Frequency User Data

On Frequency, User Data and select Announcements are mapped to Schemas which use Stateful Storage for storage and retrieval of the data.

User Data Sets

User Data Set	Schema Id Mainnet	Schema Id Rococo	Frequency Model Type	Frequency Payload Location	Settings
Public Follows	8	13	`AvroBinary`	`Paginated`	None
Private Follows	9	14	`AvroBinary`	`Paginated`	None
Private Connections	10	15	`AvroBinary`	`Paginated`	None

Pseudonymous Relationship Identifiers (PRIds) are stored along side Private Connections in the same Stateful Storage page.

Source code for each schema is located in the LibertyDSNP/schemas repository.

Announcement	Schema Id Mainnet	Schema Id Rococo	Frequency Model Type	Frequency Payload Location	Settings
Public Key	7	7 (v1.3.0+)	`AvroBinary`	`Itemized`	Append Only, Signature Required

Stateful data is retrieved via state queries (pallet.stateQuery) or RPC calls (pallet.rpcCall()).

Model Type	DSNP Properties	Query/Call
Itemized	Entity Tag	`stateful_storage.getItemizedStorage()`
Paginated	Entity Tag, Chunked	`stateful_storage.getPaginatedStorage()`

Write operations are via Transactions (also called Extrinsics): pallet::extrinsic()

Model Type	Operation	Pallet::Extrinsic
Itemized	Insert, Update, Delete	`stateful_storage::apply_item_actions()` `stateful_storage::apply_item_actions_with_signature()`
Paginated	Insert, Update	`stateful_storage::upsert_page()` `stateful_storage::upsert_page_with_signature()`
Paginated	Delete	`stateful_storage::delete_page()` `stateful_storage::delete_page_with_signature()`

Frequency requires the hash of current state for any Stateful Storage change.