updated and added some packages

api/jwt/verify.go

@@ -0,0 +1,39 @@
+package jwt
+
+import (
+	"fmt"
+
+	"github.com/golang-jwt/jwt"
+)
+
+func VerifyJWT(
+	tokenString string,
+	secretKey string,
+) (map[string]any, error) {
+	token, e := jwt.Parse(
+		tokenString,
+		func(token *jwt.Token) (any, error) {
+			if _, ok := token.Method.(*jwt.SigningMethodHMAC); !ok {
+				return nil, fmt.Errorf(
+					"unexpexted signing method: %v",
+					token.Header["alg"],
+				)
+			}
+			return []byte(secretKey), nil
+		},
+	)
+	if e != nil {
+		return nil, fmt.Errorf("token validation failed: %w", e)
+	}
+	if claims, ok := token.Claims.(jwt.MapClaims); ok && token.Valid {
+		result := make(map[string]any)
+		for key, value := range claims {
+			if key == "exp" || key == "iat" || key == "nbf" {
+				continue
+			}
+			result[key] = value
+		}
+		return result, nil
+	}
+	return nil, fmt.Errorf("invalid token")
+}