Two comments:

1. Why is this re-requiring `request`? Would not the following achieve the same result?
```
exports.setProxy = function(proxyAddress) {
  request.defaults({
    proxy : proxyAddress,
    agent : false
  });
};
```
2. Please follow the code style of the rest of the file. Namely two space tabs, some breathing room around the keys and values of the defaults arguments object, semi-colon’s after anonymous functions.