JD-Functions Serverless Functions Development

JD-Functions is focused on the Serverless solutions that are available today from the main cloud vendors.

Serverless Functions are typically designed to solve a single task, for which we write a small piece of business logic and then publish it. It is then able to scale depending on the number of users/requests made to it, without us worrying about it.

The great thing about Serverless Functions is you typically only pay for what you use, but not only that most come with a free tier before you even have to start paying.

Serverless Functions have endless uses from adding new features to your website to off loading tasks from your webserver. Functions are also great for prototyping and developing new tasks which are cost effective, they also provide inbuilt monitoring and stats so you can really see the value that they are adding.

Serverless Functions are a great way to resize and optimise images, for monitoring and reporting changes or as an API end point to provide data or storage.

Serverless Functions can be written in a number of standard programming languages supported out of the box or you can configure a Custom handler to support your preferred language.

Though if I use Serverless Functions am I locked to one cloud vendors platform? Yes and no, to just use the vendors features you may customize your code to interact with its features. You could also package the function up into a container and deploy it to container hosting instead.

Today every leading cloud service provider offers a Serverless platform including Microsoft Azure (Azure Functions), Amazon Web Services (AWS Lambda) and Google Cloud (Google Cloud Functions).

Serverless computing allows you to build and run applications and services without thinking about providing servers to run them on.

The main benefits are: No server management / Flexible scaling / High availability / Only pay for what you use.

Serverless computing is also known as Backend as a Service "BaaS" or Function as a Service "FaaS".

The name Serverless is a little odd as it still requires servers to run the code. The term Serverless signifies, that you do not need to purchase, rent, provision or maintain the servers or virtual machines to deploy the application onto. You can just write your code, test, upload then run with scaling handled for you.

Serverless computing allows you to grow from prototype to production, without having to think about capacity, reliability or performance.

Serverless also allows you to define tasks with Infrastructure as Code, this allows for repeatable build and configuration each time you deploy from your code.

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