The Invoice API will respond with following HTTP status codes if an error occurs while processing your request. We expect the client code to catch these errors with a fallback mechanism.
| Parameter | Description |
|---|---|
| 401 | Access Denied – User is not authenticated. Please check whether you passed the correct api_token with your request. |
| 403 | Permission is denied. This might happen if you try to access resources that the user does not have permission to access. |
| 422 | Bad Request – The request is not correctly formatted or is missing some parameters. Verify whether you have properly constructed the XML or JSON request and have included all the required parameters. |
| 404 | Not Found – The endpoint you trying to access does not exist. |
| 500 | Server Error – Something is wrong with the server. Try again in a couple of minutes and if it's a recurring error, please contact InvoiceApp Support. |
We are constantly working to improve and extend our API functionalities. We can't wait to see what you do with it. Need help or have a feedback? Contact us on support@invoice.ng
Content type for responses will always be application/json. |
Use HTTPS only! Any HTTP requests will be ignored. |
On a successful request of access token, remember to put the authorization token in all your request headers!. |
The Invoice API uses the |
All usage of the Invoice website API, and services is subject to the company's terms and conditions and all annexed legal documents and agreements.
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