Add Google Spreadsheet example

examples/google_spreadsheet_values_update.php

@@ -0,0 +1,72 @@
+<?php
+require __DIR__ . '/vendor/autoload.php';
+
+use \Curl\Curl;
+
+
+const OAUTH2_AUTH_URL = 'https://accounts.google.com/o/oauth2/auth';
+const OAUTH2_TOKEN_URI = 'https://www.googleapis.com/oauth2/v4/token';
+
+const CLIENT_ID = 'XXXXXXXXXXXX-XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX.apps.googleusercontent.com';
+const CLIENT_SECRET = 'XXXXXXXXXXXXXXXXXXXXXXXX';
+const REDIRECT_URI = 'https://www.example.com/oauth2callback';
+
+if (php_sapi_name() !== 'cli') {
+    throw new Exception('This application must be run on the command line.');
+}
+
+// Request authorization from the user.
+$auth_url = OAUTH2_AUTH_URL . '?' . http_build_query(array(
+    'access_type' => 'offline',
+    'approval_prompt' => 'force',
+    'client_id' => CLIENT_ID,
+    'redirect_uri' => REDIRECT_URI,
+    'response_type' => 'code',
+    'scope' => 'https://www.googleapis.com/auth/spreadsheets',
+));
+echo 'Open the following link in your browser:' . "\n";
+echo $auth_url . "\n";
+echo 'Enter verification code: ';
+$code = trim(fgets(STDIN));
+
+// Exchange authorization code for an access token.
+$curl = new Curl();
+$curl->post(OAUTH2_TOKEN_URI, array(
+    'client_id' => CLIENT_ID,
+    'client_secret' => CLIENT_SECRET,
+    'code' => $code,
+    'grant_type' => 'authorization_code',
+    'redirect_uri' => REDIRECT_URI,
+));
+$access_token = $curl->response;
+
+// Update spreadsheet.
+$spreadsheet_id = '1Z2cXhdG-K44KgSzHTcGhx1dY-xY31yuYGwX21F4GeUp';
+$range = 'Sheet1!A1';
+$url = 'https://sheets.googleapis.com/v4/spreadsheets/' . $spreadsheet_id . '/values/' . $range;
+$url .= '?' . http_build_query(array(
+    'valueInputOption' => 'USER_ENTERED',
+));
+
+$data = array(
+    'values' => array(
+        array(
+            'This is cell A1',
+            'B1',
+            'C1',
+            'and D1',
+        ),
+    ),
+);
+
+$curl = new Curl();
+$curl->setHeader('Content-Type', 'application/json');
+$curl->setHeader('Authorization', 'Bearer ' . $access_token->access_token);
+$curl->put($url, $data);
+
+if ($curl->error) {
+    echo 'Error: ' . $curl->errorCode . ': ' . $curl->errorMessage;
+    var_dump($curl);
+} else {
+    var_dump($curl->response);
+}