didone

Minimalist dotenv-like parser for the browser.

Pronounced "dee-doh-neh".

This zero-dependency library is a minimalist dotenv-like parser. It intentionally does not perform validation and is simply designed to extract key-value pairs from a given string. The parse function returns an array of objects with the following properties:

• key: The key of the variable.
• value: The value of the variable. Multiline values are supported.
• duplicate: Whether the key is duplicated or not.

DB_HOST=localhost
DB_PORT="5432"
DB_USER=myuser
DB_USER=myuser2 # Duplicate keys are parsed but marked as duplicates

Output

[
  {
    "duplicate": false,
    "key": "DB_HOST",
    "value": "localhost"
  },
  {
    "duplicate": false,
    "key": "DB_PORT",
    "value": "5432"
  },
  {
    "duplicate": false,
    "key": "DB_USER",
    "value": "myuser"
  },
  {
    "duplicate": true,
    "key": "DB_USER",
    "value": "myuser2"
  }
]

If the provided text does not contain any key-value pairs, an empty array is returned.

Install

npm i didone

Usage

parse

import { parse } from "didone";

const values = parse(
  `
DB_HOST=localhost
DB_PORT="5432" # Quoted values
DB_USER=myuser
  `
);

serialize

import { serialize } from "didone";

const text = serialize([
  {
    duplicate: false,
    key: "FOO",
    value: "bar",
  },
]);

console.log(text); // "FOO=bar"

Options

Set removeDuplicates to true to remove duplicate keys.

serialize(values, {
  removeDuplicates: true,
});

Changelog

CHANGELOG.md

License

MIT