Azure Function Deployment Guide (Visual Studio Code)

Deploying Azure Functions is surprisingly smooth — whether you're using Visual Studio, VS Code, or Azure CLI. Here's a step-by-step guide using Visual Studio Code, which is ideal for C# developers.

🛠 Prerequisites

• Visual Studio Code (latest version)
• .NET SDK
• Azure Functions extension for VS Code
• Azure CLI installed
• Azure subscription (free or paid)

🚀 Step-by-Step: Deploy Azure Function (HTTP Trigger)

Step 1: Create a New Azure Function Project

• Open Visual Studio Code.
• Press Ctrl+Shift+P → Select Azure Functions: Create New Project.
• Choose a folder, language (C#), and trigger type (HTTP Trigger).
• Name your function (e.g., HelloFunction) and set access level to Function.

Step 2: Write Your Function Code

using System.Net;
using Microsoft.Azure.Functions.Worker;
using Microsoft.Azure.Functions.Worker.Http;
using Microsoft.Extensions.Logging;

public class HelloFunction
{
    private readonly ILogger _logger;

    public HelloFunction(ILoggerFactory loggerFactory)
    {
        _logger = loggerFactory.CreateLogger<HelloFunction>();
    }

    [Function("HelloFunction")]
    public HttpResponseData Run(
        [HttpTrigger(AuthorizationLevel.Function, "get", "post")] HttpRequestData req)
    {
        _logger.LogInformation("C# HTTP trigger function processed a request.");

        var response = req.CreateResponse(HttpStatusCode.OK);
        response.Headers.Add("Content-Type", "text/plain; charset=utf-8");
        response.WriteString("Hello from Azure Function!");

        return response;
    }
}
  

Step 3: Test Locally

• Press F5 to run the function locally.
• Visit http://localhost:7071/api/HelloFunction in your browser.
• You should see: Hello from Azure Function!

Step 4: Sign in to Azure

• Open terminal in VS Code.
• Run: az login
• Follow the browser prompt to authenticate.

az login

Follow the browser prompt to authenticate.

Step 5: Create a Function App in Azure

az functionapp create --resource-group MyResourceGroup \
  --consumption-plan-location eastus \
  --runtime dotnet \
  --functions-version 4 \
  --name MyUniqueFunctionAppName \
  --storage-account mystorageaccountname
  

Step 6: Deploy Your Function

• Press Ctrl+Shift+P → Select Azure Functions: Deploy to Function App.
• Choose your subscription and Function App name.
• Wait for deployment to complete.

Step 7: Test in Azure

• Visit: https://<your-function-app>.azurewebsites.net/api/HelloFunction
• You should see: Hello from Azure Function!

✅ Summary

Step	Action
1	Create project in VS Code
2	Write function code
3	Test locally
4	Login to Azure
5	Create Function App
6	Deploy from VS Code
7	Test live endpoint

Pro Tip

You can automate deployment using GitHub Actions or Azure DevOps for CI/CD pipelines.