public async Task <Attribute> GetAttributeAsync(string address)
{
AttributeService ethAttribute = new AttributeService(Web3, AccountService.PrivateKey, address);
byte[] descriptionArr = await ethAttribute.DescriptionAsyncCall();
string description = Encoding.UTF8.GetString(descriptionArr, 0, descriptionArr.Length);
description = description.TrimEnd('\0');//remove null characters at the end of string
//Populating attribute object with values from the smart contract
Attribute attributeModel = new Attribute
{
Address = address,
Hash = await ethAttribute.HashAsyncCall(),
Location = await ethAttribute.LocationAsyncCall(),
Owner = await ethAttribute.OwnerAsyncCall(),
Description = description
};
//Fetch the content of the attribute
attributeModel.Content = _contentService.GetContent(attributeModel.Location, attributeModel.Hash);
//Fetching each certificate and adding them to the attribute
Dictionary <string, Certificate> certificates = await GetCertificatesAsync(attributeModel);
foreach (Certificate cert in certificates.Values)
{
//replace the OwningAttribute placeholder with a complete instance
cert.OwningAttribute = attributeModel;
attributeModel.AddCertificate(cert);
}
return(attributeModel);
}