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README.md

Sync for Payables

Streamline your customers' accounts payable workflow.

Summary

Bill pay (synchronous solution): The API reference for the synchronous Bill Pay solution.

The synchronous Bill Pay solution is an API and a set of supporting tools designed to integrate a bill pay flow into your app as quickly as possible. It's ideal for facilitating essential bill payment processes within your SMB's accounting software.

Explore solution | See OpenAPI spec

Supported Integrations

Integration Supported
FreeAgent Yes
QuickBooks Online Yes
Oracle NetSuite Yes
Sage Intacct Yes
Xero Yes
Zoho Books Yes

Endpoints

Endpoints Description
Companies Create and manage your SMB users' companies.
Connections Create new and manage existing data connections for a company.
Company information View company profile from the source platform.
Bills Get, create, and update Bills.
Bill payments Get, create, and update Bill payments.
Suppliers Get, create, and update Suppliers.
Bank accounts Create a bank account for a given company's connection.

Table of Contents

SDK Installation

NuGet

To add the NuGet package to a .NET project:

dotnet add package Codat.Sync.Payables

Locally

To add a reference to a local instance of the SDK in a .NET project:

dotnet add reference Codat/Sync/Payables/Codat.Sync.Payables.csproj

Example Usage

SDK Example Usage

Example

using Codat.Sync.Payables;
using Codat.Sync.Payables.Models.Components;
using Codat.Sync.Payables.Models.Requests;

var sdk = new CodatSyncPayables(authHeader: "Basic BASE_64_ENCODED(API_KEY)");

ListCompaniesRequest req = new ListCompaniesRequest() {
    Query = "id=e3334455-1aed-4e71-ab43-6bccf12092ee",
    OrderBy = "-modifiedDate",
    Tags = "region=uk && team=invoice-finance",
};

var res = await sdk.Companies.ListAsync(req);

// handle response

Available Resources and Operations

Available methods

BankAccounts

  • Create - Create bank account

BillPayments

Bills

Companies

CompanyInformation

  • Get - Get company information

Connections

  • List - List connections
  • Create - Create connection
  • Get - Get connection
  • Delete - Delete connection
  • Unlink - Unlink connection

Suppliers

Retries

Some of the endpoints in this SDK support retries. If you use the SDK without any configuration, it will fall back to the default retry strategy provided by the API. However, the default retry strategy can be overridden on a per-operation basis, or across the entire SDK.

To change the default retry strategy for a single API call, simply pass a RetryConfig to the call:

using Codat.Sync.Payables;
using Codat.Sync.Payables.Models.Components;
using Codat.Sync.Payables.Models.Requests;

var sdk = new CodatSyncPayables(authHeader: "Basic BASE_64_ENCODED(API_KEY)");

ListCompaniesRequest req = new ListCompaniesRequest() {
    Query = "id=e3334455-1aed-4e71-ab43-6bccf12092ee",
    OrderBy = "-modifiedDate",
    Tags = "region=uk && team=invoice-finance",
};

var res = await sdk.Companies.ListAsync(
    retryConfig: new RetryConfig(
        strategy: RetryConfig.RetryStrategy.BACKOFF,
        backoff: new BackoffStrategy(
            initialIntervalMs: 1L,
            maxIntervalMs: 50L,
            maxElapsedTimeMs: 100L,
            exponent: 1.1
        ),
        retryConnectionErrors: false
    ),
    request: req
);

// handle response

If you'd like to override the default retry strategy for all operations that support retries, you can use the RetryConfig optional parameter when intitializing the SDK:

using Codat.Sync.Payables;
using Codat.Sync.Payables.Models.Components;
using Codat.Sync.Payables.Models.Requests;

var sdk = new CodatSyncPayables(
    retryConfig: new RetryConfig(
        strategy: RetryConfig.RetryStrategy.BACKOFF,
        backoff: new BackoffStrategy(
            initialIntervalMs: 1L,
            maxIntervalMs: 50L,
            maxElapsedTimeMs: 100L,
            exponent: 1.1
        ),
        retryConnectionErrors: false
    ),
    authHeader: "Basic BASE_64_ENCODED(API_KEY)"
);

ListCompaniesRequest req = new ListCompaniesRequest() {
    Query = "id=e3334455-1aed-4e71-ab43-6bccf12092ee",
    OrderBy = "-modifiedDate",
    Tags = "region=uk && team=invoice-finance",
};

var res = await sdk.Companies.ListAsync(req);

// handle response

Error Handling

CodatSyncPayablesException is the base exception class for all HTTP error responses. It has the following properties:

Property Type Description
Message string Error message
StatusCode int HTTP status code
Headers HttpResponseHeaders HTTP headers
ContentType string? HTTP content type
RawResponse HttpResponseMessage HTTP response object
Body string HTTP response body

Some exceptions in this SDK include an additional Payload field, which will contain deserialized custom error data when present. Possible exceptions are listed in the Error Classes section.

Example

using Codat.Sync.Payables;
using Codat.Sync.Payables.Models.Components;
using Codat.Sync.Payables.Models.Errors;
using Codat.Sync.Payables.Models.Requests;

var sdk = new CodatSyncPayables(authHeader: "Basic BASE_64_ENCODED(API_KEY)");

try
{
    ListCompaniesRequest req = new ListCompaniesRequest() {
        Query = "id=e3334455-1aed-4e71-ab43-6bccf12092ee",
        OrderBy = "-modifiedDate",
        Tags = "region=uk && team=invoice-finance",
    };

    var res = await sdk.Companies.ListAsync(req);

    // handle response
}
catch (CodatSyncPayablesException ex)  // all SDK exceptions inherit from CodatSyncPayablesException
{
    // ex.ToString() provides a detailed error message
    System.Console.WriteLine(ex);

    // Base exception fields
    HttpResponseMessage rawResponse = ex.RawResponse;
    HttpResponseHeaders headers = ex.Headers;
    int statusCode = ex.StatusCode;
    string? contentType = ex.ContentType;
    var responseBody = ex.Body;

    if (ex is ErrorMessage) // different exceptions may be thrown depending on the method
    {
        // Check error data fields
        ErrorMessagePayload payload = ex.Payload;
        long StatusCode = payload.StatusCode;
        string Service = payload.Service;
        // ...
    }

    // An underlying cause may be provided
    if (ex.InnerException != null)
    {
        Exception cause = ex.InnerException;
    }
}
catch (System.Net.Http.HttpRequestException ex)
{
    // Check ex.InnerException for Network connectivity errors
}

Error Classes

Primary exceptions:

Less common exceptions (2)

Server Selection

Override Server URL Per-Client

The default server can be overridden globally by passing a URL to the serverUrl: string optional parameter when initializing the SDK client instance. For example:

using Codat.Sync.Payables;
using Codat.Sync.Payables.Models.Components;
using Codat.Sync.Payables.Models.Requests;

var sdk = new CodatSyncPayables(
    serverUrl: "https://api.codat.io",
    authHeader: "Basic BASE_64_ENCODED(API_KEY)"
);

ListCompaniesRequest req = new ListCompaniesRequest() {
    Query = "id=e3334455-1aed-4e71-ab43-6bccf12092ee",
    OrderBy = "-modifiedDate",
    Tags = "region=uk && team=invoice-finance",
};

var res = await sdk.Companies.ListAsync(req);

// handle response

Authentication

Per-Client Security Schemes

This SDK supports the following security scheme globally:

Name Type Scheme
AuthHeader apiKey API key

To authenticate with the API the AuthHeader parameter must be set when initializing the SDK client instance. For example:

using Codat.Sync.Payables;
using Codat.Sync.Payables.Models.Components;
using Codat.Sync.Payables.Models.Requests;

var sdk = new CodatSyncPayables(authHeader: "Basic BASE_64_ENCODED(API_KEY)");

ListCompaniesRequest req = new ListCompaniesRequest() {
    Query = "id=e3334455-1aed-4e71-ab43-6bccf12092ee",
    OrderBy = "-modifiedDate",
    Tags = "region=uk && team=invoice-finance",
};

var res = await sdk.Companies.ListAsync(req);

// handle response

Custom HTTP Client

The C# SDK makes API calls using an ISpeakeasyHttpClient that wraps the native HttpClient. This client provides the ability to attach hooks around the request lifecycle that can be used to modify the request or handle errors and response.

The ISpeakeasyHttpClient interface allows you to either use the default SpeakeasyHttpClient that comes with the SDK, or provide your own custom implementation with customized configuration such as custom message handlers, timeouts, connection pooling, and other HTTP client settings.

The following example shows how to create a custom HTTP client with request modification and error handling:

using Codat.Sync.Payables;
using Codat.Sync.Payables.Utils;
using System.Net.Http;
using System.Threading;
using System.Threading.Tasks;

// Create a custom HTTP client
public class CustomHttpClient : ISpeakeasyHttpClient
{
    private readonly ISpeakeasyHttpClient _defaultClient;

    public CustomHttpClient()
    {
        _defaultClient = new SpeakeasyHttpClient();
    }

    public async Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken? cancellationToken = null)
    {
        // Add custom header and timeout
        request.Headers.Add("x-custom-header", "custom value");
        request.Headers.Add("x-request-timeout", "30");
        
        try
        {
            var response = await _defaultClient.SendAsync(request, cancellationToken);
            // Log successful response
            Console.WriteLine($"Request successful: {response.StatusCode}");
            return response;
        }
        catch (Exception error)
        {
            // Log error
            Console.WriteLine($"Request failed: {error.Message}");
            throw;
        }
    }

    public void Dispose()
    {
        _httpClient?.Dispose();
        _defaultClient?.Dispose();
    }
}

// Use the custom HTTP client with the SDK
var customHttpClient = new CustomHttpClient();
var sdk = new CodatSyncPayables(client: customHttpClient);
You can also provide a completely custom HTTP client with your own configuration: 
using Codat.Sync.Payables.Utils;
using System.Net.Http;
using System.Threading;
using System.Threading.Tasks;

// Custom HTTP client with custom configuration
public class AdvancedHttpClient : ISpeakeasyHttpClient
{
    private readonly HttpClient _httpClient;

    public AdvancedHttpClient()
    {
        var handler = new HttpClientHandler()
        {
            MaxConnectionsPerServer = 10,
            // ServerCertificateCustomValidationCallback = customCertValidation, // Custom SSL validation if needed
        };

        _httpClient = new HttpClient(handler)
        {
            Timeout = TimeSpan.FromSeconds(30)
        };
    }

    public async Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken? cancellationToken = null)
    {
        return await _httpClient.SendAsync(request, cancellationToken ?? CancellationToken.None);
    }

    public void Dispose()
    {
        _httpClient?.Dispose();
    }
}

var sdk = CodatSyncPayables.Builder()
    .WithClient(new AdvancedHttpClient())
    .Build();
For simple debugging, you can enable request/response logging by implementing a custom client: 
public class LoggingHttpClient : ISpeakeasyHttpClient
{
    private readonly ISpeakeasyHttpClient _innerClient;

    public LoggingHttpClient(ISpeakeasyHttpClient innerClient = null)
    {
        _innerClient = innerClient ?? new SpeakeasyHttpClient();
    }

    public async Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken? cancellationToken = null)
    {
        // Log request
        Console.WriteLine($"Sending {request.Method} request to {request.RequestUri}");
        
        var response = await _innerClient.SendAsync(request, cancellationToken);
        
        // Log response
        Console.WriteLine($"Received {response.StatusCode} response");
        
        return response;
    }

    public void Dispose() => _innerClient?.Dispose();
}

var sdk = new CodatSyncPayables(client: new LoggingHttpClient());

The SDK also provides built-in hook support through the SDKConfiguration.Hooks system, which automatically handles BeforeRequestAsync, AfterSuccessAsync, and AfterErrorAsync hooks for advanced request lifecycle management.

Support

If you encounter any challenges while utilizing our SDKs, please don't hesitate to reach out for assistance. You can raise any issues by contacting your dedicated Codat representative or reaching out to our support team. We're here to help ensure a smooth experience for you.

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