process-reporting 1.1.5

BPMN reporting decorator for Azure Functions

BPMN Reporting Decorator

A Pythonic decorator to track function execution and report events (STARTED, COMPLETED, ERROR) in the background.

Features

• Non-blocking: Uses asyncio.create_task to fire events while your code runs.
• Async & Sync: Works with both async def and standard def functions.
• Masking: Built-in support for Mustache-based payload transformation.
• Error Tracking: Automatically reports exceptions before re-raising them.

Usage

1. Basic Setup

Wrap any function to track its lifecycle.

import asyncio
from bpmn_reporting import bpmn_element

@bpmn_element(id="User_Task_01", process_id="Order_Process")
async def my_business_logic(data):
    # Do work here
    return {"status": "processed"}


# Execute
if __name__ == "__main__":
    asyncio.run(my_business_logic({"id": 123}))

2. Masking & Transformations

Use mask_params to remove sensitive data or reformat payloads using Mustache templates or functions.

@bpmn_element(
    id="Process_Payment",
    mask_params={
        "password": None,  # Removes field from reporting
        "total": "{{amount}} {{ccy}}",  # Recomputes field using Mustache
        "user": lambda p: p['email']  # Recomputes using a function
    }
)
async def process_payment(payload):
    # original payload: {"password": "123", "amount": 10, "ccy": "EUR", "email": "[e-mail]"}
    return {"tx_id": "ABC-123"}

Configuration

Set the following environment variables in your local .env or Azure Function App settings:

Variable	Required	Description	Default
REPORTING_SERVER	true	Base URL of the reporting API
REPORTING_PROCESS_ID		Default Process ID if not set in decorator
REPORTING_PROCESS_VERSION		Version of the process	1.0
REPORTING_PROCESS_DEBUG		Set to true to see event logs	false

Testing

python3 -m pytest tests/