example-NodeJs-service

A simple NodeJs service to compare with various backend technologies.

Blog post: comparing execution model of various backend technologies

A single endpoint which retrieves data from a Mongo

curl -X GET http://localhost:8080/books

Stack:

• NodeJs
• Express
• Mongoose

Setup Mongo

You can also setup a local Mongo running from a local Docker image. Pull the Mongo image and run remembering to use the -p option to the port. e.g:

docker run -p 27017:27017 --name some-mongo mongo

NodeJs features

• event-loop execution model:
  • asynchronous and non-blocking IO
  • single threaded
  • different styles to unblock event loop, callbacks, promises and async/await
• notes:
  • dont-block-the-event-loop
  • parallelism by multiple processes
  • Node excels for I/O-bound work, but for expensive computation it might not be the best option.