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Multi-Port Configuration in Go Web Applications
In Go, the http package provides straightforward functionality for setting up a web server. By invoking http.ListenAndServe(PORT, nil), you can establish a listening socket on the specified TCP port.
Multi-Port Binding: Is It Possible?
The question arises: can you configure the ListenAndServe function to bind to multiple ports simultaneously, say http.ListenAndServe(":80, :8080", nil)?
Answer: No, Multiple Ports from a Single Application
Unfortunately, it is not possible to bind to multiple ports directly from a single web application in Go. This behavior is imposed by the underlying operating system and networking limitations.
Alternative: Starting Multiple Listeners
To achieve multi-port functionality, you can start multiple listeners and bind them to different ports individually. For example:
go http.ListenAndServe(":80", handlerA) http.ListenAndServe(":8080", handlerB)
This code snippet creates two separate listeners, one listening on port 80 and the other on port 8080. Each listener handles a different request handler.
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