Auditing Cosmos DB data using change feed triggers

You may have already heard about Cosmos DB, as it has become very popular and many organizations are using it because of the features it provides.

In this recipe, you will learn to integrate serverless Azure Functions with a serverless NoSQL database in Cosmos DB. You can read more about Cosmos DB at https://docs.microsoft.com/azure/cosmos-db/introduction.

It might often be necessary to keep the change logs of fields, attributes, items, and other aspects for auditing purposes. In the world of relational databases, you might have seen developers using triggers or stored procedures to implement this kind of auditing functionality, where you write code to store data in a separate audit table.

In this recipe, you'll learn how easy it is to audit the changes made to Cosmos DB containers by writing a simple function that gets triggered whenever there is a change to an item in a Cosmos DB container.

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In the world of...