This repository contains a Node.js app that acts as a backend service with a restful API and WebSockets. It can be used with this UI https://github.com/Nachox07/crypto-app-frontend in order to visualize the changes and data. The tech stack used is the following:

• Express with Typescript
• MongoDB as NoSQL database
• Celebrate and Joi for request validation and error handling
• Socket.io as websocket server

Firstly all the dependencies need to be installed, as this is a JS project node is necessary plus a dependency installer, the preference here is yarn

Once these tools are installed you need to run on the project folder for dependencies installation:

yarn

MongoDB is an important dependency and it needs to run as a local service, here are the docs https://docs.mongodb.com/manual/installation/

Once it is running DB needs to be populated to show some data by using:

yarn db:generate

Now we can check if the population was succeeded by doing a simple query on the new db created crypto-app-db-development on the accounts collection like this:

$ use crypto-app-db-development

$ db.accounts.find({})

For data structure reference, please check the types on src/accounts/types.ts

The app can be running in two different environment, the domain and port will be http://localhost:8080.

Nodemon will be pending of file changes and it will reload the app.

yarn server:dev

App is compiled to ES5 and it starts running.

yarn server

yarn test:types

The testing is performed for now by the Cypress suites included on the Frontend project mentioned above