public async Task <bool> registerProperty([FromBody] Property property)//ActionResult<Admin>

        {
            var propertyData = await context.retrieveByPropertyId(property.propertyId);

            propertyData = JsonConvert.SerializeObject(propertyData);
            if (propertyData.ToString() == "[]")
            {
                await context.insert(property);

                return(true);
            }
            return(false);
        }
        public async Task <string> registerPropertiesAll([FromBody] Property[] Property)
        {
            string flag = await context.insert(Property);

            return(flag);
        }