Send Post Request with params using Retrofit

Question

I m trying unsuccessfully to consume an API on Android using Retrofit library but while using POSTMAN I can see the expected results    POSTMAN SETTING   The api url  base controller  HTTP Method set to POST  Clicked the from-data or x-www-form-urlencoded  Then i pass the two params on the key value fields      ANDROID RETROFIT SETTING   POST   GetDetailWithMonthWithCode   void getLandingPageReport  Query  code   String code                             Query  monthact   String monthact                            Callback lt LandingPageReport gt  cb     FormUrlEncoded  POST   GetDetailWithMonthWithCode   void getLandingPageReport  Field  code   String code                             Field  monthact   String monthact                            Callback lt LandingPageReport gt  cb     None of this options works  But am getting    as result   UPDATE  Same settings by using the standard HttpClient and HttpPost  class works fine   HttpClient client   new DefaultHttpClient    HttpPost post   new HttpPost url    List lt NameValuePair gt  urlParameters   new ArrayList lt NameValuePair gt     urlParameters add new BasicNameValuePair  code    testcode     urlParameters add new BasicNameValuePair  monthact    feb-2015      post setEntity new UrlEncodedFormEntity urlParameters     HttpResponse response   client execute post     Why I can t do this request and get the correct response in Retrofit   UPDATE 2   POST   GetDetailWithMonthWithCode   void getLandingPageReport  Query  code   String code                             Query  monthact   String monthact                            Callback lt List lt LandingPageReport gt  gt  cb     FormUrlEncoded  POST   GetDetailWithMonthWithCode   void getLandingPageReport  Field  code   String code                             Field  monthact   String monthact                            Callback lt List lt LandingPageReport gt  gt  gt  cb     After playing around I think I ve found the source of the problem  I ve updated my retrofit code to receive List lt LandingPageReport gt   But now this error occur     retrofit RetrofitError  com google gson JsonSyntaxException    java lang IllegalStateException  Expected BEGIN ARRAY but was   BEGIN OBJECT at line 1 column 2 path     The reason is that i consume 2 api s  webapi and wcf   All my other json response are arrays of objects           but in this call I ve received this        GetDetailWithMonthWithCodeResult                     code    test            field1    test                   But still I can t manage to parse the response

User · Answer

Post data to backend using retrofit   implementation  com squareup retrofit2 retrofit 2 8 1   implementation  com squareup retrofit2 converter-gson 2 8 1   implementation  com google code gson gson 2 8 6   implementation  com squareup okhttp3 logging-interceptor 4 5 0   public interface UserService      POST  users      Call lt UserResponse gt  userRegistration  Body UserRegistration      userRegistration        public class ApiClient        private static Retrofit getRetrofit            HttpLoggingInterceptor httpLoggingInterceptor   new HttpLoggingInterceptor            httpLoggingInterceptor setLevel HttpLoggingInterceptor Level BODY            OkHttpClient okHttpClient   new OkHttpClient                  Builder                    addInterceptor httpLoggingInterceptor                   build             Retrofit retrofit   new Retrofit Builder                    baseUrl  http   api larntech net                     addConverterFactory GsonConverterFactory create                     client okHttpClient                   build               return retrofit               public static UserService getService            UserService userService   getRetrofit   create UserService class           return userService

User · Answer

build gradle        compile  com google code gson gson 2 6 2         compile  com squareup retrofit2 retrofit 2 1 0    compulsory        compile  com squareup retrofit2 converter-gson 2 1 0    for retrofit conversion   Login APi Put Two Parameters                 UserId    1234            Password   1234          Login Response                 UserId    1234            FirstName    Keshav            LastName    Gera            ProfilePicture    312 113 221 1 GEOMVCAPI Files 1 500534651736E12p jpg          APIClient java      import retrofit2 Retrofit      import retrofit2 converter gson GsonConverterFactory       class APIClient            public static final String BASE URL    Your Base 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                    APIInterface interface      interface APIInterface             POST  LoginController Login           Call lt LoginResponse gt  createUser  Body LoginResponse login           Login Pojo      package pojos       import com google gson annotations SerializedName       public class LoginResponse              SerializedName  UserId           public String UserId           SerializedName  FirstName           public String FirstName           SerializedName  LastName           public String LastName           SerializedName  ProfilePicture           public String ProfilePicture           SerializedName  Password           public String Password           SerializedName  ResponseCode           public String ResponseCode           SerializedName  ResponseMessage           public String ResponseMessage           public LoginResponse String UserId  String Password                this UserId   UserId              this Password   Password                     public String getUserId                 return UserId                     public String getFirstName                 return FirstName                     public String getLastName                 return LastName                     public String getProfilePicture                 return ProfilePicture                     public String getResponseCode                 return ResponseCode                     public String getResponseMessage                 return ResponseMessage                    MainActivity      package com keshav retrofitloginexampleworkingkeshav       import android app Dialog      import android os Bundle      import android support v7 app AppCompatActivity      import android util Log      import android view View      import android widget Button      import android widget EditText      import android widget TextView      import android widget Toast       import pojos LoginResponse      import retrofit2 Call      import retrofit2 Callback      import retrofit2 Response      import utilites CommonMethod       public class MainActivity extends AppCompatActivity            TextView responseText          APIInterface apiInterface           Button loginSub          EditText et Email          EditText et Pass          private Dialog mDialog          String userId          String password            Override         protected void onCreate Bundle savedInstanceState                super onCreate savedInstanceState               setContentView R layout activity main                apiInterface   APIClient getClient   create APIInterface class                loginSub    Button  findViewById R id loginSub               et Email    EditText  findViewById R id edtEmail               et Pass    EditText  findViewById R id edtPass                loginSub setOnClickListener new View OnClickListener                      Override                 public void onClick View v                        if  checkValidation                              if  CommonMethod isNetworkAvailable MainActivity this                               loginRetrofit2Api userId  password                           else                             CommonMethod showAlert  Internet Connectivity Failure   MainActivity this                                                                              private void loginRetrofit2Api String userId  String password                final LoginResponse login   new LoginResponse userId  password               Call lt LoginResponse gt  call1   apiInterface createUser login               call1 enqueue new Callback lt LoginResponse gt                       Override                 public void onResponse Call lt LoginResponse gt  call  Response lt LoginResponse gt  response                        LoginResponse loginResponse   response body                         Log e  keshav    loginResponse 1 -- gt      loginResponse                       if  loginResponse    null                            Log e  keshav    getUserId          -- gt       loginResponse getUserId                             Log e  keshav    getFirstName       -- gt       loginResponse getFirstName                             Log e  keshav    getLastName        -- gt       loginResponse getLastName                             Log e  keshav    getProfilePicture  -- gt       loginResponse getProfilePicture                              String responseCode   loginResponse getResponseCode                            Log e  keshav    getResponseCode  -- gt       loginResponse getResponseCode                             Log e  keshav    getResponseMessage  -- gt       loginResponse getResponseMessage                             if  responseCode    null  amp  amp  responseCode equals  404                                  Toast makeText MainActivity this   Invalid Login Details  n Please try again   Toast LENGTH SHORT  show                              else                               Toast makeText MainActivity this   Welcome     loginResponse getFirstName    Toast LENGTH SHORT  show                                                                                        Override                 public void onFailure Call lt LoginResponse gt  call  Throwable t                        Toast makeText getApplicationContext     onFailure called    Toast LENGTH SHORT  show                        call cancel                                                         public boolean checkValidation                 userId   et Email getText   toString                password   et Pass getText   toString                 Log e  Keshav    userId is - gt      userId               Log e  Keshav    password is - gt      password                if  et Email getText   toString   trim   equals                        CommonMethod showAlert  UserId Cannot be left blank   MainActivity this                   return false                else if  et Pass getText   toString   trim   equals                        CommonMethod showAlert  password Cannot be left blank   MainActivity this                   return false                            return true                    CommonMethod java      public class CommonMethod             public static final String DISPLAY MESSAGE ACTION                    com codecube broking gcm            public static final String EXTRA MESSAGE    message            public  static boolean isNetworkAvailable Context ctx                ConnectivityManager connectivityManager                        ConnectivityManager ctx getSystemService Context CONNECTIVITY SERVICE               NetworkInfo activeNetworkInfo   connectivityManager getActiveNetworkInfo                return activeNetworkInfo    null  amp  amp  activeNetworkInfo isConnected                       public static void showAlert String message  Activity context                 final AlertDialog Builder builder   new AlertDialog Builder context               builder setMessage message  setCancelable false                       setPositiveButton  OK   new DialogInterface OnClickListener                             public void onClick DialogInterface dialog  int id                                                                   try                   builder show                  catch  Exception e                    e printStackTrace                                     activity main xml       lt LinearLayout android layout width  wrap content          android layout height  match parent          android focusable  true          android focusableInTouchMode  true          android orientation  vertical          xmlns android  http   schemas android com apk res android  gt                lt ImageView                 android id    id imgLogin                  android layout width  200dp                  android layout height  150dp                  android layout gravity  center                  android layout marginTop  20dp                  android padding  5dp                  android background   mipmap ic launcher round                    gt                lt TextView                 android id    id txtLogo                  android layout width  wrap content                  android layout height  wrap content                  android layout below    id imgLogin                  android layout centerHorizontal  true                  android text  Holostik Track and Trace                  android textSize  20dp                  android visibility  gone    gt                lt android support design widget TextInputLayout                 android id    id textInputLayout1                  android layout width  fill parent                  android layout height  wrap content                  android layout marginLeft   dimen box layout margin left                  android layout marginRight   dimen box layout margin right                  android layout marginTop  8dp                  android padding   dimen text input padding  gt                    lt EditText                     android id    id edtEmail                      android layout width  fill parent                      android layout height  wrap content                      android layout marginTop  5dp                      android ems  10                      android fontFamily  sans-serif                      android gravity  top                      android hint  Login ID                      android maxLines  10                      android paddingLeft   dimen edit input padding                      android paddingRight   dimen edit input padding                      android paddingTop   dimen edit input padding                      android singleLine  true  gt  lt  EditText gt                lt  android support design widget TextInputLayout gt                lt android support design widget TextInputLayout                 android id    id textInputLayout2                  android layout width  fill parent                  android layout height  wrap content                  android layout below    id textInputLayout1                  android layout marginLeft   dimen box layout margin left                  android layout marginRight   dimen box layout margin right                  android padding   dimen text input padding  gt                    lt EditText                     android id    id edtPass                      android layout width  match parent                      android layout height  wrap content                      android focusable  true                      android fontFamily  sans-serif                      android hint  Password                      android inputType  textPassword                       android singleLine  true    gt                lt  android support design widget TextInputLayout gt                lt RelativeLayout                 android id    id rel12                  android layout width  wrap content                  android layout height  wrap content                  android layout below    id textInputLayout2                  android layout marginTop  10dp                  android layout marginLeft  10dp                   gt                    lt Button                     android id    id loginSub                      android layout width  wrap content                      android layout height  45dp                      android layout alignParentRight  true                      android layout centerVertical  true                      android background   drawable border button                      android paddingLeft  30dp                      android paddingRight  30dp                      android layout marginRight  10dp                      android text  Login                      android textColor   ffffff    gt                   lt  RelativeLayout gt        lt  LinearLayout gt

User · Answer

The good way in my opinion is to send it in the POST Body this means you ll have a create a new POJO but some might like this implementation the most   public interface APIInterface        POST   GetDetailWithMonthWithCode       List lt LandingPageReport gt  getLandingPageReport  Body Report report       Then make your POJO with a constructor  getters and setters   public static class Report       private String code      private String monthact       public Report String code  String monthact            this code   code          this monthact   monthact                  Getters and Setters        And just call it the normal way   Call lt List lt Report gt  gt  request   apiInterface      createRetrofitAPIInterface        getLandingPageReport new Report code  monthact

User · Answer

This is a simple solution where we do not need to use JSON  public interface RegisterAPI    FormUrlEncoded  POST   RetrofitExample insert php   public void insertUser           Field  name   String name           Field  username   String username           Field  password   String password           Field  email   String email          Callback lt Response gt  callback       method to send data   private void insertUser          Here we will handle the http request to insert user to mysql db       Creating a RestAdapter     RestAdapter adapter   new RestAdapter Builder                setEndpoint ROOT URL    Setting the Root URL              build      Finally building the adapter        Creating object for our interface     RegisterAPI api   adapter create RegisterAPI class          Defining the method insertuser of our interface     api insertUser                 Passing the values by getting it from editTexts             editTextName getText   toString                editTextUsername getText   toString                editTextPassword getText   toString                editTextEmail getText   toString                   Creating an anonymous callback             new Callback lt Response gt                       Override                 public void success Response result  Response response                          On success we will read the server s output using bufferedreader                       Creating a bufferedreader object                     BufferedReader reader   null                         An string to store output from the server                     String output                            try                             Initializing buffered reader                         reader   new BufferedReader new InputStreamReader result getBody   in                                 Reading the output in the string                         output   reader readLine                          catch  IOException e                            e printStackTrace                                                 Displaying the output as a toast                     Toast makeText MainActivity this  output  Toast LENGTH LONG  show                                        Override                 public void failure RetrofitError error                          If any error occured displaying the error as toast                     Toast makeText MainActivity this  error toString   Toast LENGTH LONG  show                                               Now we can get the post request using php aur any other server side scripting    Source Android Retrofit Tutorial

User · Answer

You should create an interface for that like it is working well  public interface Service        FormUrlEncoded      POST  v1 EmergencyRequirement php  op addPatient       Call lt Result gt  addPerson  Field  BloodGroup   String bloodgroup              Field  Address   String Address              Field  City   String city   Field  ContactNumber   String  contactnumber               Field  PatientName   String name               Field  Time   String Time   Field  DonatedBy   String donar       or you can visit to http   teachmeandroidhub blogspot com 2018 08 post-data-using-retrofit-in-android html  and youcan vist to https   github com rajkumu12 GetandPostUsingRatrofit

User · Answer

I have found the solution  The issue was a problem in my classes structure  So i updated them like the following samples   public class LandingPageReport        private ArrayList lt LandingPageReportItem gt  GetDetailWithMonthWithCodeResult            Getter Setter methods    public class LandingPageReportItem        private String code       private String field1            Getter Setter methods     And then i use this retrofit configuration   POST   GetDetailWithMonthWithCode   void getLandingPageReport  Field  code   String code                             Field  monthact   String monthact                            Callback lt LandingPageReport gt  cb

[android] Send Post Request with params using Retrofit

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