Validator

REST validator

You should define tags for every field

type RequestDTOMerchantSave struct {
	StoreID         string `conform:"trim" binding:"required,min=1,max=30"`
	StoreBio        string `conform:"trim" binding:"omitempty,min=5,max=1000"`
	AvatarFileID    *uint64
	ContactPhone    *ContactPhone    `binding:"omitempty"`
	ContactWhatsapp *ContactWhatsapp `binding:"omitempty"`
	ContactWeb      string           `binding:"omitempty,url"`
	ContactTelegram *ContactTelegram `binding:"omitempty"`
	ContactEmail    string           `conform:"trim" binding:"omitempty,email"`
}

Using binding you can define all rules needed for the particular validation Using conform you can trim the value before validation to be applied

Validation notes

RepatriationAfterTyreBlockInMinutes int               `binding:"numeric,gte=0"`

If you want to support 0 value you should not put required tag for the fields because the validator thinks that zero is not a value