How to create and deploy an Azure Function

Azure Functions is a serverless compute service that allows you to run event-triggered code in the cloud without worrying about infrastructure. In this tutorial, we’ll walk through the steps of creating and deploying an Azure Function using the Azure portal.

Prerequisites

Before getting started, make sure you have the following prerequisites:

• An Azure account
• Microsoft Visual Studio or Visual Studio Code
• Azure Functions Core Tools

Step 1: Create an Azure Function

1. Log in to the Azure portal.
2. Click on the “+” sign in the left-hand panel and select “Function App” from the list of resources.
3. Fill in the required information for your function app, such as the name, subscription, resource group, and operating system. You also have the option to choose your preferred runtime stack and version.
4. Click “Review + create” to check if the details are correct, then click “Create” to create your function app.

Step 2: Add a Function to the App

1. Once your function app is created, click on its name to open it.
2. From the left-hand panel, select the “Functions” tab.
3. Click on the “+ Add” button to add a new function to the app.
4. Choose your preferred method of development, such as a template or a custom function.
5. Select the programming language you want to use for your function.
6. Choose a trigger for your function, such as an HTTP request or a timer.
7. Fill in the required information for your trigger, such as the function name, access rights, and parameters.
8. Click “Create” to create your function.

Step 3: Write Code for the Function

1. Open the function you just created by clicking on its name in the “Functions” panel.
2. Click on the “Code + Test” tab to view and edit the code of your function.
3. Write the necessary code for your function in the code editor.
4. Click on “Save” to save your changes.

Step 4: Test the Function

1. Click on the “Test” tab to test your function.
2. Fill in the required test data, such as the HTTP request body or input parameters.
3. Click on “Run” to test your function.
4. Verify the output of your function in the response section.

Step 5: Deploy the Function

1. Click on the “Functions” tab to return to the “Functions” panel.
2. Click on the “Deploy” button to deploy your function.
3. Choose your preferred deployment method, such as FTP or git.
4. Follow the prompts to complete the deployment process.

Conclusion

In conclusion, Azure Functions provides a platform for developers to create, deploy, and manage event-driven applications with ease. With the steps outlined in this tutorial, you can create and deploy an Azure Function in just a few steps. The use cases for Azure Functions are endless, from Webhooks to report generation, and with the flexibility to create custom functions using your preferred programming language, the ability to create capabilities built on the Azure platform is exciting.