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Azure Cosmos DB for MongoDB (vCore) bindings for Azure Functions

The Azure Cosmos DB for MongoDB (vCore) extension supports trigger, input, and output bindings for Azure Cosmos DB for MongoDB (vCore).

Important

The Azure Cosmos DB for MongoDB (vCore) extension is currently in preview.
At this time, only .NET apps that use the in-process model are supported.

Using the Azure Cosmos DB for MongoDB (vCore) extension, you can build functions that can:

Action Trigger/binding type
Execute on changes to a collection Azure Cosmos DB for MongoDB (vCore) trigger
Write documents to the database Azure Cosmos DB for MongoDB (vCore) output binding
Query the database Azure Cosmos DB for MongoDB (vCore) input binding

Considerations for the Azure Cosmos DB for MongoDB (vCore) extension:

  • Only C# apps that run in-process with the host are currently supported in preview.
  • The Azure Cosmos DB for MongoDB (vCore) binding extension doesn't currently support Microsoft Entra authentication and managed identities.
  • Your app must be using version 4.x of the Azure Functions runtime.

Install extension

Add the extension to your .NET project for an in-process app by installing this preview NuGet package:

Microsoft.Azure.WebJobs.Extensions.AzureCosmosDb.Mongo

Note

Don't try to install this package in a .NET isolated worker process app. There will be errors and the app project won't build. To learn how to create a .NET app that uses the in-process model, see Develop C# class library functions using Azure Functions.