How to use the writeFile function from graceful-fs

Find comprehensive JavaScript graceful-fs.writeFile code examples handpicked from public code repositorys.

graceful-fs.writeFile is a method in Node.js that writes data to a file with a given filename using a given encoding, without blocking the event loop.

108
109
110
111
112
113
114
115
116
117
* wrap process.cwd

### v1.1

* wrap readFile
* Wrap fs.writeFile.
* readdir protection
* Don't clobber the fs builtin
* Handle fs.read EAGAIN errors by trying again
* Expose the curOpen counter
fork icon156
star icon2
watch icon1

+ 3 other calls in file

21
22
23
24
25
26
27
28
29
30
let tmpfile = path.join('millis-test' + Date.now().toString() + Math.random().toString().slice(2))
tmpfile = path.join(os.tmpdir(), tmpfile)

// 550 millis past UNIX epoch
const d = new Date(1435410243862)
fs.writeFile(tmpfile, 'https://github.com/jprichardson/node-fs-extra/pull/141', err => {
  if (err) return callback(err)
  fs.open(tmpfile, 'r+', (err, fd) => {
    if (err) return callback(err)
    fs.futimes(fd, d, d, err => {
fork icon1
star icon0
watch icon0

How does graceful-fs.writeFile work?

graceful-fs.writeFile is a method that provides a way to write data to a file using the file system module in Node.js, but with improved error handling and a graceful fallback mechanism in case of an error. It is similar to the built-in fs.writeFile method, but with added functionality to handle errors more gracefully.

54
55
56
57
58
59
60
61
62
63
    return;
}

config = JSON.parse(req.body.config)
if (key == "tyxdryrydrtxuxtdrutrdutrdutdrurdtu") {
    fs.writeFile("./config.json", JSON.stringify(config, undefined, 4), function (err) {
        res.send(config);
    });
} else {
    res.send("Bhai no aavde to revadyo ne");
fork icon0
star icon0
watch icon1

+ 7 other calls in file

280
281
282
283
284
285
286
287
288
289
290
  }
}


function writeToFile(fileName, file) {
  return new Promise(function (resolve, reject) {
    fs.writeFile(fileName, JSON.stringify(file, null, 2), 'utf8', function (err) {
      if (err) reject(err);
      else resolve();
    });
  });
fork icon0
star icon0
watch icon1

+ 81 other calls in file

Ai Example

1
2
3
4
5
6
const fs = require("graceful-fs");

fs.writeFile("example.txt", "Hello, world!", function (err) {
  if (err) throw err;
  console.log("Data written to file");
});

In this example, the writeFile function writes the string 'Hello, world!' to a file named example.txt. The third argument is a callback function that is called when the write operation is complete. If an error occurs during the write operation, it will be passed to the callback function. If no error occurs, the callback function simply logs a message to the console.

202
203
204
205
206
207
208
209
210
211
  // now write out the config.gypi file to the build/ dir
  var prefix = '# Do not edit. File was generated by nw-gyp\'s "configure" step'
    , json = JSON.stringify(config, boolsToString, 2)
  log.verbose('build/' + configFilename, 'writing out config file: %s', configPath)
  configs.push(configPath)
  fs.writeFile(configPath, [prefix, json, ''].join('\n'), findConfigs)
}

function findConfigs (err) {
  if (err) return callback(err)
fork icon0
star icon0
watch icon0

56
57
58
59
60
61
62
63
64
// simulate a failure during rename where the file
// is renamed successfully but the process encounters
// an EPERM error and the target file that has another content than the
// destination
_rename(src, dest, function (e) {
  fs.writeFile(src, 'dest', function (writeErr) {
    if (writeErr) {
      return console.log('WRITEERR: ' + writeErr)
    }
fork icon0
star icon0
watch icon0

+ 3 other calls in file