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Security News
Deno 2.2 Improves Dependency Management and Expands Node.js Compatibility
Deno 2.2 enhances Node.js compatibility, improves dependency management, adds OpenTelemetry support, and expands linting and task automation for developers.
WebSocket component for Sinatra RocketIO
% gem install sinatra-websocketio
Server Side
require 'sinatra'
require 'sinatra/websocketio'
set :websocketio, :port => 9000
run Sinatra::Application
io = Sinatra::WebSocketIO
io.push :temperature, 35 # to all clients
io.push :light, {:value => 150}, {:to => session_id} # to specific client
Client Side
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<script src="<%= websocketio_js %>"></script>
var io = new WebSocketIO().connect();
io.on("temperature", function(value){
console.log("server temperature : " + value);
}); // => "server temperature : 35"
io.on("light", function(data){
console.log("server light sensor : " + data.value);
}); // => "server light sensor : 150"
Client Side
io.on("connect", function{
io.push("chat", {name: "shokai", message: "hello"}); // client -> server
});
Server Side
io.on :chat do |data, session|
puts "#{data['name']} : #{data['message']} <#{session}>"
end
## => "shokai : hello <12abcde345f6g7h8ijk>"
Client Side
io.on("connect", function(session){
alert("connect!!");
});
io.on("disconnect", function(){
alert("disconnected");
});
Server Side
io.on :connect do |session|
puts "new client <#{session}>"
io.push :hello, "hello!!"
end
io.on :disconnect do |session|
puts "client disconnected <#{session}>"
end
Client Side
io.on("error", function(err){
console.error(err);
});
Server Side
io.on :error do |e|
STDERR.puts e
end
Server Side
event_id = io.on :chat do |data, from|
puts "#{data} - from#{from}"
end
io.removeListener event_id
or
io.removeListener :chat # remove all "chat" listener
Client Side
var event_id = io.on("error", function(err){
console.error("WebSocketIO error : "err);
});
io.removeListener(event_id);
or
io.removeListener("error"); // remove all "error" listener
set :websocketio, :port => 9000
or
% WS_PORT=9000 rackup config.ru
chat app
% gem install bundler
% bundle install
start server
% rake test_server
run test
% rake test
git checkout -b my-new-feature
)git commit -am 'Add some feature'
)git push origin my-new-feature
)FAQs
Unknown package
We found that sinatra-websocketio demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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