Fixture downloader

Getafix is a program which will automatically create and update your fixture data. Configuration is easy, since all you need to do is recreate the API's url structure locally.

Perhaps it's easier to show rather than tell...

  1. Create a folder to hold your fixtures. Let's call it 'fixtures'.

     [ app/ ] $ mkdir fixtures && cd fixtures
  2. Start recreating the API structure by creating folders and files to represent endpoints. Each endpoint should be a file with a ".json" extension. Leave them as empty files.

     [ app/fixtures/ ] $ mkdir users
     [ app/fixtures/ ] $ touch users/2.json
     [ app/fixtures/ ] $ mkdir users/2
     [ app/fixtures/ ] $ touch users/2/tracks.json
  3. Configure the base so that Getafix knows where to request the data from. Configuration is done with files named ".getafix".

     app/fixtures/ $ echo "base: ''" > .getafix
  4. Run getafix, pointing it to your fixtures directory:

     app/ $ getafix fixtures

In this example, getafix would make requests to:


And save the results back into the JSON files. Adding more fixtures is just a case of creating more empty files.

Configuration files are interpretted as CoffeeScript.

  • base (String) All files beyond this point use this value as a base for the url to request. Folder structure up to this point is ignored.
  • headers (Object) A map of headers to include in the request.
  • query (Object) A map of query parameters to include. Useful if you need to always include a client id or similar in every request.
  • map (Function) A function which allows for a custom method of building the url from the folder structure. It is passed one variable: path and should return a string which is appended to the base.

To create different configs for certain endpoints, add extra .getafix configuration files in the appropriate folder. When more than one config lies in the path to an endpoint, the values are merged together.

        # base: ''
        # query: client: 123
        2.json             # requests:
            tracks.json    # requests:
            # map: (path) -> '/resolve?' + path
        foo.json           # requests:
            baz.json       # requests:
            # base: ''
            2.json         # requests:


Nick Fisher (@spadgos), SoundCloud (@soundcloud)