How to debug the context on an Azure Function called by a rule?

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Gustavo Dorte Carriel de Lara asked Feb 23, '22

How to debug the context on an Azure Function called by a rule?

In general, I'm having a tough time debugging the HttpRequest of an Azure Function when it's being called by a rule. I've been considering calling an external API and giving them the json just so I can read it! Let me show you what I've been struggling with:

My code so far:

using System.Threading.Tasks;
using Microsoft.Azure.WebJobs;
using Microsoft.Azure.WebJobs.Extensions.Http;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Logging;
using PlayFab;
using PlayFab.Samples;
using Newtonsoft.Json;
using Microsoft.AspNetCore.Mvc;

namespace OnPurchasedCommander.Function
{
    public static class OnCommanderWasPurchased
    {
        [FunctionName("OnCommanderWasPurchased")]
        public static async Task<dynamic> Run(
            [HttpTrigger(AuthorizationLevel.Function, "post", Route = null)] HttpRequest req,
            ILogger log)
        {
            string json = await req.ReadAsStringAsync();
            FunctionExecutionContext<dynamic> context = JsonConvert.DeserializeObject<FunctionExecutionContext<dynamic>>(json);

            var settings = new PlayFabApiSettings
            {
                TitleId = context.TitleAuthenticationContext.Id,
                DeveloperSecretKey = "-----" //this is hardcoded
            };

            PlayFabAuthenticationContext authContext = new PlayFabAuthenticationContext()
            {
                EntityToken = context.TitleAuthenticationContext.EntityToken
            };

            PlayFabServerInstanceAPI sapi = new PlayFabServerInstanceAPI(settings, authContext);

            PlayFab.PlayFabResult<PlayFab.ServerModels.GrantCharacterToUserResult> result = await sapi.GrantCharacterToUserAsync(new PlayFab.ServerModels.GrantCharacterToUserRequest()
            {
                CharacterName = "test", //I wanted to use the purchased ItemId here
                CharacterType = "Commander",
                PlayFabId = "----" //This is hardcoded
            });

            log.LogInformation("Testing log.LogInformation");

            if (result.Error != null)
            {
                return new BadRequestObjectResult("Oops");
            }
            else
            {
                return new OkObjectResult("All good!");
            }
        }
    }
}

For this code, I need to know how to get the PlayerId and the ItemId of the item that was added to the player's inventory when that rule was called.

Being able to debug the context would help me a lot! I can't use PostMan for that because the HttpRequest is built by PlayFab when the rule is triggered.I also tried returning data and using the log, to no avail.

I really just want to see what's on that json string.

Any tips?

CloudScript

edit-rule-for-oncommanderwaspurchased.png (44.8 KiB)

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Answer 1 · 2022-02-23T06:55:43Z

Gosen Gao answered Feb 23, '22

The CS2AFHelperClasses.cs has the PlayerPlayStreamFunctionExecutionContext, which is used for Azure Function called by a rule. You can refer to the code below to get the PlayFabId and ItemId.

PlayerPlayStreamFunctionExecutionContext<dynamic> context = JsonConvert.DeserializeObject<PlayerPlayStreamFunctionExecutionContext<dynamic>>(await req.ReadAsStringAsync());

log.LogInformation(context.PlayerProfile.PlayerId);
log.LogInformation(context.PlayStreamEventEnvelope.EventData);

JObject jsonO = JObject.Parse(context.PlayStreamEventEnvelope.EventData);
string itemId = jsonO["ItemId"].ToString();
log.LogInformation(itemId);

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Gustavo Dorte Carriel de Lara commented · Feb 23, 2022 at 02:55 PM

That was beyond helpful, @Gosen Gao! I cannot thank you enough!

If people out there are having problems debugging the HttpRequest, it came to me that one can do the following code:

namespace OnPurchasedCommander.Function
{
    public static class OnCommanderWasPurchased
    {
        [FunctionName("OnCommanderWasPurchased")]
        public static async Task<dynamic> Run(
            [HttpTrigger(AuthorizationLevel.Function, "post", Route = null)] HttpRequest req, ILogger log)
        {
            string json = await req.ReadAsStringAsync();
            return new OkObjectResult(json);
        }
    }
}

If your event is registered at the PlayStream, you'll see the json in there!

What happened to me was that my function was taking more than 1000ms to finish and PlayFab wouldn't give me the return.

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