How to trigger a Azure Function with parameters from a POST request

Question

I need to send a POST request (with user captured data) to azure function and I would like Azure function to use this as parameters and run.

I can see there are many ways to trigger an Azure function in the docoumentation however I have not been able to figure out how to do the above when supplying user input.

For more context I am developing a simple user form where the user enters some data. Once the user clicks submit I will need fire off a POST request to Azure function to carry out some processing.

Answer 1

The data from the submitted form will be a Bytes object. You must convert it to a string and then parse the parameters. This sample code handles the submission of a basic contact info form.

import logging

import azure.functions as func

from urllib.parse import parse_qs


def main(req: func.HttpRequest) -> func.HttpResponse:
    # This function will parse the response of a form submitted using the POST method
    # The request body is a Bytes object
    # You must first decode the Bytes object to a string
    # Then you can parse the string using urllib parse_qs

    logging.info("Python HTTP trigger function processed a request.")
    req_body_bytes = req.get_body()
    logging.info(f"Request Bytes: {req_body_bytes}")
    req_body = req_body_bytes.decode("utf-8")
    logging.info(f"Request: {req_body}")

    first_name = parse_qs(req_body)["first_name"][0]
    last_name = parse_qs(req_body)["last_name"][0]
    email = parse_qs(req_body)["email"][0]
    cell_phone = parse_qs(req_body)["cell_phone"][0]

    return func.HttpResponse(
        f"You submitted this information: {first_name} {last_name} {email} 
        {cell_phone}",
        status_code=200,
    )