Azure Functions is a serverless event driven experience that extends the existing Azure App Service platform. These nano-services can scale based on demand and you pay only for the resources you consume.
Try It For Free
Event based Write code that can be triggered by virtually any event in Azure, 3rd party services, or on-premises systems.
Accelerate development Write your code in the Functions editor and test immediately.
Serverless Built on a serverless architecture, which handles the heavy lifting of building highly available, scalable, end-to-end Functions.
Create Functions in a variety of languages, including JavaScript, C#, Python, and PHP, as well as scripting options such as Bash, Batch, and PowerShell. And do it all in an easy-to-use web-based interface. Or upload and trigger pre-compiled code built with your favorite development tool.
Quickly and easily iterate on Azure Functions with continuous deployment using Visual Studio Team Services, GitHub, or BitBucket. Plus, use the embedded logging environment to monitor and troubleshoot.
Pay only for the time your code is running. You’ll be charged based on the number of resources Azure Functions needs, only for as long as it takes your code to execute.
Use Azure Functions when events occur in internal APIs or business systems and deliver results directly to your on-premises databases or business solutions.
Azure Functions supports an event based on a timer using CRON job syntax. For example, you could execute code that runs every 15 minutes and cleans up a database table based on custom business logic.
Azure Functions supports triggering an event based on an activity in an Azure service. For example, you could execute code that reads newly discovered test log files in an Azure Blob Storage container and transforms this into a row in an Azure SQL Database table.
Azure Functions supports triggers based on activity in a SaaS service. For example, when a file is saved in OneDrive, this triggers a function that uses the Microsoft Graph API to modify the spreadsheet, creating additional charts and calculated data.
Azure Functions can power a single page app. The app calls functions using the WebHook URL, saving user data and deciding what data to display. Or, you can do simple customizations, such as changing ad targeting by calling a function and passing it user profile information.
A mobile backend can be just a set of HTTP APIs that are called from a mobile client using the WebHook URL. For example, a mobile application could capture an image, then call an Azure Function to get an access token for uploading to blob storage. A second Azure Function is triggered by the blob upload and resizes the image to be mobile-friendly.
For example, IoT devices send messages to Azure Stream Analytics, which then calls an Azure Function to transform the message. This function processes the data and creates a new record in an Azure SQL Database.
Azure Functions can be used to customize the behavior of a bot using a WebHook. For example, you can create an Azure Function that processes a message using Cortana Analytics and call this function using Bot Framework.
