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Page updated Apr 29, 2024

Publish

To send a message to a topic, use publish() method with your topic name and the message:

await pubsub.publish({ topics: 'myTopic1', message: { msg: 'Hello to all subscribers!' } });

If multiple providers are defined in your app you can pass the message to a specific provider:

await pubsub.publish({
topics: 'myTopic1',
message: { msg: 'Hello to all subscribers!' },
options: { provider: 'AWSIoTProvider' }
});

You can also publish a message to multiple topics:

await pubsub.publish({ topics: ['myTopic1','myTopic2'], message: { msg: 'Hello to all subscribers!' } });