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How i change the retrofit URL at runtime

I need change the URL base in retrofit, i'm using koin to create a retrofit module on app startup and i want change this url in runtime.
I already tried change the baseUrl("http://192.168.192.168/") to baseUrl("http://")and change the url on retrofit call but my app crashs and return illegal URL error.
This is my fun to create the builder
fun createRetrofit(okHttpClient: OkHttpClient): Retrofit {
return Retrofit.Builder()
.baseUrl("http://192.168.192.168/")//i need change this at runtime
.client(okHttpClient)
.addConverterFactory(GsonConverterFactory.create()) .addCallAdapterFactory(RxJava2CallAdapterFactory.create())
.build()
}
create a bean to my module
val retrofitModule: Module = applicationContext {
bean { createRetrofit(get()) }
}
and start the koin:
startKoin(application = this,
modules = listOf(retrofitModule, ...)
)
someone can i help me with this?

you must have to add these lines in your code:
First Step:
Add the new CallAdapter RxJavaCallAdapterFactory.create() when building a Retrofit instance.
public static final String BASE_URL = "http://google.com/";
public static Retrofit getClient(String baseUrl) {
if (retrofit==null) {
retrofit = new Retrofit.Builder()
.baseUrl(baseUrl)
.addCallAdapterFactory(RxJavaCallAdapterFactory.create())
.addConverterFactory(GsonConverterFactory.create())
.build();
}
return retrofit;
}
Next step:
Update the APIService for example:-> savePost(String title, String body, String userId) method to become an Observable.
public interface APIService {
#GET
Call<ResponseBody> list(#Url String url);
//or
#POST("/posts")
#FormUrlEncoded
Observable<Post> savePost(#Field("title") String title,
#Field("body") String body,
#Field("userId") long userId);
}
Final step:
When making the requests, our anonymous subscriber responds to the observable's stream which emits event.
public void sendPost(String title, String body) {
// RxJava
mAPIService.savePost(title, body, 1).subscribeOn(Schedulers.io()).observeOn(AndroidSchedulers.mainThread())
.subscribe(new Subscriber<Post>() {
#Override
public void onCompleted() {
}
#Override
public void onError(Throwable e) {
}
#Override
public void onNext(Post post) {
showResponse(post.toString());
}
});
}
this is way you build your dynamic urls: want to learn more details full description link: Sending Data With Retrofit 2 HTTP Client for Android
and See base URL for details of how the value will be resolved against a base URL to create the full endpoint URL.
if you are doing using kotlin: follow this link. dynamic urls at Runtime with Retrofit 2

I already tried change the baseUrl("http://192.168.192.168/") to baseUrl("http://")and change the url on retrofit call but my app crashs and return illegal URL error.
You can leave it as a baseUrl if you use #URL it will overwrite the one on yout Retrofit.Builder()
You can use #URL parameter to change the endpoint dynamically.
#GET
fun getUsers(#Url String url) : Observable<UserResponse>

Retrofit is not making api call

I'm using retrofit 2 to make api call to my server but it get stucked when trying to make api call. This is my code
public interface GOTApi {
#GET("characters.json")
Call<GOTCharacterResponse> getCharacters();
}
Intermediate class to get the data
public class GOTCharacterResponse {
List<GOTCharacter> characters;
}
My class to make api call
public class GOTService {
public static final String BASE_URL = "https://project-8424324399725905479.firebaseio.com/";
public static GOTApi getGOTApi(){
Retrofit retrofit = new Retrofit.Builder()
.baseUrl(BASE_URL)
.addConverterFactory(GsonConverterFactory.create())
.build();
return retrofit.create(GOTApi.class);
}
public static void getCharacters(){
getGOTApi().getCharacters().enqueue(new Callback<GOTCharacterResponse>() {
#Override
public void onResponse(Call<GOTCharacterResponse> call, Response<GOTCharacterResponse> response) {
if(response.isSuccessful()){
}
}
#Override
public void onFailure(Call<GOTCharacterResponse> call, Throwable t) {
int a = 0;
}
});
}
}
These are the libraries I'm using
compile 'com.squareup.retrofit2:retrofit:2.0.2'
compile 'com.squareup.retrofit:converter-gson:2.0.0-beta2'
compile 'com.squareup.okhttp3:okhttp:3.3.1'
It always get stucked in the getCharacters() method. Of course I have internet permission set in Mainfest.

You may try using Retrofit2 with RxJava, it is more convenient.
public Retrofit providedRetrofit(OkHttpClient okHttpClient){
Retrofit retrofit = new Retrofit.Builder()
.baseUrl(BuildConfig.BASE_URL)
.client(okHttpClient)
.addConverterFactory(GsonConverterFactory.create())
.addCallAdapterFactory(RxJavaCallAdapterFactory.create())
.build();
return retrofit;
}
Your API interface will look like
public interface Api {
#GET("api/service/schedule/{filial}")
Observable<Response<GOTCharacter>> getSchedule(#Path("some_param") String param);
}
You also need to parse response from JSON. You didn't provided
GOTCharacter class, but you can create code from json response by using
http://www.jsonschema2pojo.org/ service

I think you are implementing wrong onResponse() OR Callback(), because I am using Retrofit 2 too, in which onResponse() looks like this:
#Override
public void onResponse(Response<ListJsonResponseRestaurant> response, Retrofit retrofit) {
...
...
}

Custom xml converter with Retrofit 2.0.2 is never called

I have to use retrofit 2.0.2 with xml api response. But my custom xml converter is never called.
Playing around with this I found out:
if I use Volley to parse the same response, the same custom xml converter IS called;
if I apply GsonConverterFactory to my RestClient and parse json response, my custom JsonAdapter (#JsonAdapter(SomeAdapter.class)) IS called.
Anyone, how make my simple xml converter to be called? Am I doing something wrong, or retrofit 2.0.2 somehow doesn't support simple xml converter.
My java class where I parse response:
import org.simpleframework.xml.Element;
import org.simpleframework.xml.convert.Convert;
public class PassengerResponse {
#Element
#Convert(value = SomeConverter.class)
private String id;
}
Custom xml converter that is never called:
import org.simpleframework.xml.convert.Converter;
import org.simpleframework.xml.stream.InputNode;
import org.simpleframework.xml.stream.OutputNode;
public class SomeConverter implements Converter<String> {
#Override
public String read(InputNode node) throws Exception {
return null;
}
#Override
public void write(OutputNode node, String value) throws Exception {
}
}
My retrofit RestClient:
import okhttp3.OkHttpClient;
import okhttp3.logging.HttpLoggingInterceptor;
import retrofit2.Retrofit;
import retrofit2.converter.simplexml.SimpleXmlConverterFactory;
public class RestClient2 {
private UserApiJSON userPassengerApi;
private static final int TIMEOUT = 120000;
private static RestClient2 INSTANCE;
public static RestClient2 getInstance() {
if (INSTANCE == null) {
INSTANCE = new RestClient2();
}
return INSTANCE;
}
private RestClient2() {
HttpLoggingInterceptor loggingInterceptor = new HttpLoggingInterceptor();
loggingInterceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
OkHttpClient okHttpClient = new OkHttpClient();
Retrofit retrofit = new Retrofit.Builder()
.baseUrl(BASE_URL)
.addConverterFactory(SimpleXmlConverterFactory.create())
.client(okHttpClient.newBuilder().connectTimeout(TIMEOUT, TimeUnit.MILLISECONDS)
.readTimeout(TIMEOUT, TimeUnit.MILLISECONDS)
.writeTimeout(TIMEOUT, TimeUnit.MILLISECONDS)
.addInterceptor(loggingInterceptor)
.build())
.build();
userPassengerApi = retrofit.create(UserApiJSON.class);
}
public UserApiJSON getUserPassengerApi() {
return userPassengerApi;
}
}

Actually SimpleXmlConverterFactory has different method to create its instance.) If all you need is to make your custom Converer(s) work, do the next:
Strategy strategy = new AnnotationStrategy();
Serializer serializer = new Persister(strategy);
Retrofit retrofit = new Retrofit.Builder().baseUrl(BASE_URL)
.addConverterFactory(SimpleXmlConverterFactory.create(serializer))
.client(okHttpClient.newBuilder().connectTimeout(TIMEOUT, TimeUnit.MILLISECONDS)
.readTimeout(TIMEOUT, TimeUnit.MILLISECONDS)
.writeTimeout(TIMEOUT, TimeUnit.MILLISECONDS)
.addInterceptor(loggingInterceptor).build())
.build();
Note: if you add different converters, order does metter. Why? Watch Jake Wharton presentation.

To use your custom converter you have create custom Converter.Factory. And than add it to the retrofit using method addConverterFactory(). Below working example:
public class StringConverterFactory extends Converter.Factory {
public static StringConverterFactory create() {
return new StringConverterFactory();
}
#Override
public Converter<ResponseBody, ?> responseBodyConverter(Type type, Annotation[] annotations, Retrofit retrofit) {
if (String.class.equals(type)) {
return new Converter<ResponseBody, String>() {
#Override
public String convert(ResponseBody value) throws IOException {
return value.string();
}
};
}
return null;
}
}
And than add it retrofit
Retrofit retrofit = new Retrofit.Builder()
.baseUrl(BASE_URL)
.addConverterFactory(SimpleXmlConverterFactory.create())
.addConverterFactory(StringConverterFactory.create())
.client(okHttpClient.newBuilder().connectTimeout(TIMEOUT, TimeUnit.MILLISECONDS)
.readTimeout(TIMEOUT, TimeUnit.MILLISECONDS)
.writeTimeout(TIMEOUT, TimeUnit.MILLISECONDS)
.addInterceptor(loggingInterceptor)
.build())
.build();
In Retrofit 2 allows multiple converters. There is video by Jake Wharton who talks about Retrofit 2 and it features like a multiple converters.
Inside Retrofit class there is a method nextRequestBodyConverter which returns converter for appropriate Type

public UsStatesApi providesApi(){
HttpLoggingInterceptor interceptor = new HttpLoggingInterceptor();
interceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
Strategy strategy = new AnnotationStrategy();
Serializer serializer = new Persister(strategy);
OkHttpClient okHttpClient = new OkHttpClient.Builder()
.addInterceptor(interceptor)
.connectTimeout(2, TimeUnit.MINUTES)
.writeTimeout(2, TimeUnit.MINUTES)
.readTimeout(2, TimeUnit.MINUTES)
.build();
Retrofit retrofit = new Retrofit.Builder()
.addConverterFactory(SimpleXmlConverterFactory.create(serializer))
.baseUrl("http://www.google.com")
.client(okHttpClient)
.build();
return retrofit.create( UsStatesApi.class);
}

IllegalArgumentException: Could not locate call adapter for rx.Observable RxJava, Retrofit2

I am getting the above error while calling the rest api. I am using both retrofit2 and RxJava.
ServiceFactory.java
public class ServiceFactory {
public static <T> T createRetrofitService(final Class<T> clazz, final String endpoint){
Retrofit retrofit = new Retrofit.Builder()
.baseUrl(endpoint)
//.addConverterFactory(GsonConverterFactory.create())
.build();
T service = retrofit.create(clazz);
return service;
}
}
MovieService.java
public interface MovieService{
//public final String API_KEY = "<apikey>";
public final String SERVICE_END = "https://api.mymovies.org/3/";
#GET("movie/{movieId}??api_key=xyz")
Observable<Response<Movies>> getMovies(#Field("movieId") int movieId);
}
Inside MainActivity
MovieService tmdbService = ServiceFactory.createRetrofitService(MovieService.class, MovieService.SERVICE_END);
Observable<Response<Movies>> responseObservable = tmdbService.getMovies(400);
responseObservable .subscribeOn(Schedulers.newThread())
.observeOn(AndroidSchedulers.mainThread())
.subscribe(new Subscriber<Response<Movies>>() {
#Override
public void onCompleted() {
}
#Override
public void onError(Throwable e) {
}
#Override
public void onNext(Response<Movies> moviesResponse) {
}
});

Be sure to add implementation 'com.squareup.retrofit2:adapter-rxjava2:2.4.0' or whatever version you are using to your dependencies, and then configure retrofit with that converter:
Retrofit retrofit = new Retrofit.Builder()
.baseUrl(endpoint)
.addConverterFactory(GsonConverterFactory.create())
.addCallAdapterFactory(RxJava2CallAdapterFactory.create())
.build();
Updated
RxJavaCallAdapterFactory was renamed to RxJava2CallAdapterFactory. Changed the snipped above.

For RxJava2 Use compile 'com.jakewharton.retrofit:retrofit2-rxjava2-adapter:1.0.0'
.addCallAdapterFactory(RxJava2CallAdapterFactory.create())
For more information on usage https://github.com/JakeWharton/retrofit2-rxjava2-adapter

you should have to use all Rx dependency of latest version , here i am using version 2 (like rxjava2)
implementation 'com.squareup.retrofit2:adapter-rxjava2:2.3.0'
implementation 'io.reactivex.rxjava2:rxandroid:2.0.2'
implementation 'io.reactivex.rxjava2:rxjava:2.1.9'
implementation 'com.squareup.retrofit2:adapter-rxjava2:2.3.0'
And add one more thing :
addCallAdapterFactory(RxJava2CallAdapterFactory.create())
in Retrofit Api client
like :
retrofit = new Retrofit.Builder()
.addCallAdapterFactory(RxJava2CallAdapterFactory.create())
.addConverterFactory(GsonConverterFactory.create())
.baseUrl(BASE_URL)
.build();

From the said Github project page:
Blockquote
This is now DEPRECATED!
Retrofit 2.2 and newer have a first-party call adapter for RxJava 2: https://github.com/square/retrofit/tree/master/retrofit-adapters/rxjava2
now you just need to include in your app/build.gradle file:
compile 'com.squareup.retrofit2:adapter-rxjava2:latest.version'

In my case, it was enough to replace
.addCallAdapterFactory(RxJavaCallAdapterFactory.create())
with
.addCallAdapterFactory(RxJava2CallAdapterFactory.create())

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