Common Request Headers and Response Headers
Updated at：2025-10-20
Common request headers
| Common headers | Description |
|---|---|
| Authorization | Include Access Key and request signature. For details, refer to [Certification](Reference/Authentication mechanism/Introduction.md). |
| Content-Type | application/json; charset=utf-8 |
| x-bce-date | A string representing the date, compliant with API specifications. Refer to [Date and Time Format](BCC/API Reference/General Description.md#Date and time regulations) |
The standard HTTP protocol header fields are not listed here. Common header fields appear in every BCC API and are mandatory. Request data for POST, PUT, DELETE, and other methods must be placed in the request body.
Common response headers
| Common headers | Description |
|---|---|
| Content-Type | application/json; charset=utf-8。 |
| x-bce-request-id | These are generated by the BCC backend and automatically added to the response header fields. |
The x-bce-request-id is generated by the BCC service using UUID version 4.