AWS Lambda

What is AWS Lambda?

AWS Lambda is a serverless computing service provided by Amazon Web Services (AWS), one of the leading cloud service providers in the market. Serverless computing allows developers to build and run applications without the need to manage servers. AWS Lambda automatically scales your applications in response to incoming requests, meaning you only pay for the compute time you consume.

How does AWS Lambda Work?

AWS Lambda runs your code only when needed and scales automatically, from a few requests per day to thousands per second. You pay only for the compute time you consume – there is no charge when your code is not running. With AWS Lambda, you can run code for virtually any type of application or backend service – all with zero administration.

Key Features of AWS Lambda

  • Automatic Scaling: AWS Lambda automatically scales applications in response to incoming request traffic. You don’t need to worry about capacity planning.
  • Continuous Scaling: AWS Lambda scales out (not up) to maintain optimal performance as the workload grows.
  • Cost-Effective: With AWS Lambda, you only pay for the compute time you consume, which means you are charged when your code is running.
  • Highly Available: AWS Lambda is designed to provide high availability for both the service itself and for the functions it operates.

Benefits of Using AWS Lambda

Using AWS Lambda can bring numerous benefits to web developers, designers, and administrators.

  • No Server Management: AWS Lambda automatically runs your code without requiring you to provision or manage servers.
  • Continuous Scaling: Your application or service stays available at all times without any manual intervention.
  • Subsecond Metering: You’re charged for every 100ms your code executes and the number of times your code is triggered.
  • Consistent Performance: AWS Lambda can optimize your code execution time by choosing the right memory size for your function.


AWS Lambda provides a flexible and scalable solution for running applications in the cloud. By removing the need to manage servers, it allows developers to focus more on their core product and user experience. This makes it an invaluable tool for web developers, designers, and administrators.

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