How to send Go slicing over a network connection?

Detailed explanation of Go language slicing network transmission: efficiently sending slice data

This article discusses how to send sliced ​​data through a network connection in Go language network programming. The net.Conn.Write method requires that the parameter is of type []byte , so it needs to type convert the slice.

In Go language network programming, data is often needed to be sent to the network connection. The net.Conn.Write method accepts []byte type parameters, so sending non- []byte type variables (such as slices) requires type conversion.

Question: How to send Go slicing variables to a network connection? It is not feasible to pass slices directly to net.Conn.Write .

Solution: leverage JSON encoding. For slices containing custom type data, you can use encoding/json package for JSON encoding and convert it to the []byte type. Then, send the byte array via net.Conn.Write .

After receiving the data, the receiving end also uses encoding/json package for JSON decoding, converting the []byte data back to the corresponding slice type. This requires that the client and server side be consistent with the data structure and type to ensure the correctness of encoding and decoding.

This method is suitable for various types of slices as long as their element type can be JSON-encoded. If the slice contains types that cannot be JSON encoding, you need to use a custom encoding method. Remember, efficient data transmission requires the client and server to agree on the data format.

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