Connect Azure Functions to SignalR using managed identity

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Traditionally, establishing a connection between Azure Functions and SignalR required managing connection strings with sensitive secrets, introducing potential security vulnerabilities and management complexities. However, Microsoft’s introduction of managed identity offers a game-changing solution to this challenge, streamlining the authentication process while bolstering security measures.

Using Managed Identity instead of using a connection string with Accountkey is part of best practices.

What this being said, let’s connect the Azure function to SignalR without any connection string.

The steps are straightforward:

• Create a Managed Identity for the Azure Function. In my case, I am using a System Assign identity.

Now in my scenario, I have two functions.

Function 1: Negotiate

Function 2: Publish a message SignalR target

Function 1: Negotiate Function

 [FunctionName("negotiate")]
    public SignalRConnectionInfo…