Python V2 event grid output doesn't show on azure portal, while just triggers show (using microsoft code and not seeing any errors)

Question

I'm using Python V2 model event grid trigger and output binding. I'm using microsoft example code provided. I'm deploying using git action and local-exe. I tried deploying just the trigger and it successfully got deployed and was able to see it on the azure portal. When I tried deploying with output to write to a custom topic. In git actions it successfully deployed without any errors but i dont see it on azure portal and stopped being triggered.

my requiremnets.txt just has azure-functions

import logging
import azure.functions as func
import datetime


@app.function_name(name="eventGridTrigger")
@app.route(route="eventgrid_output")
@app.event_grid_output(
    arg_name="outputEvent",
    topic_endpoint_uri="MyEventGridTopicUriSetting",
    topic_key_setting="MyEventGridTopicKeySetting")
def eventgrid_output(eventGridEvent: func.EventGridEvent, 
         outputEvent: func.Out[func.EventGridOutputEvent]) -> None:

    logging.log("eventGridEvent: ", eventGridEvent)

    outputEvent.set(
        func.EventGridOutputEvent(
            id="test-id",
            data={"tag1": "value1", "tag2": "value2"},
            subject="test-subject",
            event_type="test-event-1",
            event_time=datetime.datetime.utcnow(),
            data_version="1.0"))

to be able to see it and to get triggered and forward the event to the custom topic

Answer 1

I have followed MSDOC and implemented output binding with the below code:

Code Snippet:

app = func.FunctionApp()

@app.function_name(name="eventgridout")
@app.event_grid_trigger(arg_name="eventGridEvent")
@app.event_grid_output(
    arg_name="outputEvent",
    topic_endpoint_uri="MyEventGridTopicUriSetting",
    topic_key_setting="MyEventGridTopicKeySetting")
def eventgrid_output(eventGridEvent: func.EventGridEvent, 
         outputEvent: func.Out[func.EventGridOutputEvent]) -> None:

    logging.info("eventGridEvent: %s", eventGridEvent)

    outputEvent.set(
        func.EventGridOutputEvent(
            id="123",
            data={"tag1": "value1", "tag2": "value2"},
            subject="test-subject",
            event_type="test-event-1",
            event_time=datetime.datetime.utcnow(),
            data_version="1.0"))

local.settings.json:

{
  "IsEncrypted": false,
  "Values": {
    "FUNCTIONS_WORKER_RUNTIME": "python",
    "AzureWebJobsFeatureFlags": "EnableWorkerIndexing",
    "AzureWebJobsStorage": "UseDevelopmentStorage=true",
    "MyEventGridTopicUriSetting":"<Topic_Endpoint_Uri>",
    "MyEventGridTopicKeySetting":"<Topic_access_key>"
  }
}

• Created an Event Grid Topic and configured the subscription with Function app endpoint.

• Add the settings in Environment Variables=>Application Settings in the function app:

1. MyEventGridTopicUriSetting="<Topic_Endpoint_Uri>"
2. MyEventGridTopicKeySetting="<Topic_access_key>"

• Deployed the Function to Azure:

• Able to trigger the function successfully:

• Configured EventHub to send the events to Storage Account Queue.