Android™

HTTP POST JSON (application/json)

See more HTTP Examples

Demonstrates how to send a JSON POST using the application/json content-type. Android™

// Important: Don't forget to include the call to System.loadLibrary
// as shown at the bottom of this code sample.
package com.test;

import android.app.Activity;
import com.chilkatsoft.*;

import android.widget.TextView;
import android.os.Bundle;

public class SimpleActivity extends Activity {

  private static final String TAG = "Chilkat";

  // Called when the activity is first created.
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    boolean success = false;

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkHttpRequest req = new CkHttpRequest();
    CkHttp http = new CkHttp();

    // If any custom headers need to be included with the POST, add them
    // by calling SetRequestHeader

    // Note: An application should never explicitly set the Content-Length header.
    // The Content-Length is automatically computed and added by Chilkat.

    // Here are some examples of custom headers.  

    // Perhaps your particular app needs some sort of custom-computed Authorization header...
    http.SetRequestHeader("Authorization","my-custom-computed-auth-value");

    // Another custom header for some hypothetical app:
    http.SetRequestHeader("X-Pass-Timestamp","my-custom-computed-timestamp-value");

    // The following "Accept" header may be set, but it really isn't necessary:
    http.SetRequestHeader("Accept","application/json");

    String jsonText = "{ some JSON text ... }";

    // To use SSL/TLS, simply use "https://" in the URL.

    CkHttpResponse resp = new CkHttpResponse();
    success = http.HttpStr("POST","http://www.someserver.com/someJsonEndpoint",jsonText,"utf-8","application/json",resp);
    if (success == false) {
        Log.i(TAG, http.lastErrorText());
        return;
        }

    // Display the JSON response.
    Log.i(TAG, resp.bodyStr());

  }

  static {
      System.loadLibrary("chilkat");

      // Note: If the incorrect library name is passed to System.loadLibrary,
      // then you will see the following error message at application startup:
      //"The application <your-application-name> has stopped unexpectedly. Please try again."
  }
}