Typescript Node Environment

A minimal node-based development environment configured to use Typescript, Jasmine, Istanbul and Docker.

Features

• Code and tests all written and compiled from Typescript
• Supports using 3rd party imports using ES6-style importing
• Tests and code coverage in Typescript
• Fast dev env
• Build a Docker container

Commands

Installing

Call npm i to install dependencies.

Running

Call npm start to run the program, located at src/index.ts.

Running tests

Call npm test to run through the full suite of tests in one run.

Testing (bdd)

Call npm run test-bdd to run through the full suite of bdd tests in one run.

Testing (coverage)

Call npm run coverage to view the html docs of the coverage report (a coverage xml file and html docs are automatically generated after running the tests).

Building Docker

Call npm run docker-build to build a Docker container for the project.

Running Docker

Call npm run docker-run to run the Docker container locally, routing local ports.

How to

Adding code

The entry file for compiling and running the Typescript is 'src/index.ts'. Add your own code by creating a file with the '.ts' extension in the src directory (or subdirectory).

Writing tests

Add your unit tests to the src directory (or subdirectory) with the file extension '.spec.ts'.

Mocking imports

You can use the Mockery library to override the imports for unit testing

Opening additional ports

When extra ports are needed to be exposed, these will need adding to the Dockerfile, the following snippet can be used:

EXPOSE {port}

In addition, the package.json file will need modifying, the extra port will need adding to the map when running the Docker instance. For example, port 8080 is currently mapped to the local port 8080:

{
  ...
  "scripts": {
    ...,
    "docker-run": "docker run -p 8080:8080 app"
  },
  ...
}

Add 3rd party libraries

Install the library via:

npm i {libraryName}

e.g.

npm i jquery

npm i rxjs

Start using the library via ES6 import:

e.g.

import * as jquery from 'jquery';

import { Subject } from 'rxjs';

Licence

All code is licenced under MIT.