84 lines
1.7 KiB
Markdown
84 lines
1.7 KiB
Markdown
# write-json-file [](https://travis-ci.org/sindresorhus/write-json-file)
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> Stringify and write JSON to a file [atomically](https://github.com/npm/write-file-atomic)
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Creates directories for you as needed.
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## Install
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```
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$ npm install write-json-file
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```
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## Usage
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```js
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const writeJsonFile = require('write-json-file');
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writeJsonFile('foo.json', {foo: true}).then(() => {
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console.log('done');
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});
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```
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## API
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### writeJsonFile(filepath, data, [options])
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Returns a `Promise`.
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### writeJsonFile.sync(filepath, data, [options])
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#### options
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Type: `Object`
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##### indent
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Type: `string` `number`<br>
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Default: `'\t'`
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Indentation as a string or number of spaces.<br>
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Pass in `null` for no formatting.
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##### detectIndent
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Type: `boolean`<br>
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Default: `false`
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Detect indentation automatically if the file exists.
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##### sortKeys
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Type: `boolean` `function`<br>
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Default: `false`
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Sort the keys recursively.<br>
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Optionally pass in a [`compare`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/sort) function.
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##### replacer
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Type: `function`
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Passed into [`JSON.stringify`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#The_replacer_parameter).
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##### mode
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Type: `number`<br>
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Default: `0o666`
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[Mode](https://en.wikipedia.org/wiki/File_system_permissions#Numeric_notation) used when writing the file.
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## Related
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- [load-json-file](https://github.com/sindresorhus/load-json-file) - Read and parse a JSON file
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- [make-dir](https://github.com/sindresorhus/make-dir) - Make a directory and its parents if needed
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## License
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MIT © [Sindre Sorhus](https://sindresorhus.com)
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