| Error Code | Error Msg | Meaning |
|---|---|---|
| 200 | ok | Success |
| 400 | request header param invalid | JSON request first layer parameter error |
| 400 | request data param invalid | Incorrect data field parameter in request JSON |
| 401 | token invalid | Token is invalid |
| 402 | query invalid | Request query param error |
| 429 | rate limit | Request frequency limit |
| 600 | code invalid | Request code product is invalid |
| 601 | body empty | The request message body data is empty |
| 603 | token level not enough | The number of requested products or the number of K lines is greater than the token permission |
| 604 | code unauthorized | Token does not have permission to request products |
| 605 | too many requests | Request frequency limit |