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Tailing the CosmosDB Change Feed

This will hopefully be a short post about how to listen to changes from your CosmosDB SQL API using the Node SDK. For some reasons, it reminds me of the `oplog tailing` mechanism in MongoDB that Meteor utilized in the past to achieve real-time, hence this article's title. »

Real-time GraphQL Subscriptions Part 1: Server

We will set our first GraphQL subscription up and publish a message to our subscribers in real-time. »