diff --git a/.editorconfig b/.editorconfig index bd901785..052e5ee7 100644 --- a/.editorconfig +++ b/.editorconfig @@ -9,5 +9,9 @@ indent_style = space insert_final_newline = true trim_trailing_whitespace = true -[*.{js,rb}] -indent_size=2 +[*.{js,rb,css,html}] +indent_size = 2 + +[*.go] +indent_size = 8 +indent_style = tab diff --git a/LICENSE b/LICENSE new file mode 100644 index 00000000..87f537d4 --- /dev/null +++ b/LICENSE @@ -0,0 +1,9 @@ +The examples provided by Facebook are for non-commercial testing and evaluation +purposes only. Facebook reserves all rights not expressly granted. + +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 +FACEBOOK 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. diff --git a/README.md b/README.md index 7a6e518a..4862f5df 100644 --- a/README.md +++ b/README.md @@ -1,10 +1,12 @@ +[![Deploy](https://www.herokucdn.com/deploy/button.png)](https://heroku.com/deploy) + # React Tutorial This is the React comment box example from [the React tutorial](http://facebook.github.io/react/docs/tutorial.html). ## To use -There are several simple server implementations included. They all serve static files from `public/` and handle requests to `comments.json` to fetch or add data. Start a server with one of the following: +There are several simple server implementations included. They all serve static files from `public/` and handle requests to `/api/comments` to fetch or add data. Start a server with one of the following: ### Node @@ -35,4 +37,19 @@ php server.php go run server.go ``` +### Perl + +```sh +cpan Mojolicious +perl server.pl +``` + And visit . Try opening multiple tabs! + +## Changing the port + +You can change the port number by setting the `$PORT` environment variable before invoking any of the scripts above, e.g., + +```sh +PORT=3001 node server.js +``` diff --git a/_comments.json b/_comments.json deleted file mode 100644 index 32938452..00000000 --- a/_comments.json +++ /dev/null @@ -1,6 +0,0 @@ -[ - { - "author": "Pete Hunt", - "text": "Hey there!" - } -] diff --git a/app.json b/app.json new file mode 100644 index 00000000..aa3e6afd --- /dev/null +++ b/app.json @@ -0,0 +1,13 @@ +{ + "name": "React Tutorial Server", + "description": "Code from the React tutorial", + "keywords": [ "react", "reactjs", "tutorial" ], + "repository": "https://github.com/reactjs/react-tutorial", + "logo": "https://facebook.github.io/react/img/logo.svg", + "website": "http://facebook.github.io/react/docs/tutorial.html", + "success_url": "/", + "env" : { + "BUILDPACK_URL": "https://github.com/heroku/heroku-buildpack-nodejs.git" + } +} + diff --git a/comments.json b/comments.json new file mode 100644 index 00000000..28816136 --- /dev/null +++ b/comments.json @@ -0,0 +1,27 @@ +[ + { + "id": 1388534400000, + "author": "Pete Hunt", + "text": "Hey there!" + }, + { + "id": 1420070400000, + "author": "Paul O’Shannessy", + "text": "React is *great*!" + }, + { + "id": 1464988635157, + "author": "ben", + "text": "*abc*" + }, + { + "id": 1464988636500, + "author": "ben", + "text": "*abc*" + }, + { + "id": 1464988717637, + "author": "evil", + "text": "alert(1)" + } +] \ No newline at end of file diff --git a/package.json b/package.json index b92ebf6b..bf3360a0 100644 --- a/package.json +++ b/package.json @@ -1,6 +1,8 @@ { "name": "react-tutorial", "version": "0.0.0", + "private": true, + "license": "see LICENSE file", "description": "Code from the React tutorial.", "main": "server.js", "dependencies": { @@ -26,5 +28,8 @@ "bugs": { "url": "https://github.com/reactjs/react-tutorial/issues" }, - "homepage": "https://github.com/reactjs/react-tutorial" + "homepage": "https://github.com/reactjs/react-tutorial", + "engines" : { + "node" : "0.12.x" + } } diff --git a/public/css/base.css b/public/css/base.css index bf382be3..c8cc35f7 100644 --- a/public/css/base.css +++ b/public/css/base.css @@ -23,7 +23,7 @@ code { font-family: "Bitstream Vera Sans Mono", Consolas, Courier, monospace; font-size: 12px; margin: 0 2px; - padding: 0px 5px; + padding: 0 5px; } h1, h2, h3, h4 { @@ -35,9 +35,6 @@ h1, h2, h3, h4 { h1 { border-bottom: 1px solid #ddd; font-size: 2.5em; - font-weight: bold; - margin: 0 0 15px; - padding: 0; } h2 { diff --git a/public/index.html b/public/index.html index 0edd2ac5..eb201204 100644 --- a/public/index.html +++ b/public/index.html @@ -1,16 +1,22 @@ - Codestin Search App + + Codestin Search App - - - - + + + + +
- + + diff --git a/public/scripts/example.js b/public/scripts/example.js index c912e497..6493fea9 100644 --- a/public/scripts/example.js +++ b/public/scripts/example.js @@ -1,6 +1,6 @@ /** - * This file provided by Facebook is for non-commercial testing and evaluation purposes only. - * Facebook reserves all rights not expressly granted. + * This file provided by Facebook is for non-commercial testing and evaluation + * purposes only. Facebook reserves all rights not expressly granted. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, @@ -10,17 +10,20 @@ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ -var converter = new Showdown.converter(); - var Comment = React.createClass({ + rawMarkup: function() { + var md = new Remarkable(); + var rawMarkup = md.render(this.props.children.toString()); + return { __html: rawMarkup }; + }, + render: function() { - var rawMarkup = converter.makeHtml(this.props.children.toString()); return (

{this.props.author}

- +
); } @@ -31,6 +34,7 @@ var CommentBox = React.createClass({ $.ajax({ url: this.props.url, dataType: 'json', + cache: false, success: function(data) { this.setState({data: data}); }.bind(this), @@ -41,23 +45,24 @@ var CommentBox = React.createClass({ }, handleCommentSubmit: function(comment) { var comments = this.state.data; - comments.push(comment); - this.setState({data: comments}, function() { - // `setState` accepts a callback. To avoid (improbable) race condition, - // `we'll send the ajax request right after we optimistically set the new - // `state. - $.ajax({ - url: this.props.url, - dataType: 'json', - type: 'POST', - data: comment, - success: function(data) { - this.setState({data: data}); - }.bind(this), - error: function(xhr, status, err) { - console.error(this.props.url, status, err.toString()); - }.bind(this) - }); + // Optimistically set an id on the new comment. It will be replaced by an + // id generated by the server. In a production application you would likely + // not use Date.now() for this and would have a more robust system in place. + comment.id = Date.now(); + var newComments = comments.concat([comment]); + this.setState({data: newComments}); + $.ajax({ + url: this.props.url, + dataType: 'json', + type: 'POST', + data: comment, + success: function(data) { + this.setState({data: data}); + }.bind(this), + error: function(xhr, status, err) { + this.setState({data: comments}); + console.error(this.props.url, status, err.toString()); + }.bind(this) }); }, getInitialState: function() { @@ -80,12 +85,9 @@ var CommentBox = React.createClass({ var CommentList = React.createClass({ render: function() { - var commentNodes = this.props.data.map(function(comment, index) { + var commentNodes = this.props.data.map(function(comment) { return ( - // `key` is a React-specific concept and is not mandatory for the - // purpose of this tutorial. if you're curious, see more here: - // http://facebook.github.io/react/docs/multiple-components.html#dynamic-children - + {comment.text} ); @@ -99,29 +101,47 @@ var CommentList = React.createClass({ }); var CommentForm = React.createClass({ + getInitialState: function() { + return {author: '', text: ''}; + }, + handleAuthorChange: function(e) { + this.setState({author: e.target.value}); + }, + handleTextChange: function(e) { + this.setState({text: e.target.value}); + }, handleSubmit: function(e) { e.preventDefault(); - var author = this.refs.author.getDOMNode().value.trim(); - var text = this.refs.text.getDOMNode().value.trim(); + var author = this.state.author.trim(); + var text = this.state.text.trim(); if (!text || !author) { return; } this.props.onCommentSubmit({author: author, text: text}); - this.refs.author.getDOMNode().value = ''; - this.refs.text.getDOMNode().value = ''; + this.setState({author: '', text: ''}); }, render: function() { return (
- - + +
); } }); -React.render( - , +ReactDOM.render( + , document.getElementById('content') ); diff --git a/server.go b/server.go index c8797f6b..934a4cfc 100644 --- a/server.go +++ b/server.go @@ -1,21 +1,37 @@ +/** + * This file provided by Facebook is for non-commercial testing and evaluation + * purposes only. Facebook reserves all rights not expressly granted. + * + * 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 + * FACEBOOK 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. + */ + package main import ( + "bytes" "encoding/json" "fmt" "io" + "io/ioutil" "log" "net/http" "os" "sync" + "time" ) type comment struct { + ID int64 `json:"id"` Author string `json:"author"` Text string `json:"text"` } -const dataFile = "./_comments.json" +const dataFile = "./comments.json" var commentMutex = new(sync.Mutex) @@ -26,51 +42,57 @@ func handleComments(w http.ResponseWriter, r *http.Request) { commentMutex.Lock() defer commentMutex.Unlock() - // Stat the file, so we can find it's current permissions + // Stat the file, so we can find its current permissions fi, err := os.Stat(dataFile) if err != nil { - http.Error(w, fmt.Sprintf("Unable to stat data file (%s): %s", dataFile, err), http.StatusInternalServerError) + http.Error(w, fmt.Sprintf("Unable to stat the data file (%s): %s", dataFile, err), http.StatusInternalServerError) return } - // Open the file Read/Write - cFile, err := os.OpenFile(dataFile, os.O_RDWR, fi.Mode()) + // Read the comments from the file. + commentData, err := ioutil.ReadFile(dataFile) if err != nil { - http.Error(w, fmt.Sprintf("Unable to open data file (%s): %s", dataFile, err), http.StatusInternalServerError) + http.Error(w, fmt.Sprintf("Unable to read the data file (%s): %s", dataFile, err), http.StatusInternalServerError) return } - defer cFile.Close() //Ensure the file is closed when we are done. switch r.Method { case "POST": // Decode the JSON data - comments := make([]comment, 0) - commentsDecoder := json.NewDecoder(cFile) - if err := commentsDecoder.Decode(&comments); err != nil { - http.Error(w, fmt.Sprintf("Unable to read comments from data file (%s): %s", dataFile, err), http.StatusInternalServerError) + var comments []comment + if err := json.Unmarshal(commentData, &comments); err != nil { + http.Error(w, fmt.Sprintf("Unable to Unmarshal comments from data file (%s): %s", dataFile, err), http.StatusInternalServerError) return } // Add a new comment to the in memory slice of comments - comments = append(comments, comment{Author: r.FormValue("author"), Text: r.FormValue("text")}) + comments = append(comments, comment{ID: time.Now().UnixNano() / 1000000, Author: r.FormValue("author"), Text: r.FormValue("text")}) - // Truncate the file and Seek to the beginning of it - if err := cFile.Truncate(0); err != nil { - http.Error(w, fmt.Sprintf("Unable to truncate data file (%s): %s", dataFile, err), http.StatusInternalServerError) + // Marshal the comments to indented json. + commentData, err = json.MarshalIndent(comments, "", " ") + if err != nil { + http.Error(w, fmt.Sprintf("Unable to marshal comments to json: %s", err), http.StatusInternalServerError) return } - if r, err := cFile.Seek(0, 0); r != 0 && err != nil { - http.Error(w, fmt.Sprintf("Unable to seek to beginning of data file (%s): %s", dataFile, err), http.StatusInternalServerError) + + // Write out the comments to the file, preserving permissions + err := ioutil.WriteFile(dataFile, commentData, fi.Mode()) + if err != nil { + http.Error(w, fmt.Sprintf("Unable to write comments to data file (%s): %s", dataFile, err), http.StatusInternalServerError) return } - // Write out the json response - commentsEncoder := json.NewEncoder(cFile) - commentsEncoder.Encode(comments) + w.Header().Set("Content-Type", "application/json") + w.Header().Set("Cache-Control", "no-cache") + w.Header().Set("Access-Control-Allow-Origin", "*") + io.Copy(w, bytes.NewReader(commentData)) case "GET": + w.Header().Set("Content-Type", "application/json") + w.Header().Set("Cache-Control", "no-cache") + w.Header().Set("Access-Control-Allow-Origin", "*") // stream the contents of the file to the response - io.Copy(w, cFile) + io.Copy(w, bytes.NewReader(commentData)) default: // Don't know the method, so error @@ -79,7 +101,12 @@ func handleComments(w http.ResponseWriter, r *http.Request) { } func main() { - http.HandleFunc("/comments.json", handleComments) + port := os.Getenv("PORT") + if port == "" { + port = "3000" + } + http.HandleFunc("/api/comments", handleComments) http.Handle("/", http.FileServer(http.Dir("./public"))) - log.Fatal(http.ListenAndServe(":3000", nil)) + log.Println("Server started: http://localhost:" + port) + log.Fatal(http.ListenAndServe(":"+port, nil)) } diff --git a/server.js b/server.js index 1f7a7f92..b5a7218a 100644 --- a/server.js +++ b/server.js @@ -1,6 +1,6 @@ /** - * This file provided by Facebook is for non-commercial testing and evaluation purposes only. - * Facebook reserves all rights not expressly granted. + * This file provided by Facebook is for non-commercial testing and evaluation + * purposes only. Facebook reserves all rights not expressly granted. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, @@ -16,28 +16,62 @@ var express = require('express'); var bodyParser = require('body-parser'); var app = express(); +var COMMENTS_FILE = path.join(__dirname, 'comments.json'); + +app.set('port', (process.env.PORT || 3000)); + app.use('/', express.static(path.join(__dirname, 'public'))); app.use(bodyParser.json()); app.use(bodyParser.urlencoded({extended: true})); -app.get('/comments.json', function(req, res) { - fs.readFile('_comments.json', function(err, data) { - res.setHeader('Content-Type', 'application/json'); - res.send(data); +// Additional middleware which will set headers that we need on each request. +app.use(function(req, res, next) { + // Set permissive CORS header - this allows this server to be used only as + // an API server in conjunction with something like webpack-dev-server. + res.setHeader('Access-Control-Allow-Origin', '*'); + + // Disable caching so we'll always get the latest comments. + res.setHeader('Cache-Control', 'no-cache'); + next(); +}); + +app.get('/api/comments', function(req, res) { + fs.readFile(COMMENTS_FILE, function(err, data) { + if (err) { + console.error(err); + process.exit(1); + } + res.json(JSON.parse(data)); }); }); -app.post('/comments.json', function(req, res) { - fs.readFile('_comments.json', function(err, data) { +app.post('/api/comments', function(req, res) { + fs.readFile(COMMENTS_FILE, function(err, data) { + if (err) { + console.error(err); + process.exit(1); + } var comments = JSON.parse(data); - comments.push(req.body); - fs.writeFile('_comments.json', JSON.stringify(comments, null, 4), function(err) { - res.setHeader('Content-Type', 'application/json'); - res.send(JSON.stringify(comments)); + // NOTE: In a real implementation, we would likely rely on a database or + // some other approach (e.g. UUIDs) to ensure a globally unique id. We'll + // treat Date.now() as unique-enough for our purposes. + var newComment = { + id: Date.now(), + author: req.body.author, + text: req.body.text, + }; + comments.push(newComment); + fs.writeFile(COMMENTS_FILE, JSON.stringify(comments, null, 4), function(err) { + if (err) { + console.error(err); + process.exit(1); + } + res.json(comments); }); }); }); -app.listen(3000); -console.log('Server started: http://localhost:3000/'); +app.listen(app.get('port'), function() { + console.log('Server started: http://localhost:' + app.get('port') + '/'); +}); diff --git a/server.php b/server.php index 91fb4d1d..e510136b 100644 --- a/server.php +++ b/server.php @@ -1,35 +1,53 @@ $_POST['author'], - 'text' => $_POST['text']]; + $uri = $_SERVER['REQUEST_URI']; + if ($uri == '/') { + echo file_get_contents('./public/index.html'); + } elseif (preg_match('/\/api\/comments(\?.*)?/', $uri)) { + $comments = file_get_contents('comments.json'); + if($_SERVER['REQUEST_METHOD'] === 'POST') { + $commentsDecoded = json_decode($comments, true); + $commentsDecoded[] = [ + 'id' => round(microtime(true) * 1000), + 'author' => $_POST['author'], + 'text' => $_POST['text'] + ]; - $comments = json_encode($commentsDecoded, JSON_PRETTY_PRINT); - file_put_contents('_comments.json', $comments); - } - header('Content-Type: application/json'); - echo $comments; - break; - default: - return false; + $comments = json_encode($commentsDecoded, JSON_PRETTY_PRINT); + file_put_contents('comments.json', $comments); + } + header('Content-Type: application/json'); + header('Cache-Control: no-cache'); + header('Access-Control-Allow-Origin: *'); + echo $comments; + } else { + return false; } } - diff --git a/server.pl b/server.pl new file mode 100644 index 00000000..c3212b9c --- /dev/null +++ b/server.pl @@ -0,0 +1,38 @@ +# This file provided by Facebook is for non-commercial testing and evaluation +# purposes only. Facebook reserves all rights not expressly granted. +# +# 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 +# FACEBOOK 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. + +use Time::HiRes qw(gettimeofday); +use Mojolicious::Lite; +use Mojo::JSON qw(encode_json decode_json); + +app->static->paths->[0] = './public'; + +any '/' => sub { $_[0]->reply->static('index.html') }; + +any [qw(GET POST)] => '/api/comments' => sub { + my $self = shift; + my $comments = decode_json (do { local(@ARGV,$/) = 'comments.json';<> }); + $self->res->headers->cache_control('no-cache'); + $self->res->headers->access_control_allow_origin('*'); + + if ($self->req->method eq 'POST') + { + push @$comments, { + id => int(gettimeofday * 1000), + author => $self->param('author'), + text => $self->param('text'), + }; + open my $FILE, '>', 'comments.json'; + print $FILE encode_json($comments); + } + $self->render(json => $comments); +}; +my $port = $ENV{PORT} || 3000; +app->start('daemon', '-l', "http://*:$port"); diff --git a/server.py b/server.py index 4216b877..03c6213d 100644 --- a/server.py +++ b/server.py @@ -1,5 +1,5 @@ -# This file provided by Facebook is for non-commercial testing and evaluation purposes only. -# Facebook reserves all rights not expressly granted. +# This file provided by Facebook is for non-commercial testing and evaluation +# purposes only. Facebook reserves all rights not expressly granted. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, @@ -9,24 +9,36 @@ # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. import json +import os +import time from flask import Flask, Response, request app = Flask(__name__, static_url_path='', static_folder='public') app.add_url_rule('/', 'root', lambda: app.send_static_file('index.html')) -@app.route('/comments.json', methods=['GET', 'POST']) -def comments_handler(): - with open('_comments.json', 'r') as file: - comments = json.loads(file.read()) +@app.route('/api/comments', methods=['GET', 'POST']) +def comments_handler(): + with open('comments.json', 'r') as f: + comments = json.loads(f.read()) if request.method == 'POST': - comments.append(request.form.to_dict()) + new_comment = request.form.to_dict() + new_comment['id'] = int(time.time() * 1000) + comments.append(new_comment) + + with open('comments.json', 'w') as f: + f.write(json.dumps(comments, indent=4, separators=(',', ': '))) - with open('_comments.json', 'w') as file: - file.write(json.dumps(comments, indent=4, separators=(',', ': '))) + return Response( + json.dumps(comments), + mimetype='application/json', + headers={ + 'Cache-Control': 'no-cache', + 'Access-Control-Allow-Origin': '*' + } + ) - return Response(json.dumps(comments), mimetype='application/json') if __name__ == '__main__': - app.run(port=3000) + app.run(port=int(os.environ.get("PORT", 3000)), debug=True) diff --git a/server.rb b/server.rb index bc1157b0..698f4339 100644 --- a/server.rb +++ b/server.rb @@ -1,5 +1,5 @@ -# This file provided by Facebook is for non-commercial testing and evaluation purposes only. -# Facebook reserves all rights not expressly granted. +# This file provided by Facebook is for non-commercial testing and evaluation +# purposes only. Facebook reserves all rights not expressly granted. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, @@ -11,25 +11,39 @@ require 'webrick' require 'json' -puts 'Server started: http://localhost:3000/' +# default port to 3000 or overwrite with PORT variable by running +# $ PORT=3001 ruby server.rb +port = ENV['PORT'] ? ENV['PORT'].to_i : 3000 + +puts "Server started: http://localhost:#{port}/" root = File.expand_path './public' -server = WEBrick::HTTPServer.new :Port => 3000, :DocumentRoot => root +server = WEBrick::HTTPServer.new Port: port, DocumentRoot: root -server.mount_proc '/comments.json' do |req, res| - comments = JSON.parse(File.read('./_comments.json')) +server.mount_proc '/api/comments' do |req, res| + comments = JSON.parse(File.read('./comments.json', encoding: 'UTF-8')) if req.request_method == 'POST' # Assume it's well formed - comments << req.query - File.write('./_comments.json', JSON.pretty_generate(comments, :indent => ' ')) + comment = { id: (Time.now.to_f * 1000).to_i } + req.query.each do |key, value| + comment[key] = value.force_encoding('UTF-8') unless key == 'id' + end + comments << comment + File.write( + './comments.json', + JSON.pretty_generate(comments, indent: ' '), + encoding: 'UTF-8' + ) end # always return json res['Content-Type'] = 'application/json' + res['Cache-Control'] = 'no-cache' + res['Access-Control-Allow-Origin'] = '*' res.body = JSON.generate(comments) end -trap 'INT' do server.shutdown end +trap('INT') { server.shutdown } server.start