package auth import ( "time" "github.com/golang-jwt/jwt/v5" ) type Config struct { Secret string Issuer string AccessTokenExpiry time.Duration RefreshTokenExpiry time.Duration } type Claims struct { Username string `json:"username"` TokenType string `json:"type"` jwt.RegisteredClaims } // Typescript: interface type TokenPair struct { AccessToken string `json:"access_token"` RefreshToken string `json:"refresh_token"` }