/// <summary>
/// This method deletes an existing agreement between a customer and a merchant with given agreementRef.
/// All recurring agreements connected to the agreementRef will also be deleted.
/// </summary>
/// <param name="request">Ref to an agreement that will be deleted.</param>
public async Task <DeleteAgreementResult> DeleteAgreement(string agreementRef)
{
// Build string for md5 including all fields except empty strings and description field
var hashInput = new StringBuilder();
hashInput.Append(Account.AccountNumber);
hashInput.Append(agreementRef);
// Add encryption key at the end of string to be hashed
hashInput.Append(Account.EncryptionKey);
// Create a hash string from the parameters
string hash;
MD5Hash.Hash(hashInput.ToString(), out hash);
// Invoke Initialize method on external PayEx PxOrder web service
var payexAgreement = GetPxAgreementClient();
var xmlReturn = await payexAgreement.DeleteAgreementAsync(Account.AccountNumber, agreementRef, hash);
// Parse the result
var result = ResultParser.ParseDeleteAgreementResult(xmlReturn);
return(result);
}
