I calling to the api with the basic retrofit Call object:
public interface dataApi {
#GET("animal/cats")
Call<AllAnimals> getAllData(
#Query("api_key") String apiKey
);
}
And I can get the response inside my view model like this:
call.enqueue(new Callback<AllAnimals>() {
#Override
public void onResponse(Call<AllAnimals> call, Response<AllAnimals> response) {
animals.setValue(response.body());
}
#Override
public void onFailure(Call<AllAnimals> call, Throwable t) {
Log.i(TAG, "onFailure: " + t);
}
});
Nothing speical here.
I've several problem with this approach
FIRST - if I give the wrong api key for example, the response should give me a response with the code of the problem, instead I just get null body.
SECOND I am planning to have more api calls, and it's a huge code duplication to handle errors every call I wrote.
How can I implement custom error handling for this situation, that will be apply to other calls too?
I think you can use okhttp interceptor and define yourself ResponseBody converter to fix your problem.
First,intercept you interested request and response;
Second,check the response,if response is failed then modify the response body to empty。
define a simple interceptor
Interceptor interceptor = new Interceptor() {
#Override
public okhttp3.Response intercept(Chain chain) throws IOException {
Request request = chain.request();
String url = request.url().toString();
System.out.println(request.url());
okhttp3.Response response = chain.proceed(request);
if (!response.isSuccessful() && url.contains("animal/cats")) {
// request failed begin to modify response body
response = response.newBuilder()
.body(ResponseBody.create(MediaType.parse("application/json"), new byte[] {}))
.build();
}
return response;
}
};
define self ResponseBody converter
most code from com.squareup.retrofit2:converter-jackson we just add two lines:
final class JacksonResponseBodyConverter<T> implements Converter<ResponseBody, T> {
private final ObjectReader adapter;
JacksonResponseBodyConverter(ObjectReader adapter) {
this.adapter = adapter;
}
#Override public T convert(ResponseBody value) throws IOException {
try {
if (value.contentLength() == 0) {
return null;
}
return adapter.readValue(value.charStream());
} finally {
value.close();
}
}
}
the below code is added：
if (value.contentLength() == 0) {
return null;
}
I need to send an array of Strings using a Retrofit call. To do that I decided to create an object like this one:
public class SendEmailsList {
ArrayList<String> emails;
public SendEmailsList(ArrayList<String> emails) {
this.emails = emails;
}
}
And my JSON String must be like this:
{
"emails": ["email#server.com","email1#server.com","email2#server.com"]
}
This is the POST method defined in my interface:
#POST("/v2/companies/{companyId}/invite")
Call<ArrayList<String>> inviteMembers(#Path("companyId") String companyId, #Body SendEmailsList emails);
And this is the method that makes the Retrofit call:
public void SendNetworkRequest() {
OkHttpClient.Builder okhttpBuilder = new OkHttpClient.Builder();
okhttpBuilder.addInterceptor(new Interceptor() {
#Override
public okhttp3.Response intercept(Chain chain) throws IOException {
Request request = chain.request();
Request.Builder newRequest = request.newBuilder().header("Authorization", "Bearer " + token);
return chain.proceed(newRequest.build());
}
});
Retrofit.Builder builder = new Retrofit.Builder()
.baseUrl(BuildConfig.ENDPOINT)
.client(okhttpBuilder.build())
.addConverterFactory(GsonConverterFactory.create());
Retrofit retrofit = builder.build();
CompanyService invite = retrofit.create(CompanyService.class);
Call<ArrayList<String>> call = invite.inviteMembers("5602eb7ce49c9cd70409f206", new SendEmailsList(invitedEmails));
call.enqueue(new Callback<ArrayList<String>>() {
#Override
public void onResponse(Call<ArrayList<String>> call, Response<ArrayList<String>> response) {
System.out.println("Internal Users: " + response.code());
}
#Override
public void onFailure(Call<ArrayList<String>> call, Throwable t) {
// Log error here since request failed
Log.e("Internal Users Activity", t.toString());
}
});
}
But I am getting this error:
12-21 14:36:49.953 27953-27953/com.construct.test E/Internal Users Activity: java.lang.IllegalStateException: Expected BEGIN_ARRAY but was BEGIN_OBJECT at line 1 column 2 path $
How can I figure out what is going on?
I have a situation where I need to return an "accepted" response for every request received and publish the actual response later to a separate endpoint outside the service.
To implement the 'accepted' Response I implemented a filter.
public class AcknowledgementFilter implements ContainerRequestFilter{
#Override
public void filter(ContainerRequestContext containerRequestContext) throws IOException {
containerRequestContext.abortWith(Response.accepted().build());
// call Resource method in new Thread() . <------ ?
}
}
Implementation of service endpoints:
#Path("/vendor")
public class VendorHandler {
#POST
public void addVendor(VendorRequest addVendorRequest)){
vendor = new Vendor();
Client.publish(vendor); // publish request to an endpoint
return null;
}
How do I call the addVendor of VendorHandler(or any method depends on request) from the acknowledgement filter?
Is there any other way to implement an accepted response for every request then process the request separately?
You can use AsyncResponse,
#GET
#ManagedAsync
#Produces(MediaType.APPLICATION_JSON)
public void getLives(#Suspended final AsyncResponse asyncResponse,
#DefaultValue("0") #QueryParam("newestid") final int newestId,
#QueryParam("oldestid") final Integer oldestId) {
asyncResponse.setTimeoutHandler(asyncResponse1 -> {
logger.info("reached timeout");
asyncResponse1.resume(Response.ok().build());
});
asyncResponse.setTimeout(5, TimeUnit.MINUTES);
try {
List<Life> lives = oldestId == null ?
Lifes.getLastLives(newestId) : Lifes.getOlderLives(oldestId);
if (lives.size() > 0) {
final GenericEntity<List<Life>> entity = new GenericEntity<List<Life>>(lives) {
};
asyncResponse.resume(entity);
} else LifeProvider.suspend(asyncResponse);
} catch (SQLException e) {
logger.error(e, e);
asyncResponse.resume(new WebApplicationException(Response.Status.INTERNAL_SERVER_ERROR));
}
}
Check this Link for more details.
I'm using Retrofit2 and RxJava2CallAdapterFactory.
The API I consume returns status code always as 200 and for success and response JSON string the JSON structure is entirely different. Since the status code is always 200 the onResponse() method is called always. Hence, I'm not able to extract error msgs from the JSON in the error condition.
Solution 1:
I use ScalarsConverterFactory to get response String and manually use Gson to parse the response .
How to get response as String using retrofit without using GSON or any other library in android
Problem with this solution: I'm planning to use RxJava2CallAdapterFactory for that the retrofit method should return DataModel Class.
I need to find the best solution for this problem, in way I can keep returning the data model classes from Retrofit method & somehow I identify the error condition from response (identify the response JSON does not match the data model) and then parse the error JSON into a data model.
Retrofit Client
public static Retrofit getClient(String url) {
if (apiClient == null) {
HttpLoggingInterceptor interceptor = new HttpLoggingInterceptor();
interceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
OkHttpClient httpClient = new OkHttpClient.Builder().addInterceptor(interceptor).build();
apiClient = new Retrofit.Builder()
.baseUrl(url)
/*addCallAdapterFactory for RX Recyclerviews*/
.addCallAdapterFactory(RxJava2CallAdapterFactory.create())
/* add ScalarsConverterFactory to get json string as response */
// .addConverterFactory(ScalarsConverterFactory.create())
.addConverterFactory(GsonConverterFactory.create())
// .addConverterFactory(GsonConverterFactory.create(gson))
.client(httpClient)
.build();
}
return apiClient;
}
Method
public static void getLoginAPIResponse(String username, String password, String sourceId, String uuid, final HttpCallback httpCallback) {
baseUrl = AppPreference.getParam(UiUtils.getContext(), SPConstants.BASE_URL, "").toString();
ApiInterface apiService =
ApiClient.getClient(baseUrl).create(ApiInterface.class);
Call<LoginBean> call = apiService.getLoginResponse(queryParams);
call.enqueue(new Callback<LoginBean>() {
#Override
public void onResponse(Call<LoginBean> call, Response<LoginBean> response) {
if (response.body().isObjectNull()) {
httpCallback.resultCallback(APIConstants.API_LOGIN, HttpCallback.REQUEST_TYPE_GET,
HttpCallback.RETURN_TYPE_FAILURE, 0, null);
return;
}
httpCallback.resultCallback(APIConstants.API_LOGIN, HttpCallback.REQUEST_TYPE_GET,
HttpCallback.RETURN_TYPE_SUCCESS, response.code(), response.body());
}
#Override
public void onFailure(Call<LoginBean> call, Throwable t) {
// Log error here since request failed
httpCallback.resultCallback(APIConstants.API_APP_VERIFICATION, HttpCallback.REQUEST_TYPE_GET,
HttpCallback.RETURN_TYPE_FAILURE, 0, t);
t.printStackTrace();
}
});
}
Interface
#GET("App/login")
Call<LoginBean> getLoginResponse(#QueryMap Map<String, String> queryMap);
PS :
The API cannot change for now, as some other applications are consuming it.
Gson parser does not return a null object instance for me to understand that there is json structure and datamodel mismatch.
RestAdapter is deprecated in Retrofit 2
I'm looking for the best approach to resolve this , preferably avoid manually json parsing and take most advantage of retrofit and RX adapters.
EDIT
Response code 200 hence
response.isSuccessful() == true
response.body() != null is also true as Gson never creates a null instance or throws any exception if there is mismatch of JSON structure
response.errorBody() == null at all times as response sent as input stream from the server.
if (response.isSuccessful() && response.body() != null) {
//control always here as status code 200 for error condition also
}else if(response.errorBody()!=null){
//control never reaches here
}
EDIT 2
SOLUTION
The solution is based on anstaendig answer
I have created a base generic class to further this answer.
Since I have multiple apis and data models I have to create deserilizers for each
BASE API BEAN
public class BaseApiBean<T> {
#Nullable
private T responseBean;
#Nullable
private ErrorBean errorBean;
public BaseApiBean(T responseBean, ErrorBean errorBean) {
this.responseBean = responseBean;
this.errorBean = errorBean;
}
public T getResponseBean() {
return responseBean;
}
public void setResponseBean(T responseBean) {
this.responseBean = responseBean;
}
public ErrorBean getErrorBean() {
return errorBean;
}
public void setErrorBean(ErrorBean errorBean) {
this.errorBean = errorBean;
}
}
BASE DESERIALIZER
public abstract class BaseDeserializer implements JsonDeserializer<BaseApiBean> {
#Override
public BaseApiBean deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
throws JsonParseException {
// Get JsonObject
final JsonObject jsonObject = json.getAsJsonObject();
if (jsonObject.has("result")) {
/* {"result":"404"}*/
ErrorBean errorMessage = new Gson().fromJson(jsonObject, ErrorBean.class);
return getResponseBean(errorMessage);
} else {
return getResponseBean(jsonObject);
}
}
public abstract BaseApiBean getResponseBean(ErrorBean errorBean);
public abstract BaseApiBean getResponseBean(JsonObject jsonObject);
}
Custom Deserializer for each API
public class LoginDeserializer extends BaseDeserializer {
#Override
public BaseApiBean getResponseBean(ErrorBean errorBean) {
return new LoginResponse(null, errorBean);
}
#Override
public BaseApiBean getResponseBean(JsonObject jsonObject) {
LoginBean loginBean = (new Gson().fromJson(jsonObject, LoginBean.class));
return new LoginResponse(loginBean, null);
}
}
CUSTOM RESPONSE BEAN
public class LoginResponse extends BaseApiBean<LoginBean> {
public LoginResponse(LoginBean responseBean, ErrorBean errorBean) {
super(responseBean, errorBean);
}
}
CLIENT
public class ApiClient {
private static Retrofit apiClient = null;
private static Retrofit apiClientForFeedBack = null;
private static LoginDeserializer loginDeserializer = new LoginDeserializer();
private static AppVerificationDeserializer appVerificationDeserializer = new AppVerificationDeserializer();
public static Retrofit getClient(String url) {
if (apiClient == null) {
GsonBuilder gsonBuilder=new GsonBuilder();
gsonBuilder.registerTypeAdapter(LoginResponse.class,
loginDeserializer);
gsonBuilder.registerTypeAdapter(AppVerificationResponse.class,
appVerificationDeserializer);
Gson gson= gsonBuilder.create();
HttpLoggingInterceptor interceptor = new HttpLoggingInterceptor();
interceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
OkHttpClient httpClient = new OkHttpClient.Builder().addInterceptor(interceptor)
.retryOnConnectionFailure(true)
.connectTimeout(15, TimeUnit.SECONDS)
.build();
apiClient = new Retrofit.Builder()
.baseUrl(url)
/*addCallAdapterFactory for RX Recyclerviews*/
.addCallAdapterFactory(RxJava2CallAdapterFactory.create())
/* add ScalarsConverterFactory to get json string as response */
// .addConverterFactory(ScalarsConverterFactory.create())
// .addConverterFactory(GsonConverterFactory.create())
.addConverterFactory(GsonConverterFactory.create(gson))
.client(httpClient)
.build();
}
return apiClient;
}
HANDLE RESPONSE
public static void getLoginAPIResponse(String username, String password, String sourceId, String uuid, final HttpCallback httpCallback) {
baseUrl = AppPreference.getParam(getContext(), SPConstants.MT4_BASE_URL, "").toString();
ApiInterface apiService =
ApiClient.getClient(baseUrl).create(ApiInterface.class);
HashMap<String, String> queryParams = new HashMap<>();
queryParams.put(APIConstants.KEY_EMAIL, sourceId + username.toLowerCase());
queryParams.put(APIConstants.KEY_PASSWORD, Utils.encodePwd(password));
Call<LoginResponse> call = apiService.getLoginResponse(queryParams);
call.enqueue(new Callback<LoginResponse>() {
#Override
public void onResponse(Call<LoginResponse> call, Response<LoginResponse> response) {
if (response.body().getResponseBean()==null) {
httpCallback.resultCallback(APIConstants.API_LOGIN, HttpCallback.REQUEST_TYPE_GET,
HttpCallback.RETURN_TYPE_FAILURE, 0, response.body().getErrorBean());
return;
}
httpCallback.resultCallback(APIConstants.API_LOGIN, HttpCallback.REQUEST_TYPE_GET,
HttpCallback.RETURN_TYPE_SUCCESS, response.code(), response.body().getResponseBean());
}
#Override
public void onFailure(Call<LoginResponse> call, Throwable t) {
// Log error here since request failed
httpCallback.resultCallback(APIConstants.API_APP_VERIFICATION, HttpCallback.REQUEST_TYPE_GET,
HttpCallback.RETURN_TYPE_FAILURE, 0, t);
t.printStackTrace();
}
});
}
So you have two different successful (status code 200) responses from the same endpoint. One being the actual data model and one being an error (both as a json structure like this?:
Valid LoginBean response:
{
"id": 1234,
"something": "something"
}
Error response
{
"error": "error message"
}
What you can do is have an entity that wraps both cases and use a custom deserializer.
class LoginBeanResponse {
#Nullable private final LoginBean loginBean;
#Nullable private final ErrorMessage errorMessage;
LoginBeanResponse(#Nullable LoginBean loginBean, #Nullable ErrorMessage errorMessage) {
this.loginBean = loginBean;
this.errorMessage = errorMessage;
}
// Add getters and whatever you need
}
A wrapper for the error:
class ErrorMessage {
String errorMessage;
// And whatever else you need
// ...
}
Then you need a JsonDeserializer:
public class LoginBeanResponseDeserializer implements JsonDeserializer<LoginBeanResponse> {
#Override
public LoginBeanResponse deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) throws JsonParseException {
// Based on the structure you check if the data is valid or not
// Example for the above defined structures:
// Get JsonObject
final JsonObject jsonObject = json.getAsJsonObject();
if (jsonObject.has("error") {
ErrorMessage errorMessage = new Gson().fromJson(jsonObject, ErrorMessage.class);
return new LoginBeanResponse(null, errorMessage)
} else {
LoginBean loginBean = new Gson().fromJson(jsonObject, LoginBean.class):
return new LoginBeanResponse(loginBean, null);
}
}
}
Then add this deserializer to the GsonConverterFactory:
GsonBuilder gsonBuilder = new GsonBuilder().registerTypeAdapter(LoginBeanResponse.class, new LoginBeanResponseDeserializer()).create():
apiClient = new Retrofit.Builder()
.baseUrl(url)
.addCallAdapterFactory(RxJava2CallAdapterFactory.create())
.addConverterFactory(GsonConverterFactory.create(gsonBuilder))
.client(httpClient)
.build();
This is the only way I can think of making this work. But as already mentioned this kind of API design is just wrong because status codes are there for a reason. I still hope this helps.
EDIT: What you can then do inside the class where you make the call to that Retrofit (if you already converted from Call<LoginBeanResponse> to Single<LoginBeanResponse> with RxJava) is actually return a proper error. Something like:
Single<LoginBean> getLoginResponse(Map<String, String> queryMap) {
restApi.getLoginResponse(queryMap)
.map(loginBeanResponse -> { if(loginBeanResponse.isError()) {
Single.error(new Throwable(loginBeanResponse.getError().getErrorMessage()))
} else {
Single.just(loginBeanReponse.getLoginBean())
}})
}
You can simply do that by doing this
try
{
String error = response.errorBody().string();
error = error.replace("\"", "");
Toast.makeText(getContext(), error, Toast.LENGTH_LONG).show();
}
catch (IOException e)
{
e.printStackTrace();
}
One possible solution is to make Gson fail on unknown properties. There seems to be an issue raised already(https://github.com/google/gson/issues/188). You can use the workaround provided in the issue page. So the steps are as follows:
Add the workaround ValidatorAdapterFactory to the code base:
public class ValidatorAdapterFactory implements TypeAdapterFactory {
#Override
public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> type) {
// If the type adapter is a reflective type adapter, we want to modify the implementation using reflection. The
// trick is to replace the Map object used to lookup the property name. Instead of returning null if the
// property is not found, we throw a Json exception to terminate the deserialization.
TypeAdapter<T> delegate = gson.getDelegateAdapter(this, type);
// Check if the type adapter is a reflective, cause this solution only work for reflection.
if (delegate instanceof ReflectiveTypeAdapterFactory.Adapter) {
try {
// Get reference to the existing boundFields.
Field f = delegate.getClass().getDeclaredField("boundFields");
f.setAccessible(true);
Map boundFields = (Map) f.get(delegate);
// Then replace it with our implementation throwing exception if the value is null.
boundFields = new LinkedHashMap(boundFields) {
#Override
public Object get(Object key) {
Object value = super.get(key);
if (value == null) {
throw new JsonParseException("invalid property name: " + key);
}
return value;
}
};
// Finally, push our custom map back using reflection.
f.set(delegate, boundFields);
} catch (Exception e) {
// Should never happen if the implementation doesn't change.
throw new IllegalStateException(e);
}
}
return delegate;
}
}
Build a Gson object with this TypeAdaptorFactory:
Gson gson = new GsonBuilder().registerTypeAdapterFactory(new ValidatorAdapterFactory()).create()
And then use this gson instance in GsonConverterFactory like below:
apiClient = new Retrofit.Builder()
.baseUrl(url)
.addCallAdapterFactory(RxJava2CallAdapterFactory.create())
.addConverterFactory(GsonConverterFactory.create(gson)) //Made change here
.client(httpClient)
.build();
This should throw an error if the unmarshalling step finds an unknown property, in this case the error response structure.
Here is another attempt. General idea: create a custom Converter.Factory based on GsonConverterFactory and a custom Converter<ResponseBody, T> converter based on GsonRequestBodyConverter to parse whole body 2 times: first time as error and second time as actual expected response type. In this way we can parse error in a single place and still preserve friendly external API. This is actually similar to #anstaendig answer but with much less boilerplate: no need for additional wrapper bean class for each response and other similar stuff.
First class ServerError that is a model for your "error JSON" and custom exception ServerErrorException so you can get all the details
public class ServerError
{
// add here actual format of your error JSON
public String errorMsg;
}
public class ServerErrorException extends RuntimeException
{
private final ServerError serverError;
public ServerErrorException(ServerError serverError)
{
super(serverError.errorMsg);
this.serverError = serverError;
}
public ServerError getServerError()
{
return serverError;
}
}
Obviously you should change the ServerError class to match your actual data format.
And here is the main class GsonBodyWithErrorConverterFactory:
public class GsonBodyWithErrorConverterFactory extends Converter.Factory
{
private final Gson gson;
private final GsonConverterFactory delegate;
private final TypeAdapter<ServerError> errorTypeAdapter;
public GsonBodyWithErrorConverterFactory()
{
this.gson = new Gson();
this.delegate = GsonConverterFactory.create(gson);
this.errorTypeAdapter = gson.getAdapter(TypeToken.get(ServerError.class));
}
#Override
public Converter<ResponseBody, ?> responseBodyConverter(Type type, Annotation[] annotations, Retrofit retrofit)
{
return new GsonBodyWithErrorConverter<>(gson.getAdapter(TypeToken.get(type)));
}
#Override
public Converter<?, RequestBody> requestBodyConverter(Type type, Annotation[] parameterAnnotations, Annotation[] methodAnnotations, Retrofit retrofit)
{
return delegate.requestBodyConverter(type, parameterAnnotations, methodAnnotations, retrofit);
}
#Override
public Converter<?, String> stringConverter(Type type, Annotation[] annotations, Retrofit retrofit)
{
return delegate.stringConverter(type, annotations, retrofit);
}
class GsonBodyWithErrorConverter<T> implements Converter<ResponseBody, T>
{
private final TypeAdapter<T> adapter;
GsonBodyWithErrorConverter(TypeAdapter<T> adapter)
{
this.adapter = adapter;
}
#Override
public T convert(ResponseBody value) throws IOException
{
// buffer whole response so we can safely read it twice
String contents = value.string();
try
{
// first parse response as an error
ServerError serverError = null;
try
{
JsonReader jsonErrorReader = gson.newJsonReader(new StringReader(contents));
serverError = errorTypeAdapter.read(jsonErrorReader);
}
catch (Exception e)
{
// ignore and try to read as actually required type
}
// checked that error object was parsed and contains some data
if ((serverError != null) && (serverError.errorMsg != null))
throw new ServerErrorException(serverError);
JsonReader jsonReader = gson.newJsonReader(new StringReader(contents));
return adapter.read(jsonReader);
}
finally
{
value.close();
}
}
}
}
The basic idea is that the factory delegates other calls to the standard GsonConverterFactory but intercepts responseBodyConverter to create a custom GsonBodyWithErrorConverter. The GsonBodyWithErrorConverter is doing the main trick:
First it reads whole response as String. This is required to ensure response body is buffered so we can safely re-read it 2 times. If your response actually might contain some binary you should read and buffer the response as binary and unfortunately retrofit2.Utils.buffer is not a public method but you can create a similar one yourself. I just read the body as a String as it should work in simple cases.
Create a jsonErrorReader from the buffered body and try to read the body as a ServerError. If we can do it, we've got an error so throw our custom ServerErrorException. If we can't read it in that format - just ignore exception as it is probably just normal successful response
Actually try to read the buffered body (second time) as the requested type and return it.
Note that if your actual error format is not JSON you still can do all the same stuff. You just need to change the error parsing logic inside GsonBodyWithErrorConverter.convert to anything custom you need.
So now in your code you can use it as following
.addConverterFactory(new GsonBodyWithErrorConverterFactory()) // use custom factory
//.addConverterFactory(GsonConverterFactory.create()) //old, remove
Note: I haven't actually tried this code so there might be bugs but I hope you get the idea.
Can anyone please give me some example how we can use protobuf in retrofit - I tried but its failed with some error , let me give you a sample of my implementation on that.
I hope you guys will help me.
ApiInterface.java
public interface ApiInterface {
#GET
Call<CommonProto.Country> makeGetRequest(#Url String url);
}
ApiClient.java
public class ApiClient {
public static final String BASE_URL = "**************************";
private static Retrofit retrofit = null;
public static Retrofit getClient() {
if (retrofit==null) {
retrofit = new Retrofit.Builder()
.baseUrl(BASE_URL)
.addConverterFactory(Proto3ConverterFactory.create())
.build();
}
return retrofit;
}
}
MainActivity.java
ApiInterface apiService =
ApiClient.getClient().create(ApiInterface.class);
Call<CommonProto.Country> call = apiService.makeGetRequest("Services/CountryServices/GetAllCountry");
call.enqueue(new Callback<CommonProto.Country>() {
#Override
public void onResponse(Call<CommonProto.Country> call, Response<CommonProto.Country> response) {
String bodyString = null;
try {
Log.e("RETROFIT ::::::: ", String.valueOf(response.body())+"TEST");
} catch (Exception e) {
Log.e("RETROFIT ERROR ::::::: ", e.getMessage()+"TEST");
e.printStackTrace();
}
}
#Override
public void onFailure(Call<CommonProto.Country> call, Throwable t) {
// Log error here since request failed
Log.e(TAG, t.toString());
}
}
);
when i run this way i got the error
java.lang.RuntimeException: com.google.protobuf.InvalidProtocolBufferException: Protocol message tag had invalid wire type.
my Proto.java file and also have Proto.proto file both are here in this link,
https://drive.google.com/folderview?id=0B4loQuzINvHCRUlNbk5LUXE1NXM&usp=sharing
Please let me know how to do this GET Req and also I was Struggling with POST Req.
you can create interface like this
public interface LoginInterface {
#FormUrlEncoded
#POST("url goes here")
Call<LoginResponseData> getUserLoginDeatail(#FieldMap Map<String, String> fields);
}
make an instance of retro file and call interface method something like this
Retrofit retrofit = new Retrofit.Builder()
.baseUrl("base url")
.build();
webApis = retrofit.create(WebApis.class);
Call<LoginResponseData> call = webApis.getCurrentRide(keyValue);
call.enqueue(new Callback<LoginResponseData>() {
#Override
public void onResponse(Call<LoginResponseData> call, Response<LoginResponseData> response) {
try {
} catch (Exception e) {
// customizedToast.showToast(context.getResources().getString(
// R.string.exception));
e.printStackTrace();
}
}
#Override
public void onFailure(Call<LoginResponseData> call, Throwable t) {
}
});
for protocol buffer you can find a reference here