How can I get a JSON status that my server is busy?

Question

My JSON Code:

Response.Listener<String> responseListener = new Response.Listener<String>() {
                    @Override
                    public void onResponse(String response) {
                        try {
                            JSONObject jsonResponse = new JSONObject(response);
                            int success = jsonResponse.getInt("success");

                            if (success == 0) {

                            }
                            if (success == 1) { 

                            }
                        } catch (JSONException e) {
                            e.printStackTrace();
                        }
                    }
                };
                nRequest nRequest = new nRequest(edtTextReg.getText().toString(), responseListener);
                RequestQueue queue = Volley.newRequestQueue(login.this);
                queue.add(nRequest);

How can I find a way that JSON give me the status "server is busy"? Busy means for example: thousands of people use my server.

That definition of busy is basically useless. How does your code know how many people are using the server? — tadman, Jul 04 '17 at 17:26
This is my question. How can I find a way that JSON give me the status "server is busy" — SilverBlue, Jul 04 '17 at 17:28
I need this for a login request. The user need a Toast, that the Server is busy — SilverBlue, Jul 04 '17 at 17:33
If your server's really slammed you may need to do this at the HTTP server level and have a JSON "error document" configured. — tadman, Jul 04 '17 at 17:44

score 1 · Answer 1 · answered Jul 04 '17 at 18:06

Http status code for server overload is 503.

503 - Service Unavailable A 503 status code is most often seen on extremely busy servers, and it indicates that the server was unable to complete the request due to a server overload.

so your code should be something like this:

                @Override

                public void onResponse(String response) {
                    try {
                        JSONObject jsonResponse = new JSONObject(response);

                 int status = jsonResponse.getStatusLine().getStatusCode();
                      int success = jsonResponse.getInt("success");
                        if (status == 503) {
                          // 
                        }

                        if (success == 0) {

                        }
                        if (success == 1) { 

                        }
                    } catch (JSONException e) {
                        e.printStackTrace();
                    }
                }
            };

For getting the status code correctly you could refer to this url: https://stackoverflow.com/questions/22948006/http-status-code-in-android-volley-when-error-networkresponse-is-null — Sakti Behera, Jul 05 '17 at 17:57

score 0 · Answer 2 · answered Jul 04 '17 at 17:41

If your server is busy you don't want it to spend time rendering a JSON, moreover, if server load is in your mind you might end up putting your application behind a load-balancer and those usually knows nothing about JSON.

The proper way to handle this situation is to parse the correct HTTP status code, usually 429, see this answer

To access the status code your onResponse should look like this:

@Override    
public void onSuccess(int statusCode, String content) {
}

How can I get a JSON status that my server is busy?

2 Answers2