<|im_start|>user
How do I create a JWT token in Go?<|im_end|>
<|im_start|>assistant
To create a JWT token in Go, you can use the popular "github.com/dgrijalva/jwt-go" library. Here's an example code snippet that demonstrates how to create a JWT token:

```go
package main

import (
	"fmt"
	"time"

	"github.com/dgrijalva/jwt-go"
)

func main() {
	// Set the secret key used to sign the token
	secret := []byte("my_secret_key")

	// Create a new token with a set of claims
	token := jwt.NewWithClaims(jwt.SigningMethodHS256, jwt.MapClaims{
		"username": "my_username",
		"exp":      time.Now().Add(time.Hour * 24).Unix(),
	})

	// Sign the token with the secret key
	tokenString, err := token.SignedString(secret)
	if err != nil {
		fmt.Println("Error creating token string:", err)
		return
	}

	// Print the JWT token string
	fmt.Println(tokenString)
}
```

In this example, we first set a secret key that will be used to sign the token. We then create a new token with a set of claims (in this case, a username and an expiration time of 24 hours from now). Finally, we sign the token with the secret key and print out the resulting JWT token string.<|im_end|>
<|im_start|>user
What are the advantages of using JWT over cookies for authentication? What are the disadvantages?<|im_end|>
<|im_start|>assistant
In short, JWT generates token on the server side and store them in the client while cookies work as remembering information on the client browser. They are different.<|im_end|>
