| # Google Cloud Pub/Sub API service configuration | 
 |  | 
 | type: google.api.Service | 
 | config_version: 3 | 
 | name: pubsub.googleapis.com | 
 |  | 
 | title: Google Cloud Pub/Sub API | 
 |  | 
 | documentation: | 
 |   summary: > | 
 |     Provides reliable, many-to-many, asynchronous messaging between | 
 |     applications. | 
 |   rules: | 
 |     - selector: > | 
 |         google.pubsub.v1.Topic.name, | 
 |       description: | | 
 |           The name of the topic. It must have the format | 
 |           `"projects/{project}/topics/{topic}"`. `{topic}` must start with a letter, | 
 |           and contain only letters (`[A-Za-z]`), numbers (`[0-9]`), dashes (`-`), | 
 |           underscores (`_`), periods (`.`), tildes (`~`), plus (`+`) or percent | 
 |           signs (`%`). It must be between 3 and 255 characters in length, and it | 
 |           must not start with `"goog"`. | 
 |     - selector: > | 
 |         google.pubsub.v1.Subscription.name, | 
 |       description: | | 
 |           The name of the subscription. It must have the format | 
 |           `"projects/{project}/subscriptions/{subscription}"`. `{subscription}` must | 
 |           start with a letter, and contain only letters (`[A-Za-z]`), numbers | 
 |           (`[0-9]`), dashes (`-`), underscores (`_`), periods (`.`), tildes (`~`), | 
 |           plus (`+`) or percent signs (`%`). It must be between 3 and 255 characters | 
 |           in length, and it must not start with `"goog"`. | 
 |  | 
 | apis: | 
 | - name: google.pubsub.v1.Publisher | 
 | - name: google.pubsub.v1.Subscriber | 
 |  | 
 | authentication: | 
 |   rules: | 
 |     - selector: '*' | 
 |       oauth: | 
 |         canonical_scopes: https://www.googleapis.com/auth/pubsub, | 
 |                           https://www.googleapis.com/auth/cloud-platform |