|  | # 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 |