Pixel Perfect Pixel Perfect - 5 months ago 246
JSON Question

OkHttp Post Body as JSON

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();
}
});*/


Edit: For anyone stumbling upon this question later, here is my solution that does everything asynchronously. The selected answer IS CORRECT, but my code is a bit different.

String reason = menuItem.getTitle().toString();
if (reason.equals("Copyright"))
reason = "CopyrightInfringement";
JsonObject json = new JsonObject();
json.addProperty("Reason", reason);

String url = mBaseUrl + "/" + id + "/report";

String jsonString = json.toString();
RequestBody body = RequestBody.create(JSON, jsonString);

Request request = new Request.Builder()
.header("X-Client-Type", "Android")
.url(url)
.post(body)
.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();
}
});*/

...

private void runOnUiThread(Runnable task) {
new Handler(Looper.getMainLooper()).post(task);
}


A little more work, mainly because you have to get back to the UI thread to do any UI work, but you have the benefit of HTTPS just...working.

Answer

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);
  Request request = new Request.Builder()
      .url(url)
      .post(body)
      .build();
  Response response = client.newCall(request).execute();
  return response.body().string();
}
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