Echo Test
Let us start with the Echo Test application. Go to the URL https://www.websocket.org/echo.html. Here you can see a readymade Echo server which we can hit and then receive a message. It just gives you a server; when you send a message to this server it will send the same message in return. Go ahead and play with your Echo application. After this, we will see how to write our own client code to hit this Echo server.
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