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Retrofit add Okhttp interceptor no use

I found something strange when I add interceptor like this:
public ApiDefinition getService() {
OkHttpClient client = new OkHttpClient.Builder()
.addInterceptor(chain -> {
System.out.println("into interceptor");
Request request = chain.request();
return chain.proceed(request);
})
.build();
Retrofit retrofit = new Retrofit.Builder()
.baseUrl(UrlConfig.BASE_URL)
.addConverterFactory(GsonConverterFactory.create(gson))
.addCallAdapterFactory(RxJava2CallAdapterFactory.create())
.client(client)
.build();
return retrofit.create(ApiDefinition.class);
}
Then when I do call a network, nothing print just like the interceptor did't work.
Observable observable = apiDefinition.getResponse();
observable.subscribe(....)
I am confused, was there anything wrong?

apiDefinition.getResponse(); you forgetting to subscribe api call. Just getting observable, but not observing it.
apiDefinition
.getResponse()
.subscribe(.......);

if you want to intercept Network request call and print them in logcat
you can do so by adding an HttpLoggingInterceptor like that:
HttpLoggingInterceptor logging = new HttpLoggingInterceptor();
// set your desired log level
logging.setLevel(HttpLoggingInterceptor.Level.BODY);
OkHttpClient client = new OkHttpClient.Builder()
.addInterceptor(logging)
.build();

Sorry guys, i make some mistakes when i user dagger2 to inject ApiDefinition, so this is solved.

WebServices not working with retrofit but working properly in Postman

I have webservices hosted on server but I am using retrofit to fetch data from the server but When I am running my app it is showing exception Unresolve host but when I am using the same Url in Postman and browser it is working fine.I have also add Internet permission in app manifest file.
Below is my code:
RetrofitClient.java
public class RetrofitClient {
private static Retrofit retrofit = null;
public static Retrofit getInstance(){
OkHttpClient okHttpClient = new OkHttpClient.Builder()
.connectTimeout(22, TimeUnit.SECONDS)
.readTimeout(22, TimeUnit.SECONDS)
.writeTimeout(22, TimeUnit.SECONDS)
.build();
if(retrofit == null)
retrofit = new Retrofit.Builder()
.baseUrl("https://adbhutbharat.com/")
.addConverterFactory(GsonConverterFactory.create(new GsonBuilder().setLenient().create()))
.addCallAdapterFactory(RxJava2CallAdapterFactory.create())
.client(okHttpClient)
.build();
return retrofit;
}
}
ApiService.java
public interface ApiService {
#GET("app/getAgents.php")
Call<List<Agents>> allAgents();
}
The above endpoint is working properly in postman and browser but not when requesting using retrofit in android to fetch data.
Someone please let me know how to resolve this error any help would be appreciated.
THANKS

How do I set the number of concurrent requests when building an OkHttpClient?

Background
I am building a Retrofit client. As part of this client, I am also building an OkHttpClient within it. Below is the code I am speaking of:
public static final String BASE_URL = "https://api.darksky.net/forecast/<secret-key>/";
public static final OkHttpClient.Builder httpClient = new OkHttpClient.Builder().dispatcher()
private static Retrofit retrofit = null;
public static DarkSkyEndpoints getClient() {
if (retrofit == null) {
retrofit = new Retrofit.Builder()
.baseUrl(BASE_URL)
.addConverterFactory(GsonConverterFactory.create())
.client(httpClient.build())
.build();
}
DarkSkyEndpoints endpoints = retrofit.create(DarkSkyEndpoints.class);
return endpoints;
}
What I want
I want to build an OkHttpClient that only allows 1 concurrent thread at a time.
What I know
I know there is a method called dispatcher() that can be chained next to an OkHttpClient.Builder() as shown above.
I know that the Dispatcher class has a method setMaxRequests() that accomplishes exactly what I want to do.
What I don't know
How do I set the maximum number of concurrent threads when building an OkHttpClient for Retrofit?

You need create instance of Dispatcher class and pass it to dispatcher() method. Try something like this:
Dispatcher dispatcher = new Dispatcher();
dispatcher.setMaxRequests(MAX_REQUESTS_NUMBER);
public static final OkHttpClient httpClient = new
OkHttpClient.Builder().dispatcher(dispatcher).build();
....
retrofit = new Retrofit.Builder()
.baseUrl(BASE_URL)
.addConverterFactory(GsonConverterFactory.create())
.client(httpClient)
.build();

Retrofit 2 check call URL

Is there any possibility to compare a Call URL with a String in Retrofit 2?
For example we can take this baseUrl:
https://www.google.com
And this Call:
public interface ExampleService {
#GET("dummy/{examplePartialUrl}/")
Call<JsonObject> exampleList(#Path("examplePartialUrl") String examplePartialUrl;
}
with this request:
Call<JsonObject> mCall = dummyService.exampleList("partialDummy")
There's a way to obtain https://www.google.com/dummy/partialDummy or also dummy/partialDummy before getting the response from the call?

Assuming you're using OkHttp alongside Retrofit, you could do something like:
dummyService.exampleList("partialDummy").request().url().toString()
which according to the OkHttp docs should print:
https://www.google.com/dummy/partialDummy

Log.d(TAG, "onResponse: ConfigurationListener::"+call.request().url());

Personally I found another way to accomplish this by using retrofit 2 and RxJava
First you need to create an OkHttpClient object
private OkHttpClient provideOkHttpClient()
{
//this is the part where you will see all the logs of retrofit requests
//and responses
HttpLoggingInterceptor logging = new HttpLoggingInterceptor();
logging.setLevel(HttpLoggingInterceptor.Level.BODY);
return new OkHttpClient().newBuilder()
.connectTimeout(500, TimeUnit.MILLISECONDS)
.readTimeout(500,TimeUnit.MILLISECONDS)
.addInterceptor(logging)
.build();
}
after creating this object, the next step is just use it in retrofit builder
public Retrofit provideRetrofit(OkHttpClient client, GsonConverterFactory convertorFactory,RxJava2CallAdapterFactory adapterFactory)
{
return new Retrofit.Builder()
.baseUrl(mBaseUrl)
.addConverterFactory(convertorFactory)
.addCallAdapterFactory(adapterFactory)
.client(client)
.build();
}
one of the attributes you can assign to Retrofit builder is the client, set the client to the client from the first function.
After running this code you could search for OkHttp tag in the logcat and you will see the requests and responses you made.

Retrofit 2.0 beta 1 with whole URL

In retrofit 2.0 i want to use only one url .The url is same as base url as that of #GET in interface.I am facing the problem for getting the response.If Any one have better solution for using the whole url in #GET then please suggest the solution.
here is the code
public class RestClient {
private static ApiInterface apiInterface ;
private static String baseUrl = "here is my whole base url";
public static ApiInterface getClient() {
if (apiInterface == 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)
.addConverter(String.class, new ToStringConverter())
.client(okClient)
.addConverterFactory(GsonConverterFactory.create())
.build();
apiInterface = client.create(ApiInterface.class);
Log.e("RETROFIT RESPONCE IS...", client.toString());
}
return ApiInterface ;
}
public interface ApiInterface {
#Headers("User-Agent: Retrofit2.0Tutorial-App")
#GET("here is my whole base url”)
Call<EventResult> getEvent();
}
}

With retrofit 2 is possible to use the #Url annotation. Let's assume your Retrofit configuration is
Retrofit builder = new Retrofit.Builder()
.baseUrl("http://wwww.example.com")
.addConverterFactory(GsonConverterFactory.create())
.build();
Test r = builder.create(Test.class);
you declare your interface:
public interface Test {
#GET
Call<Example> getTest(#Url String url);
}
and for getTest you don't want to use the baseUrl you declared in the configuration. The #Url will ignore the baseUrl you declared and will use the one you provide as argument

I don't think it's possible since BaseURL is mandatory in Retrofit Builder and even you supply the builder with the full URL the builder will parse it and save only the BaseURL. I guess the reason why they do this is to keep it simple and consistent.
for reference you can see the source code here