Sleepwalker Sleepwalker - 9 days ago 13
Android Question

Retrofit API call receives "HTTP FAILED: java.io.IOException: Canceled"

Can't figure out why is this happening. Neither one of rx callbacks (onCompleted(), onError(), onNext()) not gets triggered by my call. The only thing i receive is this okhttp output:

D/OkHttp: --> GET https://api.privatbank.ua/p24api/exchange_rates?json=true&date=20.11.2016 http/1.1
D/OkHttp: --> END GET
D/OkHttp: <-- HTTP FAILED: java.io.IOException: Canceled


Retrofit module:

@Module
public class RestModule {

@Provides
@Singleton
public HttpLoggingInterceptor providesHttpLogginInterceptor() {
return new HttpLoggingInterceptor().setLevel(HttpLoggingInterceptor.Level.BODY);
}

@Provides
@Singleton
public OkHttpClient providesOkHttpClient(@NonNull HttpLoggingInterceptor loggingInterceptor) {
return new OkHttpClient.Builder()
.addInterceptor(loggingInterceptor)
.connectTimeout(ConstantsManager.CONNECTION_TIME_OUT, TimeUnit.SECONDS)
.readTimeout(ConstantsManager.READ_TIME_OUT, TimeUnit.SECONDS)
.build();
}

@Provides
@Singleton
public Gson providesGson() {
return new GsonBuilder().create();
}

@Provides
@Singleton
public Retrofit providesRetrofit(@NonNull OkHttpClient okHttpClient, @NonNull Gson gson) {
return new Retrofit.Builder()
.baseUrl(ConstantsManager.BASE_URL)
.client(okHttpClient)
.addConverterFactory(SimpleXmlConverterFactory.create())
.addConverterFactory(GsonConverterFactory.create(gson))
.addCallAdapterFactory(RxJavaCallAdapterFactory.create())
.build();
}

@Provides
@Singleton
public PrivatbankApi providesPrivatbankApi(@NonNull Retrofit retrofit) {
return retrofit.create(PrivatbankApi.class);
}
}


API interface:

public interface PrivatbankApi {

@GET
Observable<CurrentRates> loadCurrentRates(@NonNull @Url String url);

@GET("exchange_rates")
Observable<DateRates> loadDateRates(@NonNull @Query("json") Boolean json, @NonNull @Query("date") String date);

}


Subscription:

subscription = dataManager.loadDateRates(date)
.subscribeOn(Schedulers.io())
.doAfterTerminate(() -> {
})
.subscribe(dateRates -> {
// My code here...
}, throwable -> {
Timber.e(throwable, "Error while loading data occurred!");
});


By the way, both of the calls gets the same error:

D/OkHttp: --> GET https://privat24.privatbank.ua/p24/accountorder?oper=prp&PUREXML&apicour&country=ua http/1.1
D/OkHttp: --> END GET
D/OkHttp: <-- HTTP FAILED: java.io.IOException: Canceled
D/OkHttp: --> GET https://api.privatbank.ua/p24api/exchange_rates?json=true&date=20.11.2016 http/1.1
D/OkHttp: --> END GET
D/OkHttp: <-- HTTP FAILED: java.io.IOException: Canceled

Answer

That exception gets thrown if the request is cancelled by the user. When using RxJavaCallAdapterFactory this happens if the subscription is unsubscribed before the call can complete. So I guess at some point after you do the call you do subscription.unsubscribe() which cancels the underlying requests.

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