Data Streams over WebSockets and HTTP Long Polling Protocols

1.json

{
  "time": "2:07:04pm",
  "price": "510.83",
  "delta": "69.02",
  "perc": "13.51",
  "vol": 2930
}

{
  "time": "2:07:06pm",
  "price": "512.29",
  "delta": "70.48",
  "perc": "13.76",
  "vol": 5120
}

10.ru

$ gem install pubnub

11.ru

require 'pubnub'

my_logger = Logger.new(STDOUT)

pubnub = Pubnub.new(
    subscribe_key: "demo",
    publish_key: "demo",
     error_callback: lambda { |msg|
      puts "Error callback says: #{msg.inspect}"
    },
    logger: my_logger
)

options = {
    channel: "hello_world",
    http_sync: true
}

pubnub.subscribe(options) { |data| puts data.msg }

12.py

$ pip install 'pubnub>=4.0.13'

13.py

from pubnub.pnconfiguration import PNConfiguration
from pubnub.pubnub import PubNub
 
pnconfig = PNConfiguration()
pnconfig.subscribe_key = "my_subkey"
pnconfig.publish_key = "my_pubkey"
pnconfig.ssl = False
 
pubnub = PubNub(pnconfig)

def pn_received(message):
    print(message)
    return True

pubnub.subscribe_sync(channel='hello_world', callback=pn_received)

2.js

<script src="https://cdn.pubnub.com/sdk/javascript/pubnub.4.16.1.js"></script>

3.js

<script>
 (function(){
         
        pubnub = new PubNub({
          publishKey : 'demo',
          subscribeKey : 'demo'
        })
     });

     // The message you want to sent can be anything
     // Examples include strings, numbers, arrays, or JavaScript Objects, etc.
     // JavaScript Objects are automatically converted to JSON strings by the SDK
     pubnub.publish(
     {
         message: {
             such: "Hi, from JavaScript"
         },
         channel: "hello_world",
         sendByPost: false, // true to send via post
         storeInHistory: false, //override default storage options
         meta: {
             "cool": "meta"
               } // publish extra meta with the request
           },
           function (status, response) {
               // handle status, response
           }
      );

})();
</script>

4.ru

$ gem install pubnub

5.ru

require 'pubnub'

my_logger = Logger.new(STDOUT)

pubnub = Pubnub.new(
    publish_key: "demo",
    subscribe_key: 'demo',
    error_callback: lambda { |msg|
      puts "Error callback says: #{msg.inspect}"
    },
    logger: my_logger
)

options = {
    message: "Hi, from Ruby", 
    channel: "hello_world",
    http_sync: true
}

pubnub.publish(options) do |envelope|
    puts envelope.status
end

6.py

$ pip install 'pubnub>=4.0.13'

7.py

from pubnub.pnconfiguration import PNConfiguration
from pubnub.pubnub import PubNub
 
pnconfig = PNConfiguration()
pnconfig.subscribe_key = "my_subkey"
pnconfig.publish_key = "my_pubkey"
pnconfig.ssl = False
 
pubnub = PubNub(pnconfig)

def publish_callback(result, status):
    pass
    # Handle PNPublishResult and PNStatus
 
print pubnub.publish().channel('hello_world').message(['Hi, from Python']).async(publish_callback)

8.js

<script src="https://cdn.pubnub.com/sdk/javascript/pubnub.4.16.1.js"></script>

9.js

<script>
 (function(){
     var pubnub = new PubNub({
         subscribeKey: "mySubscribeKey",
         publishKey: "demo",
         ssl: true
     })
     // Messages received on the specified channel will be sent to the message callback function
     // JSON strings are automatically converted to JavaScript Objects by the SDK
     pubnub.subscribe({
         channels: ['hello_world'],
         message : function(msg) {  
             console.log(msg);
         }
      });
})();
</script>