eslint-plugin-async

0.1.1 verified Sat Apr 25 auth: no javascript abandoned

An ESLint plugin providing linting rules for async functions, specifically focusing on missing await expressions. Version 0.1.1 is the latest and only stable release. It is a small, early-stage plugin with limited rules (e.g., 'missing-await-in-async-fn'). No recent updates; development appears stagnant.

Common errors

error Error: ESLint configuration in .eslintrc is invalid: - Unexpected top-level property "async" ↓

cause Putting rule configuration directly under 'async' key instead of inside 'rules' object.

fix

Ensure rules are under 'rules' key: {"rules": {"async/missing-await-in-async-fn": 1}}

error Error: Failed to load plugin 'async' declared in '.eslintrc': Cannot find module 'eslint-plugin-async' ↓

cause Plugin not installed or installed globally but ESLint is local.

fix

Run 'npm install --save-dev eslint-plugin-async' in your project.

Warnings

gotcha The plugin is no longer maintained; it has only one rule and may not work with newer ESLint versions. ↓

fix Consider using eslint-plugin-unicorn's 'no-empty-await' or custom rules instead.

gotcha The rule 'missing-await-in-async-fn' does not check for a common case: promise returned without await inside async function. ↓

fix Alternatively, use ESLint's built-in 'require-await' rule (ESLint >= 3.11.0) which also catches functions that can be synchronous.

Install

npm install eslint-plugin-async

yarn add eslint-plugin-async

pnpm add eslint-plugin-async

Imports

plugin
wrong
```
plugins: ['eslint-plugin-async']
```
correct
```
plugins: ['async']
```
ESLint expects the short plugin name ('async') in .eslintrc; the full npm package name is only used for installation.
missing-await-in-async-fn
wrong
```
"missing-await-in-async-fn": 1
```
correct
```
"async/missing-await-in-async-fn": 1
```
Rule must be prefixed with plugin namespace 'async/'.

Quickstart

Shows configuration enabling the missing-await rule, which warns if an async function does not use await.

// .eslintrc.json
{
  "plugins": ["async"],
  "rules": {
    "async/missing-await-in-async-fn": "error"
  }
}

// Example file: test.js
async function doSomething() {
  // This will trigger the rule because await is missing
  Promise.resolve();
}