FrameDataStore

An immutable on-chain key-value data store that holds browser code.

Functions

saveData

Stores data for a key at a specific page number. Pages cannot be overwritten if data already exists.

function saveData(
        string memory _key,
        uint128 _pageNumber,
        bytes memory _b
) external

Parameters

Name	Type	Description
_key	string	Key to save new data to
_pageNumber	uint128	The page number to save to
_b	bytes	The data

getSizeBetweenPages

Returns the byte size of data stored between two pages for a given key.

function getSizeBetweenPages(
        string memory _key,
        uint256 _startPage,
        uint256 _endPage
) external view returns (uint256)

Parameters

Name	Type	Description
_key	string	Key to query
_startPage	uint256	Start page
_endPage	uint256	End page

Return Values

Type	Description
uint256

getMaxPageNumber

Returns the maximum page number that exist for a key.

function getMaxPageNumber(string memory _key) external view returns (uint256)

Parameters

Name	Type	Description
_key	string	Key to query

Return Values

Type	Description
uint256	The highest page number that contains data

getAllDataFromPage

Get all data stored at a key starting from a specific page.

function getAllDataFromPage(
        string memory _key,
        uint256 _startPage
) external view returns (bytes memory)

Parameters

Name	Type	Description
_key	string	Key to query
_startPage	uint256	Get all data starting at this page

Return Values

Type	Description
bytes	The data

hasKey

Returns true if a key exists in the data store.

function hasKey(string memory _key) external view returns (bool)

Parameters

Type
string	Key to query

Return Values

Type
bool

lock

Disables the ability to call saveData.

function lock() external