Publishing with Attributes

See: https://cloud.google.com/pubsub/docs/publisher#using_attributes

client.example.ts

import SimpleTopic from 'pubsub/topics/simple.topic.name';

let topic = new SimpleTopic();

topic.publish(

{ id: 1, data: 'My first message' },

{

attributes: {

filter: 'a',

company: 'b',

status: 'failed',

},

},

);

These attributes can then be used to filter messages using the filter option in Subscription Options.