read-package-json-fast

What is read-package-json-fast?

The read-package-json-fast npm package is designed to quickly read and parse package.json files in a Node.js environment. It is optimized for performance and provides a simple API for accessing package metadata.

What are read-package-json-fast's main functionalities?

Read and parse package.json

This feature allows you to read and parse the contents of a package.json file asynchronously. The function returns a promise that resolves with the parsed package data.

const readPackageJsonFast = require('read-package-json-fast');

async function getPackageData() {
  try {
    const packageData = await readPackageJsonFast('path/to/package.json');
    console.log(packageData);
  } catch (error) {
    console.error('Error reading package.json:', error);
  }
}

getPackageData();

Other packages similar to read-package-json-fast

read-package-json

This package is similar to read-package-json-fast but is not as performance-optimized. It provides more features, such as handling various edge cases and running scripts defined in the package.json file.

normalize-package-data

While not a direct alternative, this package can be used in conjunction with others to normalize the data from a package.json file. It doesn't read the file itself but can be used after reading the file to ensure the package data adheres to the npm package specification.

pkg-conf

pkg-conf is a package that reads and parses configuration from package.json files. It is focused on the configuration aspect and allows you to easily retrieve nested configuration values.

README

read-package-json-fast

Like read-package-json, but faster and more accepting of "missing" data.

This is only suitable for reading package.json files in a node_modules tree, since it doesn't do the various cleanups, normalization, and warnings that are beneficial at the root level in a package being published.

USAGE

const rpj = require('read-package-json-fast')

// typical promisey type API
rpj('/path/to/package.json')
  .then(data => ...)
  .catch(er => ...)

// or just normalize a package manifest
const normalized = rpj.normalize(packageJsonObject)

Errors raised from parsing will use json-parse-even-better-errors, so they'll be of type JSONParseError and have a code: 'EJSONPARSE' property. Errors will also always have a path member referring to the path originally passed into the function.

WHAT THIS MODULE DOES

• Parse JSON
• Normalize bundledDependencies/bundleDependencies naming to just bundleDependencies (without the extra d)
• Handle true, false, or object values passed to bundleDependencies
• Normalize funding: <string> to funding: { url: <string> }
• Remove any scripts members that are not a string value.
• Normalize a string bin member to { [name]: bin }.
• Fold optionalDependencies into dependencies.
• Set the _id property if name and version are set. (This is load-bearing in a few places within the npm CLI.)

WHAT THIS MODULE DOES NOT DO

• Warn about invalid/missing name, version, repository, etc.
• Extract a description from the README.md file, or attach the readme to the parsed data object.
• Read the HEAD value out of the .git folder.
• Warn about potentially typo'ed scripts (eg, tset instead of test)
• Check to make sure that all the files in the files field exist and are valid files.
• Fix bundleDependencies that are not listed in dependencies.
• Fix dependencies fields that are not strictly objects of string values.
• Anything involving the directories field (ie, bins, mans, and so on).