1.0.1 • Public • Published


Store cookies in Netscape-compatible (curl, wget, etc) format text files.


  • [x] Compatible with tough cookie@4.x.
  • [x] Netscape cookie file format, compatible with curl, wget, etc
  • [x] Parallel access to the cookies file (using lockfile library)


npm install --save tough-cookie@4
npm install --save @root/file-cookie-store@1
let Cookie = require('tough-cookie');
var FileCookieStore = require('@root/file-cookie-store');

// Initialize
var cookies_store = new FileCookieStore('./cookie.txt', {
    auto_sync: false,
    lockfile: true
let jar = new Cookie.CookieJar(cookies_store);

// Promisify for async functions
jar.setCookieAsync = require('util').promisify(jar.setCookie);
jar.getCookiesAsync = require('util').promisify(jar.getCookies);
cookies_store.saveAsync = require('util').promisify(cookies_store.save);


Class FileCookieStore has different properties:

  • forceparse - continue parse file and don't throw exception if bad line was found ( Default : _false)
  • lockfile - use lockfile for access to the cookies file ( Default : true)
  • mode - mode of new created file ( Default : 438 aka 0666 in Octal)
  • httponly_extension - use http_only extension - prefix #HttpOnly for http only cookies. Curl, FF, etc use this kind of entries ( Default : true)
  • lockfileretries - attempts for lock file before throw exception ( Default : _200)
  • autosync - in this mode cookies rewrote to the file after every change. If you set auto_sync to the _false, you have to call method 'save' manually ( Default : true).

Example of using FileCookieStore without auto_sync mode:

var Q = require('q');
var FileCookieStore = require('@root/file-cookie-store');
var TOUGH = require("tough-cookie");

var cookies_store = new FileCookieStore("./cookie.txt", {auto_sync : false});
var jar = new TOUGH.CookieJar(cookies_store);

Q.nbind(jar.setCookie, jar)(new new TOUGH.Cookie({...}), 'http://test.com/')
.then(function () {
          return Q.nbind(jar.setCookie, jar)(new TOUGH.Cookie({...}), 'http://test.com/')
}).then(function () {
          return Q.nbind(cookies_store.save, cookies_store)();//save changes to the file

Export cookies

For receive all cookies from the store might be used method export:

cookie_store.export(function (cookies) {
    //array cookies

cookie_store.export(new MemoryCookieStore(), function (memory_cookie_store) {

Store file format

Cookies stored in Netscape's cookie.txt file. This allow import/export cookies into/from different browsers. And use with command-line network tools: curl, wget, etc.

The layout of Netscape's cookies.txt file is such that each line contains one name-value pair. An example cookies.txt file may have an entry that looks like this:

.netscape.com TRUE / FALSE 946684799 NETSCAPE_ID 100103

Each line represents a single piece of stored information. A tab is inserted between each of the fields.

From left-to-right, here is what each field represents:

  • domain - The domain that created AND that can read the variable.
  • flag - A TRUE/FALSE value indicating if all machines within a given domain can access the variable. This value is set automatically by the browser, depending on the value you set for domain.
  • path - The path within the domain that the variable is valid for.
  • secure - A TRUE/FALSE value indicating if a secure connection with the domain is needed to access the variable.
  • expiration - The UNIX time that the variable will expire on. UNIX time is defined as the number of seconds since Jan 1, 1970 00:00:00 GMT.
  • name - The name of the variable.
  • value - The value of the variable.

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npm i @root/file-cookie-store

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