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🏗️Azure Function

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Creating and Deploying Your First Azure Function: A Step-by-Step Guide

Azure Functions provides a serverless compute platform that allows you to run code without managing infrastructure. In this tutorial, we’ll create a simple HTTP-triggered Azure Function using Python and deploy it via the Azure portal.

Here are simple bullet points for common Azure Function use cases:

  • Event-driven data processing

  • Real-time file processing (when a file is uploaded to Blob Storage)

  • HTTP APIs / lightweight backend services

  • Webhook handlers

  • Scheduled jobs (cron jobs)

  • Email or notification automation

  • Queue message processing

  • IoT data processing

  • Database change processing

  • Image or video processing

  • Data transformation (ETL tasks)

  • Background tasks for web apps

  • Chatbot backend logic

  • Payment processing triggers

  • Log processing & monitoring automation

  • Integration between different systems (e.g., CRM to ERP sync)

  • Serverless microservices

  • Machine learning model trigger & inference

  • Report generation automation

  • DevOps automation (CI/CD task triggers)

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Step 1: Create a Function App

  1. Log in to the Azure portal (https://portal.azure.com/arrow-up-right).

  2. Click on “Create a resource” and search for “Function App”.

  1. Click “Create” on the Function App page.

4. Fill in the basics:

  • Subscription: Choose your subscription

  • Resource Group: Create new or select existing

  • Function App name: Enter a unique name

  • Publish: Choose “Code”

  • Runtime stack: Select “Python”

  • Version: Choose the latest version (e.g., 3.9)

  • Region: Select a region close to you

5. Click “Review + create”, then “Create”.

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Step 2: Create a Function

  1. Once your Function App is deployed, go to the resource.

  2. In the left menu, under “Functions”, click “Functions”.

  3. Click “Add” to create a new function.

  4. Choose “HTTP trigger” as the template.

  5. Name your function (e.g., “HttpTrigger1”) and set Authorization level to “Anonymous” for this example.

  6. Click “Add” to create the function.

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Step 3: Write the Function Code

  1. Click on your newly created function.

  2. In the left menu, under “Developer”, click “Code + Test”.

  3. Replace the default code with the following Python code:

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