yml-loader

library2.1.0jsnpmunverified

YAML loader for webpack that imports .yml files as JSON objects. Version 2.1.0 is the latest stable release. This loader supports multiple documents via the `multiDocument` option and key blacklisting via `keysToRemove` to exclude sensitive keys from output. It is commonly used in webpack configurations to load YAML configuration files. The package is unmaintained since 2019 and relies on `js-yaml` for parsing. Alternatives like `yaml-loader` offer more active maintenance and broader compatibility with webpack 4+.

serialization devops

npm install yml-loader

github ↗package ↗

INSTALL

IMPORT

SIG · YML-LOADER

yml-loader

serializationjavascriptv2.1.0

Install

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Import

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Disk

—

Pass rate

0/ 6

Env Coverage0 / 6

glibc

18–22

musl

18–22

Install & Compatibility

Where this runs

tested against v? · npm install

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

node 18–223 runs

build_error

glibc

node 18–223 runs

build_error

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

yml-loader

✓ import yml from 'yml-loader'

✗ const yml = require('yml-loader')

Loader is used in webpack config, not in application code. Import syntax shown is illustrative; actual usage is via webpack loader string.

webpack config

✓ module.exports = { module: { rules: [ { test: /\.yml$/, use: 'yml-loader' } ] } }

✗ module.exports = { module: { loaders: [ { test: /\.yml$/, loader: 'yml' } ] } }

Webpack 1 uses `loaders` with `loader`; webpack 2+ uses `rules` with `use`. This package documentation still shows webpack 1 style.

Shows how to configure webpack to load YAML files using yml-loader with key removal option.

// In webpack config module.exports = { module: { rules: [ { test: /\.ya?ml$/, use: [ { loader: 'yml-loader', options: { keysToRemove: ['private_key'] } } ] } ] } }; // Then in your code import config from './config.yml'; console.log(config); // outputs parsed YAML as JS object

Debug

Known issues

breakingWebpack 1 loader syntax is incompatible with webpack 2+. Use `rules` and `use` instead of `loaders` and `loader`.

fix

Use `module.rules` array with `use` property for webpack 2+.

affects: >=0.0.0 <2.0.0

deprecatedPackage is unmaintained since 2019; no updates for webpack 5 compatibility.

fix

Consider migrating to `yaml-loader` (npm: yaml-loader) which is actively maintained.

affects: >=0.0.0

Errors

Common errors & fixes

Module not found: Error: Can't resolve 'yml-loader'

Loader not installed or not in node_modules.

fix

Install with `npm install --save-dev yml-loader`.

Module build failed: Error: Cannot find module 'js-yaml'

Missing peer dependency `js-yaml`.

fix

Install `js-yaml` with `npm install --save-dev js-yaml`.

Upgrade

Version history

2.1.0latest on npm

Audit

Dependencies

js-yamlrequiredCore YAML parsing dependency. Used to load and parse YAML files.

webpackoptionalPeer dependency; loader is designed for webpack bundler.

Agent activity

30 hits · last 30 days

node

OpenAI (training)

Resources

githubhttps://github.com/nkt/yml-loader ↗

packagehttps://www.npmjs.com/package/yml-loader ↗