Lambda
AWS Lambda is a compute service that runs your code in response to events and automatically manages the underlying compute resource for you.
t can automatically run code in response to modifications to objects in S3 bucket, messages arriving in kinesis stream, or table update in dynamo DB.
AWS Lambda lets you run code without provisioning or managing servers. You pay only for the compute time you consume - there is no charge when your code is not running.
Just upload your code and Lambda takes care of everything required to run and scale your code with high availability.
ou can set up your code to automatically trigger from other AWS services or call it directly from any web or mobile app.
In short lambda is a service to run your code, all you need is to supply the code.
Supported programming language is JavaScript.
It is designed to provide 99.99% availability
Pricing
First 1 st million requests is free there after $0.20.
Duration is calculated from the time your code begins executing until it returns or otherwise terminates, rounded up to nearest 100ms.
The price depends upon the amount of memory you allocate to your function. You are charged $0.00001667 for every GB
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