How to encode data to hexadecimal or base64 encoding in Go?

To encode data in hexadecimal and base64 encoding in Go, you can use the encoding/hex and encoding/base64 packages respectively. Here's an example for encoding data in hexadecimal and base64:

Encoding data to hexadecimal:

package main

import (
	"encoding/hex"
	"fmt"
)

func main() {
	data := []byte("Hello, World!")

	encodedStr := hex.EncodeToString(data)
	fmt.Println(encodedStr) // Output: 48656c6c6f2c20576f726c6421
}

Encoding data to base64:

package main

import (
	"encoding/base64"
	"fmt"
)

func main() {
	data := []byte("Hello, World!")

	encodedStr := base64.StdEncoding.EncodeToString(data)
	fmt.Println(encodedStr) // Output: SGVsbG8sIFdvcmxkIQ==
}

In both cases, you need to pass the data you want to encode (in the form of a byte slice) to the corresponding EncodeToString() function. The result is a string representing the encoded data.