~~NOTOC~~
[[server_api]] > [[BS2_SetServerMatchingHandler]]

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===== BS2_SetServerMatchingHandler =====
Registers callback functions that can distinguish whether the card, fingerprint, user ID corresponds.\\ 
==== Declaration ====
<code cpp>
#include "BS_API.h"

int BS2_SetServerMatchingHandler(void* context, OnVerifyUser ptrVerifyUser, OnIdentifyUser ptrIdentifyUser);
</code>
==== Parameter ====
  * [In] ''//context//'' : Context
  * [In] ''//ptrVerifyUser//'' : Callback function that is called when the user information mapped to the card or user ID is required from the device
  * [In] ''//ptrIdentifyUser//'' : Callback function that is called when the user information mapped to the fingerprint is required from the device
<WRAP indent>
<WRAP info 70%>
**NOTE**\\
To use the server matching service, the [[configuration api#BS2AuthConfig|BS2AuthConfig]]'s useServerMatching should be set as true. 
</WRAP>
</WRAP>
==== Return Value ====
If successfully done, ''BS_SDK_SUCCESS'' will be returned. \\
If there is an error, the corresponding error code will be returned.
==== See Also ====
[[BS2_VerifyUser]]\\ [[BS2_IdentifyUser]]