Relations Modules

How to establish the relationship index

As the on-chain storage fee is taken into consideration, the complete relationship network isn’t stored on-chain, and it needs to be figured out off-chain. Given that 5Degrees completely follows the EIP-1155 protocol, we can quickly index data through TransferSingle and TransferBatch to establish complete relationship network data.

TransferSingle()

event TransferSingle(address indexed operator, address indexed from, 
address indexed to, uint256 id, uint256 value)

Parameter Name	Type	Description
operator	address	operator of transaction
from	address	Profile NFT old owner
to	address	Profile NFT new owner
id	uint256	Profile NFT ID
value	uint256	Profile NFT value

While mint (the follow action), parameter from is address(0), to is follower address, id is serialization of the address being followed.

While burn (the unfollow action), parameter from is follower's address, to is address(0), id is serialization of the address being followed.

eg: value always 1

TransferBatch()

event TransferBatch(address indexed operator, address indexed from, 
address indexed to, uint256[] ids, uint256[] values)

Parameter Name	Type	Description
operator	address	operator of transaction
from	address	Profile NFT old owner
to	address	Profile NFT new owner
ids	uint256[]	Profile NFT ID's list
values	uint256[]	Profile NFT ID value's list

ids is a set of serializations of addresses being followed.