OkHTTP (v3.0.0-RC1) Post Request with Parameters

Question

UPDATE I'm using okHttp library, version 3.0.0 RC-1. I have a url and I have to send a post request with parameters. For example: https://myurl.com/login?username=123456&password=12345

I have code like this:

 public String okHttpRequest(){

    try {
        final TrustManager[] trustAllCerts = new TrustManager[]{new X509TrustManager() {
            @Override
            public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {

            }

            @Override
            public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {

            }

            @Override
            public X509Certificate[] getAcceptedIssuers() {
                return null;
            }
        }
        };

        final SSLContext sslContext = SSLContext.getInstance("SSL");
        sslContext.init(null,trustAllCerts, new java.security.SecureRandom());
        final javax.net.ssl.SSLSocketFactory sslSocketFactory = sslContext.getSocketFactory();

        OkHttpClient.Builder builder = new OkHttpClient.Builder();
        builder.sslSocketFactory(sslSocketFactory);
        builder.hostnameVerifier(new HostnameVerifier() {
            @Override
            public boolean verify(String hostname, SSLSession session) {
                return true;
            }
        }).build();
        final OkHttpClient client = new OkHttpClient();

        HttpUrl url = HttpUrl.parse("https://myUrl.com/login").newBuilder()
                .addQueryParameter("username", "123456")
                .addQueryParameter("password", "123456")
                .build();
        Request request = new Request.Builder()
                .url(url)
                .build();


        client.newCall(request).enqueue(new Callback() {
            @Override
            public void onFailure(Request request, IOException e) {
                Log.d("Request:", "Is NOT sent " + request.toString() + " METHOD: " + request.method());
                e.printStackTrace();
            }

            @Override
            public void onResponse(Response response) throws IOException {
                Log.d("Request:", "Is sent " + response.toString());
            }
        });
    }catch(Exception e){
        e.printStackTrace();
    }
    return "okHttp is Working!!! ";

}    

Whenever I try, It fails, so onFailure method is executing. What is the problem? Am I adding request params incorrectly? Please help...

Answer 1

Yes, you are adding the query parameters incorrectly. Here's how it should be done:

final OkHttpClient client = new OkHttpClient();

HttpUrl url = HttpUrl.parse("https://myUrl.com/login").newBuilder()
        .addQueryParameter("password", "123456")
        .addQueryParameter("username", "123456")
        .build();

Request request = new Request.Builder()
       .url(url)
       .build();
(...)

The problem is that you are submitting your data in the body of the request, as if it were a HTML form submit, and not as a query parameter, as you intended. Using HttpUrl allows you to add query parameters to your URL.

Worth noting that you can also simply do this:

Request request = new Request.Builder()
       .url("https://myurl.com/login?username=123456&password=12345")
       .build();

So:

• Use HttpUrl and it's builder to create your URL and add parameters.

• Use FormBody to create the content of your request (as if it were a html form you're submitting), if you need it.

Also, make sure you have internet permission in your app, make sure you have an active internet connection, etc, but it seems you already have.

Note: this is for OkHttp 2.x (since that's what I use), but it should be the same or similar for 3.x.

Let me know if it works for you.