Book connected back to battle on the top of Koa – 1 】 【 take three minutes to build a simple Koa service, we set up a foundation of Koa after application, want to preview, after modify the code will need to restart the project, it doesn’t accord with our efficient, developers, and a new era that we have to transform it, make it as the React or Vue as real-time thermal load, Vertical enjoy silky!

Life is limited, so don't waste it rebooting projects! -- Von Yisho

A, nodemon

Website:nodemon.io/

As you can see, the website says it will monitor your code and automatically restart the project.

Second, the integration

npm install -g nodemon
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Three, test,

nodemon app
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4. Configure package to run scripts quickly and ignore files

1. Run the script quickly

// Run the NPM run dev commandCopy the code

2. Configure files

Nodemon listens to files that are ignored by git.

{
  "watch": ["src"]."ext": "ts"."env": {
    "NODE_ENV": "development"
  },
  "ignore": [
    ".git"."node_modules/**/node_modules"],}Copy the code

The instructions are as follows:

Parameter names	role
ignore	Ignored files or folders
watch	The directory or file to listen to
ext	Name extension of the monitored file
env	Environment variable setting
watch	The directory or file to listen to

Visit the following links for more configuration

Making configuration

Five, this Demo source address

GitHub

Six, reference

1. Nodemon website

2. Nodemon Bug discussion area

Write your first Koa middleware