BBSubscriptions

v1-contracts/contracts/BBSubscriptions.sol at main · backedby/v1-contractsGitHub

For each ERC20 token accepted by the protocol, there is a corresponding BBSubscriptions contract.

Functions

subscribe

function subscribe(
    uint256 profileId,
    uint256 tierId
) external payable returns (uint256 subscriptionId)

Create a subscription to a Profile at a specific Tier.

Parameters

Name	Type	Description
profileId	uint256	Profile to create a subscription to
tierId	uint256	Subscription Tier to subscribe to.

Return Values

Name	Type	Description
subscriptionId	uint256	The ID of the newly created subscription

unsubscribe

unsubscribe(
    uint256 profileId, 
    uint256 tierId
) external

Unsubscribe from a Profile

Name	Type	Description
profileId	uint256	Profile to unsubscribe from
tierId	uint256	Tier to unsubscribe from

checkUpkeep

function checkUpkeep(
    bytes calldata checkData
) external view override returns (bool, bytes memory)

Generate input for performUpkeep

Parameters

Name	Type	Description
checkData	bytes	api.encoded input

checkData Structure

abi.decode(checkData, (uint256, uint256, uint256, uint256, address))

Name	Type	Description
lowerBound	uint256	Starting subscriptionId to check for renewal
upperBoard	uint256	Ending subscriptionId to check for renewal
minRenews	uint256	Minimum number of renewals to find
maxRenews	uint256	Maximum number of renewals to find
refundReceiver	address	Account to receive the gas refund from performUpkeep.

Return Values

Name	Type	Description
upkeepNeeded	bool	Returns true if the number of subscriptions to renew is greater than minRenews.
performData	bytes	Data to pass thru to performUpkeep if upkeepNeeded is true.

performData Structure

abi.encode(renewIndexes, refundReceiver)

Name	Type	Description
renewIndexes	uint256[]	Subscription IDs to renew
refundReceiver	address	Account to send gas refund to

performUpkeep

function performUpkeep(
    bytes calldata renewalData
) external

PerformUpkeep is a standard AutomationCompatibleInterface function. Input can be automatically generated by the checkUpkeep() function or manually built.

Parameters

Name	Type	Description
renewalData	bytes	abi.encoded parameters

RenewalData Structure

abi.decode(renewalData, (uint256[], address))

Name	Type	Description
renewIndexes	uint256[]	Subscriber IDs to renew
refundReceiver	address	Address to send gas refund to

withdrawToTreasury

function withdrawToTreasury(
) public

Sends the ERC20 token balance the instance of BBSubscriptions handles to the treasury of the BBSubscriptionsFactory.

getSubscriptionFromProfile

function getSubscriptionFromProfile(
    uint256 profileId, 
    uint256 tierId, 
    address subscriber
) external view returns (uint256 subscriptionId, uint256 price, uint256 expiration, bool cancelled)

Get the subscription data on an account for a given profile and tier.

Parameters

Name	Type	Description
profileId	uint256	Profile to look at
tierId	uint256	Tier to look at
subscriber	address	Account to look for

Return Values

Name	Type	Description
subscriptionId	uint256	Subscription ID
price	uint256	Monthly price of subscription
expiration	uint256	Unix timestamp of the when the subscription will expire
cancelled	bool	Whether or not the subscription is cancelled

getSubscriptionFromId

function getSubscriptionFromId(
    uint256 subscriptionId
) external view returns (uint256 profileId, uint256 tierId, address subscriber, uint256 price, uint256 expiration, bool cancelled)

Get the details of a subscription based on an ID.

Parameters

Name	Type	Description
subscriptionId	uint256	ID of the subscription to return

Return Values

Name	Type	Description
profileId	uint256	ID of the profile
tierId	uint256	ID of the subscription tier
subscriber	address	Address of the subscriber
price	uint256	Monthly price of subscription
expiration	uint256	Unix timestamp of the when the subscription will expire
cancelled	bool	Whether or not the subscription is cancelled