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Wrapper for Asker module for dumping of the received data, and usage of the collected dump instead of actual http requests.

Asker's Hat

It's a wrapper for Asker module.

With asker-hat you can dump all received data to files. After dumping you can use collected data instead of doing actual HTTP requests. It can be useful for profiling your app, as it will exclude network lag or HTTP stack issues.


  1. Install asker-hat
npm install asker-hat
  1. Add to your code
  1. Switch asker-hat to collecting dump mode in one of the following ways:
  • call Asker.hat.dump() in your code
  • send SIGUSR2 signal to Node.js process
  1. Module will collect the dump in /tmp/asker-hat-<pid>-<timestamp> folder.
  2. When dumping is done, switch asker-hat to use dump mode in one of the following ways:
  • call Asker.hat.useDump()
  • send SIGUSR2 to Node.js process again
  1. To turn off dump usage:
  • call
  • send SIGUSR2 to Node.js process again :)
  1. Call Asker.hat.restore() to take off the hat.

Usage with vow-asker

Required vow-asker ≥0.2.0

  1. Install asker-hat.
  2. Add to your code
  1. Usage is the same as if you use asker directly.


Pass options hash as second argument to asker-hat:

require('asker-hat')(Asker, options);
  • {String} path = '<OS_TEMP_DIR>/asker-hat-<PID>-<TIMESTAMP>'
  • {Array} env = ['testing', 'development']
  • {Boolean} partial = false
  • {String} signal = 'SIGUSR2'
  • {Function} sanitizer (Object options)

Sanitizing of the options hash