How to proxy requests to the Azure Function?

Question

Can we use authorization and authentication in Azure Function .NET Solution with the below code:

For authorization:

[Authorize] keyword (Microsoft.AspNetCore.Authorization)

For Authentication:

services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme) (Microsoft.AspNetCore.Authentication.JwtBearer)

I'm thinking to use the controller in the Main Project where I have Azure Functions and .NET Core Project in the same local path, for proxying the requests to handle by Azure Functions so that can have the common symmetric key for calling the Function APIs?

Is this the right approach or any changes required?

Answer 1

Hello @krishna572 Note that Azure Functions doesn't implement MVC pattern like ASP.NET Core does. If you meant to have both Azure Functions and ASP.NET Core projects under a same solution and leverage the Authentication/Authorization features in ASP.NET Core project (via a Controller) for your Azure Functions project, that won't be possible because projects under a solution in Visual Studio is only a logical grouping of related projects; they don't share same functionalities, dependencies among each other.

You can still use the same Authentication/Authorization features (of Microsoft.AspNetCore namespace) in Azure Functions though. Please refer to the following blog post: Microsoft.Identity.Web and Azure Functions

Here's an official sample: https://github.com/AzureAD/microsoft-identity-web/tree/master/tests/DevApps/AzureFunctions

Additionally, if you still need to run another ASP.NET Core app alongside Azure Functions app but also want a way to handle Authentication/Authorization for both of them from in a centralized manner, you might want to consider placing API Management in front of them:

• Use Azure API Management (APIM) to authenticate requests
• Protect an API in Azure API Management using OAuth 2.0 authorization with Azure Active Directory

I hope this helps, please let me know if you have any questions.