node_modules/http-response-object/index.js


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'use strict';

module.exports = Response;

/**
 * A response from a web request
 *
 * @param {Number} statusCode
 * @param {Object} headers
 * @param {Buffer} body
 * @param {String} url
 */
function Response(statusCode, headers, body, url) {
  if (typeof statusCode !== 'number') {
    throw new TypeError('statusCode must be a number but was ' + (typeof statusCode));
  }
  if (headers === null) {
    throw new TypeError('headers cannot be null');
  }
  if (typeof headers !== 'object') {
    throw new TypeError('headers must be an object but was ' + (typeof headers));
  }
  this.statusCode = statusCode;
  this.headers = {};
  for (var key in headers) {
    this.headers[key.toLowerCase()] = headers[key];
  }
  this.body = body;
  this.url = url;
}

Response.prototype.getBody = function (encoding) {
  if (this.statusCode >= 300) {
    var err = new Error('Server responded with status code '
                    + this.statusCode + ':\n' + this.body.toString());
    err.statusCode = this.statusCode;
    err.headers = this.headers;
    err.body = this.body;
    err.url = this.url;
    throw err;
  }
  return encoding ? this.body.toString(encoding) : this.body;
};