question

I made a C# source generator for generating Azure Functions boilerplate code, so that the actual server code is more similar to the previous JS CloudScripts. It's a proof of concept, and I still need to test whether the generated code actually works on actual servers.

The repo is at https://github.com/heshuimu/PlayFabAzureFunctionTool

With the generator, I can write server code more like the previous JS CloudScript:

using System.Threading.Tasks;
using Microsoft.Extensions.Logging;
using PlayFab;
using K4.AzureFunctions;

[assembly: DefaultAuthorizationLevel(DummyAuthLevel.Function)]

public class DummyClass
{
        public PlayFabServerInstanceAPI Server { get; init; }
        public string CurrentPlayerID { get; init; }

        public class DummyInput
        {
        }

        [AzureFunction(Name = "abc", AuthorizationLevel = DummyAuthLevel.Anonymous)]
        public async Task<int> DummyInstanceMethod(DummyInput input)
        {
                return 1;
        }

        [AzureFunction]
        public async Task DummVoidMethod(DummyInput input, ILogger log)
        {
        }

        [AzureFunction]
        public static void DummyStaticMethod(PlayFabServerInstanceAPI server, string currentPlayerID)
        {
        }
}

And the tool will generate the following:

using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Azure.WebJobs;
using Microsoft.Azure.WebJobs.Extensions.Http;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Logging;
using PlayFab.Plugins.CloudScript;
using PlayFab;

class GeneratedAzureFunction
{
        [FunctionName("abc")]
        public static async Task<IActionResult> abc_Generated([HttpTrigger(AuthorizationLevel.Anonymous, "post", Route = null)] HttpRequest req, ILogger log)
        {
                var functionContext = await FunctionContext<DummyClass.DummyInput>.Create(req);

                PlayFabServerInstanceAPI server = new(functionContext.ApiSettings, functionContext.AuthenticationContext);
                string currentPlayerID = functionContext.CurrentPlayerId;

                var result = await new DummyClass(){ Server = server, CurrentPlayerID = currentPlayerID }.DummyInstanceMethod(functionContext.FunctionArgument);

                return new OkObjectResult(result);
        }

        [FunctionName("DummVoidMethod")]
        public static async Task<IActionResult> DummVoidMethod_Generated([HttpTrigger(AuthorizationLevel.Function, "post", Route = null)] HttpRequest req, ILogger log)
        {
                var functionContext = await FunctionContext<DummyClass.DummyInput>.Create(req);

                PlayFabServerInstanceAPI server = new(functionContext.ApiSettings, functionContext.AuthenticationContext);
                string currentPlayerID = functionContext.CurrentPlayerId;

                await new DummyClass(){ Server = server, CurrentPlayerID = currentPlayerID }.DummVoidMethod(functionContext.FunctionArgument, log);

                return new OkResult();
        }

        [FunctionName("DummyStaticMethod")]
        public static async Task<IActionResult> DummyStaticMethod_Generated([HttpTrigger(AuthorizationLevel.Function, "post", Route = null)] HttpRequest req, ILogger log)
        {
                var functionContext = await FunctionContext.Create(req);

                PlayFabServerInstanceAPI server = new(functionContext.ApiSettings, functionContext.AuthenticationContext);
                string currentPlayerID = functionContext.CurrentPlayerId;

                DummyClass.DummyStaticMethod(server, currentPlayerID);

                return new OkResult();
        }
}