TBC Bank IntegrationService Standard+ C#/net8 Client

Why - official implementation is error-prone, easy-to-mess-up and requires a lot of manual fixing

Current library attempts to wrap soap calls in immutable, type-safe way

You will require 4 things from the TBC Bank - 1) .pfx certificate, 2) Username, 3) Password and 4) certificate_password

Service Documentation by the TBC Bank is here - https://developers.tbcbank.ge/docs/dbi-overview

Installation

dotnet add package AppifySheets.TBC.IntegrationService.Client

Following services are implemented:

• Import Single Payment Orders - Execute various types of payment transfers
• Get Account Movements - Retrieve account transaction history
• Get Payment Order Status - Check status of submitted payment orders
• Change Password - Change API user password

Usage Examples

Setup

// Create API credentials with validation
var credentialsResult = TBCApiCredentials.Create("Username", "Password");
if (credentialsResult.IsFailure)
    return credentialsResult.Error;

// Add certificate authentication
var credentialsWithCertResult = TBCApiCredentialsWithCertificate.Create(
    credentialsResult.Value, 
    "TBCIntegrationService.pfx", 
    "certificate_password");
    
// Create SOAP caller
var soapCallerResult = TBCSoapCaller.Create(credentialsWithCertResult.Value);
var tbcSoapCaller = soapCallerResult.Value;

// Create bank accounts
var ownAccountGEL = BankAccount.Create("GE00TB0000000000000001", "GEL").Value;
var ownAccountUSD = BankAccount.Create("GE00TB0000000000000002", "USD").Value;

// Or create components separately
var ibanResult = Iban.Create("GE00TB0000000000000001");
var accountResult = BankAccount.Create(ibanResult.Value, Currency.GEL);
if (accountResult.IsFailure)
    return accountResult.Error;

Account Operations

Get Account Movements

// Get account movements for a specific period
var accountMovements = await GetAccountMovementsHelper.GetAccountMovement(
    new Period(new DateTime(2023, 9, 1), new DateTime(2023, 9, 26)), 
    tbcSoapCaller);

// The helper method handles pagination automatically
// Returns all movements within the specified period

Get Payment Order Status

// Check status of a specific payment order by its ID
var paymentOrderId = 1632027071; // The ID returned when creating a payment order
var checkStatus = await tbcSoapCaller.GetDeserialized(
    new GetPaymentOrderStatusRequestIo(paymentOrderId));

// Returns status information including:
// - Current status (pending, completed, rejected, etc.)
// - Processing details
// - Error messages if any

Change Password

// Change API user password (requires digipass code)
var newPassword = "NewSecurePassword123!";
var digipassCode = "123456"; // One-time code from your digipass device

var passwordChangeResult = await tbcSoapCaller.GetDeserialized(
    new ChangePasswordRequestIo(newPassword, digipassCode));

// Note: After successful password change, update your credentials

Payment Transfers

Common Transfer Parameters

// Common parameters for all transfer types
var bankTransferCommonDetails = new BankTransferCommonDetails
{
    DocumentNumber = 123,
    Amount = 0.01m,
    BeneficiaryName = "TEST",
    SenderAccountWithCurrency = ownAccountGEL,
    Description = "TEST"
};

Internal Transfers (Within TBC Bank)

Transfer in GEL

var withinBankGel = await tbcSoapCaller.GetDeserialized(new ImportSinglePaymentOrdersRequestIo(
    new TransferWithinBankPaymentOrderIo
    {
        RecipientAccountWithCurrency = BankAccount.Create("GE00TB0000000000000003", "GEL").Value,
        BankTransferCommonDetails = bankTransferCommonDetails
    }));

Transfer in Foreign Currency (USD)

var withinBankCurrency = await tbcSoapCaller.GetDeserialized(new ImportSinglePaymentOrdersRequestIo(
    new TransferWithinBankPaymentOrderIo
    {
        BankTransferCommonDetails = bankTransferCommonDetails with
        {
            SenderAccountWithCurrency = ownAccountUSD
        },
        RecipientAccountWithCurrency = BankAccount.Create("GE00TB0000000000000004", "USD").Value,
    }));

External Transfers (To Other Banks)

Domestic Transfer to Another Georgian Bank (GEL)

var toAnotherBankGel = await tbcSoapCaller.GetDeserialized(
    new ImportSinglePaymentOrdersRequestIo(
        new TransferToOtherBankNationalCurrencyPaymentOrderIo(
            BankAccount.Create("GE00BG0000000000000001", "GEL").Value, 
            "123456789") // Beneficiary tax code
        {
            BankTransferCommonDetails = bankTransferCommonDetails
        }));

International Transfer (Foreign Currency)

var toAnotherBankCurrency = await tbcSoapCaller.GetDeserialized(
    new ImportSinglePaymentOrdersRequestIo(
        new TransferToOtherBankForeignCurrencyPaymentOrderIo(
            "Beneficiary Bank Name",
            "BANKSWIFT", // Bank SWIFT/BIC code
            "SHA", // Charge type: SHA (shared), OUR (sender pays), BEN (beneficiary pays)
            "Payment Reference",
            BankAccount.Create("GE00BG0000000000000002", "USD").Value)
        {
            BankTransferCommonDetails = bankTransferCommonDetails with 
            { 
                SenderAccountWithCurrency = ownAccountUSD 
            }
        }));

International Transfer Example (To China)

var toChina = await tbcSoapCaller.GetDeserialized(
    new ImportSinglePaymentOrdersRequestIo(
        new TransferToOtherBankForeignCurrencyPaymentOrderIo(
            "China",
            "ICBKCNBJSZN", // Bank SWIFT code
            "INDUSTRIAL AND COMMERCIAL BANK OF CHINA SHENZHEN BRANCH", // Bank name
            "SHA", // Charge type
            BankAccount.Create("CN0000000000000000001", "USD").Value)
        {
            BankTransferCommonDetails = bankTransferCommonDetails with
            {
                SenderAccountWithCurrency = ownAccountUSD,
                BeneficiaryName = "Shenzhen Example Company Ltd"
            }
        }));

Treasury Transfers

// Transfer to Georgian Treasury
var toTreasury = await tbcSoapCaller.GetDeserialized(
    new ImportSinglePaymentOrdersRequestIo(
        new TreasuryTransferPaymentOrderIo(101001000) // Treasury code
        { 
            BankTransferCommonDetails = bankTransferCommonDetails 
        }));

Error Handling

All operations return a Result<T> type from CSharpFunctionalExtensions:

var result = await tbcSoapCaller.GetDeserialized(request);

if (result.IsSuccess)
{
    var response = result.Value;
    // Process successful response
}
else
{
    var error = result.Error;
    // Handle error
    Console.WriteLine($"Operation failed: {error}");
}

Important Notes

• All monetary amounts are in decimal format
• IBAN accounts must be valid Georgian IBANs (starting with GE)
• Document numbers must be unique per day
• Digipass codes are required for sensitive operations like password changes
• Certificate authentication is mandatory for all API calls