add examples directory

2011-12-30 12:00:40 +01:00 · 2011-12-30 12:00:40 +01:00 · 88406916d8
parent 42c7bcac62
commit 88406916d8
3 changed files with 90 additions and 0 deletions
--- a/examples/chat.rb
+++ b/examples/chat.rb
@ -0,0 +1,61 @@
+#!/usr/bin/env ruby -I ../lib -I lib
+# coding: utf-8
+require 'sinatra'
+set :server, 'thin'
+connections = []
+
+get '/' do
+  halt erb(:login) unless params[:user]
+  erb :chat, :locals => { :user => params[:user].gsub(/\W/, '') }
+end
+
+get '/stream', :provides => 'text/event-stream' do
+  stream :keep_open do |out|
+    connections << out
+    out.callback { connections.delete(out) }
+  end
+end
+
+post '/' do
+  connections.each { |out| out << "data: #{params[:msg]}\n\n" }
+  204 # response without entity body
+end
+
+__END__
+
+@@ layout
+<html>
+  <head> 
+    <title>Super Simple Chat with Sinatra</title> 
+    <meta charset="utf-8" />
+    <script src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script> 
+  </head> 
+  <body><%= yield %></body>
+</html>
+
+@@ login
+<form action='/'>
+  <label for='user'>User Name:</label>
+  <input name='user' value='' />
+  <input type='submit' value="GO!" />
+</form>
+
+@@ chat
+<pre id='chat'></pre>
+
+<script>
+  // reading
+  var es = new EventSource('/stream');
+  es.onmessage = function(e) { $('#chat').append(e.data + "\n") };
+
+  // writing
+  $("form").live("submit", function(e) {
+    $.post('/', {msg: "<%= user %>: " + $('#msg').val()});
+    $('#msg').val(''); $('#msg').focus();
+    e.preventDefault();
+  });
+</script>
+
+<form>
+  <input id='msg' placeholder='type message here...' />
+</form>
--- a/examples/simple.rb
+++ b/examples/simple.rb
@ -0,0 +1,3 @@
+#!/usr/bin/env ruby -I ../lib -I lib
+require 'sinatra'
+get('/') { 'this is a simple app' }
--- a/examples/stream.ru
+++ b/examples/stream.ru
@ -0,0 +1,26 @@
+# this example does *not* work properly with WEBrick
+#
+# run *one* of these:
+#
+#   rackup -s mongrel stream.ru   # gem install mongrel
+#   thin -R stream.ru start       # gem install thin
+#   unicorn stream.ru             # gem install unicorn
+#   puma stream.ru                # gem install puma
+
+require 'sinatra/base'
+
+class Stream < Sinatra::Base
+  get '/' do
+    content_type :txt
+
+    stream do |out|
+      out << "It's gonna be legen -\n"
+      sleep 0.5
+      out << " (wait for it) \n"
+      sleep 1
+      out << "- dary!\n"
+    end
+  end
+end
+
+run Stream