However, I don’t typically recommend this method because it’s very difficult to write a full-fledged application from the console. This is a web interface provided by AWS for managing and accessing their services. There are three ways you could create a Lambda function on AWS: It could be something as simple as retrieving a blog post, creating a blog post, or even sending an email. An event triggers a Lambda function and dies after execution. It allows you to run code without having to deal with servers in the cloud. AWS Lambda functionsĪs I said in the beginning, Lambda is a computing service offered by AWS. That’s because you’re going to learn something cool-no, something mind-blowing. With that established, now’s the time to hold onto your hat. That’s more than what’s held by any other provider. What’s Amazon Web Services?Īmazon Web Service, or AWS, is a leader in cloud computing platforms.Īccording to their website, AWS provides a “highly reliable, scalable, low-cost infrastructure platform and powers hundreds of thousands of businesses in 190 countries around the world.” According to Canalys’ 2018 report, AWS holds 32.6% of the market share. One of the entities responsible for taking care of these servers is Amazon Web Services. It only means the burden of managing these servers is taken away from you. Serverless doesn’t mean an absence of servers, because there actually are servers. Instead, the focus is on your business logic, broken down into smaller, single-purpose functions like so: There is no need for server provisioning, monitoring, logging, or managing the underlying infrastructure. Now, a shift in cloud computing known as serverless, or function-as-a service, has emerged in parallel. However, server provisioning, scaling, and monitoring was still a difficult task. In just minutes, you could spin up servers in multiple regions and deploy applications in seconds. You no longer needed to entertain the idea of building your own data centers anymore. Recently, a new era paved the way for running an application in the cloud. The process was tedious, difficult, and very demanding. Back then, companies built their own data centers. What is serverless?įirst, let me take you back to the time when applications were hosted on physical machines in server rooms. In this post, you’ll learn about AWS Lambda, serverless, and how to build a scalable image processing app using AWS Lambda and Node.js. As someone who’s presumably no stranger to the internet, you must have seen the terms serverless, function-as-a-service, or AWS Lambda thrown across your screen a few times. For that reason, you may be wondering just how it works, and how you’d use it to build a highly scalable event-driven application. AWS Lambda is a service that confuses many people.
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