Utility method to process the webhook notification from HttpServlet#doPost.
The HttpServletRequest#getInputStream() is closed in a finally block inside this
method. If it is not detected to be a webhook notification, an HttpServletResponse#SC_BAD_REQUEST error will be displayed. If the notification channel is
found in the given notification channel data store, it will call UnparsedNotificationCallback#onNotification for the registered notification callback method.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-15 UTC."],[],[],null,["# Class WebhookUtils (2.8.1)\n\nVersion latestkeyboard_arrow_down\n\n- [2.8.1 (latest)](/java/docs/reference/google-api-client/latest/com.google.api.client.googleapis.extensions.servlet.notifications.WebhookUtils)\n- [2.8.0](/java/docs/reference/google-api-client/2.8.0/com.google.api.client.googleapis.extensions.servlet.notifications.WebhookUtils)\n- [2.7.2](/java/docs/reference/google-api-client/2.7.2/com.google.api.client.googleapis.extensions.servlet.notifications.WebhookUtils)\n- [2.6.0](/java/docs/reference/google-api-client/2.6.0/com.google.api.client.googleapis.extensions.servlet.notifications.WebhookUtils)\n- [2.5.1](/java/docs/reference/google-api-client/2.5.1/com.google.api.client.googleapis.extensions.servlet.notifications.WebhookUtils)\n- [2.4.1](/java/docs/reference/google-api-client/2.4.1/com.google.api.client.googleapis.extensions.servlet.notifications.WebhookUtils)\n- [2.1.2](/java/docs/reference/google-api-client/2.1.2/com.google.api.client.googleapis.extensions.servlet.notifications.WebhookUtils)\n- [2.0.1](/java/docs/reference/google-api-client/2.0.1/com.google.api.client.googleapis.extensions.servlet.notifications.WebhookUtils)\n- [1.35.2](/java/docs/reference/google-api-client/1.35.2/com.google.api.client.googleapis.extensions.servlet.notifications.WebhookUtils)\n- [1.34.1](/java/docs/reference/google-api-client/1.34.1/com.google.api.client.googleapis.extensions.servlet.notifications.WebhookUtils)\n- [1.33.4](/java/docs/reference/google-api-client/1.33.4/com.google.api.client.googleapis.extensions.servlet.notifications.WebhookUtils) \n\n public final class WebhookUtils\n\nBeta \n\nUtilities for Webhook notifications. \n\nInheritance\n-----------\n\n[java.lang.Object](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html) \\\u003e WebhookUtils \n\nInherited Members\n-----------------\n\n[Object.clone()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#clone--) \n[Object.equals(Object)](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#equals-java.lang.Object-) \n[Object.finalize()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#finalize--) \n[Object.getClass()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#getClass--) \n[Object.hashCode()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#hashCode--) \n[Object.notify()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#notify--) \n[Object.notifyAll()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#notifyAll--) \n[Object.toString()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#toString--) \n[Object.wait()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait--) \n[Object.wait(long)](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait-long-) \n[Object.wait(long,int)](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait-long-int-)\n\nStatic Fields\n-------------\n\n### TYPE\n\n public static final String TYPE\n\nWebhook notification channel type to use in the watch request.\n\nStatic Methods\n--------------\n\n### processWebhookNotification(HttpServletRequest req, HttpServletResponse resp, DataStore\\\u003cStoredChannel\\\u003e channelDataStore)\n\n public static void processWebhookNotification(HttpServletRequest req, HttpServletResponse resp, DataStore\u003cStoredChannel\u003e channelDataStore)\n\nUtility method to process the webhook notification from HttpServlet#doPost.\n\nThe HttpServletRequest#getInputStream() is closed in a finally block inside this\nmethod. If it is not detected to be a webhook notification, an HttpServletResponse#SC_BAD_REQUEST error will be displayed. If the notification channel is\nfound in the given notification channel data store, it will call [UnparsedNotificationCallback#onNotification](/java/docs/reference/google-api-client/latest/com.google.api.client.googleapis.notifications.UnparsedNotificationCallback#com_google_api_client_googleapis_notifications_UnparsedNotificationCallback_onNotification_) for the registered notification callback method.\n\n### processWebhookNotification(HttpServletRequest req, HttpServletResponse resp, DataStoreFactory dataStoreFactory)\n\n public static void processWebhookNotification(HttpServletRequest req, HttpServletResponse resp, DataStoreFactory dataStoreFactory)\n\nUtility method to process the webhook notification from HttpServlet#doPost by finding\nthe notification channel in the given data store factory.\n\nIt is a wrapper around #processWebhookNotification(HttpServletRequest, HttpServletResponse, DataStore) that uses the data store from [StoredChannel#getDefaultDataStore(DataStoreFactory)](/java/docs/reference/google-api-client/latest/com.google.api.client.googleapis.notifications.StoredChannel#com_google_api_client_googleapis_notifications_StoredChannel_getDefaultDataStore_com_google_api_client_util_store_DataStoreFactory_)."]]
