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What is Azure Functions?

Azure Functions is an event driven, compute-on-demand experience that extends the existing Azure application platform with capabilities to implement code triggered by events occurring in virtually any Azure or 3rd party service as well as on-premises systems.
Azure Functions is a tool in the Serverless / Task Processing category of a tech stack.

Who uses Azure Functions?

143 companies reportedly use Azure Functions in their tech stacks, including accuRx, Global, and Core Banking.

472 developers on StackShare have stated that they use Azure Functions.

Azure Functions Integrations

JavaScript, GitHub, Node.js, Visual Studio Code, and Java are some of the popular tools that integrate with Azure Functions. Here's a list of all 24 tools that integrate with Azure Functions.
Pros of Azure Functions
Pay only when invoked
Great developer experience for C#
Multiple languages supported
Great debugging support
Can be used as lightweight https service
Easy scalability
Event driven
Azure component events for Storage, services etc
Poor developer experience for C#
Decisions about Azure Functions

Here are some stack decisions, common use cases and reviews by companies and developers who chose Azure Functions in their tech stack.

REST API for SaaS application

I'm currently developing an Azure Functions REST API with TypeScript, tsoa, Mongoose, and Typegoose that contains simple CRUD activities. It does the job and has type-safety as well as the ability to generate OpenAPI specs for me.

However, as the app scales up, there are more duplicated codes (for similar operations - like CRUD in each different model). It's also becoming more complex because I need to implement a multi-tenancy SaaS for both the API and the database.

So I chose to implement a repository pattern, and I have a "feeling" that .NET and C# will make development easier because, unlike TypeScript, it includes native support for Dependency Injection and great things like LINQ.

It wouldn't take much effort to migrate because I can easily translate interfaces and basic CRUD operations to C#. So, I'm looking for advice on whether it's worth converting from TypeScript to.NET.

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Azure Functions's Features

  • Easily schedule event-driven tasks across services
  • Expose Functions as HTTP API endpoints
  • Scale Functions based on customer demand
  • Develop how you want, using a browser-based UI or existing tools
  • Get continuous deployment, remote debugging, and authentication out of the box

Azure Functions Alternatives & Comparisons

What are some alternatives to Azure Functions?
AWS Lambda
AWS Lambda is a compute service that runs your code in response to events and automatically manages the underlying compute resources for you. You can use AWS Lambda to extend other AWS services with custom logic, or create your own back-end services that operate at AWS scale, performance, and security.
Kubernetes is an open source orchestration system for Docker containers. It handles scheduling onto nodes in a compute cluster and actively manages workloads to ensure that their state matches the users declared intentions.
JavaScript is most known as the scripting language for Web pages, but used in many non-browser environments as well such as node.js or Apache CouchDB. It is a prototype-based, multi-paradigm scripting language that is dynamic,and supports object-oriented, imperative, and functional programming styles.
Git is a free and open source distributed version control system designed to handle everything from small to very large projects with speed and efficiency.
GitHub is the best place to share code with friends, co-workers, classmates, and complete strangers. Over three million people use GitHub to build amazing things together.
See all alternatives

Azure Functions's Followers
692 developers follow Azure Functions to keep up with related blogs and decisions.