How to decompress a gzip file in Go?

To decompress a gzip file in Go, you can use the compress/gzip package. Here's a step-by-step guide on how to achieve this:

Import the necessary packages:

import (
	"compress/gzip"
	"fmt"
	"io"
	"os"
)

Open the gzip file for reading:

file, err := os.Open("compressed_file.gzip")
if err != nil {
    fmt.Println("Error opening file:", err)
    return
}
defer file.Close()

Create a gzip reader:

gzipReader, err := gzip.NewReader(file)
if err != nil {
    fmt.Println("Error creating gzip reader:", err)
    return
}
defer gzipReader.Close()

Create a file to write the decompressed data:

outputFile, err := os.Create("decompressed_file.txt")
if err != nil {
    fmt.Println("Error creating output file:", err)
    return
}
defer outputFile.Close()

Copy the decompressed data from the gzip reader to the output file:

_, err = io.Copy(outputFile, gzipReader)
if err != nil {
    fmt.Println("Error decompressing file:", err)
    return
}

Print a success message:

fmt.Println("File decompressed successfully.")

That's it! The above code will decompress the gzip file and save the decompressed data to the specified output file. Make sure to replace "compressed_file.gzip" with the actual path of your gzip file, and "decompressed_file.txt" with the desired output file path.