# Safety information

### Secret key <a href="#secret-key" id="secret-key"></a>

Merchants apply `APP_ID` and `APP_SECRECT` which is very important. Do not display in any web code or url parameters.

### Interface security <a href="#interface-security" id="interface-security"></a>

The `IP white list` of the merchant can configure the application in the merchant backstage to prevent asset security problems caused by key leakage.

### HTTPS <a href="#https" id="https"></a>

API All interfaces are transmitted using the `HTTPS` encryption protocol, some interfaces need to be provided `notify_url & redirect_url`. It is recommended that merchants deploy `HTTPS` services to the server to ensure the security of data communication.


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