Initial code

.gitignore

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+lib-cov
+*.seed
+*.log
+*.csv
+*.dat
+*.out
+*.pid
+*.gz
+pids
+logs
+results
+npm-debug.log
+node_modules

.travis.yml

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+language: node_js
+node_js:
+  - "0.8"
+  - "0.10"

LICENSE

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+Copyright (c) 2014 Forbes Lindesay
+
+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.

README.md

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+# http-response-object
+
+A simple object to represent an http response
+
+[![Build Status](https://travis-ci.org/ForbesLindesay/http-response-object.png?branch=master)](https://travis-ci.org/ForbesLindesay/http-response-object)
+[![Dependency Status](https://gemnasium.com/ForbesLindesay/http-response-object.png)](https://gemnasium.com/ForbesLindesay/http-response-object)
+[![NPM version](https://badge.fury.io/js/http-response-object.png)](http://badge.fury.io/js/http-response-object)
+
+## Installation
+
+    npm install http-response-object
+
+## License
+
+  MIT

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
+ */
+function Response(statusCode, headers, body) {
+  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;
+}
+
+Response.prototype.getBody = function () {
+  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;
+    throw err;
+  }
+  return this.body;
+};

package.json

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+{
+  "name": "http-response-object",
+  "version": "0.0.0",
+  "description": "A simple object to represent an http response",
+  "keywords": ["http", "https", "response", "request"],
+  "scripts": {
+    "test": "node test"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/ForbesLindesay/http-response-object.git"
+  },
+  "author": "ForbesLindesay",
+  "license": "MIT"
+}

test/index.js

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+'use strict';
+
+var assert = require('assert');
+var Response = require('../');
+
+var res = new Response(200, {
+  'Foo-Bar': 'baz-Bosh',
+  'bar-foo': 'bish-Bosh'
+}, 'foo bar baz');
+assert(res.statusCode = 200);
+assert(res.headers['foo-bar'] === 'baz-Bosh');
+assert(res.headers['bar-foo'] === 'bish-Bosh');
+assert(res.body === 'foo bar baz');
+assert(res.getBody() === 'foo bar baz');
+
+res = new Response(404, {
+  'Foo-Bar': 'baz-Bosh'
+}, 'Could not find page');
+assert(res.statusCode = 404);
+assert(res.headers['foo-bar'] === 'baz-Bosh');
+assert(res.body === 'Could not find page');
+var errored = false;
+try {
+  res.getBody();
+} catch (ex) {
+  assert(ex.statusCode === 404);
+  assert(ex.headers['foo-bar'] === 'baz-Bosh');
+  assert(res.body === 'Could not find page');
+  errored = true;
+}
+if (!errored) {
+  throw new Error('res.getBody() should throw an error when the status code is 404');
+}
+console.log('tests passed');