Can I test real response from retrofit2beta4? Do i need Mockito or Robolectic?

I don&#39;t have activities in my project, it will be a library and I need to test is server responding correctly.
Now I have such code and stuck...

    @Mock
    ApiManager apiManager;

    @Captor
    private ArgumentCaptor&lt;ApiCallback&lt;Void&gt;&gt; cb;

    @Before
    public void setUp() throws Exception {
        apiManager = ApiManager.getInstance();
        MockitoAnnotations.initMocks(this);
    }

    @Test
    public void test_login() {
        Mockito.verify(apiManager)
               .loginUser(Mockito.eq(login), Mockito.eq(pass), cb.capture());
        // cb.getValue();
        // assertEquals(cb.getValue().isError(), false);
    }


I can make fake response, but I need to test real. Is it success? Is it&#39;s body correct?
Can you help me with code?

Android Unit Test with Retrofit2 and Mockito or Robolectric

My problem is that **I don&#39;t know how to start using Retrofit 2.0 with received API** - mentioned below...

Firstly, I need to username, password, fbID (optional), gmailID (optional), twitID (optional), gender, birthDate, location (not required - if long and lat has values), longitude (optional), latitude (optional), profileImage (optional).

When all parameters are good - receive `status = true`. 
If not - receive `status = false` and required parameters which are wrong (e.g. mail is already taken)

So I can receive 
`status = true` 
or 
`status = false` and array with max 5 parameters (username, email, password, gender, birthDate).

I tried this `API Interface`:

    public interface AuthRegisterUserApi {
        @PUT()
        Call&lt;AuthRegisterUserModel&gt; getStatus(
                @Field(&quot;username&quot;) String username,
                @Field(&quot;email&quot;) String email,
                @Field(&quot;password&quot;) String password,
                @Field(&quot;fbID&quot;) String fbID,
                @Field(&quot;gmailID&quot;) String gmailID,
                @Field(&quot;twitID&quot;) String twitID,
                @Field(&quot;gender&quot;) String gender,
                @Field(&quot;birthDate&quot;) String birthDate,
                @Field(&quot;location&quot;) String location,
                @Field(&quot;longitude&quot;) String longitude,
                @Field(&quot;latitude&quot;) String latitude,
                @Field(&quot;profileImage&quot;) String profileImage
                );
    
        class Factory {
            private static AuthRegisterUserApi service;
    
            public static AuthRegisterUserApi getInstance() {
                Retrofit retrofit = new Retrofit.Builder()
                        .baseUrl(ApiConstants.REGISTER_URL)
                        .addConverterFactory(GsonConverterFactory.create())
                        .build();
    
                service = retrofit.create(AuthRegisterUserApi.class);
    
                return service;
            }
        }
    }

[with this API models (Pastebin.com)][1]

and this code in `Activity`:

    AuthRegisterUserApi.Factory.getInstance()
            .getStatus(
                    usernameEditText.getText().toString(),
                    emailEditText.getText().toString(),
                    passwordEditText.getText().toString(),
                    &quot;&quot;, &quot;&quot;, &quot;&quot;,
                    (maleRadioButton.isChecked() ? &quot;male&quot; : &quot;female&quot;),
                    mYear + &quot;-&quot; + mMonth+1 + &quot;-&quot; + mDay,
                    (geoLocationToggleButton.isChecked() ? geoLocationEditText.getText().toString() : &quot;&quot;),
                    (!geoLocationToggleButton.isChecked() ? &quot;50&quot; : &quot;&quot;),
                    (!geoLocationToggleButton.isChecked() ? &quot;50&quot; : &quot;&quot;),
                    &quot;&quot;)
            .enqueue(new Callback&lt;AuthRegisterUserModel&gt;() {
        @Override
        public void onResponse(Call&lt;AuthRegisterUserModel&gt; call, Response&lt;AuthRegisterUserModel&gt; response) {
            if(response.isSuccessful()) {
                if (response.body().isStatus()) {
                    showToast(getApplicationContext(), &quot;Registration ok.&quot;);
                } else {
                    response.body().getInfo().getUsername();
                }
            }
        }
    
        @Override
        public void onFailure(Call&lt;AuthRegisterUserModel&gt; call, Throwable t) {
    
        }
    });

I have error: `java.lang.IllegalArgumentException: @Field parameters can only be used with form encoding. (parameter #1) for method AuthRegisterUserApi.getStatus`

I tried to register user using Postman and it works when I used option `Body` -&gt; `x-www-form-urlencoded`.

**How can I create I `register` query to this API?** Change `@Field` to something else? I have got this error always...

**EDIT: Need to change `API Interface` to this**:

    public interface AuthRegisterUserApi {
        @FormUrlEncoded
        @PUT(&quot;/api/register&quot;)
        Call&lt;AuthRegisterUserModel&gt; getStatus(
                @Field(&quot;username&quot;) String username,
                @Field(&quot;email&quot;) String email,
                @Field(&quot;password&quot;) String password,
                @Field(&quot;fbID&quot;) String fbID,
                @Field(&quot;gmailID&quot;) String gmailID,
                @Field(&quot;twitID&quot;) String twitID,
                @Field(&quot;gender&quot;) String gender,
                @Field(&quot;birthDate&quot;) String birthDate,
                @Field(&quot;location&quot;) String location,
                @Field(&quot;longitude&quot;) String longitude,
                @Field(&quot;latitude&quot;) String latitude,
                @Field(&quot;profileImage&quot;) String profileImage
                );
    
        class Factory {
            private static AuthRegisterUserApi service;
    
            public static AuthRegisterUserApi getInstance() {
                Retrofit retrofit = new Retrofit.Builder()
                        .baseUrl(ApiConstants.BASE_URL)
                        .addConverterFactory(GsonConverterFactory.create())
                        .build();
    
                service = retrofit.create(AuthRegisterUserApi.class);
    
                return service;
            }
        }
    }

`BASE_URL = http://ip_address:8400` for me...

But still got error: `Response.rawResponse = Response{protocol=http/1.1, code=400, message=Bad Request, url=http://ip_address:8400/api/register}`. Using Postman with the same data I received code=201 Created. **Don&#39;t know why...**

  [1]: http://pastebin.com/7X5D0NjL

Retrofit 2.0 throwing &quot;IllegalArgumentException: @Field parameters can only be used with form encoding&quot;. How to do right API query and fix it?

I am working on Youtube API.
The base URL is `&lt;https://www.googleapis.com/youtube/v3/search/&gt;`

Request :GET

    https://www.googleapis.com/youtube/v3/search?part=snippet&amp;q={search_keyword}&amp;key={API_KEY}

ApiService Interface code-

    public interface ApiService {
        @GET(&quot;&quot;)
        Call&lt;YoutubeResponse&gt; searchVideos(@Query(&quot;part&quot;) String part,
                                       @Query(&quot;q&quot;) String q,@Query(&quot;key&quot;) String apiKey);
    }

The error: **java.lang.IllegalArgumentException: Missing either @GET URL or @Url parameter.**
in the line of code

    Call&lt;YoutubeResponse&gt; call=service.searchVideos(&quot;snippet&quot;,s, URLConstants.Youtube_API_KEY);

I&#39;m a beginner. Please help!

Retrofit error-Missing either @GET URL or @Url parameter

I&#39;m using `Retrofit2` library.

I already tried to update latest version : Retrofit2, Gson, Rxjava, OKHttp, HttpLoggingInterceptor ... in `build.gradle` file

`build.grade` in application
    
    dependencies {
    compile fileTree(dir: &#39;libs&#39;, include: [&#39;*.jar&#39;])
    androidTestCompile(&#39;com.android.support.test.espresso:espresso-core:2.2.2&#39;,         {
        exclude group: &#39;com.android.support&#39;, module: &#39;support-annotations&#39;
    })

    // Default - Android Component
    testCompile &#39;junit:junit:4.12&#39;
    compile &#39;com.android.support:design:24.2.1&#39;
    compile &#39;com.android.support:appcompat-v7:24.2.1&#39;

    // Retrofit2 + Gson
    compile &#39;com.squareup.retrofit2:retrofit:2.1.0&#39;
    compile &#39;com.google.code.gson:gson:2.6.2&#39;
    compile &#39;com.squareup.retrofit2:converter-gson:2.1.0&#39;
    compile &#39;com.squareup.retrofit2:adapter-rxjava:2.1.0&#39;
    compile &#39;com.squareup.okhttp3:logging-interceptor:3.3.0&#39;
    compile &#39;com.squareup.okhttp3:okhttp:3.4.1&#39;

    // RxJva
    compile &#39;io.reactivex:rxandroid:1.2.0&#39;
    compile &#39;io.reactivex:rxjava:1.1.4&#39;
    }

But I got error 

     &gt; Caused by: java.lang.NoClassDefFoundError: Failed resolution of: Lokhttp3/internal/Platform;
    at okhttp3.logging.HttpLoggingInterceptor$Logger$1.log(HttpLoggingInterceptor.java:112)
    at okhttp3.logging.HttpLoggingInterceptor.intercept(HttpLoggingInterceptor.java:160)
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:92)
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:67)
    at internal.NetworkModule$1.intercept(NetworkModule.java:150)

in below code

    Interceptor provideInterceptor(final Context context, final PreferenceStore preferenceStore) {
        Interceptor headerAuthorizationInterceptor = new Interceptor() {
            @Override
            public okhttp3.Response intercept(Interceptor.Chain chain) throws IOException {
                // Get Android ID
                String android_id = Settings.Secure.getString(context.getContentResolver(),
                        Settings.Secure.ANDROID_ID);

                // Get Application Version
                String appVersion = &quot;&quot;;
                try {
                    PackageInfo packageInfo = context.getPackageManager().getPackageInfo(context.getPackageName(), 0);
                    appVersion = packageInfo.versionName;
                } catch (PackageManager.NameNotFoundException e) {
                    Timber.e(&quot;Cannot get app version&quot;);
                }

                /**
                 * Add header with following attributes as agree with Web Server
                 * - Token
                 * - &quot;Android&quot;
                 * - Release version
                 * - Model
                 * - App version
                 * - Android ID
                 */
                String token = preferenceStore.getAuthToken();

                Timber.i(&quot;X-Asukabu-Token: %s&quot;, token);

                // Add header to request
                Request request = chain.request();
                if (token != null)
                    request.headers().newBuilder()
                            .add(&quot;X-Asukabu-Token&quot;, token)
                            .add(&quot;X-Asukabu-Client-OS&quot;, &quot;Android&quot;)
                            .add(&quot;X-Asukabu-Client-OS-Version&quot;, Build.VERSION.RELEASE)
                            .add(&quot;X-Asukabu-Client-Device&quot;, Build.MODEL)
                            .add(&quot;X-Asukabu-Client-App-Version&quot;, appVersion)
                            .add(&quot;X-Asukabu-Client-Device-ID&quot;, android_id)
                            .add(&quot;Accept&quot;,&quot;*/*&quot;)
                            .build();
                else
                    request.headers().newBuilder()
                            .add(&quot;X-Asukabu-Client-OS&quot;, &quot;Android&quot;)
                            .add(&quot;X-Asukabu-Client-OS-Version&quot;, Build.VERSION.RELEASE)
                            .add(&quot;X-Asukabu-Client-Device&quot;, Build.MODEL)
                            .add(&quot;X-Asukabu-Client-App-Version&quot;, appVersion)
                            .add(&quot;X-Asukabu-Client-Device-ID&quot;, android_id)
                            .add(&quot;Accept&quot;,&quot;*/*&quot;)
                            .build();

                // ERROR IN THIS LINE : LINE 150
                return chain.proceed(request);
            }
        };

        return headerAuthorizationInterceptor;
    }


`build.gradle` in Project :

    buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath &#39;com.android.tools.build:gradle:2.2.0-rc2&#39;

        // Dagger 2
        classpath &#39;com.neenbedankt.gradle.plugins:android-apt:1.8&#39;

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
    }

People who knows why I got this error?

Please tell me how to fix it,

Thank you,

NoClassDefFoundError: Failed resolution of: Lokhttp3/internal/Platform

What is the benefit of using Retrofit in combination with Rxjava?

Why is RxJava often used with Retrofit?

I am using kotlin coroutines for network request using extension method to call class in retrofit like this

    

    public suspend fun &lt;T : Any&gt; Call&lt;T&gt;.await(): T {

      return suspendCancellableCoroutine { continuation -&gt; 

        enqueue(object : Callback&lt;T&gt; {

            override fun onResponse(call: Call&lt;T&gt;?, response: Response&lt;T?&gt;) {
                if (response.isSuccessful) {
                    val body = response.body()
                    if (body == null) {
                        continuation.resumeWithException(
                                NullPointerException(&quot;Response body is null&quot;)
                        )
                    } else {
                        continuation.resume(body)
                    }
                } else {
                    continuation.resumeWithException(HttpException(response))
                }
            }

            override fun onFailure(call: Call&lt;T&gt;, t: Throwable) {
                // Don&#39;t bother with resuming the continuation if it is already cancelled.
                if (continuation.isCancelled) return
                continuation.resumeWithException(t)
            }
        })

          registerOnCompletion(continuation)
      }
    }


then from calling side i am using above method like this 

    private fun getArticles()  = launch(UI) {

        loading.value = true
        try {
            val networkResult = api.getArticle().await()
            articles.value =  networkResult

        }catch (e: Throwable){
            e.printStackTrace()
            message.value = e.message

        }finally {
            loading.value = false
        }

    }

i  want to exponential retry this api call in some case i.e (IOException) how can i achieve it ??


How to Exponential Backoff retry on kotlin coroutines

I am trying to consume an API using Retrofit and Jackson to deserialize. I am getting the onFailure error `No Creators, like default construct, exist): cannot deserialize from Object value (no delegate- or property-based Creator`.

No Creators, like default construct, exist): cannot deserialize from Object value (no delegate- or property-based Creator

I&#39;m using **Retrofit 2.0.0-beta1**.

In tests i have an alternate scenario and expect error HTTP 400

I would like to have `retrofit.Response&lt;MyError&gt; response`
but `response.body() == null`

MyError is not deserialised - i see it only here

    response.errorBody().string()

but it doesn&#39;t give me MyError as object

Retrofit 2.0 how to get deserialised error response.body

I am trying to do a HTTP POST to server using **Retrofit 2.0**


    MediaType MEDIA_TYPE_TEXT = MediaType.parse(&quot;text/plain&quot;);
    MediaType MEDIA_TYPE_IMAGE = MediaType.parse(&quot;image/*&quot;);
    
    ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
        imageBitmap.compress(Bitmap.CompressFormat.JPEG,90,byteArrayOutputStream);
    profilePictureByte = byteArrayOutputStream.toByteArray();
    
    Call&lt;APIResults&gt; call = ServiceAPI.updateProfile(
            RequestBody.create(MEDIA_TYPE_TEXT, emailString),
            RequestBody.create(MEDIA_TYPE_IMAGE, profilePictureByte));
    
    call.enqueue();


The server returns an error saying the file is not valid. 

This is weird because I have tried to upload the same file with the same format on iOS(using other library), but it uploads successfully.


I am wondering what is the proper way to upload an image using **Retrofit 2.0**?  

Should I save it to disk first before uploading?

P.S.: I have used retrofit for other Multipart request that does not include image and they completed successfully. The problem is when I am trying to include a byte to the body.

POST Multipart Form Data using Retrofit 2.0 including image

Recently I started using Retrofit 2 and I faced an issue with parsing empty response body. I have a server which responds only with http code without any content inside the response body.

How can I handle only meta information about server response (headers, status code etc)?

How can I handle empty response body with Retrofit 2?

I can&#39;t find relevant methods in the Retrofit API for logging complete request/response bodies. I
was expecting some help in the Profiler (but it only offers meta-data about response). I tried setting the log level in the Builder, but this doesn&#39;t help me either :

    RestAdapter adapter = (new RestAdapter.Builder()).
    				setEndpoint(baseUrl).
    				setRequestInterceptor(interceptor).
    				setProfiler(profiler).
    				setClient(client).
    				setExecutors(MyApplication.getWebServiceThreadPool()).
    				setLogLevel(LogLevel.FULL).
    				setLog(new RestAdapter.Log() {
    					@Override
    					public void log(String msg) {
    						Log.i(TAG, msg);
    					}
    				}).
    				build();


EDIT: This code is working now. I don&#39;t know why it wasn&#39;t working earlier. Possibly because I was using some older version of retrofit.

How to log request and response body with Retrofit-Android?

I&#39;m going to send a simple get method to my server(it is Rails app) and get the result using RxJava and Retrofit. The thing that I did is:

My interface:

&lt;!-- language: java --&gt;

    public interface ApiCall {
        String SERVICE_ENDPOINT = &quot;https://198.50.214.15&quot;;
        @GET(&quot;/api/post&quot;)
        io.reactivex.Observable&lt;Post&gt; getPost();
    }

My model is this:

&lt;!-- language: java --&gt;

    public class Post
    {
        @SerializedName(&quot;id&quot;)
        private String id;
        @SerializedName(&quot;body&quot;)
        private String body;
        @SerializedName(&quot;title&quot;)
        private String title;
    
        public String getId ()
        {
            return id;
        }
    
    
        public String getBody ()
        {
            return body;
        }
    
    
        public String getTitle ()
        {
            return title;
        }
    
    }

And this is what I did in my activity:

&lt;!-- language: java --&gt;

    public class Javax extends AppCompatActivity {
        RecyclerView rvListContainer;
        postAdapter postAdapter;
        List&lt;String&gt; messageList=new ArrayList&lt;&gt;();
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_javax);
    
            rvListContainer=(RecyclerView)findViewById(R.id.recyclerView);
            postAdapter=new postAdapter(messageList);
    
            rvListContainer.setAdapter(postAdapter);
        }
        @Override
        protected void onResume() {
            super.onResume();
            Retrofit retrofit=new Retrofit.Builder()
                    .addCallAdapterFactory(RxJavaCallAdapterFactory.create())
                    .addConverterFactory(GsonConverterFactory.create())
                    .baseUrl(&quot;https://198.50.214.15&quot;)
                    .build();
            ApiCall apiService=retrofit.create(ApiCall.class);
    
            Observable&lt;Post&gt; observable=apiService.getPost();
    
            observable.subscribeOn(Schedulers.newThread())
                    .observeOn(AndroidSchedulers.mainThread())
                    .subscribe(responseData -&gt; {
                        messageList.add(responseData.getTitle());
                        postAdapter.notifyDataSetChanged();
                    });
    
        }
    }

I don&#39;t know why I get this error which says I have problem with adapter. I also included the adapter into the gradle:

    E/AndroidRuntime: FATAL EXCEPTION: main
	Process: com.example.hussein.sqlitedatabase, PID: 19445
	java.lang.RuntimeException: Unable to resume activity {com.example.hussein.sqlitedatabase/com.example.hussein.sqlitedatabase.Javax}: java.lang.IllegalArgumentException: Unable to create call adapter for io.reactivex.Observable&lt;com.example.hussein.sqlitedatabase.Post&gt;
		for method ApiCall.getPost
		at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2964)
		at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:2993)
		at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2395)
		at android.app.ActivityThread.access$800(ActivityThread.java:151)
		at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1321)
		at android.os.Handler.dispatchMessage(Handler.java:110)
		at android.os.Looper.loop(Looper.java:193)
		at android.app.ActivityThread.main(ActivityThread.java:5292)
		at java.lang.reflect.Method.invokeNative(Native Method)
		at java.lang.reflect.Method.invoke(Method.java:515)
		at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:824)
		at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:640)
		at dalvik.system.NativeStart.main(Native Method)
	 Caused by: java.lang.IllegalArgumentException: Unable to create call adapter for io.reactivex.Observable&lt;com.example.hussein.sqlitedatabase.Post&gt;
		for method ApiCall.getPost
		at retrofit2.ServiceMethod$Builder.methodError(ServiceMethod.java:751)
		at retrofit2.ServiceMethod$Builder.createCallAdapter(ServiceMethod.java:236)
		at retrofit2.ServiceMethod$Builder.build(ServiceMethod.java:161)
		at retrofit2.Retrofit.loadServiceMethod(Retrofit.java:169)
		at retrofit2.Retrofit$1.invoke(Retrofit.java:146)
		at $Proxy0.getPost(Native Method)
		at com.example.hussein.sqlitedatabase.Javax.onResume(Javax.java:42)
		at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1197)
		at android.app.Activity.performResume(Activity.java:5343)
		at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2950)
			... 12 more
	 Caused by: java.lang.IllegalArgumentException: Could not locate call adapter for io.reactivex.Observable&lt;com.example.hussein.sqlitedatabase.Post&gt;.
	  Tried:
	   * retrofit2.adapter.rxjava.RxJavaCallAdapterFactory
	   * retrofit2.ExecutorCallAdapterFactory
		at retrofit2.Retrofit.nextCallAdapter(Retrofit.java:240)
		at retrofit2.Retrofit.callAdapter(Retrofit.java:204)
		at retrofit2.ServiceMethod$Builder.createCallAdapter(ServiceMethod.java:234)
			... 20 more

This is my Gradle dependency:

    dependencies {
        compile fileTree(dir: &#39;libs&#39;, include: [&#39;*.jar&#39;])
        androidTestCompile(&#39;com.android.support.test.espresso:espresso-core:2.2.2&#39;, {
            exclude group: &#39;com.android.support&#39;, module: &#39;support-annotations&#39;
        })
        compile &#39;com.android.support.constraint:constraint-layout:1.0.2&#39;
        compile &#39;com.android.support:appcompat-v7:25.3.1&#39;
        testCompile &#39;junit:junit:4.12&#39;
    
        compile &#39;com.squareup.retrofit2:retrofit:2.2.0&#39;
    
        compile &#39;com.android.support:recyclerview-v7:25.3.1&#39;
        compile &#39;com.android.support:design:25.3.1&#39;
    
        compile &#39;io.reactivex.rxjava2:rxandroid:2.0.1&#39;
        compile &#39;io.reactivex.rxjava2:rxjava:2.0.1&#39;
    
        compile &#39;com.jakewharton.retrofit:retrofit2-rxjava2-adapter:1.0.0&#39;
        compile &#39;com.squareup.retrofit2:adapter-rxjava:2.0.2&#39;
    
        compile &#39;com.squareup.retrofit2:converter-gson:2.0.0&#39;
    
        compile &#39;com.google.code.gson:gson:2.4&#39;
    
    }



Unable to create call adapter for io.reactivex.Observable

I&#39;am currently using `Retrofit 2` and i want to upload some photo at my server.
I know, that older version uses `TypedFile` class for uploading. And if we want to use progress bar with it we should override `writeTo` method in `TypedFile` class.

Is it possible to show progress when using `retrofit 2` library?

Is it possible to show progress bar when upload image via Retrofit 2?

I am using a query parameters to set the values needed by the Google Maps API.

The issue is I do not need the `&amp;` sign for the first query parameter.

    @GET(&quot;/maps/api/geocode/json?&quot;)
        Call&lt;JsonObject&gt; getLocationInfo(@Query(&quot;address&quot;) String zipCode,
                                                 @Query(&quot;sensor&quot;) boolean sensor,
                                                 @Query(&quot;client&quot;) String client,
                                                 @Query(&quot;signature&quot;) String signature);

Retrofit generates: 

    &amp;address=90210&amp;sensor=false&amp;client=gme-client&amp;signature=signkey

which causes the call the fail when I need it to be

    address=90210&amp;sensor=false&amp;client=gme-client&amp;signature=signkey

How do I fix this?

Retrofit 2 - URL Query Parameter

I am new to retrofit 2 library.I read several articles to get started as a beginner and I managed to fetch XML data from my RESTful API without specifying parameters.In my method that generated the XML resource is below. 

	@GET
	@Path(&quot;/foods&quot;)
	@Produces(MediaType.APPLICATION_XML)
	public List&lt;FoodPyramid&gt; getFoodPyramid() {
		Session session = HibernateUtil.getSessionFactory().openSession();
		trans = session.beginTransaction();
		List&lt;FoodPyramid&gt; foodList = session.createQuery(&quot;from FoodPyramid&quot;).list();
		try {
		    trans.commit();
		    session.close();
		} catch (Exception e) {
		    session.close();
		    System.err.println(&quot;Food Pyramid fetch &quot; + e);
		}
		System.err.println(&quot;Am in the food modal. . . . . . . .&quot;);
		return foodList;
	}

 Now when I tried to pass parameter in the interface

    @GET(&quot;user/{username}/{password}&quot;)
    Call&lt;List&lt;UserCredentail&gt;&gt; getUserOuth(@Query(&quot;username&quot;) String username, @Query(&quot;password&quot;) String password);  

It failed to run,no data was receive by a client . It took me a week trying to fix it though by using a non parameter call fetched the resources;
So tried to change it to:  

    @GET(&quot;user/{username}/{password}&quot;)
    Call&lt;List&lt;UserCredentail&gt;&gt; getUserOuth(@Path(&quot;username&quot;) String username, @Path(&quot;password&quot;) String password);  

and it worked fine. So My question is: When do I need to use `@Query` and `@Path` Annotation in retrofit 2?


retrofit 2 @path Vs @query

I have an image of postman like below. How can I do the same thing in Retrofit 2?

[![Enter image description here][1]][1]

I&#39;ve declared the interface like this:

    @Multipart
    @POST(&quot;/api/Pharmarcy/UploadImage&quot;)
    Call&lt;ResponseBody&gt; uploadPrescriptionImage(
            @Query(&quot;accessToken&quot;) String token,
            @Query(&quot;pharmarcyRequestId&quot;) int pharmacyRequestedId,
            @Part MultipartBody.Part image);

  [1]: http://i.stack.imgur.com/QWLb0.png




How to upload an image file in Retrofit 2

I know this is not the first time someone asking about this problem but with Retrofit2 I can&#39;t find the right solution to my problem. I followed a online tutorial and it worked just fine. When I applied same code to my own endpoint i get this exception: `java.lang.IllegalStateException: Expected BEGIN_ARRAY but was BEGIN_OBJECT at line 1 column 2 path $` I don&#39;t know how to solve this.

Interface:

    public interface MyApiService {

    // Is this right place to add these headers?
    @Headers({&quot;application-id: MY-APPLICATION-ID&quot;,
            &quot;secret-key: MY-SECRET-KEY&quot;,
            &quot;application-type: REST&quot;})
    @GET(&quot;Music&quot;)
    Call&lt;List&lt;Music&gt;&gt; getMusicList();



    Retrofit retrofit = new Retrofit.Builder()
            .baseUrl(MySettings.REST_END_POINT)
            .addConverterFactory(GsonConverterFactory.create())
            .build();
    }

Client code:

    MyApiService service = MyApiService.retrofit.create(MyApiService.class);
    Call&lt;List&lt;Music&gt;&gt; call = service.getMusicList();
    call.enqueue(new Callback&lt;List&lt;Music&gt;&gt;() {

        @Override
        public void onResponse(Call&lt;List&lt;Music&gt;&gt; call, Response&lt;List&lt;Music&gt;&gt; response) {
            Log.e(&quot;MainActivity&quot;, response.body().
        }

        @Override
        public void onFailure(Call&lt;List&lt;Music&gt;&gt; call, Throwable t) {
            Log.e(&quot;MainActivity&quot;, t.toString());
        }
    });

This code working with this payload:

    [
    {
        &quot;login&quot;: &quot;JakeWharton&quot;,
        &quot;id&quot;: 66577,
        &quot;avatar_url&quot;: &quot;https://avatars.githubusercontent.com/u/66577?v=3&quot;,
        &quot;gravatar_id&quot;: &quot;&quot;,
        &quot;url&quot;: &quot;https://api.github.com/users/JakeWharton&quot;,
        &quot;html_url&quot;: &quot;https://github.com/JakeWharton&quot;,
        &quot;followers_url&quot;: &quot;https://api.github.com/users/JakeWharton/followers&quot;,
        &quot;following_url&quot;: &quot;https://api.github.com/users/JakeWharton/following{/other_user}&quot;,
        &quot;gists_url&quot;: &quot;https://api.github.com/users/JakeWharton/gists{/gist_id}&quot;,
        &quot;starred_url&quot;: &quot;https://api.github.com/users/JakeWharton/starred{/owner}{/repo}&quot;,
        &quot;subscriptions_url&quot;: &quot;https://api.github.com/users/JakeWharton/subscriptions&quot;,
        &quot;organizations_url&quot;: &quot;https://api.github.com/users/JakeWharton/orgs&quot;,
        &quot;repos_url&quot;: &quot;https://api.github.com/users/JakeWharton/repos&quot;,
        &quot;events_url&quot;: &quot;https://api.github.com/users/JakeWharton/events{/privacy}&quot;,
        &quot;received_events_url&quot;: &quot;https://api.github.com/users/JakeWharton/received_events&quot;,
        &quot;type&quot;: &quot;User&quot;,
        &quot;site_admin&quot;: false,
        &quot;contributions&quot;: 741
    },
    {....

but not with this one:

    {
    &quot;offset&quot;: 0,
    &quot;data&quot;: [
        {
            &quot;filename&quot;: &quot;E743_1458662837071.mp3&quot;,
            &quot;created&quot;: 1458662854000,
            &quot;publicUrl&quot;: &quot;https://api.backendless.com/dbb77803-1ab8-b994-ffd8-65470fa62b00/v1/files/music/E743_1458662837071.mp3&quot;,
            &quot;___class&quot;: &quot;Music&quot;,
            &quot;description&quot;: &quot;&quot;,
            &quot;likeCount&quot;: 0,
            &quot;title&quot;: &quot;hej Susanne. &quot;,
            &quot;ownerId&quot;: &quot;E743756F-E114-6892-FFE9-BCC8C072E800&quot;,
            &quot;updated&quot;: null,
            &quot;objectId&quot;: &quot;DDD8CB3D-ED66-0D6F-FFA5-B14543ABC800&quot;,
            &quot;__meta&quot;: &quot;{\&quot;relationRemovalIds\&quot;:{},\&quot;selectedProperties\&quot;:[\&quot;filename\&quot;,\&quot;created\&quot;,\&quot;publicUrl\&quot;,\&quot;___class\&quot;,\&quot;description\&quot;,\&quot;likeCount\&quot;,\&quot;title\&quot;,\&quot;ownerId\&quot;,\&quot;updated\&quot;,\&quot;objectId\&quot;],\&quot;relatedObjects\&quot;:{}}&quot;
        },
        {...

My Music class:

    public class Music {

       private String ownerId;
       private String filename;
       private String title;
       private String description;
       private String publicUrl;
       private int likeCount;
 
       // Getters &amp; Setters

    }

Retrofit2 Android: Expected BEGIN_ARRAY but was BEGIN_OBJECT at line 1 column 2 path $

I&#39;m trying to perform a login action using Retrofit 2.0 using Dagger 2

Here&#39;s how I set up Retrofit dependency

    @Provides
    @Singleton
    Retrofit provideRetrofit(Gson gson, OkHttpClient client) {
        Retrofit retrofit = new Retrofit.Builder()
                                .addConverterFactory(GsonConverterFactory.create(gson)
                                .client(client)
                                .baseUrl(application.getUrl())
                                .build();
        return retrofit;     
    }

Here&#39;s the API interface.

    interface LoginAPI {
       @GET(relative_path)
       Call&lt;Boolean&gt; logMe();
    }

I have three different base urls users can log into. So I can&#39;t set a static url while setting up Retrofit dependency. I created a setUrl() and getUrl() methods on Application class. Upon user login, I set the url onto Application before invoking the API call. 

I use lazy injection for retrofit like this

    Lazy&lt;Retrofit&gt; retrofit

That way, Dagger injects dependency only when I can call

    retrofit.get()

This part works well. I got the url set to retrofit dependency. However, the problem arises when the user types in a wrong base url (say, mywifi.domain.com), understands it&#39;s the wrong one and changes it(say to mydata.domain.com). Since Dagger already created the dependency for retrofit, it won&#39;t do again.
So I have to reopen the app and type in the correct url.

I read different posts for setting up dynamic urls on Retrofit using Dagger. Nothing really worked out well in my case. Do I miss anything? 

Set dynamic base url using Retrofit 2.0 and Dagger 2

I want to get string json from my api using retrofit 2, I have no problem when using retrofit 1 to get this json but using retrofit 2 returns **null** for me.

This is what my json looks like

    {&quot;id&quot;:1,&quot;Username&quot;:&quot;admin&quot;,&quot;Level&quot;:&quot;Administrator&quot;}

This is my API

    @FormUrlEncoded
    @POST(&quot;/api/level&quot;)
    Call&lt;ResponseBody&gt; checkLevel(@Field(&quot;id&quot;) int id);

This is how my code looks like

    Retrofit retrofit = new Retrofit.Builder()
                    .baseUrl(Config.BASE_URL)
                    .addConverterFactory(GsonConverterFactory.create())
                    .build();
            Api api = retrofit.create(Api.class);
            Call&lt;ResponseBody&gt; call = api.checkLevel(1);
            call.enqueue(new Callback&lt;ResponseBody&gt;() {
                @Override
                public void onResponse(Call&lt;ResponseBody&gt; call, Response&lt;ResponseBody&gt; response) {
                    JsonObject post = new JsonObject().get(response.body().toString()).getAsJsonObject();
                        if (post.get(&quot;Level&quot;).getAsString().contains(&quot;Administrator&quot;)) {
    
                        }
                }
    
                @Override
                public void onFailure(Call&lt;ResponseBody&gt; call, Throwable t) {
                }
            });

I&#39;m new to retrofit 2 and using above code, it always make my apps crash because `response.body().toString()` returns null.

Please guide me on how to get that json string so I can convert it into JsonObject.

Retrofit 2: Get JSON from Response body

I called **PATCH** web service  using Retrofit2 but **onResponse** is not called and the **onFailure** is called **Despite of** the operation of the service is succeeded on the server side **perfectly**  

And whenever,I tried to use fiddler to check the service its working , i found the problem is that serializing the coming response of the service and when using fiddler i found that no content of the JSON response so the Retrofit service assumed that its failed because there is no content and it cannot serialize the EMPTY content 
and give me this error

    java.io.EOFException: End of input at line 1 column 1

**Fiddler raw Response**

    HTTP/1.1 200 OK
    Server: nginx/1.9.4
    Date: Wed, 02 Mar 2016 09:55:55 GMT
    Content-Type: application/json
    Content-Length: 0
    Connection: close
    Status: 200 OK
    X-Content-Type-Options: nosniff

**Fiddler Json Response is empty**

**webservice in java**

    Call&lt;Object&gt; call = TimeCapp.services.accept_invited_alerts(HomeActivity.api_token, alert_id);
    
    call.enqueue(new Callback&lt;Object&gt;()
    {
        @Override
        public void onResponse (Call&lt;Object&gt; call, Response&lt;Object&gt; response)
        {
            if (response.isSuccess()) {
                String x = response.body();
            }
        }
        @Override
        public void onFailure (Call&lt;Object&gt;call, Throwable t)
        {
            String x = t.getMessage();//java.io.EOFException: End of input at line 1 column 1
        }
    }

I tried to replace **object** with String,JsonObject,emptyCalssBody .... but its failed 

**the interface of the webservice**

    @PATCH(&quot;alerts/{alert_id}/accept&quot;)
    Call&lt;Object&gt; accept_invited_alerts(@Header(&quot;X-Api-Token&quot;) String  
    api_token, @Path(&quot;alert_id&quot;) int alert_id);

Retrofit2 error java.io.EOFException: End of input at line 1 column 1

I&#39;m trying to get the exact JSON that is being sent in the request. Here is my code:

&lt;!-- language: lang-java --&gt;

    OkHttpClient client = new OkHttpClient();
    client.interceptors().add(new Interceptor(){
       @Override public com.squareup.okhttp.Response intercept(Chain chain) throws IOException {
          Request request = chain.request();
          Log.e(String.format(&quot;\nrequest:\n%s\nheaders:\n%s&quot;,
                              request.body().toString(), request.headers()));
          com.squareup.okhttp.Response response = chain.proceed(request);
          return response;
       }
    });
    Retrofit retrofit = new Retrofit.Builder()
       .baseUrl(API_URL)
       .addConverterFactory(GsonConverterFactory.create())
       .client(client).build();

But I only see this in the logs:

    request:
    com.squareup.okhttp.RequestBody$1@3ff4074d
    headers:
    Content-Type: application/vnd.ll.event.list+json

How am I supposed to do proper logging, given the removal of `setLog()` and `setLogLevel()` which we used to use with Retrofit 1?

Logging with Retrofit 2

current code:

    Retrofit retrofit = new Retrofit.Builder()
                      .baseUrl(Constant.BASEURL)
                      .addConverterFactory(GsonConverterFactory.create())
                      .build();

    APIService service = retrofit.create(APIService.class);

    Call&lt;ResponseWrap&gt; call = service.getNewsData();

    call.enqueue(new Callback&lt;ResponseWrap&gt;() {

      @Override
      public void onResponse(Call&lt;ResponseWrap&gt; call1, Response&lt;ResponseWrap&gt; response) {
        if (response.isSuccess()) {

            ResponseWrap finalRes = response.body();
            for(int i=0; i&lt;finalRes.getResponse().getResults().size(); ++i){
                String title = finalRes.getResponse().getResults().get(i).getWebTitle();
                News n = new News(titleCategory, title, null);
                newsList.add(n);
            }

            AdapterRecommendation adapter = new AdapterRecommendation(getApplicationContext(), newsList);
            listView.setAdapter(adapter);
            
        }
        else{
            Toast.makeText(getApplicationContext(), &quot;onResponse  - something wrong&quot; + response.message(), Toast.LENGTH_LONG).show();
        }
      }

      @Override
      public void onFailure(Call&lt;ResponseWrap&gt; call1, Throwable t) {
          Toast.makeText(getApplicationContext(), &quot;exception: &quot; + t.getMessage(), Toast.LENGTH_LONG).show();
      }
    });

works fine.

Now i want to make multiple calls (number of call will be decided at run time) and all calls gives data in same format. data from all calls needs to be add to newsList. Once data is available from all calls and added to newsList, call

    AdapterRecommendation adapter = new AdapterRecommendation(getApplicationContext(), newsList);
    listView.setAdapter(adapter);


Can anyone help me what is the best way to get data from multiple calls and wait until all request is not over in retrofit 2.0.




How to make multiple request and wait until data is come from all the requests in retrofit 2.0 - android

I am not able to get success response status code from response like 200,201.. etc. As we can easily get error codes from `RetrofitError` class like `error.isNetworkError()` and `error.getResponse().getStatus()`. Is there any workaround for getting status codes?

How to get Retrofit success response status codes

I am trying to add token based authentication via Retrofit 2.0-beta3 and OkHttpClient in Android using interceptors. But I get   UnsupportedOperationException when I add my interceptor in OkHttpClient.
Here is my code:
In ApiClient.java 
    
    public static TrequantApiInterface getClient(final String token) {
            if( sTreqantApiInterface == null) {
    
                Log.v(RETROFIT_LOG, &quot;Creating api client for the first time&quot;);
                OkHttpClient okClient = new OkHttpClient();
    
                okClient.interceptors().add(new Interceptor() {
                    @Override
                    public Response intercept(Interceptor.Chain chain) throws IOException {
                        Request original = chain.request();
    
                        // Request customization: add request headers
                        Request.Builder requestBuilder = original.newBuilder()
                                .header(&quot;Authorization&quot;, token)
                                .method(original.method(), original.body());
    
                        Request request = requestBuilder.build();
                        return chain.proceed(request);
                    }
                });
    
                Retrofit client = new Retrofit.Builder()
                        .baseUrl(baseUrl)
                        .client(okClient)
                        .addConverterFactory(GsonConverterFactory.create())
                        .build();
                sTreqantApiInterface = client.create(TrequantApiInterface.class);
            }
            return sTreqantApiInterface;
        }
And I use it like: 

    private void ampFreqTest(){
        String token = getSharedPreferences(getString(R.string.preference_file_key), Context.MODE_PRIVATE)
                            .getString(getString(R.string.key_token), &quot;&quot;);
    
        service = ApiClient.getClient(token);
        //I get an exception on this line:
        Call&lt;List&lt;AmpFreq&gt;&gt; call = service.getUserAmpFreq(&quot;1&quot;);
        call.enqueue(new Callback&lt;List&lt;AmpFreq&gt;&gt;() {
            @Override
            public void onResponse(Response&lt;List&lt;AmpFreq&gt;&gt; response) {
                Toast.makeText(HomeScreen.this, &quot;Got result&quot;, Toast.LENGTH_LONG);
    
                Log.v(ApiClient.RETROFIT_LOG, &quot;Success api client.&quot; + response.message());
                Log.v(ApiClient.RETROFIT_LOG, &quot;Success api client.&quot;);
            }
            @Override
            public void onFailure(Throwable t) {
                Toast.makeText(HomeScreen.this, t.getMessage() , Toast.LENGTH_LONG);
                Log.v(ApiClient.RETROFIT_LOG, &quot;Fail api client.&quot; + t.getMessage() );
            }
        });
    }

But I get this error:

    Process: com.trequant.usman.trequant_android, PID: 14400
    java.lang.UnsupportedOperationException at java.util.Collections$UnmodifiableCollection.add(Collections.java:932)
     at com.trequant.usman.trequant_android.api.ApiClient.getClient(ApiClient.java:41)

It gives me error on adding a new interceptor saying that it is not modifiableCollection but the documentation for interceptors() function says: /**

       * Returns a modifiable list of interceptors that observe the full span of each call: from before
       * the connection is established (if any) until after the response source is selected (either the
       * origin server, cache, or both).
       */
What am I doing wrong? Could it be a bug? 



Unsupported operation: Android, Retrofit, OkHttp. Adding interceptor in OkHttpClient

I am doing android, looking for a way to do a super basic http GET/POST request. I keep getting an error:

    java.lang.IllegalArgumentException: Unable to create converter for class java.lang.String



Webservice:

    public interface WebService {
        @GET(&quot;/projects&quot;)
        Call&lt;String&gt; jquery();
    }


then in my java:

        Retrofit retrofit = new Retrofit.Builder()
            .baseUrl(&quot;https://jquery.org&quot;)
           // .addConverterFactory(GsonConverterFactory.create())
            .build();

        WebService service = retrofit.create(WebService.class);
        Call&lt;String&gt; signin = service.jquery();

        Toast.makeText(this, signin.toString(), Toast.LENGTH_LONG).show();



I&#39;m literally just trying to query jquery.org/projects with a GET request and return the String that it responds with. What is wrong?

If I try to implement a custom Converter (I&#39;ve found a few examples online) it complains that I didn&#39;t implement the abstract method convert(F), which none of the examples do.

Thanks.

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