question

I'm using NodeJS/typescript to create a CloudScript Azure Function called onPlayerRegister to set up some initial player inventory when a player creates a new account. I've set up the automation Rule, so the played_added_title event triggers my Azure Function. The function triggers correctly, but I can't figure out how to identify this player on whose behalf the CloudScript function was run.

This is my function, gets triggered by player_added_title:

 import {
   app,
   HttpRequest,
   HttpResponseInit,
   InvocationContext,
 } from "@azure/functions";
    
 export async function onPlayerRegister(
   request: HttpRequest,
   context: InvocationContext
 ): Promise<HttpResponseInit> {
   context.log(context);
   context.log(request);
    
   return { body: `Hello!` };
 }
    
 app.http("onPlayerRegister", {
   methods: ["GET", "POST"],
   authLevel: "anonymous",
   handler: onPlayerRegister,
 });

These are the request and context parameter values I'm logging in Azure. I can't see any Playfab-related data here. What am I missing?

 InvocationContext { 
   invocationId: 'f8375571-8345-4b51-824f-f740ef9efa7f',
   functionName: 'onPlayerRegister', 
   extraInputs: InvocationContextExtraInputs {}, 
   extraOutputs: InvocationContextExtraOutputs {}, 
   retryContext: undefined, 
   traceContext: { 
     traceParent: '00-3cc8c5fcb8b32b8e05ee60c2f96b0408-cc460fb1c10baf52-00', 
     traceState: '', 
     attributes: {} 
   }, 
   triggerMetadata: undefined, 
   options: { 
     trigger: { 
       methods: [Array], 
       authLevel: 'anonymous', 
       type: 'httpTrigger', 
       name: 'httpTrigger2', 
       direction: 'in' 
     }, 
     return: { 
       type: 'http', 
       name: '$return', 
       direction: 'out' 
     },
     extraInputs: [], 
     extraOutputs: [] 
   } 
 }

 HttpRequest {
   query: URLSearchParams {},
   params: {}
 }

How do I identify a player in my NodeJS Azure Function triggered by a 'player_added_title' PlayStream event?