Which AWS Lambda programming language should you use?

Which AWS Lambda programming language should you use?

While JavaScript is definitely the top choice for many developers, there are other programming languages you can use with AWS Lambda, which might be more efficient for your use case. Here are all the details you need to know about the 6 most popular programming languages for AWS Lambda before making a decision. To me personally, when I think programming languages I think JavaScript and while 67% of the developers out there might think the same (at first) that does not imply it’s the most efficient language to use with AWS Lambda.

To me personally, when I think programming languages I think JavaScript and while 67% of the developers out there might think the same (at first) that does not imply it’s the most efficient language to use with AWS Lambda.

So without further ado, here we go.

1. Java

Java has been in service for decades and is, to this day, a reliable option when choosing the backbone of your stack. With AWS Lambda is no different as it makes a strong candidate for your functions.

Java applications in AWS Lambda have the following merits.

Reliable and well-tested libraries. The libraries will make life easy for you through enhanced testability and maintainability of AWS Lambda tasks.

Predictive performance. While Java has slower spin up time, you can easily predict the memory needs of your functions and to counteract those dreaded colds starts you can just up your memory allocation.

Tooling Support. Java has a wide range of tooling support which includes Eclipse, IntelliJ IDEA, Maven, and Gradle among others.

If you’re wondering how Java remains an efficient AWS lambda language, here is the answer. Java has unique characteristics like multi-thread concurrency, platform independence, security, and object-orientation.

2. Node.js

I’m definitely biased but Node.js is probably the best one on this list. I know it has it’s downfalls but the overwhelming support that Node had in the past years has to have its merits.

Why Node.js?

Modules. As of now, there are 2257 plugins on npm tagged “aws-lambda” which help developers with their applications in a lot of different ways from running Lambda locally to keeping vital functions warm to (avoid cold-starts) Spinup times. Node.js has better spin-up times than C## or Java which make it a better option for client facing applications that risk suffering from uneven traffic distribution.

Community. It’d be a miss if I didn’t mentionin this as one of the major draw-ins of Node. You can always count on its community support to find a solution to your problem.

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