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// Copyright 2019-2021 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// This is a generated sample, using the typeless sample bot. Please
// look for the source TypeScript sample (.ts) for modifications.
'use strict';
/**
* This sample demonstrates how to perform basic operations on topics with
* the Google Cloud Pub/Sub API.
*
* For more information, see the README.md under /pubsub and the documentation
* at https://cloud.google.com/pubsub/docs.
*/
// sample-metadata:
// title: Create Topic With Schema
// description: Creates a new topic, with a schema definition.
// usage: node createTopicWithSchema.js <topic-name> <schema-name> [encoding-type]
// [START pubsub_create_topic_with_schema]
/**
* TODO(developer): Uncomment these variables before running the sample.
*/
// const topicNameOrId = 'YOUR_TOPIC_NAME_OR_ID';
// const schemaName = 'YOUR_SCHEMA_NAME_OR_ID';
// const encodingType = 'BINARY';
// Imports the Google Cloud client library
const {PubSub} = require('@google-cloud/pubsub');
// Creates a client; cache this for further use
const pubSubClient = new PubSub();
async function createTopicWithSchema(
topicNameOrId,
schemaNameOrId,
encodingType,
) {
// Get the fully qualified schema name.
const schema = pubSubClient.schema(schemaNameOrId);
const fullName = await schema.getName();
// Creates a new topic with a schema. Note that you might also
// pass Encodings.Json or Encodings.Binary here.
await pubSubClient.createTopic({
name: topicNameOrId,
schemaSettings: {
schema: fullName,
encoding: encodingType,
},
});
console.log(`Topic ${topicNameOrId} created with schema ${fullName}.`);
}
// [END pubsub_create_topic_with_schema]
function main(
topicNameOrId = 'YOUR_TOPIC_NAME_OR_ID',
schemaNameOrId = 'YOUR_SCHEMA_NAME_OR_ID',
encodingType = 'BINARY',
) {
createTopicWithSchema(topicNameOrId, schemaNameOrId, encodingType).catch(
err => {
console.error(err.message);
process.exitCode = 1;
},
);
}
main(...process.argv.slice(2));