eslint-plugin-must-use-await

Flags use of callback functions and .then(), for users of ES2017's async/await

This plugin catches:

Functions that have options including common callback identifiers, like cb, callback and done.
The old pre-ES2017 .then() syntax
Invocations of err-first functions

All of which you can and should replace with async/await.

Installation

You'll first need to install ESLint:

$ npm i eslint --save-dev

Next, install eslint-plugin-must-use-await:

$ npm install eslint-plugin-must-use-await --save-dev

Note: If you installed ESLint globally (using the -g flag) then you must also install eslint-plugin-must-use-await globally.

Add must-use-await to the plugins section of your .eslintrc configuration file. You can omit the eslint-plugin- prefix:

{
    "plugins": [
        "must-use-await"
    ]
}

Then configure the rules you want to use under the rules section.

Magic numbers: 1 is warn, 2 is error.

{
    "rules": {
        "must-use-await/must-use-await": 1,
    }
}