backend/internal/auth/jwt.go

37 lines
787 B
Go

package auth
import (
"fmt"
"github.com/golang-jwt/jwt/v5"
)
func GenerateJWT(key string, user User, expiryTimestamp uint64) (string, error) {
claims := jwt.MapClaims{
"user": user,
"exp": expiryTimestamp,
}
token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
return token.SignedString([]byte(key))
}
func ValidateJWT(jwtString, key string) (jwt.MapClaims, error) {
token, err := jwt.Parse(jwtString, func(token *jwt.Token) (any, error) {
if _, ok := token.Method.(*jwt.SigningMethodHMAC); !ok {
return nil, fmt.Errorf("Invalid signing method!")
}
return []byte(key), nil
})
if err != nil {
return nil, err
}
if claims, ok := token.Claims.(jwt.MapClaims); ok && token.Valid {
return claims, nil
}
return nil, fmt.Errorf("Invalid token!")
}