edit-json-file

Edit a json file with ease.

Installation

$ npm i edit-json-file

Example

"use strict";

const editJsonFile = require("edit-json-file");

// If the file doesn't exist, the content will be an empty object by default.
let file = editJsonFile(`${__dirname}/foo.json`);

// Set a couple of fields
file.set("planet", "Earth");
file.set("name.first", "Johnny");
file.set("name.last", "B.");
file.set("is_student", false);

// Output the content
console.log(file.get());
// { planet: 'Earth',
//   name: { first: 'Johnny', last: 'B.' },
//   is_student: false }

// Save the data to the disk
file.save();

// Reload it from the disk
file = editJsonFile(`${__dirname}/foo.json`, {
    autosave: true
});

// Get one field
console.log(file.get("name.first"));
// => Johnny

// This will save it to disk
file.set("a.new.field.as.object", {
    hello: "world"
});

// Output the whole thing
console.log(file.toObject());
// { planet: 'Earth',
//   name: { first: 'Johnny', last: 'B.' },
//   is_student: false,
//   a: { new: { field: [Object] } } }

Documentation

JsonEditor(path, options)

Params

• String path: The path to the JSON file.
• Object options: An object containing the following fields:
• stringify_width (Number): The JSON stringify indent width (default: 2).
• stringify_fn (Function): A function used by JSON.stringify.
• stringify_eol (Boolean): Wheter to add the new line at the end of the file or not (default: false)
• autosave (Boolean): Save the file when setting some data in it.

Return

• JsonEditor The JsonEditor instance.

set(path, value)

Set a value in a specific path.

Params

• String path: The object path.
• Anything value: The value.

Return

• JsonEditor The JsonEditor instance.

get(path)

Get a value in a specific path.

Params

• String path:

Return

• Value The object path value.

unset(path)

Remove a path from a JSON object.

Params

• String path: The object path.

Return

• JsonEditor The JsonEditor instance.

read(cb)

Read the JSON file.

Params

• Function cb: An optional callback function which will turn the function into an asynchronous one.

Return

• Object The object parsed as object or an empty object by default.

read(The, cb)

write Write the JSON file.

Params

• String The: file content.
• Function cb: An optional callback function which will turn the function into an asynchronous one.

Return

• JsonEditor The JsonEditor instance.

empty(cb)

Empty the JSON file content.

Params

• Function cb: The callback function.

save(cb)

Save the file back to disk.

Params

• Function cb: An optional callback function which will turn the function into an asynchronous one.

Return

• JsonEditor The JsonEditor instance.

toObject()

Return

• Object The data object.

editJsonFile(path, options)

Edit a json file.

Params

• String path: The path to the JSON file.
• Object options: An object containing the following fields:

Return

• JsonEditor The JsonEditor instance.

How to contribute

Have an idea? Found a bug? See how to contribute.

License

See the LICENSE file.