Develop Reference

Retrofit response does not contain response data

I am hitting this API https://westus.dev.cognitive.microsoft.com/docs/services/563309b6778daf02acc0a508/operations/563309b7778daf06340c9652/console
below is my retrofit code. I am not able to send raw JSON in retrofit.
public void createProfileAPI()
{
ApiInterface apiService = ApiClient.getClientRequest().create(ApiInterface.class);
try
{
//pbVrd.setVisibility(View.VISIBLE);
JSONObject paramObject = new JSONObject();
paramObject.put("locale", "en-us");
LocaleModel localeModel = new LocaleModel();
localeModel.setLocale("en-us");
Call<BaseModel> call = apiService.SearchResponse(localeModel);
call.enqueue(new Callback<BaseModel>()
{
#Override
public void onResponse(Call<BaseModel> call, Response<BaseModel> response)
{
int responseCode = response.code();
Log.d("Deepakw" , responseCode+"");
BaseModel response1 = response.body();
Log.d("Deepak" , response.body().getIdentificationProfileId() + " //// " +response1.getIdentificationProfileId()+"");
}
#Override
public void onFailure(Call<BaseModel> call, Throwable t)
{
Log.d("Responce Failed ", "failed Response Mersen Fuse ");
String message = t.getMessage();
Log.d("failure", message);
}
});
}
catch (Exception e)
{
e.printStackTrace();
}
}
public class ApiClient {
public static final String BASE_URL = "https://westus.api.cognitive.microsoft.com/spid/v1.0/";
private static Retrofit retrofit = null;
public static Retrofit getClientRequest() {
if (retrofit == null) {
retrofit = new Retrofit.Builder()
.baseUrl(BASE_URL)
.addConverterFactory(GsonConverterFactory.create())
.build();
}
return retrofit;
}
}
public interface ApiInterface {
#Headers({
"Content-Type: application/json",
"Ocp-Apim-Subscription-Key: 0219cf3e3d444f0584f80b3a84613d12"
})
#POST("verificationProfiles")
Call<BaseModel> SearchResponse(#Body LocaleModel body);
};
I am not able to get response
API client
Please help

//In ApiInterface do like this
#Headers("charset:UTF-8")
#POST("verificationProfiles")
Call<BaseModel> SearchResponse(
#Header("Content-Type") String contentType,
#Body LocaleModel body);
have you tried #SerializedName("") and #Expose in your pojo class
#SerializedName("status")
#Expose
private Boolean status;

Instead of JSONObject, you can use Map
For example:
Headers("Content-Type: application/json")
#POST("/apipath")
request(#Body Map<String, String> body);

Why response.body() its null?

Im using retrofit to send a a json object to the server, im trying to create a user, im sending this json object
{"apellido":"prueba","email":"prueba#hotmail.com","fechaDeNacimiento":"11/29/1998","formaDeRegistro":"Android","nombre":"prueba","password":"12345678","username":"prueba"}
In this example i create a invalid user , so the server response with a json object where code its the code error and message its the explication of the error
[{"code":"5","message":"The email is in use"}]
Interface
public interface UserClient {
#POST("usuarios")
Call<Usuarios> create(#Body Usuarios usuario);
}
Data model
import com.google.gson.annotations.SerializedName;
public class Usuarios {
#SerializedName("username")
String username;
#SerializedName("email")
String email;
#SerializedName("password")
String password;
#SerializedName("nombre")
String nombre;
#SerializedName("apellido")
String apellido;
#SerializedName("fechaDeNacimiento")
String fechaDeNacimiento;
#SerializedName("formaDeRegistro")
String formaDeRegistro;
String message;
public Usuarios(String email, String username, String password, String nombre, String apellido, String fechaDeNacimiento, String formaDeRegistro){
this.username=username;
this.email=email;
this.password=password;
this.nombre = nombre;
this.apellido= apellido;
this.fechaDeNacimiento = fechaDeNacimiento;
this.formaDeRegistro = formaDeRegistro;
}
public String getMessage(){
return message;
}
}
and Retrofit implement
OkHttpClient.Builder okhttpClientBuilder=new OkHttpClient.Builder();
HttpLoggingInterceptor loggin=new HttpLoggingInterceptor();
loggin.setLevel(HttpLoggingInterceptor.Level.BODY);
okhttpClientBuilder.addInterceptor(loggin);
Retrofit.Builder builder = new Retrofit.Builder()
.baseUrl("https://intense-lake-39874.herokuapp.com")
.addConverterFactory(GsonConverterFactory.create())
.client(okhttpClientBuilder.build());
Retrofit retrofit = builder.build();
UserClient service = retrofit.create(UserClient.class);
Call<Usuarios> call = service.create(usuario);
call.enqueue(new Callback<Usuarios>() {
#Override
public void onResponse(Call<Usuarios> call, Response<Usuarios> response) {
Toast.makeText(Main2Activity.this,"Usuario Registrado! "+response.body().getMessage,Toast.LENGTH_SHORT).show();
}
#Override
public void onFailure(Call<Usuarios> call, Throwable t) {
Toast.makeText(Main2Activity.this,"Algo fallo..",Toast.LENGTH_SHORT).show();
}
});
}
So i can see the logcat response but in the body its appoint to null, how i can acces to the "message"?
This is the logcat

That error is because your response is not successful therefore you need to parse the error body, try with this code:
if (response.isSuccessful()) {
// Do your success stuff...
} else
{
try
{
JSONObject jObjError = new JSONObject(response.errorBody().string());
Toast.makeText(getContext(), jObjError.getString("message"), Toast.LENGTH_LONG).show();
} catch (Exception e) {
Toast.makeText(getContext(), e.getMessage(), Toast.LENGTH_LONG).show();
}
}
Of course that you can use another parser like Gson .

Get OAuth Token from Web API to android

I'm trying to get ِِOAuth token in android from my web api. I have tested the api in Postman and it's working perfect.
Screenshot for the successful call from Postman
now I need to call this Api from my android app using retrofit 2 to get the token, for that I tried to use the following interface but it's not working.
#FormUrlEncoded
#POST("/Token")
public Call<String> Token(#Field("grant_type") String grant_type, #Field("username") String username, #Field("password") String password);
How can I get this done?

In my case I using this below way to call Web Api in Android Application.
Note : I am using OkHttp library.
Create Token class
public class Token {
public String access_token;
public String token_type;
public int expires_in;
public Token(){
}
}
Now add OkHttp library jar to your Project.
for more detail visit this :
http://square.github.io/okhttp/
Now to get OAuth Token call this way
OkHttpClient client = new OkHttpClient();
Request.Builder builder = new Request.Builder();
builder.url(write your url here);
builder.addHeader("Content-Type", "application/x-www-form-urlencoded");
builder.addHeader("Accept", "application/json");
FormEncodingBuilder parameters = new FormEncodingBuilder();
parameters.add("grant_type", "password");
parameters.add("username", edituser);
parameters.add("password", editpassword);
builder.post(parameters.build());
try {
Response response = client.newCall(builder.build()).execute();
if (response.isSuccessful()) {
String json = response.body().string();
}
catch(Exception e){
// catch Exception here
}
finally in response you will get your Token.

Late but it might help someone
Interface class
#FormUrlEncoded
#POST("/Token")
void getTokenAccess(#Field("grant_type") String grantType, #Field("username") String username, #Field("password") String password, Callback<TokenResponse> callback);
TokenResponse class
public class TokenResponse {
private String access_token,token_type,expires_in,userName;
public String getAccess_token() {
return access_token;
}
public String getToken_type() {
return token_type;
}
public String getExpires_in() {
return expires_in;
}
public String getUserName() {
return userName;
}
}
I am using retrofit 1.9.0
RestAdapter adapter = new RestAdapter.Builder()
.setEndpoint(ENDPOINT_URL).setLogLevel(RestAdapter.LogLevel.FULL)
.build();
NetApi api = adapter.create(NetApi.class);
api.getTokenAccess("password", email, password, new Callback<TokenResponse>() {
#Override
public void success(TokenResponse tokenResponse, Response response) {
showProgress(false);
try{
MainActivity.tokenResponse = tokenResponse;
startActivity(new Intent(LoginActivity.this, MainActivity.class));
}catch (Exception e){
Toast.makeText(LoginActivity.this,"Unknown Error",Toast.LENGTH_LONG).show();
e.printStackTrace();
}
}
#Override
public void failure(RetrofitError error) {
Toast.makeText(LoginActivity.this,""+error.getMessage(),Toast.LENGTH_LONG).show();
showProgress(false);
}
});

Retrofit 2 - string error body is empty

Server returns JSON object in case of success and simple String for error case.
There are no problems with parsing JSON into object. The problem rises when I want to parse error since the response.errorBody().string() is empty.
When I send the same request using Postman the response as follows:
And I can't read this error... Anyone faced such problem?
Code code
gradle:
compile 'com.squareup.retrofit2:retrofit:2.0.0-beta4'
compile 'com.squareup.retrofit2:converter-gson:2.0.0-beta4'
compile 'com.squareup.okhttp:okhttp:2.6.0'
RestClient.java:
private static GitApiInterface gitApiInterface;
...
public static GitApiInterface getClient() {
if (gitApiInterface == null) {
OkHttpClient okClient = new OkHttpClient();
okClient.interceptors().add(new Interceptor() {
#Override
public Response intercept(Chain chain) throws IOException {
Response response = chain.proceed(chain.request());
return response;
}
});
Retrofit client = new Retrofit.Builder()
.baseUrl(URL_BASE)
.addConverterFactory(GsonConverterFactory.create())
.build();
gitApiInterface = client.create(GitApiInterface.class);
}
return gitApiInterface;
}
ApiInterface.java:
public interface ApiInterface {
#POST("/register/user/{email}/")
Call<User> postRegisterUser(#Path(value = "email", encoded = true) String email,
#Query("firstname") String firstName,
#Query("lastname") String lastName,
#Query("country") String country,
#Query("phone") String phone,
#Query("deviceid") String deviceId);
...
ServerRequests.java:
public void registerUser(#NonNull String email,
#NonNull String firstName,
#NonNull String lastName,
#NonNull String country,
#NonNull String phone,
#NonNull String deviceId,
#NonNull final RegisterUserCallback callback) {
showProgressBar();
RestClient.GitApiInterface service = RestClient.getClient();
Call<User> call = service.postRegisterUser(email, firstName, lastName, country, phone, deviceId);
call.enqueue(new Callback<User>() {
#Override
public void onResponse(Call<User> call, Response<User> response) {
hideProgressBar();
User user = response.body(); //this works great
if (response.isSuccess()) {
Log.d(TAG, "REGISTER success: " + response.message());
callback.onRegisteredUser(user);
} else {
try {
Log.e(TAG, "REGISTER fail: " + response.errorBody().string()); //empty error body
callback.onRegisterFailed(response.errorBody().string());
} catch (IOException e) {
e.printStackTrace();
}
}
}
#Override
public void onFailure(Call<User> call, Throwable t) {
hideProgressBar();
callback.onRegisterFailed("error");
}
});
}

My answer is based on HttpLoggingInterceptor class.
I wrote getStatusError() method by given in parameter response.errorBody().
private StatusError getStatusError(ResponseBody responseBody) {
StatusError statusError = null;
if (responseBody != null) {
try {
BufferedSource source = responseBody.source();
if (source != null) {
source.request(Long.MAX_VALUE); // Buffer the entire body.
Buffer buffer = source.buffer();
Charset charset = UTF8;
MediaType contentType = responseBody.contentType();
if (contentType != null) {
charset = contentType.charset(UTF8);
}
String string = buffer.clone().readString(charset);
if (!TextUtils.isEmpty(string)) {
GsonBuilder gsonBuilder = new GsonBuilder();
Gson gson = gsonBuilder.create();
statusError = gson.fromJson(string, StatusError.class);
}
}
} catch (Exception e) {
LogUtils.LOGW(TAG, "Impossible to get StatusError stream", e);
}
}
return statusError;
}
StatusError is a POJO class to map (JSON) elements:
public class StatusError {
#SerializedName("message")
public String message;
#SerializedName("errors")
public ArrayList<ErrorDetail> errors;
}

Retrofit 2 Raw JSON request using RequestBody

I use Retrofit 2 library, and I need to send POST JSON request like this:
{
"datetime": 0,
"body": {
"gymId": "17C1B14C-C21F-41EE-BF75-F0E7843DB638",
"customerName": "test",
"customerEmail": "test#test.ru",
"content": "test"
}
}
How i can send this request use RequestBody?
Call<ApiClubRequest> clubContact(#Body RequestBody requestBody);
Or can easily make such a request?
This is my interface class with OkHttp settings.
public class RestClient {
private static ClassApiInterface WordClassApiInterface ;
private static String baseUrl = "http://my adddress" ;
public static WorldClassApiInterface getClient() {
if (WordClassApiInterface == null) {
OkHttpClient okClient = new OkHttpClient();
okClient.interceptors().add(new Interceptor() {
#Override
public Response intercept(Chain chain) throws IOException {
Response response = chain.proceed(chain.request());
return response;
}
});
Retrofit client = new Retrofit.Builder()
.baseUrl(baseUrl)
.client(okClient)
.addConverterFactory(GsonConverterFactory.create())
.build();
ApiInterface = client.create(ApiInterface.class);
}
return ClassApiInterface ;
}
public static Call<ApiClubRequest> clubcontact(String gymId, String customerName, String
customerEmail, String content){
ClubContactRequest request = new ClubContactRequest();
request.gymId = gymId;
request.customerName = customerName;
request.customerEmail = customerEmail;
request.content = content;
return ApiInterface.clubContact(request);
}
#Headers("Content-Type: application/json")
#POST("/hotline")
Call<ApiClubRequest> clubContact(#Body ClubContactRequest requestBody);
}
}

Create a request class and create fields with the same name as in the JSON:
public class ClubContactRequest {
public String gymId;
public String customerName;
public String customerEmail;
public String content;
}
Modify the POST #Body:
Call<ApiClubRequest> clubContact(#Body ClubContactRequest requestBody);
Then implement the request:
public Call<ApiClubRequest> clubcontact(String gymId, String customerName, String customerEmail, String content){
ClubContactRequest request = new ClubContactRequest();
request.gymId = gymId;
request.customerName = customerName;
request.customerEmail = customerEmail;
request.content = content;
return yourApiInterface.clubContact(request);
}