Handling of bonding keys

[Sawada]

I don't know how to manage the Bonding key.
I confirmed the following sequence, but it is abbreviated as "Keys stored in keyset". At what timing and how should I get and save the Bonding key?
infocenter.nordicsemi.com/index.jsp

I can understand that the following functions are related, but I'm not sure exactly when to execute which function.
-pm_peer_new()
-pm_peer_delete()
-pm_peer_data_app_data_store()
-pm_peer_data_app_data_load()
-pm_peer_data_app_bonding_store()
-pm_peer_data_app_bonding_load()

[Turbo J]

Sawada said:

I can understand that the following functions are related, but I'm not sure exactly when to execute which functio

You don't.

Look at how peer manager is integrated in the SDK examples - it does the key handling on its own.

[Mttrinh]

Yes, the bonding and key handling will be done automatically by the Peer Manager. 

You can take a look at the Heart Rate example or HID Keyboard example.