json2yaml

A Deno module that converts a JSON string to a (pretty) YAML string 🦕

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Inspired by https://github.com/alexcrist/json-to-pretty-yaml

Note: there already exists a module (stringify()) to convert JavaScript objects to YAML strings in the Deno standard library. Consider using this instead if you prefer working with JavaScript objects!

Module

Basic usage:

import { json2yaml } from 'https://deno.land/x/json2yaml/mod.ts';

const jsonString = '{"hello": "world"}';
const yamlString = json2yaml(jsonString);

console.log(yamlString);

Output:

hello: world

You can also specify the number of spaces to use for indents:

const jsonString = '{"foo": ["bar", "baz"]}';
const yamlString = json2yaml(jsonString, 3);

console.log(yamlString);

Output:

foo:
   -  bar
   -  baz

For more documentation, run:

$ deno doc mod.ts

CLI

# Prints output to stdout
$ deno run --allow-read https://deno.land/x/json2yaml/cli.ts -- input.json

# Write contents into output.yaml
$ deno run --allow-read https://deno.land/x/json2yaml/cli.ts -- input.json > output.yaml

Testing

$ deno test --allow-read