How to create a Function App with a Webhook, add HTTP triggered function(a hello message with your name) and test it.

A function app lets you group functions as a logical unit for easier management, deployment, scaling, and sharing of resources.

A webhook allows an external service to start a particular runbook in Azure Automation through a single HTTP request. The webhook sends the information about the event to the specified URL, which can then trigger a specific action in the receiving application. For example, a webhook might be used to send a notification to a chat application when a user subscribes to a particular channel.

The HTTP trigger lets you invoke a function with an HTTP request. You can use an HTTP trigger to build serverless APIs and respond to webhooks.

Step 1:

Visit portal.azure.com, login or sign up if you don't have an account, you can get a free account at azure.microsoft.com/en-us/free/

Step 2:
Search for function app and click on create

Step 3:

Subscription: Choose the subscription where you wish to create the resource.
Resource group: Choose the resource group where you wish to create the resource. If you wish to create a new group click on create a new option.
Function App name: Enter a preferred unique name.
Do you want to deploy code or container image?: Code
Runtime stack: .NET
Region: Select the location where you wish to create the account. Leave the rest on default and click on "Review+Create"

Step 4:
Create

Step 5:
Your function app has been successfully deployed! Click on "Go to Resource"

Step 6:
To create an HTTP trigger function, click on "Functions" and then click on "create"

Step 7:
Select "HTTP trigger", give it a new funcion name and click on "create"

Step 8:
Your HTTP trigger function hs been successfully created!

Step 9:
When something is triggered, that's when the code runs so to test the trigger function that was created, click on "get function Url" and copy to clipboard.