Essential Books

Basic usage example

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I like to wrap my OkHttp into a class called HttpClient for example, and in this class I have methods for each of the major HTTP verbs, post, get, put and delete, most commonly. (I usually include an interface, in order to keep for it to implement, in order to be able to easily change to a different implementation, if need be): 

public class HttpClient implements HttpClientInterface{

private static final String TAG = OkHttpClient.class.getSimpleName();
public static final MediaType JSON
        = MediaType.parse("application/json; charset=utf-8");

OkHttpClient httpClient = new OkHttpClient();

@Override
public String post(String url, String json) throws IOException {
    Log.i(TAG, "Sending a post request with body:\n" + json + "\n to URL: " + url);

    RequestBody body = RequestBody.create(JSON, json);
    Request request = new Request.Builder()
            .url(url)
            .post(body)
            .build();
    Response response = httpClient.newCall(request).execute();
    return response.body().string();
}

The syntax is the same for put, get and delete except for 1 word (.put(body)) so it might be obnoxious to post that code as well. Usage is pretty simple, just call the appropriate method on some url with some json payload and the method will return a string as a result that you can later use and parse. Let’s assume that the response will be a json, we can create a JSONObject easily from it: 

String response = httpClient.post(MY_URL, JSON_PAYLOAD);
JSONObject json = new JSONObject(response);
// continue to parse the response according to it's structure
Found a mistake? Have a question or improvement idea? Let me know.

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OkHttp:
* OkHttp
* Basic usage example
* Logging interceptor
* Setting up OkHttp
* Rewriting Responses
* Synchronous Get Call
* Asynchronous Get Call
* Posting form parameters
* Posting a multipart request
Table Of Contents
0 Getting Started
1 Layouts
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4 NavigationView
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95 OkHttp
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258 Annotation Processor
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260 Singleton Class for Toast Message
261 Fastjson
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265 Loading Bitmaps Effectively
266 Getting system font names
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268 Convert vietnamese string to english
269 Contributors