OkHttp Post Body as JSON

Question

So, back when I was using Koush's Ion, I was able to add a json body to my posts with a simple .setJsonObjectBody(json).asJsonObject()

I'm moving over to OkHttp, and I really don't see a good way to do that. I'm getting error 400's all over the place.

Anyone have any ideas?

I've even tried manually formatting it as a json string.

String reason = menuItem.getTitle().toString(); JsonObject json = new JsonObject(); json.addProperty("Reason", reason);  String url = mBaseUrl + "/" + id + "/report";  Request request = new Request.Builder()         .header("X-Client-Type", "Android")         .url(url)         .post(RequestBody                 .create(MediaType                     .parse("application/json"),                         "{\"Reason\": \"" + reason + "\"}"                 ))         .build();  client.newCall(request).enqueue(new com.squareup.okhttp.Callback() {     @Override     public void onFailure(Request request, IOException throwable) {         throwable.printStackTrace();     }      @Override     public void onResponse(Response response) throws IOException {         if (!response.isSuccessful()) throw new IOException(                 "Unexpected code " + response);         runOnUiThread(new Runnable() {             @Override             public void run() {                 Toast.makeText(context, "Report Received", Toast.LENGTH_SHORT).show();             }         });     } });  /*Ion.with(getContext(), url)         .setHeader("X-Client-Type", "Android")         .setJsonObjectBody(json)         .asJsonObject()         .setCallback(new FutureCallback<JsonObject>() {             @Override             public void onCompleted(Exception e, JsonObject result) {                 Toast.makeText(context, "Report Received", Toast.LENGTH_SHORT).show();             }         });*/ 

Answer 1

Just use JSONObject.toString(); method. And have a look at OkHttp's tutorial:

public static final MediaType JSON     = MediaType.parse("application/json; charset=utf-8");  OkHttpClient client = new OkHttpClient();  String post(String url, String json) throws IOException {   RequestBody body = RequestBody.create(json, JSON); // new   // RequestBody body = RequestBody.create(JSON, json); // old   Request request = new Request.Builder()       .url(url)       .post(body)       .build();   Response response = client.newCall(request).execute();   return response.body().string(); } 

Answer 2

You can create your own JSONObject then toString().

Remember run it in the background thread like doInBackground in AsyncTask.

OkHttp version > 4:

import okhttp3.MediaType.Companion.toMediaType  // create your json here JSONObject jsonObject = new JSONObject(); try {     jsonObject.put("KEY1", "VALUE1");     jsonObject.put("KEY2", "VALUE2"); } catch (JSONException e) {     e.printStackTrace(); }  val client = OkHttpClient() val mediaType = "application/json; charset=utf-8".toMediaType() val body = jsonObject.toString().toRequestBody(mediaType) val request: Request = Request.Builder()             .url("https://YOUR_URL/")             .post(body)             .build()  var response: Response? = null try {     response = client.newCall(request).execute()     val resStr = response.body!!.string() } catch (e: IOException) {     e.printStackTrace() }     

OkHttp version 3:

// create your json here JSONObject jsonObject = new JSONObject(); try {     jsonObject.put("KEY1", "VALUE1");     jsonObject.put("KEY2", "VALUE2"); } catch (JSONException e) {     e.printStackTrace(); }    OkHttpClient client = new OkHttpClient();   MediaType JSON = MediaType.parse("application/json; charset=utf-8");   // put your json here   RequestBody body = RequestBody.create(JSON, jsonObject.toString());   Request request = new Request.Builder()                     .url("https://YOUR_URL/")                     .post(body)                     .build();    Response response = null;   try {       response = client.newCall(request).execute();       String resStr = response.body().string();   } catch (IOException e) {       e.printStackTrace();   }