This API is deprecated and will be turned down in January 2019. Migrate to Cloud Firestore or another data store as soon as possible to avoid disruptions to your application.

Realtime Terminology

The Realtime API provides collaboration as a service. The API is a JavaScript library hosted by Google that provides all of the functionality necessary for you to create a custom application that allows seamless, simultaneous editing. In order to enable collaboration, the contents are stored in Google Drive and all users must have a Google account.

Parts of a Realtime Application

Realtime Document A single unit of data that can be shared and collaborated on.

Realtime Model The contents of a Realtime Document. This is where you store your application’s data. The Realtime API provides easy methods for reading and writing this data. See Build a data model.

Collaborator A user who can view or edit a document.

Drive App In order to enable collaboration, your application must be a Drive application. This authorizes you to read and write to a user’s Drive and integrate with the Drive UI. An app is defined by an entry in the Google Developer’s Console with the Drive API Enabled. See Create a Realtime app

Drive File A file stored in Google Drive. A Realtime document can be attached to a file in order to enable collaboration. Files are created and shared via the Drive API. See Drive Files.

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Realtime API
Realtime API