Add Gelato web3 function deployment script for redstone oracles

[Incede]

What was the problem?

This PR resolves LISK-1156

How was it solved?

Add script to deploy w3f code on IPFS

How was it tested?

yarn
cp .env.testnet .env
yarn w3f:deploy

[matjazv]

Will this URL be different than what is L2_RPC_URL? Can we just use L2_RPC_URL without having a new one?

[Incede]

In general it would be same. I am not sure where or which library picks this env var and we might have to change the lib code so maybe better to keep it separate (for now)

[matjazv]

Requirements are:

• Update LSK/USD and USDT/USD pairs if price deviation is more than 0.5%
• Update price every 6h if there is no price update before

[Incede]

Web3Function.onRun could be used to prevent price update (eg. if price deviation is less than 0.5%) but not sure if there is a way to trigger w3f from the code.

Gelato dashboard has the option to trigger w3f function based on time interval or onchain events. So one way to achieve the 1st bullet point would be deploy a contract that checks and compares the prices from our oracle and source and triggers an onchain event that could be consumed by Gelato API.

[matjazv]

Can't we use like it's currently implemented

const livePrice: BigNumber = await wrappedOracle.getLivePrice();
const storedPrice: BigNumber = await wrappedOracle.getStoredPrice();

to get live and stored price and compare them to see if update is needed?

For 6 hours interval, we'll probably need to store timestamp of last price update and compare it each time w3f is executed to check if it's more than 6 hours from last price update.

w3f will always be executed every 30 or 60 seconds (we still need to decide on this).

[Incede]

Okay I understand what you mean now. Your previous comment implied that the code must trigger w3f once certain conditions are met.

[matjazv]

W3f will be executed every 30 or 60 seconds.
Logic inside it which creates a transaction to update token pair price will be triggered when certain conditions are met.

[matjazv]

Should rm -rf node_modules && rm -rf dist still be present to be able to properly clean TS files?

[Incede]

We could keep rm -rf node_modules but there is no dist. A folder .tmp and yarn.lock are also generated as part of the process, should we remove them as part of clean too ?

[matjazv]

I think we should then remove node_modules and .tmp folders. Not sure if yarn.lock needs to be removed. Isn't it usually also commited and part of the repository?