Java tutorial
/** * Copyright 2014 Upwork * * Licensed under the Upwork's API Terms of Use; * you may not use this file except in compliance with the Terms. * You may obtain a copy of the Terms at * * https://developers.upwork.com/api-tos.html * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * * @author: Maksym Novozhylov <mnovozhilov@upwork.com> */ package com.upwork.example_upworkapi; import android.app.Activity; import android.app.ActionBar; import android.app.Fragment; import android.content.Intent; import android.content.SharedPreferences; import android.net.Uri; import android.os.AsyncTask; import android.os.Bundle; import android.preference.PreferenceManager; import android.util.Log; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.view.ViewGroup; import android.os.Build; import android.widget.Button; import android.widget.Toast; import java.util.HashMap; import java.util.Properties; import com.Upwork.api.*; import com.Upwork.api.Routers.Organization.Users; import org.json.JSONException; import org.json.JSONObject; import oauth.signpost.OAuth; public class MyActivity extends Activity { private final static String UPWORK_CONSUMER_KEY = "REPLACE-WITH-YOUR-CONSUMER-KEY-FROM-UPWORK"; private final static String UPWORK_CONSUMER_SECRET = "REPLACE-WITH-SECRET-FOR-THE-CONSUMER-KEY"; private final static String OAUTH_CALLBACK_SCHEME = "x-oauthflow"; private OAuthClient client; SharedPreferences prefs; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); onNewIntent(getIntent()); setContentView(R.layout.activity_my); if (savedInstanceState == null) { getFragmentManager().beginTransaction().add(R.id.container, new PlaceholderFragment()).commit(); } // Read the prefs to see if we have token prefs = PreferenceManager.getDefaultSharedPreferences(this); String token = prefs.getString("token", null); String tokenSecret = prefs.getString("secret", null); if (token != null && tokenSecret != null && client != null) { client.setTokenWithSecret(token, tokenSecret); } else { if (client == null) { //NOTE: KEY/SECRET PAIR MUST BE STORED IN A SAFE PLACE //THIS PART OF ASSIGNING OF CONSUMER KEY IS AN EXAMPLE Properties props = new Properties(); props.setProperty("consumerKey", UPWORK_CONSUMER_KEY); props.setProperty("consumerSecret", UPWORK_CONSUMER_SECRET); Config config = new Config(props); client = new OAuthClient(config); } // authorize new UpworkAuthorizeTask().execute(); } } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.my, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { // Handle action bar item clicks here. The action bar will // automatically handle clicks on the Home/Up button, so long // as you specify a parent activity in AndroidManifest.xml. int id = item.getItemId(); if (id == R.id.action_settings) { return true; } return super.onOptionsItemSelected(item); } /** * Callback once we are done with the authorization of this app * @param intent */ @Override public void onNewIntent(Intent intent) { super.onNewIntent(intent); // Verify OAuth callback Uri uri = intent.getData(); if (uri != null && uri.getScheme().equals(OAUTH_CALLBACK_SCHEME)) { String verifier = uri.getQueryParameter(OAuth.OAUTH_VERIFIER); new UpworkRetrieveAccessTokenTask().execute(verifier); } } public void onClickGetMyUID(View view) { String token = prefs.getString("token", null); if (client == null || token == null) { Toast.makeText(this, "Authenticating at first, wait", Toast.LENGTH_LONG).show(); return; } new GetMyUIdTask().execute(); } /** * A placeholder fragment containing a simple view. */ public static class PlaceholderFragment extends Fragment { public PlaceholderFragment() { } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View rootView = inflater.inflate(R.layout.fragment_my, container, false); return rootView; } } class UpworkAuthorizeTask extends AsyncTask<Void, Void, String> { private Exception exception; @Override protected String doInBackground(Void... params) { String authzUrl = client.getAuthorizationUrl(); // if your api key type is 'mobile', possibly you want to use // oauth_callback in your application, then use //String authzUrl = client.getAuthorizationUrl("x-app://your_callback"); startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(authzUrl))); return authzUrl; } @Override protected void onPostExecute(String result) { super.onPostExecute(result); if (result != null) { Toast.makeText(MyActivity.this, result, Toast.LENGTH_LONG).show(); } } } class UpworkRetrieveAccessTokenTask extends AsyncTask<String, Void, String> { @Override protected String doInBackground(String... params) { String verifier = params[0]; HashMap<String, String> token = client.getAccessTokenSet(verifier); client.setTokenWithSecret(token.get("token"), token.get("secret")); // Save token/secret in preferences prefs.edit().putString("token", token.get("token")).putString("secret", token.get("secret")).commit(); return "ok - token is: " + prefs.getString("token", null); } @Override protected void onPostExecute(String result) { super.onPostExecute(result); if (result != null) { Toast.makeText(MyActivity.this, result, Toast.LENGTH_LONG).show(); } } } class GetMyUIdTask extends AsyncTask<Void, Void, String> { @Override protected String doInBackground(Void... params) { JSONObject json = null; String token = prefs.getString("token", null); Users users = new Users(client); String myId = ""; try { json = users.getMyInfo(); JSONObject user = json.getJSONObject("user"); myId = user.getString("id"); } catch (JSONException e) { e.printStackTrace(); } return "Your UID is " + myId; } @Override protected void onPostExecute(String result) { super.onPostExecute(result); if (result != null) { Toast.makeText(MyActivity.this, result, Toast.LENGTH_LONG).show(); } } } }