I am trying to use an Interceptor to add a header when using Retrofit. I think I have created my Interceptor in the right way but I don't know what should I do to call it and connect it with my GET Retrofit method.
This is my Interceptor:
public class HeaderInterceptor
implements Interceptor {
#Override
public Response intercept(Chain chain)
throws IOException {
Request request = chain.request();
request = request.newBuilder()
.addHeader(Constants.VersionHeader.NAME, Constants.VersionHeader.VALUE)
.addHeader("Authorization", "Bearer " + token)
.addHeader("Origin","MY URL")
.build();
Response response = chain.proceed(request);
return response;
}
}
And this is my interface:
public interface CategoryService {
#GET("/v3/projects/{projectId}/categories/")
Call<ArrayList<Category2>> getProjectCategories(#Path("projectId") String projectId);
}
I also have this client which I don't know if I should use it anymore considering that I am using an Interceptor:
public class CategoryClient {
public static final String BASE_URL = "MY URL";
private static Retrofit retrofit = null;
public static Retrofit getClient() {
if (retrofit==null) {
retrofit = new Retrofit.Builder()
.baseUrl(BASE_URL)
.addConverterFactory(GsonConverterFactory.create())
.build();
}
return retrofit;
}
}
So I have this GET method getProjectCategories, where I pass the projectID and it returns the contents. What I want to know is how can I call the method using the Interceptor and be able to get the results from the request.
I was able to fix my problem by creating a method called SendNetworkRequest sending the projectId as a parameter, and inside this class I created my OkHttpClient, my Interceptor and my retrofit builder to handle everything that i needed.
private void SendNetworkRequest(String projectID) {
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("MY URL")
.client(okhttpBuilder.build())
.addConverterFactory(GsonConverterFactory.create());
Retrofit retrofit = builder.build();
CategoryService category = retrofit.create(CategoryService.class);
Call<ArrayList<Category2>> call = category.getProjectCategories(projectID, token);
call.enqueue(new Callback<ArrayList<Category2>>() {
#Override
public void onResponse(Call<ArrayList<Category2>> call, Response<ArrayList<Category2>> response) {
listCategories = response.body();
listCategories.remove(response.body().size() - 1);
if (response.body().size() > 0){
add_category_layout.setVisibility(View.VISIBLE);
layout_bar.setVisibility(View.VISIBLE);
message_body.setVisibility(View.INVISIBLE);
message_title.setVisibility(View.INVISIBLE);
edit_image.setVisibility(View.INVISIBLE);
adapter2 = new CategoryAdapter2(getApplicationContext(), listCategories);
recyclerView.setAdapter(adapter2);
recyclerView.setVisibility(View.VISIBLE);
}
}
#Override
public void onFailure(Call<ArrayList<Category2>> call, Throwable t) {
// Log error here since request failed
Log.e(TAG, t.toString());
}
});
}
Related
I am plugging Retrofit into my android app.
Here is how I build retrofit, notice the interceptor for the logging and headers.
public void buildRetrofit(String token){
OkHttpClient.Builder httpClient = new OkHttpClient.Builder();
HttpLoggingInterceptor logging = new HttpLoggingInterceptor();
logging.setLevel(HttpLoggingInterceptor.Level.BODY);
httpClient.addNetworkInterceptor(new Interceptor() {
#Override
public Response intercept(Chain chain) throws IOException {
Request newRequest = chain.request().newBuilder()
.header("Authorization", "Bearer " + token)
.header("Content-Type", "application/json")
.header("api-version", "1")
.method(chain.request().method(), chain.request().body())
.build();
return chain.proceed(newRequest);
}
});
httpClient.addInterceptor(logging);
Retrofit.Builder buidler = new Retrofit.Builder()
.baseUrl("XXX_HIDDEN_FORSTACKOVERFLOW")
.addConverterFactory(GsonConverterFactory.create())
.client(httpClient.build());
retroFit = buidler.build();
}
I make the call like so
OrderApi orderApi = mainActivity.retroFit.create(OrderApi.class);
Call<Order> call = orderApi.getOpenOrder();
call.enqueue(new Callback<Order>() {
#Override
public void onResponse(Call<Order> call, Response<Order> response) {
Order a = response.body();
int b = 1;
}
#Override
public void onFailure(Call<Order> call, Throwable t) {
}
});
And here is how the actual request tag
public interface OrderApi {
#POST("/HIDDEN")
Call<Order> getOpenOrder();
}
Lastly, here is the order class
public class Order {
private String orderId;
private OrderStatus orderStatus;
public String getOrderId(){
return orderId;
}
public OrderStatus getOrderStatus() {
return orderStatus;
}
}
I get a response of 400. I have no idea why, and It works in postman etc. Something to note is that the response contains a lot more properties than just the ones in the class. I just want a proof on concept, but that shouldn't break things right?
.................
Managed to fix it. Had to send an empty body request as it was a post but I wasn't posting anything. API is dumb.
See here to send empty request Send empty body in POST request in Retrofit
I am working on a project which will retrieve and send data to server through django api. I am facing problem to POST data through the api. My codes are given below. Executing this code give 401 Error in response in android studio but the api works fine in postman or web browser. TIA for the help.
Class to set retrofit instance:
public class ApiClient {
public static final String BASE_URL = "https://myapilink.com/";
private static Retrofit retrofit = null;
public static Retrofit getClient() {
final OkHttpClient.Builder httpClient = new OkHttpClient.Builder();
httpClient.addInterceptor(new Interceptor() {
#Override
public Response intercept(Chain chain) throws IOException {
Request original = chain.request();
// Request customization: add request headers
Request.Builder requestBuilder = original.newBuilder()
.header("Authorization", "auth-value"); // <-- this is the important line
Request request = requestBuilder.build();
return chain.proceed(request);
}
});
final OkHttpClient okHttpClient = new OkHttpClient.Builder()
.connectTimeout(60, TimeUnit.SECONDS)
.writeTimeout(30, TimeUnit.SECONDS)
.readTimeout(30, TimeUnit.SECONDS)
.addInterceptor(new Interceptor() {
#Override
public Response intercept(Chain chain) throws IOException {
Request original = chain.request();
// Request customization: add request headers
Request.Builder requestBuilder = original.newBuilder()
.header("Authorization", "Basic YWRtaW46MTIzNA=="); // <-- this is the important line
Request request = requestBuilder.build();
return chain.proceed(request);
}
})
.build();
if (retrofit==null) {
retrofit = new Retrofit.Builder()
.baseUrl(BASE_URL)
.addConverterFactory(GsonConverterFactory.create())
.addCallAdapterFactory(RxJava2CallAdapterFactory.createWithScheduler(Schedulers.io()))
.client(okHttpClient)
.build();
}
return retrofit;
}
Retrofit interface:
public interface ApiInterface {
#Headers("Content-Type: application/json")
#POST("/api/auth/login/")
Call<LoginModel> getLoginResponseWithRetrofit(#Body LoginBody loginBody);
}
LoginBody model:
public class LoginBody {
String email;
String password;
public LoginBody(String email, String password){
this.email=email;
this.password=password;
}
}
Main api calling method:
public void postDataWithRetrofit(String email, String password){
//modelFromIDProvider.add(InternalDataProvider.getInstance().getAgentDataModelList());
int selectedPosition,id;
LoginBody loginBody = new LoginBody(email, password);
ApiInterface apiService = ApiClient.getClient().create(ApiInterface.class);
Call<LoginModel> call;
Map<String, String> formData = new HashMap<>();
formData.put("email", email);
formData.put("password", password);
Log.d(TAG,"formdata "+formData.toString());
//call = apiService.getLoginResponseWithRetrofit(email, password);
call = apiService.getLoginResponseWithRetrofit(loginBody);
call.enqueue(new Callback<LoginModel>() {
#Override
public void onResponse(Call<LoginModel> call, Response<LoginModel> response) {
Log.d(TAG,"isSuccessful "+response.isSuccessful()+" code "+response.code());
Log.d(TAG,"Data from response : "+response.body());
if(!response.isSuccessful()) {
dialog.dismiss();
return;
}
LoginModel responseModel = response.body();
InternalDataProvider.getInstance().setLoginDataModel(responseModel);
Log.d(TAG,"Data from response : "+response.body());
}
#Override
public void onFailure(Call<LoginModel> call, Throwable t) {
if(call.isCanceled()){
Log.d(TAG," call cancelled "+t.toString());
return;
}
Log.d(TAG," inside onFailure "+t.toString());
}
});
}
I am using retrofit to post the request to server but it is posting data twice. I have checked code, I made only on call. I know retrofit trying to connect server again and again until it connected or timeout but if once data posted to server and I get the response from server than why retrofit making again call for the same.
Call<LoanSaveResponse> call = apiService.saveLoan(loan);
call.enqueue(new retrofit2.Callback<LoanSaveResponse>() {
#Override
public void onResponse(Call<LoanSaveResponse> call, Response<LoanSaveResponse> response) {
customProgressBar.stopProgressBar();
Log.e(" response", new Gson().toJson(response));
if (response != null) {
if (response.body() != null) {
// Showing Alert Message
showDialog(response.body().loan_id);
}
}
}
#Override
public void onFailure(Call<LoanSaveResponse> call, Throwable t) {
customProgressBar.stopProgressBar();
Log.e("Failed", t.toString());
}
});
}
public class ApiClient {
/*http://172.16.40.1:8080/loyalty/*/
//:http://54.83.7.62:8080/loyalty/userAnswer
private static Retrofit retrofit = null;
public static Retrofit getClient() {
if (retrofit==null) {
HttpLoggingInterceptor interceptor = new HttpLoggingInterceptor();
interceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
OkHttpClient client = new OkHttpClient.Builder().addInterceptor(interceptor).build();
retrofit = new Retrofit.Builder()
.baseUrl(GlobalBaseUrl.BASE_URL)
.addConverterFactory(GsonConverterFactory.create())
.client(client)
.build();
}
return retrofit;
}
}
For Retrofit 2
Define a listener in your web service instance:
public interface OnConnectionTimeoutListener {
void onConnectionTimeout();
}
Add an interceptor to your web service:
public WebServiceClient() {
OkHttpClient client = new OkHttpClient();
client.setConnectTimeout(10, TimeUnit.SECONDS);
client.setReadTimeout(30, TimeUnit.SECONDS);
client.interceptors().add(new Interceptor() {
#Override
public Response intercept(Chain chain) throws IOException {
return onOnIntercept(chain);
}
});
Retrofit retrofit = new Retrofit.Builder()
.baseUrl(BASE_URL)
.addConverterFactory(GsonConverterFactory.create())
.client(client)
.build();
webService = retrofit.create(WebService.class);
}
Enclose your intercept code with the try-catch block and notify the listener when an exception happens:
private Response onOnIntercept(Chain chain) throws IOException {
try {
Response response = chain.proceed(chain.request());
String content =
UtilityMethods.convertResponseToString(response);
Log.d(TAG, lastCalledMethodName + " - " + content);
return;
response.newBuilder().body
(ResponseBody.create
(response.body().contentType(), content))
.build();}
catch (SocketTimeoutException exception) {
exception.printStackTrace();
if(listener != null)
listener.onConnectionTimeout();
}
return chain.proceed(chain.request());
}
I have Singleton dagger module for OkHttp client and I am trying to add header using Interceptor
#Provides
#Singleton
OkHttpClient provideOkhttpClient(Cache cache, final LocalData localData) {
HttpLoggingInterceptor logging = new HttpLoggingInterceptor();
logging.setLevel(HttpLoggingInterceptor.Level.HEADERS);
OkHttpClient.Builder client = new OkHttpClient.Builder();
client.readTimeout(60, TimeUnit.SECONDS);
client.addInterceptor(logging);
client.addNetworkInterceptor(new Interceptor() {
#Override
public Response intercept(#NonNull Chain chain) throws IOException {
Request original = chain.request();
Request.Builder requestBuilder = original.newBuilder()
.addHeader("Hp-Application", "Android");
Request request = requestBuilder.build();
Response originalResponse = chain.proceed(request);
try {
if (originalResponse.code() == 200) {
localData.setLastUpdateTime(System.currentTimeMillis());
}
} catch (Exception e) {
e.printStackTrace();
}
return originalResponse;
}
});
client.connectTimeout(60, TimeUnit.SECONDS);
client.cache(cache);
return client.build();
}
But looking to the logs I can't see expected header. Also I receive error, as specific call don't work without required header.
I also tried to add it with addInterceptor()/addNetworkInterceptor() using different class
public class HeaderInterceptor
implements Interceptor {
#Override
public Response intercept(Chain chain)
throws IOException {
Request request = chain.request();
request = request.newBuilder()
.addHeader("Hp-Application", "Android")
.build();
return chain.proceed(request);
}
}
But this way didn't work for me too.
How can I add this header to each call of application having only one implementation?
The order you add the interceptors matters. Your logging interceptor runs first, and only after that is the header-adding interceptor run.
For best logging experience, make the logging interceptor the last one you add.
Hey #Igor try this snippet this might help
public class RetrofitClient {
private static String BASE_URL = "http://192.168.0.100/rest/main.php/";
private static Retrofit retrofit = null;
public static Retrofit getRetroftInstance() {
if (retrofit == null) {
OkHttpClient.Builder httpClient = new OkHttpClient.Builder();
httpClient.addNetworkInterceptor(new SessionRequestInterceptor());
httpClient.addNetworkInterceptor(new ReceivedCookiesInterceptor());
retrofit = new Retrofit.Builder()
.baseUrl(BASE_URL)
.addConverterFactory(GsonConverterFactory.create())
.client(httpClient.build())
.build();
}
return retrofit;
}}
public class ReceivedCookiesInterceptor implements Interceptor {
#Override
public Response intercept(Chain chain) throws IOException {
Response originalResponse = chain.proceed(chain.request());
if (!originalResponse.headers("Set-Cookie").isEmpty()) {
HashSet<String> cookies = new HashSet<>();
for (String header : originalResponse.headers("Set-Cookie")) {
cookies.add(header);
if(header.startsWith("XSRF-TOKEN")) {
String newCookie[]=header.split(";");
System.out.println("newCookie Length: "+newCookie.length);
for(String ss:newCookie) {
if(ss.startsWith("XSRF-TOKEN")) {
System.out.println("Cookies ss: " + ss);
sharedPrefs.setToken(ss);
}
}
}
}
}
return originalResponse;
}
}
public class SessionRequestInterceptor implements Interceptor {
#Override
public Response intercept(Chain chain) throws IOException {
Request original = chain.request();
Request.Builder request = original.newBuilder();
request.header("Cookie",ServiceSharedPrefs.getInstance().getToken()));
request.method(original.method(), original.body());
return chain.proceed(request.build());
}
}
new OkHttpClient.Builder()
.addInterceptor(
new Interceptor() {
#Override
public Response intercept(Chain chain) throws IOException {
Request original = chain.request();
// Request customization: add request headers
Request.Builder requestBuilder = original.newBuilder().
header(AUTHENTICATION_HEADER, AUTHENTICATION_KEY).
method(original.method(), original.body());
Request request = requestBuilder.build();
//System.out.println(request.toString());
return chain.proceed(request);
}
}).addInterceptor(logging)
.build();
I am using Retrofit 2 and Okhttp for my android project. I want to add multiple headers in the api request.
This is my interceptor code :
public class NetworkInterceptors implements Interceptor {
#Override
public Response intercept(Interceptor.Chain chain) throws IOException {
Request request = chain.request().newBuilder()
.addHeader("Userid", "10034")
.addHeader("Securitykey", "Fb47Gi")
.build();
return chain.proceed(request);
}
}
This is not working properly. In server side I am getting only the last added header (in the above example I am getting only Securitykey missing "Userid" )
Please Help.
Thanks for support
I found the answer, This is working fine for me
public class NetworkInterceptors implements Interceptor {
#Override
public Response intercept(Interceptor.Chain chain) throws IOException {
Request request = chain.request();
Request newRequest;
newRequest = request.newBuilder()
.addHeader("Userid", "10034")
.addHeader("Securitykey", "Fb47Gi")
.build();
return chain.proceed(newRequest);
}
}
You can use this class pass the context in this class if user already logged in.
public class ApiClient {
public static final String BASE_URL = "";
private static Retrofit retrofit = null;
static Context mcontext;
public static Retrofit getClient(Context context,String baseUrl)
{
mcontext = context;
OkHttpClient okHttpClient = new OkHttpClient.Builder()
.connectTimeout(220, TimeUnit.SECONDS)// Set connection timeout
.readTimeout(220, TimeUnit.SECONDS)// Read timeout
.writeTimeout(220, TimeUnit.SECONDS)// Write timeout
.addInterceptor( HeaderInterceptor() )
// .addNetworkInterceptor(REWRITE_CACHE_CONTROL_INTERCEPTOR)// Add cache interceptor
// .cache(cache)// Add cache
.build();
Gson gson = new GsonBuilder()
.setLenient()
.create();
if (retrofit == null) {
retrofit = new Retrofit.Builder()
.baseUrl(baseUrl)
.client(okHttpClient)
.addCallAdapterFactory(RxJavaCallAdapterFactory.create())
.addConverterFactory(GsonConverterFactory.create(gson))
.build();
}
return retrofit;
}
private static Interceptor HeaderInterceptor() {
return new Interceptor() {
#Override
public okhttp3.Response intercept(Chain chain) throws IOException {
okhttp3.Request request = chain.request();
if(SharedPreference.getlogin(mcontext).equals("")){
request = request.newBuilder()
.addHeader("Accept", "application/json")
.addHeader("Authorization", "Bearer "+SharedPreference.gettoken(mcontext))
.build();
}
else {
request = request.newBuilder()
.addHeader("Accept", "application/json")
.build();
}
okhttp3.Response response = chain.proceed(request);
return response;
}
};
}
}