Azure Documentation

Step 1: Initialize Your Project

Open your terminal or command prompt, navigate to your desired project directory, and run the following command:

func init MyServerlessProject --worker-runtime node

This creates a new directory named MyServerlessProject with the basic structure for an Azure Functions project.

Step 2: Create a New Function

Navigate into your project directory and create a new HTTP-triggered function:

cd MyServerlessProject
func new --template "HTTP trigger" --name MyHttpFunction

This command creates a new function named MyHttpFunction with an HTTP trigger template.

Step 3: Implement Your Function Logic

Open the MyHttpFunction/index.js file in your code editor. You'll find starter code for an HTTP function. Modify it to add your custom logic.

For example, to return a personalized greeting:

module.exports = async function (context, req) {
    context.log('JavaScript HTTP trigger function processed a request.');
    const name = (req.query.name || (req.body && req.body.name));
    const responseMessage = name
        ? 'Hello, ' + name + '. This HTTP triggered function executed successfully!'
        : 'This HTTP triggered function executed successfully. Pass a name in the query string or in the request body for a personalized response.';

    context.res = {
        status: 200,
        body: responseMessage
    };
};

Step 4: Test Your Function Locally

Start the Azure Functions host locally:

func start

Once the host is running, you'll see the local URL for your function (e.g., http://localhost:7071/api/MyHttpFunction). You can test this URL in your browser or using tools like cURL. Try adding a name query parameter, like:

http://localhost:7071/api/MyHttpFunction?name=Developer

Step 5: Deploy to Azure

Ensure you are logged in to Azure:

az login

Then, deploy your function app:

func azure functionapp publish <YourFunctionAppName>

Replace <YourFunctionAppName> with a globally unique name for your function app in Azure.

After deployment, Azure will provide you with the URL for your live function.