A node http client that adds things like retry behavior

HTTPClient.js

var request = require('request')
  , retry = require('retry')
  , httpLog = log4js.getLogger('httpLog');

var HTTPClient = {
  defaultOpts: {
    , request: {
      headers: {
        Host: 'paddie'
        , 'Content-Type': 'application/javascript'
      }
    }
    , retry: {
      retries: 2 
      , factor: 10 // backoff by factors of 10
      , minTimeout: 100 // wait at least 100 ms between retries
      , maxTimeout: 500 // max time between retries
      , randomize: false // don't randomize times
    }
  }
  , request: function(opts, callback) {
    var op = retry.operation(defaultOpts.retry);

    opts = merge({}, defaultOpts.request, opts);

    op.attempt(function(tries) {
      if(tries > 1) {
        runtimeLog.debug('... retrying');
      }

      request(opts, function(err, res, data) {
        var status = res ? res.statusCode : 0;

        httpLog.info('CLIENT_REQUEST ' + opts.url + ' ' + status );
        // done retrying
        if(!err && status >= 200 && status < 300) {
          runtimeLog.info('Activated ' + pad.id);
          return callback(null, true);
        } else {
          // maybe retry
          var expectRetry = err ||
              new Error('request failed: ' + status);
          if(op.retry(expectRetry)) { return; }

          err = op.mainError();

          return callback(err, false);
        }
      });
    });
  }
  , get: function(opts, callback) {
    opts.method = 'GET';
    return this.request(opts, callback);
  }
  , post: function(opts, callback) {
    opts.method = 'POST':
    return this.request(opts, callback);
  }
}

module.exports = HTTPClient;