currency-exchange

Bee Travels Currency Exchange Service - Node.js

The currency exchange service is a microservice designed to convert currency values for the Bee Travels travel application using an external API.

APIs

Prerequisites

We recommended using Node Version Manager (NVM) to run various versions of Node. if you don't have it already installed check it out Installing NVM here

Or just use Node v10.16.3 ( Which is what we used to test this service )

node -v
v10.16.3
npm -v
6.9.0

How to Run

• Local with no containers
• Local with containers
• Deploy to the Cloud

Local with no containers

Prerequisites

• NodeJS v10+
• NPM

Steps

git clone https://github.com/bee-travels/bee-travels-node
cd src/currencyexchange

npm install

#if developing, install dev Dependacies
npm install --save-dev

#build
npm run build

#run unittests
npm run test

#run the environment in development mode
npm run dev

#additional development commands
echo "run linter"
npm run lint

echo "run code formatter"
npm run format

#run production
npm run start

Then simply navigate to http://localhost:9201 and test out this microservice API endpoints using the Swagger test harness page.

Local with containers

Prerequisites

• Docker for Desktop

Steps

git clone https://github.com/bee-travels/bee-travels-node
cd src/currencyexchange
docker build -t beetravels-node-currencyexchange .
docker run -it beetravels-node-currencyexchange

Then simply navigate to http://localhost:9201 and test out this microservice API endpoints using the Swagger test harness page.

Deploy to the Cloud

Bee Travels currently supports deploying to the Cloud using the following configurations:

• Helm
• K8s
• Knative

For instructions on how to deploy the currency exchange service to the Cloud, check out the config repo for the Bee Travels project.

VSCode Extension suggestions

Prettier - Code formatter

https://bit.ly/33e690e

read more about Jest - a delightful JavaScript Testing Framework here

moved tests out of test folder to be adjacent to files been tested - motivations:

• scale - each file should have a corresponding test file with pattern test or spec https://kentcdodds.com/blog/colocation

uses npm lib csvtojson very nice as cuts down lines code drastically.

mostly using async / await over explicit promises. async/await uses promises under the covers, also reduces lines of code drastically.

Resources

The Cost of Logging - Pino vs Winston benchmarks by Matteo Collina