How to use OKHTTP to make a post request

Question

I read some examples which are posting jsons to the server   some one says       OkHttp is an implementation of the HttpUrlConnection interface   provided by Java  It provides an input stream for writing content and   doesn t know  or care  about what format that content is    Now I want to make a normal post to the URL with params of name and password   It means I need to do encode the name and value pair into stream by myself

User · Answer

You can make it like this      MediaType JSON   MediaType parse  quot application json  charset utf-8 quot        RequestBody body   RequestBody create JSON   quot   quot jsonExample quot   quot value quot   quot         OkHttpClient client   new OkHttpClient         Request request   new Request Builder                url url               post body               addHeader  quot Authorization quot    quot header value quot     Notice this request has header if you don t need to send a header just erase this part              build         Call call   client newCall request        call enqueue new Callback              Override         public void onFailure Request request  IOException e                 Log e  quot HttpService quot    quot onFailure   Request was   quot    request                e printStackTrace                        Override         public void onResponse Response r  throws IOException                response   r body   string                 Log e  quot response  quot    quot onResponse     quot    response

User · Answer

Here is my method to do post request  first pass in method map and data like  HashMap lt String  String gt  param   new HashMap lt String  String gt      param put  Name   name   param put  Email   email   param put  Password   password   param put  Img Name         final JSONObject result   doPostRequest map Url    public static JSONObject doPostRequest HashMap lt String  String gt  data  String url         try           RequestBody requestBody          MultipartBuilder mBuilder   new MultipartBuilder   type MultipartBuilder FORM            if  data    null                  for  String key   data keySet                      String value   data get key                   Utility printLog  Key Values   key    -----------------    value                    mBuilder addFormDataPart key  value                            else               mBuilder addFormDataPart  temp    temp                      requestBody   mBuilder build              Request request   new Request Builder                    url url                   post requestBody                   build             OkHttpClient client   new OkHttpClient            Response response   client newCall request  execute            String responseBody   response body   string            Utility printLog  URL   url           Utility printLog  Response   responseBody           return new JSONObject responseBody          catch  UnknownHostException   UnsupportedEncodingException e             JSONObject jsonObject new JSONObject             try               jsonObject put  status   false                jsonObject put  message  e getLocalizedMessage               catch  JSONException e1                e1 printStackTrace                      Log e TAG   Error      e getLocalizedMessage           catch  Exception e            e printStackTrace            JSONObject jsonObject new JSONObject             try               jsonObject put  status   false                jsonObject put  message  e getLocalizedMessage               catch  JSONException e1                e1 printStackTrace                      Log e TAG   Other Error      e getLocalizedMessage               return null

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public static JSONObject doPostRequestWithSingleFile String url HashMap lt String  String gt  data  File file String fileParam             try               final MediaType MEDIA TYPE PNG   MediaType parse  image png                 RequestBody requestBody              MultipartBuilder mBuilder   new MultipartBuilder   type MultipartBuilder FORM                for  String key   data keySet                      String value   data get key                   Utility printLog  Key Values   key    -----------------    value                    mBuilder addFormDataPart key  value                              if file  null                    Log e  File Name   file getName                                     if  file exists                          mBuilder addFormDataPart fileParam  file getName    RequestBody create MEDIA TYPE PNG  file                                                requestBody   mBuilder build                Request request   new Request Builder                        url url                       post requestBody                       build                 OkHttpClient client   new OkHttpClient                Response response   client newCall request  execute                String result response body   string                Utility printLog  Response  result                  return new JSONObject result              catch  UnknownHostException   UnsupportedEncodingException e                Log e TAG   Error      e getLocalizedMessage                 JSONObject jsonObject new JSONObject                 try                   jsonObject put  status   false                    jsonObject put  message  e getLocalizedMessage                   catch  JSONException e1                    e1 printStackTrace                            catch  Exception e                Log e TAG   Other Error      e getMessage                 JSONObject jsonObject new JSONObject                 try                   jsonObject put  status   false                    jsonObject put  message  e getLocalizedMessage                   catch  JSONException e1                    e1 printStackTrace                                    return null            public static JSONObject doGetRequest HashMap lt String  String gt  param String url            JSONObject result   null          String response          Set keys   param keySet             int count   0          for  Iterator i   keys iterator    i hasNext                    count                String key    String  i next                String value    String  param get key               if  count    param size                      Log e  Key  key                      Log e  Value  value                      url    key         URLEncoder encode value                  else                   Log e  Key  key                      Log e  Value  value                       url    key         URLEncoder encode value      amp                                        try               url   URLEncoder encode url   utf-8              catch  UnsupportedEncodingException e                e printStackTrace                        Log e  URL   url           OkHttpClient client   new OkHttpClient             Request request   new Request Builder                    url url                   build            Response responseClient   null          try                 responseClient   client newCall request  execute                response   responseClient body   string                result   new JSONObject response               Log e  response   response                              catch  Exception e                JSONObject jsonObject new JSONObject                 try                   jsonObject put  status   false                    jsonObject put  message  e getLocalizedMessage                     return  jsonObject                catch  JSONException e1                    e1 printStackTrace                              e printStackTrace                       return result

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protected Void doInBackground String    movieIds                    for    count  lt   1  count                          try                           Thread sleep 1000                         catch  InterruptedException e                            e printStackTrace                                                             Resources res   getResources                    String web link   res getString R string website                    OkHttpClient client   new OkHttpClient                     RequestBody formBody   new FormBody Builder                            add  name   name                           add  bsname   bsname                           add  email   email                           add  phone   phone                           add  whatsapp   wapp                           add  location   location                           add  country   country                           add  state   state                           add  city   city                           add  zip   zip                           add  fb   fb                           add  tw   tw                           add  in   in                           add  age   age                           add  gender   gender                           add  image   encodeimg                           add  uid   user id                           build                    Request request   new Request Builder                            url web link  edit profile php                            post formBody                           build                     try                       Response response   client newCall request  execute                         JSONArray array   new JSONArray response body   string                         JSONObject object   array getJSONObject 0                        hashMap put  msg  object getString  msgtype                         hashMap put  msg  object getString  msg                            Do something with the response                    catch  IOException e                        e printStackTrace                      catch  JSONException e                        e printStackTrace                                         return null

User · Answer

If you want to post parameter in okhttp as body content which can be encrypted string with content-type as  quot application x-www-form-urlencoded quot  you can first use URLEncoder to encode the data and then use   final MediaType MEDIA TYPE MARKDOWN   MediaType parse  quot application x-www-form-urlencoded quot     okhttp3 Request request   new okhttp3 Request Builder        url urlOfServer       post RequestBody create MEDIA TYPE MARKDOWN  yourBodyDataToPostOnserver        build     you can add header according to your requirement

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As per the docs  OkHttp version 3 replaced FormEncodingBuilder with FormBody and FormBody Builder    so the old examples won t work anymore      Form and Multipart bodies are now modeled  We ve replaced the opaque   FormEncodingBuilder with the more powerful FormBody and   FormBody Builder combo        Similarly we ve upgraded MultipartBuilder into   MultipartBody  MultipartBody Part  and MultipartBody Builder    So if you re using OkHttp 3 x try the following example   OkHttpClient client   new OkHttpClient     RequestBody formBody   new FormBody Builder            add  message    Your message            build    Request request   new Request Builder            url  http   www foo bar index php            post formBody           build     try       Response response   client newCall request  execute            Do something with the response    catch  IOException e        e printStackTrace

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private final OkHttpClient client   new OkHttpClient       public void run   throws Exception       RequestBody formBody   new FormEncodingBuilder            add  search    Jurassic Park            build        Request request   new Request Builder            url  https   en wikipedia org w index php            post formBody           build         Response response   client newCall request  execute        if   response isSuccessful    throw new IOException  Unexpected code     response        System out println response body   string

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OkHttp POST request with token in header         RequestBody requestBody   new MultipartBody Builder                setType MultipartBody FORM               addFormDataPart  search    a                addFormDataPart  model    1                addFormDataPart  in    1                addFormDataPart  id    1                build        OkHttpClient client   new OkHttpClient        okhttp3 Request request   new okhttp3 Request Builder                url  https   somedomain com api                post requestBody               addHeader  token    eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9 eyJpc3MiOiIkMnkkMTAkZzZrLkwySlFCZlBmN1RTb3g3bmNpTzltcVwvemRVN2JtVC42SXN0SFZtbzZHNlFNSkZRWWRlIiwic3ViIjo0NSwiaWF0IjoxNTUwODk4NDc0LCJleHAiOjE1NTM0OTA0NzR9 tefIaPzefLftE7q0yKI8O87XXATwowEUk XkAOOQzfw                addHeader  cache-control    no-cache                addHeader  Postman-Token    7e231ef9-5236-40d1-a28f-e5986f936877                build         client newCall request  enqueue new Callback              Override         public void onFailure Call call  IOException e                e printStackTrace                        Override         public void onResponse Call call  okhttp3 Response response  throws IOException               if  response isSuccessful                      final String myResponse   response body   string                     MainActivity this runOnUiThread new Runnable                          Override                     public void run                             Log d  response   myResponse                           progress hide

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You should check tutorials on lynda com  Here is an example of how to encode the parameters  make HTTP request and then parse response to json object   public JSONObject getJSONFromUrl String str url  List lt NameValuePair gt  params                  String reply str   null          BufferedReader reader   null           try               URL url   new URL str url               OkHttpClient client   new OkHttpClient                HttpURLConnection con   client open url                                          con setDoOutput true               OutputStreamWriter writer   new OutputStreamWriter con getOutputStream                 writer write getEncodedParams params                writer flush                     StringBuilder sb   new StringBuilder                reader   new BufferedReader new InputStreamReader con getInputStream                             String line              while   line   reader readLine       null                    sb append line     n                                         reply str   sb toString                            catch  Exception e                e printStackTrace                return null            finally               if  reader    null                    try                       reader close                      catch  IOException e                        e printStackTrace                        return null                                                        try parse the string to a JSON object  There are better ways to parse data          try               jObj   new JSONObject reply str                         catch  JSONException e                   Log e  JSON Parser    Error parsing data     e toString                          return jObj               in this case it s NameValuePair  but you can use any container     public String getEncodedParams List lt NameValuePair gt  params            StringBuilder sb   new StringBuilder            for  NameValuePair nvp   params                String key   nvp getName                String param value   nvp getValue                String value   null              try                   value   URLEncoder encode param value   UTF-8                  catch  UnsupportedEncodingException e                    e printStackTrace                               if  sb length    gt  0                    sb append   amp                               sb append key         value                     return sb toString

User · Answer

You need to encode it yourself by escaping strings with URLEncoder and joining them with     and   amp    Or you can use FormEncoder from Mimecraft which gives you a handy builder   FormEncoding fe   new FormEncoding Builder        add  name    Lorem Ipsum        add  occupation    Filler Text        build

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This is one of the possible solutions to implementing an OKHTTP post request without a request body   RequestBody reqbody   RequestBody create null  new byte 0      Request Builder formBody   new Request Builder   url url  method  POST  reqbody  header  Content-Length    0    clientOk newCall formBody build    enqueue OkHttpCallBack

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Add the following to the build gradle      compile  com squareup okhttp3 okhttp 3 7 0     Create a new thread  in the new thread add the following code     OkHttpClient client   new OkHttpClient    MediaType MIMEType  MediaType parse  application json  charset utf-8    RequestBody requestBody   RequestBody create  MIMEType        Request request   new Request Builder   url url  post requestBody  build    Response response   client newCall request  execute

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The current accepted answer is out of date  Now if you want to create a post request and add parameters to it you should user MultipartBody Builder as Mime Craft now is deprecated   RequestBody requestBody   new MultipartBody Builder            setType MultipartBody FORM           addFormDataPart  somParam    someValue            build     Request request   new Request Builder            url BASE URL   route           post requestBody           build

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To add okhttp as a dependency do as follows   right click on the app on android studio open  module settings   dependencies -   add library dependency  -   com squareup okhttp3 okhttp 3 10 0  -  add -  ok     now you have okhttp as a dependency  Now design a interface as below so we can have the callback to our activity once the network response received   public interface NetworkCallback        public void getResponse String res       I create a class named NetworkTask so i can use this class to handle all the network requests      public class NetworkTask extends AsyncTask lt String   String  String gt        public NetworkCallback instance      public String url       public String json      public int task       OkHttpClient client   new OkHttpClient        public static final MediaType JSON               MediaType parse  application json  charset utf-8         public NetworkTask                public NetworkTask NetworkCallback ins  String url  String json  int task           this instance   ins          this url   url          this json   json          this task   task              public String doGetRequest   throws IOException           Request request   new Request Builder                    url url                   build             Response response   client newCall request  execute            return response body   string               public String doPostRequest   throws IOException           RequestBody body   RequestBody create JSON  json           Request request   new Request Builder                    url url                   post body                   build            Response response   client newCall request  execute            return response body   string                Override     protected String doInBackground String   params            try               String response                   switch task                   case 1                       response   doGetRequest                        break                  case 2                      response   doPostRequest                        break                             return response           catch  Exception e               e printStackTrace                      return null              Override     protected void onPostExecute String s            super onPostExecute s           instance getResponse s             now let me show how to get the callback to an activity      public class MainActivity extends AppCompatActivity implements NetworkCallback      String postUrl    http   your-post-url-goes-here       String getUrl    http   your-get-url-goes-here       Button doGetRq      Button doPostRq        Override     protected void onCreate Bundle savedInstanceState            super onCreate savedInstanceState           setContentView R layout activity main           Button button   findViewById R id button            doGetRq   findViewById R id button2       doPostRq   findViewById R id button1            doPostRq setOnClickListener new View OnClickListener                  Override             public void onClick View v                    MainActivity this sendPostRq                                       doGetRq setOnClickListener new View OnClickListener                  Override             public void onClick View v                    MainActivity this sendGetRq                                         public void sendPostRq            JSONObject jo   new JSONObject            try               jo put  email    yourmail                jo put  password   password               catch  JSONException e                e printStackTrace                     2 because post rq is for the case 2         NetworkTask t   new NetworkTask this  postUrl   jo toString    2           t execute postUrl              public void sendGetRq            1 because get rq is for the case 1         NetworkTask t   new NetworkTask this  getUrl   jo toString    1           t execute getUrl               Override     public void getResponse String res           here is the response from NetworkTask class     System out println res

[java] How to use OKHTTP to make a post request?

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