Embedded accounting integrations for corporate card providers.
Expenses: The API for Codat's Expenses solution.
Expenses is an API and a set of supporting tools. It has been built to enable corporate card and expense management platforms to provide high-quality integrations with multiple accounting software through a standardized API.
Explore solution | See our OpenAPI spec
Not seeing the endpoints you're expecting? We've reorganized our solutions, and you may be using a different version of Expenses.
| Endpoints | Description |
|---|---|
| Companies | Create and manage your SMB users' companies. |
| Connections | Create new and manage existing data connections for a company. |
| Configuration | View and manage mapping configuration and defaults for expense transactions. |
| Sync | Monitor the status of data syncs. |
| Expenses | Create and update transactions that represent your customers' spend. |
| Transfers | Create and update transactions that represent the movement of your customers' money. |
| Reimbursements | Create and update transactions that represent your customers' repayable spend. |
| Attachments | Attach receipts to a transaction for a complete audit trail. |
| Transaction status | Monitor the status of individual transactions in data syncs. |
| Manage data | Control and monitor the retrieval of data from an integration. |
| Push operations | View historic push operations. |
| Accounts | Create accounts and view account schemas. |
| Customers | Get, create, and update customers. |
| Suppliers | Get, create, and update suppliers. |
To add the NuGet package to a .NET project:
dotnet add package Codat.Sync.ExpensesTo add a reference to a local instance of the SDK in a .NET project:
dotnet add reference Codat/Sync/Expenses/Codat.Sync.Expenses.csprojusing Codat.Sync.Expenses;
using Codat.Sync.Expenses.Models.Components;
using Codat.Sync.Expenses.Models.Requests;
var sdk = new CodatSyncExpenses(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 responseAvailable methods
- Create - Create account
- GetCreateModel - Get create account model
- Create - Create adjustment transaction
- Upload - Upload attachment
- Create - Create bank account
- GetCreateModel - Get create bank account model
- List - List companies
- Create - Create company
- Replace - Replace company
- Update - Update company
- Delete - Delete a company
- Get - Get company
- Get - Get company info
- List - List connections
- Create - Create connection
- Get - Get connection
- Delete - Delete connection
- Unlink - Unlink connection
- CreatePartnerExpenseConnection - Create partner expense connection
- RefreshAllDataTypes - Refresh all data
- Get - Get data status
- RefreshDataType - Refresh data type
- ListPullOperations - List pull operations
- GetPullOperation - Get pull operation
- GetMappingOptions - Mapping options
- GetLastSuccessfulSync - Last successful sync
- GetLatestSync - Latest sync status
- List - List sync statuses
- Get - Get sync status
- Create - Create transfer transaction
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.Expenses;
using Codat.Sync.Expenses.Models.Components;
using Codat.Sync.Expenses.Models.Requests;
var sdk = new CodatSyncExpenses(
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 responseThis 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.Expenses;
using Codat.Sync.Expenses.Models.Components;
using Codat.Sync.Expenses.Models.Requests;
var sdk = new CodatSyncExpenses(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 responseSome 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.Expenses;
using Codat.Sync.Expenses.Models.Components;
using Codat.Sync.Expenses.Models.Requests;
var sdk = new CodatSyncExpenses(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 responseIf 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.Expenses;
using Codat.Sync.Expenses.Models.Components;
using Codat.Sync.Expenses.Models.Requests;
var sdk = new CodatSyncExpenses(
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 responseCodatSyncExpensesException 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.
using Codat.Sync.Expenses;
using Codat.Sync.Expenses.Models.Components;
using Codat.Sync.Expenses.Models.Errors;
using Codat.Sync.Expenses.Models.Requests;
var sdk = new CodatSyncExpenses(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 (CodatSyncExpensesException ex) // all SDK exceptions inherit from CodatSyncExpensesException
{
// 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
}Primary exceptions:
CodatSyncExpensesException: The base class for HTTP error responses.ErrorMessage: Yourqueryparameter was not correctly formed.
Less common exceptions (2)
-
System.Net.Http.HttpRequestException: Network connectivity error. For more details about the underlying cause, inspect theex.InnerException. -
Inheriting from
CodatSyncExpensesException:ResponseValidationError: Thrown when the response data could not be deserialized into the expected type.
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.Expenses;
using Codat.Sync.Expenses.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 CodatSyncExpenses(client: customHttpClient);You can also provide a completely custom HTTP client with your own configuration:
using Codat.Sync.Expenses.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 = CodatSyncExpenses.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 CodatSyncExpenses(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.
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.