⚡ Azure Function App

A serverless HTTP API built using Azure Functions (.NET Isolated Worker) demonstrating cloud-native development, dependency injection, structured logging, and serverless application design.

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Table of Contents

• Project Overview
• Architecture
• Technology Stack
• Function Workflow
• Implementation Highlights
• Getting Started
• Future Enhancements

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Project Overview

This project demonstrates an HTTP-triggered Azure Function built using the .NET isolated worker model.

The function exposes a lightweight serverless API endpoint that accepts HTTP GET/POST requests and returns a personalized greeting response.

The implementation demonstrates fundamental Azure Functions concepts including:

• HTTP triggers
• Dependency injection
• Structured logging
• Serverless execution model
• Cloud-native application development

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Architecture

flowchart LR

Client[Client Application]
    --> Function[Azure Function<br/>HTTP Trigger]

Function --> Logic[Function Business Logic]

Logic --> Response[HTTP Response]

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Technology Stack

Cloud

• Microsoft Azure Functions
• Azure Functions Runtime

Backend

• C#
• .NET Isolated Worker Model
• HTTP Trigger

Development

• Visual Studio
• Azure Functions Core Tools
• Git

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Function Workflow

1. Client sends HTTP GET/POST request.
2. Azure Functions runtime activates the HTTP trigger.
3. Function validates the incoming name parameter.
4. Business logic generates the response.
5. HTTP response is returned to the caller.

Example:

GET /api/HelloFunction?name=Raj

Response:

Hello, Raj!

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Implementation Highlights

• Developed using Azure Functions .NET isolated worker model.
• Implemented HTTP-triggered serverless API endpoint.
• Applied dependency injection using ILoggerFactory.
• Added structured logging using Microsoft.Extensions.Logging.
• Implemented clean request-response handling using HttpRequestData and HttpResponseData.

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Getting Started

Prerequisites

• .NET SDK
• Azure Functions Core Tools
• Visual Studio 2022

Run Locally

git clone https://github.com/Raj-Kumar-Arora/AzureFunctionApp.git

cd AzureFunctionApp

dotnet restore

func start

Once started, the Azure Functions runtime hosts the HTTP-triggered endpoint locally for testing and development.

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Future Enhancements

• Add Azure Service Bus trigger
• Add Blob Storage integration
• Add Application Insights monitoring
• Add Azure Key Vault configuration
• Deploy using Azure DevOps / GitHub Actions CI/CD
• Containerize with Docker