Home > Uncategorized > Node.js client to server with socket.io

Node.js client to server with socket.io

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Socket.io is usually employed by browser apps communicating with a Node.js server application. It is however possible to create a client in Node.js if you need to call the same server application. It is also possible for the server to return values by calling a function that the client passes to it.

You’ll need to install socket.io and socket.io-client using npm as shown below. Additionally, we also use express for serving static HTTP content.

This is how a client connection can be established. The namespace ns is used for communicating with the server. Client emits the event call with parameter p1, and a function parameter that receives a response code and additional data. Remember to export global node_modules folder in NODE_PATH before running the script with node e.g. export NODE_PATH=/usr/local/lib/node_modules/. npm -g list | head shows the path to node_modules.

This is how a server can serve the…

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