configurify

A browserify transform to evaluate dynamic expressions on the server and expose them as static snapshot.

When to use

Consider using configurify when you would otherwise use envify but don't want to define individual environment variables for every single config option.

With configurify you can instead use one single var to decide which set of config options to load. Where exactly the actual data comes from (a file, a database, remote service) doesn't matter.

How it works

Lets say you have a conf module that exposes a different set of config options depending on its environement:

var profile = process.env.NODE_CONF || 'default';

// Note the dynamic require expression:
module.exports = require('./' + profile);

The configurify transform will require (and therefore execute) the module on the server and serialize the exported object using JSON.stringify().

The browserify bundle will then contain that serialized object rather than your original code.

Whether the transform is applied to a certain module depends on the module's file name. By default all files that match the **/conf/* glob pattern will be transformed.

Usage

The easiest way to use (and optionally configure) the transform is to add it to your project's package.json:

{
  "browserify": {
    "transform": [
      ["configurify", { "pattern": "**/conf/*" } ]
    ]
  }
}

Async Example

Your module may also obtain its configuration asynchronously. Simply export a function that takes a node-style callback as argument:

var request = require('request');

module.exports = function(cb) {
  request.get('http://localhost:8080/config.json', function(err, res, body) {
    if (err) return cb(err);
    cb(null, JSON.parse(body));
  });
}

The MIT License (MIT)

Copyright (c) 2014 Felix Gnass

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.