Javascript on AWS Lambda : How to use Node.js in a serverless architecture

[LeeAndro]

English | 2021 | ISBN: NA | 80 Pages | PDF, EPUB | 7.83 MB

This books helps you bring what you already know programming in Javascript with Node.​

Js to AWS Lambda.

Developing serverless applications is frustrating at first. Up until the "Hello world" everything is easy, but then a lot of small differences come to the surface. Things like why some requests are way slower than others, how to set the available memory, and why a sensible out is important. These are the results of how the Lambda execution environment works, and it is markedly different from running Node.Js on a server.

And it's not just how the function is run, but also what other services it interacts with. CloudWatch and Logs, IAM, and API Gateway, not to mention a database most functions will use. It's overwhelming at first.

This book systematically walks you through the configuration options and gives just the right amount of background information so that you'll know what parts are important. With it, you'll be able to set up your Lambda functions using best practices and avoid the common problems.

You'll

* Understand how the Lambda execution environment works

* Learn how to write Javascript serverless functions

* And walk away with knowledge about debuggers and HTTP APIs



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