonApi().getAuthToken()

        call.enqueue(object : SDCallback<OAuthTokenResponse>(activity) {

            override fun onSuccess(response: Response<OAuthTokenResponse>) {
                response.body()?.let {
                    oAuthTokenResponse.postValue(it)
                } ?: let {
                    oAuthTokenResponse.postValue(null)
                }
            }

            override fun onFail(apiError: APIError) {
                oAuthTokenResponse.postValue(null)
            }

            override fun onNetworkError() {
                oAuthTokenResponse.postValue(null)
            }

        })