Custom Http Headers
Cardlytics Ad Server APIs support custom http headers for all endpoints.
Custom Headers
| Header | Description |
|---|---|
| X-CDLX-Session | Client can send its customized client session id using this header and it is limited to 512 bytes, if exceed 512 bytes it will be automatically truncated to 512 bytes |
| X-CDLX-Meta | Client can send its client metadata information using this header and it is limited to 512 bytes, if exceed 512 bytes it will be automatically truncated to 512 bytes |
How these headers will be used:
- Custom headers are optional. No back-compatible issue for old versions.
- 'X-CDLX-Session' header is provided to help client to debugging the request failure since it will be embedded in the API response error message there if exception happens.
- 'X-CDLX-Meta' header is provided to help client to have a place to send over more client specific meta info related to the request so it will be helpful for future investigation if needed.