What is AWS Lambda and Why to use it?

Vaibhav Srivastava
27 September 2019

AWS Lambda service was launched in 2014. It is a serverless computer service which lets you run code without provisioning or managing servers. Using this, you can run code for virtually any type of backend service – with zero administration. Lambda takes care of everything required to run and scale your code with high availability.

The code executes only when they are required and scale automatically, from probably 10-15 requests in a single day to hundreds in seconds. In AWS Lambda, you have to pay only for the time in which your code was executed and you have not to pay a penny when you are not running it.

Why use AWS Lambda?

It is used because of the numerous benefits of it such as you have no servers to manage. There is a continuous scaling and balancing of code. Automatic Fail-over and subsecond metering i.e. pay only for the used time, not reserved time

How does AWS Lambda work?

Also, known as Function as a Service, with lambda, you can run code for virtually any type of application or backend service – all with zero administration.

  • The developer has to upload the code to AWS Lambda or either can write code on the Lambda’s code editor.
  • Then set up the code to trigger from other AWS services, HTTP endpoints, or in-app activity.
  • Now AWS Lambda will work. It will run your code only when user will trigger it, using only essential computer resources.

Now pay for only the compute time you use.


There are many ways by which AWS Lambda can benefit your business. Some of these are:

1. Shorter time to Market:

No worry about renting & buying server infrastructure, its setup, etc. instead just think about how to properly plan, design and develop your applications.

2. Increased efficiency, pay what you use:

Earlier, whether you’re renting virtual servers or owning a datacenter you’re wasting resources. You’re paying for the time you reserve whether your applications are in use or not. With this, you pay only for the time user use it.

3. Compartmentalize and Reuse:

Serverless with AWS Lambda functions focuses your team to develop product services as independent components. These components can then be effectively reused, reducing the waste in spent time and effort.

4. Better management and testing:

Building an application consisting of many independent services will help you have a better project overview, an easier testing and better estimates.

As Amazon AWS Lambda, such numerous benefits, we at Quarks, use it in developing applications to provide the best services and products.

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