☄️ An example of using the CppComet server to create a chat. For more information about CppComet, see documentation
Typical scheme of chat:
- Connecting to the comet server by websockets
- Send ajax message for add new massage to chat
- Send message to CppComet
- CppComet send messages for all subscribers in pipe
- Add message to database (optional)
CppComet has cloud saas alternative that can be used for testing and demo access. In the following examples I will use demonstration access from https://comet-server.com for those who could not or were too lazy to deploy the server on their VPS
Password:lPXBFPqNg3f661JcegBY0N0dPXqUBdHXqj2cHf04PZgLHxT6z55e20ozojvMRvB8
Host: app.comet-server.ru
To connect to the comet server from the JavaScript API, use the following command:
cometApi.start({node:"app.comet-server.ru", dev_id:15})
- in parameter node - set hostname of your own server
- parameter dev_id - use only if you use saas service comet-server.com
- Send ajax query to php back-end
- Send CometQL query for comet server
Connection code to CppComet using MySQL protocol:
$host = "app.comet-server.ru";
$user = "15";
$password = "lPXBFPqNg3f661JcegBY0N0dPXqUBdHXqj2cHf04PZgLHxT6z55e20ozojvMRvB8";
$comet = mysqli_connect($host, $user, $password, "CometQL_v1");
The code for sending a message to the pipe "simplechat" and event 'newMessage':
$query = "INSERT INTO pipes_messages (name, event, message)VALUES('simplechat', 'newMessage', '".$msg."')";
mysqli_query($comet, $query);
subscription Code to the pipe on comet server. This callback will be called when somebody send message into channel simplechat
cometApi.subscription("simplechat.newMessage", function(event){
$("#web_chat").append('<b>'+HtmlEncode(event.data.name)+'</b>')
$("#web_chat").append('<pre>'+HtmlEncode(event.data.text)+'</pre>')
$("#web_chat").append('<br>')
})