1. type Job struct{
    2.     Type          string `validate:"required,min=3,max=32"`
    3.     Salary        int    `validate:"required,number"`
    4. }
    6. type User struct{
    7.     Name          string  `validate:"required,min=3,max=32"`
    8.     IsActive      bool    `validate:"required,eq=True|eq=False"`
    9.     Email         string  `validate:"required,email,min=6,max=32"`
    10.     Job           Job     `validate:"dive"`
    11. }
    13. type ErrorResponse struct {
    14.     FailedField string
    15.     Tag         string
    16.     Value       string
    17. }
    19. func ValidateStruct(user User) []*ErrorResponse {
    20.     var errors []*ErrorResponse
    21.     validate := validator.New()
    22.     err := validate.Struct(user)
    23.     if err != nil {
    24.         for _, err := range err.(validator.ValidationErrors) {
    25.             var element ErrorResponse
    26.             element.FailedField = err.StructNamespace()
    27.             element.Tag = err.Tag()
    28.             element.Value = err.Param()
    29.             errors = append(errors, &element)
    30.         }
    31.     }
    32.     return errors
    33. }
    35. func AddUser(c *fiber.Ctx) {
    36.     //Connect to database
    38.     user := new(User)
    40.     if err := c.BodyParser(user); err != nil {
    41.         c.Status(fiber.StatusInternalServerError).JSON(fiber.Map{
    42.             message: err.Error(),
    43.         })
    44.         return
    45.     }
    47.     errors := ValidateStruct(*user)
    48.     if errors != nil {
    49.         c.JSON(errors)
    50.         return
    51.     }
    53.     //Do something else here
    55.     //Return user
    56.     c.JSON(user)
    57. }
    59. // Running a test with the following curl commands
    60. // curl -X POST -H "Content-Type: application/json" --data "{\"name\":\"john\",\"isactive\":\"True\"}" http://localhost:8080/register/user
    62. // Results in
    63. // [{"FailedField":"User.Email","Tag":"required","Value":""},{"FailedField":"User.Job.Salary","Tag":"required","Value":""},{"FailedField":"User.Job.Type","Tag":"required","Value":""}]⏎