I am a noob to android developer.
I am using android studio to develop app.I am using retrofit to interact with server rest api.it seems to have some question, when I use android studio avd to debug the rest api request and response, I can't see the response body on android studio logcat, event the resposne status is 200.
but when I debug the rest api with the real mobile it will get response correctly.
I want to know if android studio can't debug the rest api and if it can, how should I use it.
Addition, I debug the rest api use retrofit okttp interceptor.
try this code
add below dependency into gradle file
implementation 'com.squareup.okhttp3:logging-interceptor:3.4.1'
public class ApiClient {
private final static String BASE_URL = "https://simplifiedcoding.net/demos/";
public static ApiClient apiClient;
private Retrofit retrofit = null;
public static ApiClient getInstance() {
if (apiClient == null) {
apiClient = new ApiClient();
}
return apiClient;
}
//private static Retrofit storeRetrofit = null;
public Retrofit getClient() {
return getClient(null);
}
private Retrofit getClient(final Context context) {
HttpLoggingInterceptor interceptor = new HttpLoggingInterceptor();
interceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
OkHttpClient.Builder client = new OkHttpClient.Builder();
client.readTimeout(60, TimeUnit.SECONDS);
client.writeTimeout(60, TimeUnit.SECONDS);
client.connectTimeout(60, TimeUnit.SECONDS);
client.addInterceptor(interceptor);
client.addInterceptor(new Interceptor() {
#Override
public okhttp3.Response intercept(Chain chain) throws IOException {
Request request = chain.request();
return chain.proceed(request);
}
});
retrofit = new Retrofit.Builder()
.baseUrl(BASE_URL)
.client(client.build())
.addConverterFactory(GsonConverterFactory.create())
.build();
return retrofit;
}
}
it show all log api url,response etc.
Related
In my code, I want to send post request with basic auth.
Here is my postman screenshot :
here is my apiInterface class
#FormUrlEncoded
#POST("GetBarcodeDetail")
Call<PreliminaryGoodsAcceptResponse> PRELIMINARY_GOODS_ACCEPT_RESPONSE_CALL(#Field("ProcName") String procName, #Field("Barcode") String barcode, #Field("LangCode") String langCode);
here is my apiclient
public class ApiClient {
public static final String BASE_URL = "http://192.**********";
private static Retrofit retrofit = null;
private static OkHttpClient sClient;
public static Retrofit getClient() {
if(sClient == null) {
HttpLoggingInterceptor interceptor = new HttpLoggingInterceptor();
interceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
sClient = new OkHttpClient.Builder()
.addInterceptor(new HttpLoggingInterceptor(HttpLoggingInterceptor.Logger.DEFAULT))
.addInterceptor(interceptor)
.build();
}
if (retrofit==null) {
retrofit = new Retrofit.Builder()
.baseUrl(BASE_URL)
.addConverterFactory(GsonConverterFactory.create())
.client(sClient)
.build();
}
return retrofit;
}
}
My question is how can i send post request,using header :
Header Username : EBA Token :
34242353453456563DSFS
This is so far the easiest method i have ever tried for "Basic Authentication".
Use the below code to generate the auth header (API/Repository class)
var basic = Credentials.basic("YOUR_USERNAME", "YOUR_PASSWORD")
Pass this as header to the webservice call (API/Repository class)
var retrofitCall = myWebservice.getNewsFeed(basic)
Add the basic header as parameter (Retrofit Webservice interface class)
#GET("newsfeed/daily")
fun getNewsFeed(#Header("Authorization") h1:String):Call<NewsFeedResponse>
Sorry, my code is in Kotlin, but can be easily translated to Java.
References: https://mobikul.com/basic-authentication-retrofit-android/
make header like this way..
private Retrofit getClient(final Context context) {
HttpLoggingInterceptor interceptor = new HttpLoggingInterceptor();
interceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
OkHttpClient.Builder client = new OkHttpClient.Builder();
client.readTimeout(60, TimeUnit.SECONDS);
client.writeTimeout(60, TimeUnit.SECONDS);
client.connectTimeout(60, TimeUnit.SECONDS);
client.addInterceptor(interceptor);
client.addInterceptor(new Interceptor() {
#Override
public Response intercept(Chain chain) throws IOException {
Request request = chain.request();
if (context == null) {
request = request
.newBuilder()
.build();
} else {
request = request
.newBuilder()
.addHeader("Authorization", "Bearer " + AppSetting.getStringSharedPref(context, Constants.USER_KEY_TOKEN, ""))
.build();
}
return chain.proceed(request);
}
});
retrofit = new Retrofit.Builder()
.baseUrl(BASE_URL)
.client(client.build())
.addConverterFactory(GsonConverterFactory.create())
.build();
return retrofit;
}
Use Header annotation
#FormUrlEncoded
#POST("GetBarcodeDetail")
Call<PreliminaryGoodsAcceptResponse> PRELIMINARY_GOODS_ACCEPT_RESPONSE_CALL(#Header("Authorization") token: String,#Field("ProcName") String procName, #Field("Barcode") String barcode, #Field("LangCode") String langCode);
Simple-Retrofit-API-request-and-Data-Loading Here I just add the project where create the API call to access data from database using retrofit library; which is leading library to access data on network. And display the accessed data in the List format. Create the Simple Android Studio Project with Empty Activity. Create the Adapter and activity item to show normal lists in android app. Now Create the App class extending Application, as Application class is a singleton that you can access from any activity or anywhere else you have a Context object.
You can check the more details about Application class from https://github.com/codepath/android_guides/wiki/Understanding-the-Android-Application-Class Why extend an Application class? https://developer.android.com/reference/android/app/Application.html
Add android:name=".YourApplication" i.e. class name extending the Application class in android. and class will be like public class YourApplication extends Application Init the Retrofit in Application class
//network code start
//init http logger
httpLoggingInterceptor = new HttpLoggingInterceptor();
httpLoggingInterceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
// init client client = new OkHttpClient.Builder()
.addInterceptor(httpLoggingInterceptor)
.addInterceptor(new Interceptor() {
#Override public Response intercept(Chain chain) throws IOException {
Request request = chain.request();
Request request2 = request.newBuilder().build();
return chain.proceed(request2);
}
}).connectTimeout(30, TimeUnit.SECONDS).writeTimeout(30, TimeUnit.SECONDS).readTimeout(30, TimeUnit.SECONDS).build();
Gson gson = new GsonBuilder().setLenient().create();
Retrofit mRetrofit = new Retrofit.Builder().baseUrl(Constants.API_BASE_URL).client(client).addConverterFactory(GsonConverterFactory.create(gson)).build();
mWebservice = mRetrofit.create(Webservice.class);
While Constants.API_BASE_URL is base url Create the Webervice.class where you can call the API with parameters e.g. In case of GET Method:
#GET("webservices/GetAllClientsDemoRetro.php")
Call updateChatStatus();
In case of POST method:
#FormUrlEncoded
#Headers({"Content-Type: application/x-www-form-urlencoded"})
#POST("webservices/GetAllClientsDemoRetro.php")
Call updateChatStatus();
You can See the more in details About Retrofit on Official API declaration here: http://square.github.io/retrofit/
We can parse the values with POJO i.e. Setter and Getter, using the Parceble class. Since parsing key name should be equal to the value we are receiving from the JSON response. POJO class should be declared like public class ClientData implements Parcelable { then declare the keys in the class, key values means
public class ClientData implements Parcelable
{
public String client_id;
public String company_name;
public String address_line;
public String city;
public String pincode;
public String state;
public String country;
}
Now using Alt+Enter i.e. select the option Add Parceble Implementation and press enter. Then automatically parceble class will be added. Also you have to add Setter and Getter method in class using Alt + Insert. Note: Don’t add the Setter and Getter methods for CREATER: Creater<> method If you want to use different key that JSON response key, then you should use Serialization. When I was using same key then its is like public String client_id; But when I am using the Serialization, then I can use like #Serializattion(“client_id”) public String ClientID; Now last but not a list, We call the API using retrofit, and use the response to view the Item in list-
RetroFitApplication.getWebservice().updateChatStatus().enqueue(new Callback() {
#Override public void onResponse(Call call, Response response) {
Log.d("retrofilt success", "" + response.body());
if (response.body() != null) {
clientResponceData = response.body();
Gson gson = new Gson();
String body = gson.toJson(response.body());
Log.d("retrofilt success2", "clientData" + clientResponceData.getResponse());
if (clientResponceData.getResponse() != null) {
initRV();
}
} else {
// Empty Client List Toast.makeText(ClientList.this, "Empty List", Toast.LENGTH_SHORT).show();
}
}
#Override public void onFailure(Call call, Throwable t) {
Log.d("retrofilt error", "" + t);
Toast.makeText(ClientList.this, "No Internet Connection", Toast.LENGTH_SHORT).show();
}
});
By using the Construction in Adapter, we can use the values from the response. Guys I added this repository to get the Entire idea of calling the API and get the response from server using the Retrofit Library. I write this entire documents in details with simple word.
I have a strange problem with one of my retrofit call,it works fine when the app is in the background(recent list)
I have a call through which i update my widget data,the problem is when the app is cleared of from the recent list,the call gives HTTP 401 unauthorized response.
however i pass the same bearer token with it.
please have a look at the code and suggest some help
public static OkHttpClient getOkhttpClient() {
OkHttpClient client = new OkHttpClient.Builder().addInterceptor(new Interceptor() {
#Override
public Response intercept(Chain chain) throws IOException {
Request newRequest = chain.request().newBuilder()
.addHeader("Authorization", "Bearer " + TokenGenerator.getToken())
.build();
return chain.proceed(newRequest);
}
}).build();
return client;
}
public static Retrofit getClient() {
if (retrofit==null) {
retrofit = new Retrofit.Builder()
.baseUrl(BASE_URL)
.client(getOkhttpClient())
.addConverterFactory(JacksonConverterFactory.create())
.build();
}
return retrofit;
}
There are a lot of complex answers here about Retrofit cache but none seem to help me.
How do I cache my code response coming from the Retrofit response?
My App works fine downloading the JSON below but I need to make a cache for it and I never did cache on Android.
I need to open the App offline and get the result from my Retrofit call as if I was online.
public class APIClient {
public static final String BASE_URL = "https://raw.githubusercontent.com/";
private static Retrofit retrofit = null;
public static Retrofit getClient() {
if (retrofit==null) {
OkHttpClient.Builder httpClient = new OkHttpClient.Builder();
httpClient.addInterceptor(new Interceptor() {
#Override
public Response intercept(Interceptor.Chain chain) throws IOException {
Request original = chain.request();
Request request = original.newBuilder()
.method(original.method(), original.body())
.build();
return chain.proceed(request);
}
});
OkHttpClient client = httpClient.build();
retrofit = new Retrofit.Builder()
.baseUrl(BASE_URL)
.addConverterFactory(GsonConverterFactory.create())
.client(client)
.build();
}
return retrofit;
}}
The json response is VERY simple:
{
"fruits":[
{
"name":"Apple",
"image":"https://upload.wikimedia.org/wikipedia/commons/thumb/1/15/Red_Apple.jpg/265px-Red_Apple.jpg",
"price":35
},
{
"name":"Banana",
"image":"https://upload.wikimedia.org/wikipedia/commons/thumb/4/44/Bananas_white_background_DS.jpg/320px-Bananas_white_background_DS.jpg",
"price":12
},
{
"name":"Grapes",
"image":"https://upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Table_grapes_on_white.jpg/320px-Table_grapes_on_white.jpg",
"price":45
},
{
"name":"Pineapple",
"image":"https://upload.wikimedia.org/wikipedia/commons/thumb/c/cb/Pineapple_and_cross_section.jpg/286px-Pineapple_and_cross_section.jpg",
"price":200
},
{
"name":"cherry",
"image":"http://www.desicomments.com/wp-content/uploads/2017/05/Cherry-Image-600x570.jpg",
"price":13
},
{
"name":"clementine",
"image":"http://www.icecreamnation.org/wp-content/uploads/2013/04/Clementine_orange.jpg",
"price":12.4
},
{
"name":"olive",
"image":"https://www.homenaturalcures.com/wp-content/uploads/olive.jpg",
"price":9.5
},
{
"name":"tomato",
"image":"http://cdn2.stylecraze.com/wp-content/uploads/2013/05/tomato-hair-benefits1.jpg",
"price":8.75
},
{
"name":"huckleberry",
"image":"http://farm3.static.flickr.com/2131/2082287810_47339fc93e.jpg",
"price":11.75
},
{
"name":"papaya",
"image":"http://media.mercola.com/assets/images/foodfacts/papaya-nutrition-facts.jpg",
"price":2.75
},
{
"name":"lime",
"image":"https://www.florihana.com/images/stories/virtuemart/product/FLE019%20-%20LIME.jpg",
"price":5.75
},
{
"name":"pear",
"image":"https://www.organicfacts.net/wp-content/uploads/pear.jpg",
"price":4.75
}
]
}
Assuming server respects Cache-Control/If-Modified-Since headers, than all you have to do is to create a Cache object and set it to OkHttpClient. Retrofit will take care of the rest.
int cacheSize = 10 * 1024 * 1024; // 10 MB
Cache cache = new Cache(getCacheDir(), cacheSize);
OkHttpClient okHttpClient = new OkHttpClient.Builder()
.cache(cache)
.build();
Retrofit.Builder builder = new Retrofit.Builder()
.baseUrl("http://10.0.2.2:3000/")
.client(okHttpClient)
.addConverterFactory(GsonConverterFactory.create());
Retrofit retrofit = builder.build();
Source: futurestud.io
Inorder cache our server response using retrofit 2.0 and okHttp, we all need is OkHttpClient, AddNetworkInterceptor add cache interceptor, you can not use. AddInterceptor, also need not both at the same time.
This method requires no server-side operation, no other server-side caching strategy, if the server has its own cache strategy code should be modified accordingly to adapt to the server.
You can refer this link , it helped me to solve my problem
I am using retrofit:2.0.0-beta4 for my android app.
I tried to add a user with Retrofit, the user is correctly created in Database, however I got the following error:
03-14 06:04:27.731 30572-30600/com.lehuo.lehuoandroid D/OkHttp: CALLING POST SP_User_CreateUser....your new user_id:48
{"data":{"user_id":"48","nickname":null,"password":null,"status":null},"status":1,"msg":"OK"}
03-14 06:04:27.731 30572-30600/com.lehuo.lehuoandroid D/OkHttp: <-- END HTTP (147-byte body)
03-14 06:04:27.732 30572-30600/com.lehuo.lehuoandroid E/My Jobs: error while executing job
com.google.gson.stream.MalformedJsonException: Use JsonReader.setLenient(true) to accept malformed JSON at line 1 column 1 path $
at com.google.gson.stream.JsonReader.syntaxError(JsonReader.java:1573)
at com.google.gson.stream.JsonReader.checkLenient(JsonReader.java:1423)
at com.google.gson.stream.JsonReader.doPeek(JsonReader.java:587)
at com.google.gson.stream.JsonReader.peek(JsonReader.java:429)
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:202)
at com.google.gson.TypeAdapter.fromJson(TypeAdapter.java:260)
at retrofit2.converter.gson.GsonResponseBodyConverter.convert(GsonResponseBodyConverter.java:32)
at retrofit2.converter.gson.GsonResponseBodyConverter.convert(GsonResponseBodyConverter.java:23)
at retrofit2.OkHttpCall.parseResponse(OkHttpCall.java:213)
at retrofit2.OkHttpCall.execute(OkHttpCall.java:177)
at retrofit2.ExecutorCallAdapterFactory$ExecutorCallbackCall.execute(ExecutorCallAdapterFactory.java:87)
at com.lehuo.lehuoandroid.async.NetworkJob.callNet(NetworkJob.java:30)
at com.lehuo.lehuoandroid.async.CreateUserJob.onRun(CreateUserJob.java:34)
at com.path.android.jobqueue.BaseJob.safeRun(BaseJob.java:108)
at com.path.android.jobqueue.JobHolder.safeRun(JobHolder.java:60)
at com.path.android.jobqueue.executor.JobConsumerExecutor$JobConsumer.run(JobConsumerExecutor.java:201)
at java.lang.Thread.run(Thread.java:818)
The returned result from server is :
{"data":{"user_id":"48","nickname":null,"password":null,"status":null},"status":1,"msg":"OK"}
This is correct json format, I don't understand why I get such exception?
Here us my interface:
public class ApiResult<T> {
public T data;
public int status;
public String msg;
}
public interface ApiUsers {
#POST("/users/new")
public Call<ApiResult<User>> createUser(#Body User user);
}
public class User {
public int user_id;
public String registration;
public int registration_type;
public String avatar;
public String nickname;
public String password;
public String status;
}
public class Api {
// TODO modify the value
public static final String BASE_URL = "xxx";
private static Api instance = new Api();
public static Api getInstance() {
return instance;
}
private Api(){}
public Retrofit getRetrofit() {
HttpLoggingInterceptor interceptor = new HttpLoggingInterceptor();
interceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
OkHttpClient client = new OkHttpClient.Builder()
.addInterceptor(interceptor)
.retryOnConnectionFailure(true)
.connectTimeout(15, TimeUnit.SECONDS)
.build();
Retrofit retrofit = new Retrofit.Builder()
.baseUrl(BASE_URL)
.client(client)
.addConverterFactory(GsonConverterFactory.create())
.build();
return retrofit;
}
public <S> S createService(Class<S> serviceClass) {
return getRetrofit().create(serviceClass);
}
}
The caller code is:
ApiUsers api = Api.getInstance().createService(ApiUsers.class);
Call<ApiResult<User>> call = api.createUser(user);
CreateUserMessage message = new CreateUserMessage();
callNet(call, message);
Could anyone give any clue?
Finally I solved my problem which is not related to the json lenient mode, something wrong with my POST response (there some other non json output before the json data).
Here is the response from JakeWharton regarding how to set Gson lenient mode:
make sure that you have：compile 'com.google.code.gson:gson:2.6.1'
Gson gson = new GsonBuilder()
.setLenient()
.create();
Retrofit retrofit = new Retrofit.Builder()
.baseUrl(BASE_URL)
.client(client)
.addConverterFactory(GsonConverterFactory.create(gson))
.build();
I solved the problem
Gson gson = new GsonBuilder().setLenient().create();
OkHttpClient client = new OkHttpClient();
Retrofit retrofit = new Retrofit.Builder()
.baseUrl("http://kafe.netai.net/")
.client(client)
.addConverterFactory(GsonConverterFactory.create(gson))
.build();
compile 'com.squareup.retrofit2:retrofit:2.1.0'
compile 'com.squareup.retrofit2:converter-gson:2.1.0'
compile 'com.google.code.gson:gson:2.7'
I solved my problem by removing extra HTML text and other white spaces from my JSON file.
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