ankitpal1029 / Arda-task

Setting up

• make a copy of .env.example rename it to .env and fill the fields.
• do yarn
• initialize database: yarn knex migrate:latest
• yarn start

Use index.js in client-reference to make calls to the api.

Side note

I tried populating the transaction on the server side and get it signed on the client but for some reason this didn't work.

Token Addresses i've used: YANGIT_ERC20=0xC77f633E052077924f3fA224522e350229361770 ANOTHER_ERC20=0xdB95f9A0075DFCd1508ddb504Db3E9E4cFB1662A Address that gave the approvals=0x657D3C03e450E4815f3411Aa26713A2A90e9Ad83

TASK

The goal is to expose a couple of APIs that do the following:

Allowance API

1. Takes an address as the input
2. Return the set of ERC20 allowances that the address has provided

Implementation

We can use public RPC providers like Ankr to make the smart contract read calls. The solution space of the supported number of ERC20 addresses can be constrained.

Update Allowance API

1. Sets the allowances the address had provided, back to 0

Implementation

This involves investigation of how to set the allowances in a non-custodial way. Testing on Goerli should also be okay for this.