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# Lambda

A lambda represents a block of code that may be given as an argument or a parameter to a function call. Lambda functions are short, simple functions written with very little syntax that may be kept in a variable and return a result. They usually don't have a stated name. Because of their simplicity, lambda functions reduce the number of lines of code in most of the cases and are used when a function is needed temporarily for a short period of time. It is also possible to define a lambda function and call it right after the function declaration, which cannot be done with def declared functions.

## AWS Lambda

**ONLY SOME LINKS AND HINTS**

Amazon Web Services (AWS) provides the Lambda compute service, which allows customers to run code without having to maintain or deploy their own servers. (https://aws.amazon.com/lambda/?c=ser&sec=srv) The cloud provider will process the code that has been written and deployed, as well as offer the required services and computational capacity. AWS Lambda supports several programming languages including Java, Node.js, SmallTalk, Python or C#, and allows bringing any artefact or library

→ AWS provides an SDK that makes it easier for you to write your Lambda functions and integrate them with other AWS services. (https://www.serverless.com/aws-lambda )

→ 1 million requests free per month (only on amazon free tier?)

https://www.cloudzero.com/blog/aws-lambda ()

https://www.checkpoint.com/cyber-hub/cloud-security/what-is-serverless-security/benefits-of-aws-lambda-for-cloud-computing/ (7 benefits of aws lambda)

https://www.serverless.com/aws-lambda (benefits, limitations of aws lambda)

https://en.wikipedia.org/wiki/AWS_Lambda

https://crmtrilogix.com/Cloud-Blog/AWS/Lambda-and-FaaS/213 (faas and lambda)

https://www.contino.io/insights/aws-lambda-use-cases (9 use cases):

* Operating serverless websites
* Rapid document conversion
* Predictive page rendering
* Working with external services
* Log analysis on the fly
* Automated backups and everyday tasks
* Processing uploaded S3 objects
* Backend cleaning
* Bulk real-time data processing

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