My_Learning_DeFi

My learning about DeFi

Books

In DeFi smart contracts, the data is stored on-chain for data persistence required for financial computations.
But, this can be achieved by either of the two ways:
1. Minimalistic storage with loops during calculations like average price.
2. Maximalistic storage with no use of loops during such calculations as the count, & the total amount is also stored.
In both the methods there are cons. As a matter of fact, the 2nd method is normally chosen.
But, this has led to expensive scenarios like Chainlink paying 100k USD as gas fees per day.
In order to avoid this, off-chain storage could be a solution, but it is not secure as the data won't be immutable.
Hence, there is a new upcoming solution provided by Arweave Blockchain. This has permanent storage. And fetching data from here is absolute free without any API key requirement. The fee is paid one-time which gives storage for almost 100 years. The data (like price) is stored via Arweave smart contracts.
Have a look at how to access the price here.

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