How to create an API controller that will handles multipart/data

Hello,

I use ASP NETCore 6, How to create an API controller that will handles multipart/data with the following keys:

tifFile --> File

hostName --> string

accessCode --> string

I tried the following using postman, it goes there but I don't have an idea on how to extract the key and its value?

[HttpPost]
[Route("/api/AWS/Upload")]
[AllowAnonymous]
public async Task awsUploadAsync() 
{
    // how to get the tifFile, hostName, and accessCode value here
}