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      1 page.title=In-app Billing Reference
      2 parent.title=In-app Billing
      3 parent.link=index.html
      4 @jd:body
      5 
      6 <div id="qv-wrapper">
      7 <div id="qv">
      8   <h2>In this document</h2>
      9   <ol>
     10     <li><a href="#billing-codes">Server Response Codes for In-app Billing</a></li>
     11     <li><a href="#billing-interface">In-app Billing Service Interface</a></li>
     12     <li><a href="#billing-intents">In-app Billing Broadcast Intents</a></li>
     13     <li><a href="#other-intents">Other Broadcast Intents</a></li>
     14     <li><a href="#billing-versions">In-app Billing API Versions</a></li>
     15   </ol>
     16   <h2>Downloads</h2>
     17   <ol>
     18     <li><a href="{@docRoot}guide/google/play/billing/billing_integrate.html#billing-download">Sample
     19     Application</a></li>
     20   </ol>
     21   <h2>See also</h2>
     22   <ol>
     23     <li><a href="{@docRoot}guide/google/play/billing/billing_overview.html">Overview of In-app
     24     Billing</a></li>
     25     <li><a href="{@docRoot}guide/google/play/billing/billing_integrate.html">Implementing In-app
     26     Billing</a></li>
     27     <li><a href="{@docRoot}guide/google/play/billing/billing_best_practices.html">Security and
     28     Design</a></li>
     29     <li><a href="{@docRoot}guide/google/play/billing/billing_testing.html">Testing In-app
     30     Billing</a></li>
     31     <li><a href="{@docRoot}guide/google/play/billing/billing_admin.html">Administering In-app
     32     Billing</a></li>
     33   </ol>
     34 </div>
     35 </div>
     36 
     37 <p>The following document provides technical reference information for the following:</p>
     38 
     39 <ul>
     40   <li><a href="#billing-codes">Google Play Server Response Codes for In-app Billing</a></li>
     41   <li><a href="#billing-interface">In-app Billing Interface Parameters</a></li>
     42   <li><a href="#billing-intents">In-app Billing Broadcast Intents</a></li>
     43   <li><a href="#other-intents">Other Intents</a></li>
     44   <li><a href="#billing-versions">In-app Billing API Versions</a></li>
     45 </ul>
     46 
     47 <h2 id="billing-codes">Server Response Codes for In-app Billing</h2>
     48 
     49 <p>The following table lists all of the server response codes that are sent from Google Play to
     50 your application. Google Play sends these response codes asynchronously as
     51 <code>response_code</code> extras in the <code>com.android.vending.billing.RESPONSE_CODE</code>
     52 broadcast intent. Your application must handle all of these response codes.</p>
     53 
     54 <p class="table-caption" id="response-codes-table"><strong>Table 1.</strong> Summary of response
     55 codes returned by Google Play.</p>
     56 
     57 <table>
     58 
     59 <tr>
     60 <th>Response Code</th>
     61 <th>Value</th>
     62 <th>Description</th>
     63 </tr>
     64 <tr>
     65   <td><code>RESULT_OK</code></td>
     66   <td>0</td>
     67   <td>Indicates that the request was sent to the server successfully. When this code is returned in
     68   response to a <code>CHECK_BILLING_SUPPORTED</code> request, indicates that billing is
     69   supported.</td>
     70 </tr>
     71 <tr>
     72   <td><code>RESULT_USER_CANCELED</code></td>
     73   <td>1</td>
     74   <td>Indicates that the user pressed the back button on the checkout page instead of buying the
     75   item.</td>
     76 </tr>
     77 <tr>
     78   <td><code>RESULT_SERVICE_UNAVAILABLE</code></td>
     79   <td>2</td>
     80   <td>Indicates that the network connection is down.</td>
     81 </tr>
     82 <tr>
     83   <td><code>RESULT_BILLING_UNAVAILABLE</code></td>
     84   <td>3</td>
     85   <td>Indicates that in-app billing is not available because the <code>API_VERSION</code> that you
     86   specified is not recognized by the Google Play application or the user is ineligible for in-app
     87   billing (for example, the user resides in a country that prohibits in-app purchases).</td>
     88 </tr>
     89 <tr>
     90   <td><code>RESULT_ITEM_UNAVAILABLE</code></td>
     91   <td>4</td>
     92   <td>Indicates that Google Play cannot find the requested item in the application's product
     93   list. This can happen if the product ID is misspelled in your <code>REQUEST_PURCHASE</code>
     94   request or if an item is unpublished in the application's product list.</td>
     95 </tr>
     96 <tr>
     97   <td><code>RESULT_DEVELOPER_ERROR</code></td>
     98   <td>5</td>
     99   <td>Indicates that an application is trying to make an in-app billing request but the application
    100   has not declared the com.android.vending.BILLING permission in its manifest. Can also indicate
    101   that an application is not properly signed, or that you sent a malformed request, such as a
    102   request with missing Bundle keys or a request that uses an unrecognized request type.</td>
    103 </tr>
    104 <tr>
    105   <td><code>RESULT_ERROR</code></td>
    106   <td>6</td>
    107   <td>Indicates an unexpected server error. For example, this error is triggered if you try to
    108 purchase an item from yourself, which is not allowed by Google Wallet.</td>
    109 </tr>
    110 </table>
    111 
    112 <h2 id="billing-interface">In-app Billing Service Interface</h2>
    113 
    114 <p>The following section describes the interface for Google Play's in-app billing service. The
    115 interface is defined in the <code>IMarketBillingService.aidl</code> file, which is included with the
    116 in-app billing <a
    117 href="{@docRoot}guide/google/play/billing/billing_integrate.html#billing-download">sample
    118 application</a>.</p>
    119 <p>The interface consists of a single request method <code>sendBillingRequest()</code>. This method
    120 takes a single {@link android.os.Bundle} parameter. The Bundle parameter includes several key-value
    121 pairs, which are summarized in table 2.</p>
    122 
    123 <p class="table-caption"><strong>Table 2.</strong> Description of Bundle keys passed in a
    124 <code>sendBillingRequest()</code> request.</p>
    125 
    126 <table>
    127 
    128 <tr>
    129 <th>Key</th>
    130 <th>Type</th>
    131 <th>Possible Values</th>
    132 <th>Required?</th>
    133 <th>Description</th>
    134 </tr>
    135 <tr>
    136   <td><code>BILLING_REQUEST</code></td>
    137   <td><code>String</code></td>
    138   <td><code>CHECK_BILLING_SUPPORTED</code>, <code>REQUEST_PURCHASE</code>,
    139   <code>GET_PURCHASE_INFORMATION</code>, <code>CONFIRM_NOTIFICATIONS</code>, or
    140   <code>RESTORE_TRANSACTIONS</code></td>
    141   <td>Yes</td>
    142   <td>The type of billing request you are making with the <code>sendBillingRequest()</code> request.
    143   The possible values are discussed more below this table.</td>
    144 </tr>
    145 <tr>
    146   <td><code>API_VERSION</code></td>
    147   <td><code>int</code></td>
    148   <td>  <ul>
    149   <li><code>"2"</code> [<a href="#version_2">details</a>]</li>
    150   <li><code>"1"</code> [<a href="#version_1">details</a>]</li>
    151   </ul></td>
    152   <td>Yes</td>
    153   <td>The version of Google Play's in-app billing service you want to use. The current version is
    154   2.</td>
    155 </tr>
    156 <tr>
    157   <td><code>PACKAGE_NAME</code></td>
    158   <td><code>String</code></td>
    159   <td>A valid package name.</td>
    160   <td>Yes</td>
    161   <td>The name of the application that is making the request.</td>
    162 </tr>
    163 <tr>
    164   <td><code>ITEM_ID</code></td>
    165   <td><code>String</code></td>
    166   <td>Any valid product identifier.</td>
    167   <td>Required for <code>REQUEST_PURCHASE</code> requests.</td>
    168   <td>The product ID of the item you are making a billing request for. Every in-app item that you
    169   sell using Google Play's in-app billing service must have a unique product ID, which you
    170   specify on the Google Play publisher site.</td>
    171 </tr>
    172 <tr>
    173   <td><code>NONCE</code></td>
    174   <td><code>long</code></td>
    175   <td>Any valid <code>long</code> value.</td>
    176   <td>Required for <code>GET_PURCHASE_INFORMATION</code> and <code>RESTORE_TRANSACTIONS</code>
    177   requests.</td>
    178   <td>A number used once. Your application must generate and send a nonce with each
    179   <code>GET_PURCHASE_INFORMATION</code> and <code>RESTORE_TRANSACTIONS</code> request. The nonce is
    180   returned with the <code>PURCHASE_STATE_CHANGED</code> broadcast intent, so you can use this value
    181   to verify the integrity of transaction responses form Google Play.</td>
    182 </tr>
    183 <tr>
    184   <td><code>NOTIFY_IDS</code></td>
    185   <td>Array of <code>long</code> values</td>
    186   <td>Any valid array of <code>long</code> values</td>
    187   <td>Required for <code>GET_PURCHASE_INFORMATION</code> and <code>CONFIRM_NOTIFICATIONS</code>
    188   requests.</td>
    189   <td>An array of notification identifiers. A notification ID is sent to your application in an
    190   <code>IN_APP_NOTIFY</code> broadcast intent every time a purchase changes state. You use the
    191   notification to retrieve the details of the purchase state change.</td>
    192 </tr>
    193 <tr>
    194   <td><code>DEVELOPER_PAYLOAD</code></td>
    195   <td><code>String</code></td>
    196   <td>Any valid <code>String</code> less than 256 characters long.</td>
    197   <td>No</td>
    198   <td>A developer-specified string that can be specified when you make a
    199   <code>REQUEST_PURCHASE</code> request. This field is returned in the JSON string that contains
    200   transaction information for an order. You can use this key to send supplemental information with
    201   an order. For example, you can use this key to send index keys with an order, which is useful if
    202   you are using a database to store purchase information. We recommend that you do not use this key
    203   to send data or content.</td>
    204 </tr>
    205 </table>
    206 
    207 <p>The <code>BILLING_REQUEST</code> key can have the following values:</p>
    208 
    209 <ul>
    210   <li><code>CHECK_BILLING_SUPPORTED</code>
    211     <p>This request verifies that the Google Play application supports in-app billing. You
    212     usually send this request when your application first starts up. This request is useful if you
    213     want to enable or disable certain UI features that are relevant only to in-app billing.</p>
    214   </li>
    215   <li><code>REQUEST_PURCHASE</code>
    216     <p>This request sends a purchase message to the Google Play application and is the foundation
    217     of in-app billing. You send this request when a user indicates that he or she wants to purchase
    218     an item in your application. Google Play then handles the financial transaction by displaying
    219     the checkout user interface.</p>
    220   </li>
    221   <li><code>GET_PURCHASE_INFORMATION</code>
    222     <p>This request retrieves the details of a purchase state change. A purchase state change can
    223     occur when a purchase request is billed successfully or when a user cancels a transaction during
    224     checkout. It can also occur when a previous purchase is refunded. Google Play notifies your
    225     application when a purchase changes state, so you only need to send this request when there is
    226     transaction information to retrieve.</p>
    227   </li>
    228   <li><code>CONFIRM_NOTIFICATIONS</code>
    229     <p>This request acknowledges that your application received the details of a purchase state
    230     change. That is, this message confirms that you sent a <code>GET_PURCHASE_INFORMATION</code>
    231     request for a given notification and that you received the purchase information for the
    232     notification.</p>
    233   </li>
    234   <li><code>RESTORE_TRANSACTIONS</code>
    235     <p>This request retrieves a user's transaction status for managed purchases (see <a
    236     href="{@docRoot}guide/google/play/billing/billing_admin.html#billing-purchase-type">Choosing a
    237     Purchase Type</a> for more information). You should send this message only when you need to
    238     retrieve a user's transaction status, which is usually only when your application is reinstalled
    239     or installed for the first time on a device.</p>
    240   </li>
    241 </ul>
    242 
    243 <p>Every in-app billing request generates a synchronous response. The response is a {@link
    244 android.os.Bundle} and can include one or more of the following keys:</p>
    245 
    246 <ul>
    247   <li><code>RESPONSE_CODE</code>
    248     <p>This key provides status information and error information about a request.</p>
    249   </li>
    250   <li><code>PURCHASE_INTENT</code>
    251     <p>This key provides a {@link android.app.PendingIntent}, which you use to launch the checkout
    252     activity.</p>
    253   </li>
    254   <li><code>REQUEST_ID</code>
    255     <p>This key provides you with a request identifier, which you can use to match asynchronous
    256     responses with requests.</p>
    257   </li>
    258 </ul>
    259 
    260 <p>Some of these keys are not relevant to certain types of requests. Table 3 shows which keys are
    261 returned for each request type.</p>
    262 
    263 <p class="table-caption"><strong>Table 3.</strong> Description of Bundle keys that are returned with
    264 each in-app billing request type.</p>
    265 
    266 <table>
    267 
    268 <tr>
    269 <th>Request Type</th>
    270 <th>Keys Returned</th>
    271 <th>Possible Response Codes</th>
    272 </tr>
    273 <tr>
    274   <td><code>CHECK_BILLING_SUPPORTED</code></td>
    275   <td><code>RESPONSE_CODE</code></td>
    276   <td><code>RESULT_OK</code>, <code>RESULT_BILLING_UNAVAILABLE</code>, <code>RESULT_ERROR</code>,
    277   <code>RESULT_DEVELOPER_ERROR</code></td>
    278 </tr>
    279 <tr>
    280   <td><code>REQUEST_PURCHASE</code></td>
    281   <td><code>RESPONSE_CODE</code>, <code>PURCHASE_INTENT</code>, <code>REQUEST_ID</code></td>
    282   <td><code>RESULT_OK</code>, <code>RESULT_ERROR</code>, <code>RESULT_DEVELOPER_ERROR</code></td>
    283 </tr>
    284 <tr>
    285   <td><code>GET_PURCHASE_INFORMATION</code></td>
    286   <td><code>RESPONSE_CODE</code>, <code>REQUEST_ID</code></td>
    287   <td><code>RESULT_OK</code>, <code>RESULT_ERROR</code>, <code>RESULT_DEVELOPER_ERROR</code></td>
    288 </tr>
    289 <tr>
    290   <td><code>CONFIRM_NOTIFICATIONS</code></td>
    291   <td><code>RESPONSE_CODE</code>, <code>REQUEST_ID</code></td>
    292   <td><code>RESULT_OK</code>, <code>RESULT_ERROR</code>, <code>RESULT_DEVELOPER_ERROR</code></td>
    293 </tr>
    294 <tr>
    295   <td><code>RESTORE_TRANSACTIONS</code></td>
    296   <td><code>RESPONSE_CODE</code>, <code>REQUEST_ID</code></td>
    297   <td><code>RESULT_OK</code>, <code>RESULT_ERROR</code>, <code>RESULT_DEVELOPER_ERROR</code></td>
    298 </tr>
    299 </table>
    300 
    301 <h2 id="billing-intents">In-app Billing Broadcast Intents</h2>
    302 
    303 <p>The following section describes the in-app billing broadcast intents that are sent by the Google
    304 Play application. These broadcast intents inform your application about in-app billing actions
    305 that have occurred. Your application must implement a {@link android.content.BroadcastReceiver} to
    306 receive these broadcast intents, such as the <code>BillingReceiver</code> that's shown in the in-app
    307 billing <a href="{@docRoot}guide/google/play/billing/billing_integrate.html#billing-download">sample
    308 application</a>.</p>
    309 
    310 <h4>com.android.vending.billing.RESPONSE_CODE</h4>
    311 
    312 <p>This broadcast intent contains a Google Play response code, and is sent after you make an
    313 in-app billing request. A server response code can indicate that a billing request was successfully
    314 sent to Google Play or it can indicate that some error occurred during a billing request. This
    315 intent is not used to report any purchase state changes (such as refund or purchase information).
    316 For more information about the response codes that are sent with this response, see <a
    317 href="#billing-codes">Google Play Response Codes for In-app Billing</a>. The sample application
    318 assigns this broadcast intent to a constant named <code>ACTION_RESPONSE_CODE</code>.</p>
    319 
    320 <h5>Extras</h5>
    321 
    322 <ul type="none">
    323   <li><code>request_id</code>&mdash;a <code>long</code> representing a request ID. A request ID
    324   identifies a specific billing request and is returned by Google Play at the time a request is
    325   made.</li>
    326   <li><code>response_code</code>&mdash;an <code>int</code> representing the Google Play server
    327   response code.</li>
    328 </ul>
    329 
    330 <h4>com.android.vending.billing.IN_APP_NOTIFY</h4>
    331 
    332 <p>This response indicates that a purchase has changed state, which means a purchase succeeded, was
    333 canceled, or was refunded. This response contains one or more notification IDs. Each notification ID
    334 corresponds to a specific server-side message, and each messages contains information about one or
    335 more transactions. After your application receives an <code>IN_APP_NOTIFY</code> broadcast intent,
    336 you send a <code>GET_PURCHASE_INFORMATION</code> request with the notification IDs to retrieve the
    337 message details. The sample application assigns this broadcast intent to a constant named
    338 <code>ACTION_NOTIFY</code>.</p>
    339 
    340 <h5>Extras</h5>
    341 
    342 <ul type="none">
    343   <li><code>notification_id</code>&mdash;a <code>String</code> representing the notification ID for
    344   a given purchase state change. Google Play notifies you when there is a purchase state change
    345   and the notification includes a unique notification ID. To get the details of the purchase state
    346   change, you send the notification ID with the <code>GET_PURCHASE_INFORMATION</code> request.</li>
    347 </ul>
    348 
    349 <h4>com.android.vending.billing.PURCHASE_STATE_CHANGED</h4>
    350 
    351 <p>This broadcast intent contains detailed information about one or more transactions. The
    352 transaction information is contained in a JSON string. The JSON string is signed and the signature
    353 is sent to your application along with the JSON string (unencrypted). To help ensure the security of
    354 your in-app billing messages, your application can verify the signature of this JSON string. The
    355 sample application assigns this broadcast intent to a constant named
    356 <code>ACTION_PURCHASE_STATE_CHANGED</code>.</p>
    357 
    358 <h5>Extras</h5>
    359 
    360 <ul type="none">
    361   <li><code>inapp_signed_data</code>&mdash;a <code>String</code> representing the signed JSON
    362   string.</li>
    363   <li><code>inapp_signature</code>&mdash;a <code>String</code> representing the signature.</li>
    364 </ul>
    365 
    366 <p class="note"><strong>Note:</strong> Your application should map the broadcast intents and extras
    367 to constants that are unique to your application. See the <code>Consts.java</code> file in the
    368 sample application to see how this is done.</p>
    369 
    370 <p>The fields in the JSON string are described in the following table (see table 4):</p>
    371 
    372 <p class="table-caption"><strong>Table 4.</strong> Description of JSON fields that are returned with
    373 a <code>PURCHASE_STATE_CHANGED</code> intent.</p>
    374 
    375 <table>
    376 
    377 <tr>
    378 <th>Field</th>
    379 <th>Description</th>
    380 </tr>
    381 <tr>
    382   <td>nonce</td>
    383   <td>A number used once. Your application generates the nonce and sends it with the
    384   <code>GET_PURCHASE_INFORMATION</code> request. Google Play sends the nonce back as part of the
    385   JSON string so you can verify the integrity of the message.</td>
    386 </tr>
    387 <tr>
    388   <td>notificationId</td>
    389   <td>A unique identifier that is sent with an <code>IN_APP_NOTIFY</code> broadcast intent. Each
    390   <code>notificationId</code> corresponds to a specify message that is waiting to be retrieved on
    391   the Google Play server. Your application sends back the <code>notificationId</code> with the
    392   <code>GET_PURCHASE_INFORMATION</code> message so Google Play can determine which messages you
    393   are retrieving.</td>
    394 </tr>
    395 <tr>
    396   <td>orderId</td>
    397   <td>A unique order identifier for the transaction. This corresponds to the Google Wallet Order
    398   ID.</td>
    399 </tr>
    400 <tr>
    401   <td>packageName</td>
    402   <td>The application package from which the purchase originated.</td>
    403 </tr>
    404 <tr>
    405   <td>productId</td>
    406   <td>The item's product identifier. Every item has a product ID, which you must specify in the
    407   application's product list on the Google Play publisher site.</td>
    408 </tr>
    409 <tr>
    410   <td>purchaseTime</td>
    411   <td>The time the product was purchased, in milliseconds since the epoch (Jan 1, 1970).</td>
    412 </tr>
    413 
    414 <tr>
    415   <td>purchaseState</td>
    416   <td>The purchase state of the order. Possible values are 0 (purchased), 1 (canceled), 2
    417   (refunded), or 3 (expired, for subscription purchases only).</td>
    418 </tr>
    419 <tr>
    420   <td>purchaseToken</td>
    421   <td>A token that uniquely identifies a subscription purchase for a given item and user pair.
    422   You can use the token to specify the subscription when querying for subscription validity.
    423   
    424   <p><br><em>Supported only in In-app Billing API version 2 and higher.</em></p></td>
    425 </tr>
    426 <tr>
    427   <td>developerPayload</td>
    428   <td>A developer-specified string that contains supplemental information about an order. You can
    429   specify a value for this field when you make a <code>REQUEST_PURCHASE</code> request.</td>
    430 </tr>
    431 </table>
    432 
    433 <!--<h2 id="other-intents">Other Intents</h2> 
    434 
    435 <p>The following Intents related to In-app Billing may be useful in your
    436 implemention. </p> -->
    437 
    438 <h2 id="http-api">HTTP API for verification and cancelation</h2>
    439 
    440 <p>Google Play offers an HTTP-based API that you can use to remotely query the
    441 validity of a specific subscription at any time or cancel a subscription. The
    442 API is designed to be used from your backend servers as a way of securely
    443 managing subscriptions, as well as extending and integrating subscriptions with
    444 other services. See <a
    445 href="{@docRoot}guide/google/play/billing/billing_subscriptions.html#play-dev-api">
    446 Google Play Android Developer API</a> for more information.</p>
    447 
    448 <h2 id="billing-versions">In-app Billing API Versions</h2>
    449 
    450 <p>The In-app Billing API is versioned, with each version offering
    451 additional features to your app. At run time, your app can query the Google Play app to determine
    452 what version of the API it supports and what features are available. Typically, the Google Play app
    453 will be updated and will support the latest version of the API. 
    454 
    455 <p>The sections below list the supported versions of the In-app Billing API.
    456 Versions are specified in the <code>API_VERSION</code> key of the Bundle object
    457 passed in the <code>sendBillingRequest()</code>, which is defined in the defined
    458 in the <code>IMarketBillingService.aidl</code> file, which is included with the
    459 in-app billing <a
    460 href="{@docRoot}guide/google/play/billing/billing_integrate.html#billing-download">
    461 sample application</a>. For more information, see <a
    462 href="#billing-interface">In-app Billing Service Interface</a>.</p>
    463 <h3 id="version_2">In-app Billing version 2</h3>
    464 
    465 <p><em>May 2012</em></p>
    466 
    467 <ul>
    468 <li>Adds support for subscriptions. 
    469   <ul>
    470   <li>Adds a new supported string value, "2", for the <code>API_VERSION</code> key
    471   of the Bundle object passed in the <code>sendBillingRequest()</code>.</li>
    472   <li>Adds a new JSON field, <code>purchaseToken</code>, to the
    473   <code>orders</code> list returned in a <code>PURCHASE_STATE_CHANGED</code>
    474   intent. </li> 
    475   <li>Adds a new <code>purchaseState</code> value, <code>3</code> (expired), to the
    476   <code>orders</code> list returned in a <code>PURCHASE_STATE_CHANGED</code>
    477   intent. The value indicates that a subscription has expired and is no longer valid.</li>
    478 <li>Requires Google Play (Play Store) version 3.5 or higher.</li>
    479 </ul>
    480 
    481 <h3 id="version_1">In-app Billing version 1</h3>
    482 
    483 <p><em>March 2011</em></p>
    484 
    485 <ul>
    486 <li>Initial release.</li>
    487 <li>Requires Google Play/Android Market 2.3.4 or higher.</li>
    488 </ul>
    489 
    490