🏗️ microservice fabric splitting

common/jwt/refresh_token.go

@@ -0,0 +1,48 @@
+package jwt
+
+import (
+	"time"
+
+	"github.com/golang-jwt/jwt/v5"
+)
+
+type RefreshJWTPayload struct {
+	UserID string `json:"user_id"`
+	Type   string `json:"type"`
+}
+type RefreshJWTClaims struct {
+	RefreshJWTPayload
+	jwt.RegisteredClaims
+}
+
+// GenerateRefreshToken generates a JWT token with the given payload, and returns the accessToken and refreshToken
+func GenerateRefreshToken(secret string, payload RefreshJWTPayload, days time.Duration) string {
+	refreshClaims := RefreshJWTClaims{
+		RefreshJWTPayload: payload,
+		RegisteredClaims: jwt.RegisteredClaims{
+			ExpiresAt: jwt.NewNumericDate(time.Now().Add(days)),
+			IssuedAt:  jwt.NewNumericDate(time.Now()),
+			NotBefore: jwt.NewNumericDate(time.Now()),
+		},
+	}
+	refreshToken := jwt.NewWithClaims(jwt.SigningMethodHS256, refreshClaims)
+	refreshTokenString, err := refreshToken.SignedString([]byte(secret))
+	if err != nil {
+		return ""
+	}
+	return refreshTokenString
+}
+
+// ParseRefreshToken parses a JWT token and returns the payload
+func ParseRefreshToken(secret string, refreshTokenString string) (*RefreshJWTPayload, bool) {
+	token, err := jwt.ParseWithClaims(refreshTokenString, &RefreshJWTClaims{}, func(token *jwt.Token) (interface{}, error) {
+		return []byte(secret), nil
+	})
+	if err != nil {
+		return nil, false
+	}
+	if claims, ok := token.Claims.(*RefreshJWTClaims); ok && token.Valid {
+		return &claims.RefreshJWTPayload, true
+	}
+	return nil, false
+}