@Marvin How do I get the block notification id of customwebhook to provide to action in automation from python sdk

To get the block notification ID for a

CustomWebhook

in Prefect 3.x, you can use the Python SDK to interact with Prefect's block system. Here's a concise guide on how you might achieve this: 1. Access the Prefect Client: Use the

get_client

function to access the Prefect client. This will allow you to interact with Prefect's API. 2. Retrieve Block Information: Use the client to fetch the details of the

CustomWebhook

block. This typically involves querying the block by its slug or name. 3. Extract the Block ID: Once you have the block details, you can extract the block ID, which can be used in automations. Here's a conceptual code snippet to guide you:

python
from prefect import get_client

async def get_custom_webhook_block_id():
    async with get_client() as client:
        # Fetch all blocks of type 'custom-webhook'
        blocks = await client.read_block_documents(block_type_slug='custom-webhook')
        
        # Assuming you want the first block, extract its ID
        if blocks:
            block_id = blocks[0].id
            return block_id
        else:
            return None

# Call the function and use the block ID for automation
block_id = get_custom_webhook_block_id()

This example assumes you have a block of type

CustomWebhook

registered in your Prefect environment. Adjust the logic if you need to filter or handle multiple blocks differently. For more details on working with blocks in Prefect, refer to the Prefect documentation on blocks.

@Marvin how can we forward the event payload to the sendnotification action in an automation. **hook = CustomWebhookNotificationBlock.load("test-hook") trigger = EventTrigger( expect={"my_function.error"}, match={"prefect.resource.id": "my_function"}, posture="Reactive", threshold=1, ) action = SendNotification( block_document_id=hook._block_document_id, subject="Error Notification", body="An error occurred in the task. Please investigate. {{event.payload}}", ) automation = Automation( name="Error", description="descriptions", id=uuid4(), trigger=trigger, actions=[action], ).create()**

To forward the event payload to the

SendNotification

action in an automation using Prefect 3.x, you can utilize Jinja templating to access the event's payload. The

{{event.payload}}

syntax in your notification body is designed to dynamically include the event payload in the notification. Here's a brief explanation and steps to ensure this works: 1. Jinja Templating: Prefect supports Jinja templating in notifications, allowing you to dynamically include event data. The

{{event.payload}}

placeholder will be replaced with the actual payload of the event that triggered the automation. 2. Ensure Event Contains Payload: Make sure that the event you are triggering on includes a payload. This is necessary for the

{{event.payload}}

to be populated correctly. 3. Prefect Automation Setup: When setting up the automation, ensure that the

EventTrigger

is correctly configured to listen for the events that include the desired payload. Here's how you might set it up in Python:

python
from prefect.blocks.notifications import CustomWebhookNotificationBlock
from prefect.automations import Automation, EventTrigger, SendNotification
from uuid import uuid4

hook = CustomWebhookNotificationBlock.load("test-hook")
trigger = EventTrigger(
    expect={"my_function.error"},
    match={"prefect.resource.id": "my_function"},
    posture="Reactive",
    threshold=1,
)
action = SendNotification(
    block_document_id=hook._block_document_id,
    subject="Error Notification",
    body="An error occurred in the task. Please investigate. {{event.payload}}",
)
automation = Automation(
    name="Error",
    description="descriptions",
    id=uuid4(),
    trigger=trigger,
    actions=[action],
).create()

For additional details on automations and event handling, you can refer to the Prefect documentation on automations and triggers.