A place for developers to talk about building on Farcaster.

/dev

SOLIDITY ADVICE REQUEST

 I want to calculate the interest rate for a token with a fluctuating market price given by a bonding curve. 

Currently, i timestamp the price whenever it changes and append into an array; any ideas on strategies that avoid this kind of state bloat?

Why does the rate need to be onchain? Otherwise store the observation in a mapping as you avoid gas overhead for checking array length validity in solidity

Semi centralized, push up the update with a signature, verify that the sig is valid. And have a server that can sign these messages

How would i safely store timestamped price changes off chain? How could the contract verify.