To base64-decode a string in Go, you can use the decoding.DecodeString function from the encoding/base64 package.

This function takes a base64-encoded string as input and returns the decoded data as a byte slice.

Here’s an example:

package main

import (

func main() {
    // The string to be decoded:
    encoded := "SGVsbG8gV29ybGQh"

    // Decode the string:
    decoded, err := base64.StdEncoding.DecodeString(encoded)

    if err != nil {
        fmt.Println("Error while decoding the string", 

    // Print the decoded data:
    // Output: Hello World!

    // Encode it back:
    enc := base64.StdEncoding.EncodeToString(decoded)

    // Output: SGVsbG8gV29ybGQh
    fmt.Println("encoded", enc)

That was your nugget 😄.

Until the next one… May the source be with you 🦄.

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