Sha256: 154abcc77f9166a8f8bdb3aef3c5e685f067e0ddaf0bfd6ec07f2d85b8de2feb
Contents?: true
Size: 1.83 KB
Versions: 3
Compression:
Stored size: 1.83 KB
Contents
#!/usr/bin/env falcon --verbose serve -c require 'rack' require 'cgi' def bottles(n) n == 1 ? "#{n} bottle" : "#{n} bottles" end # Browsers don't show streaming content until a certain threshold has been met. For most browers, it's about 1024 bytes. So, we have a comment of about that length which we feed to the client before streaming actual content. For more details see https://stackoverflow.com/questions/16909227 COMMENT = "<!--#{'-' * 1024}-->" # To test this example with the curl command-line tool, you'll need to add the `--no-buffer` flag or set the COMMENT size to the required 4096 bytes in order for curl to start streaming. # curl http://localhost:9292/ --no-buffer run lambda {|env| task = Async::Task.current body = Async::HTTP::Body::Writable.new request = Rack::Request.new(env) count = (request.params['count'] || 99).to_i body.write("<!DOCTYPE html><html><head><title>#{count} Bottles of Beer</title></head><body>") task.async do |task| begin body.write(COMMENT) count.downto(1) do |i| task.annotate "bottles of beer #{i}" Async.logger.info(body) {"#{bottles(i)} of beer on the wall..."} body.write("<p>#{bottles(i)} of beer on the wall, ") task.sleep(0.1) body.write("#{bottles(i)} of beer, ") task.sleep(0.1) body.write("take one down and pass it around, ") task.sleep(0.1) body.write("#{bottles(i-1)} of beer on the wall.</p>") task.sleep(0.1) body.write("<script>var child; while (child = document.body.firstChild) child.remove();</script>") end code = File.read(__FILE__) body.write("<h1>Source Code</h1>") body.write("<pre><code>#{CGI.escapeHTML code}</code></pre>") body.write("</body></html>") rescue puts "Remote end closed connection: #{$!}" ensure body.close end end [200, {'content-type' => 'text/html; charset=utf-8'}, body] }
Version data entries
3 entries across 3 versions & 1 rubygems
Version | Path |
---|---|
falcon-0.35.2 | examples/beer/config.ru |
falcon-0.35.1 | examples/beer/config.ru |
falcon-0.35.0 | examples/beer/config.ru |