(Android™) Amazon SP-API Request an LWA access token

See more Amazon SP-API Examples

Request an LWA access token, make a secure HTTP POST to the LWA authentication server (https://api.amazon.com/auth/o2/token)

For more information, see https://developer-docs.amazon.com/sp-api/docs/connecting-to-the-selling-partner-api

Chilkat Android™ Downloads Android™ Java Libraries Android C/C++ Libraries

// 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);

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

    CkHttp http = new CkHttp();

    // Implements the following CURL command:

    // curl -X POST https://example.com/auth/o2/token \
    //   -H "Host: api.amazon.com" \
    //   -H "Content-Type: application/x-www-form-urlencoded;charset=UTF-8" \
    //   -d "grant_type=refresh_token" \
    //   -d "refresh_token=Aztr|..." \
    //   -d "client_id=foodev" \
    //   -d "client_secret=Y76SDl2F"

    // Use the following online tool to generate HTTP code from a CURL command
    // Convert a cURL Command to HTTP Source Code

    CkHttpRequest req = new CkHttpRequest();
    req.AddParam("grant_type","refresh_token");
    req.AddParam("refresh_token","Aztr|...");
    req.AddParam("client_id","foodev");
    req.AddParam("client_secret","Y76SDl2F");

    req.AddHeader("Host","api.amazon.com");

    CkHttpResponse resp = http.PostUrlEncoded("https://api.amazon.com/auth/o2/token",req);
    if (http.get_LastMethodSuccess() == false) {
        Log.i(TAG, http.lastErrorText());
        return;
        }

    int statusCode = resp.get_StatusCode();
    Log.i(TAG, "Status Code = " + String.valueOf(statusCode));

    CkJsonObject json = new CkJsonObject();
    json.Load(resp.bodyStr());

    json.put_EmitCompact(false);
    Log.i(TAG, json.emit());

    if (statusCode != 200) {
        Log.i(TAG, "Failed.");
        return;
        }

    // Success returns this JSON:

    // {
    //   "access_token": "Atza|...",
    //   "refresh_token": "Atzr|...",
    //   "token_type": "bearer",
    //   "expires_in": 3600
    // }

    // Save the JSON token to a file for use in subsequent calls.
    // (this example is passing a relative file path.  You don't need to save to a file
    // if, for example, you keep the access token in-memory for subsequent use...)
    boolean success = json.WriteFile("qa_data/tokens/sp_api_lwa_token.json");

    Log.i(TAG, "access_token: " + json.stringOf("access_token"));
    Log.i(TAG, "Success.");

  }

  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."
  }
}