How to create a new bufio.Reader from an io.Reader in Go?

To create a new bufio.Reader from an existing io.Reader in Go, you can use the following code:

import (
    "bufio"
    "io"
)

func main() {
    reader := // your existing io.Reader

    bufferedReader := bufio.NewReader(reader)
    
    // Use the bufferedReader to read from the io.Reader
}

Here, bufio.NewReader() function accepts an io.Reader and returns a new bufio.Reader that wraps it. It provides additional buffering to improve performance when reading data.

You can then use the bufferedReader to perform various reading operations like Read(), ReadByte(), ReadString(), etc.