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Typescript

Describes how to use code to enter and exit USYC
import { Address, erc20ABI, writeContract } from '@wagmi/core'
const USYC_TELLER_ABI = [
{
inputs: [{ internalType: 'uint256', name: '_amount', type: 'uint256' }],
name: 'sell',
outputs: [{ internalType: 'uint256', name: '', type: 'uint256' }],
stateMutability: 'nonpayable',
type: 'function',
},
{
inputs: [{ internalType: 'uint256', name: '_amount', type: 'uint256' }],
name: 'buy',
outputs: [{ internalType: 'uint256', name: '', type: 'uint256' }],
stateMutability: 'nonpayable',
type: 'function',
},
] as const
// Addresses on Ethereum Mainnet
const USYC_TELLER_ADDRESS: Address = '0xAAF405C48e8c73aECedA3E40fE34e5C0ff8f5DE5'
const USDC_ADDRESS: Address = '0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48'
const USYC_ADDRESS: Address = '0x136471a34f6ef19fE571EFFC1CA711fdb8E49f2b'
// Quantities
const ONE_HUNDRED_USDC = BigInt(100_000000) // USDC decimals=6
const ONE_HUNDRED_USYC = BigInt(100_000000) // USYC decimals=6
// BUY USYC
export const approveUSYCTellerToSpendUSDC = () =>
writeContract({
chainId: 1,
address: USDC_ADDRESS,
abi: erc20ABI,
functionName: 'approve',
args: [USYC_TELLER_ADDRESS, ONE_HUNDRED_USDC],
})
export const buyUSYC = () =>
writeContract({
address: USYC_TELLER_ADDRESS,
chainId: 1,
abi: USYC_TELLER_ABI,
functionName: 'buy',
args: [ONE_HUNDRED_USDC],
})
// Sell USYC
export const approveUSYCTellerToSpendUSYC = () =>
writeContract({
chainId: 1,
address: USYC_ADDRESS,
abi: erc20ABI,
functionName: 'approve',
args: [USYC_TELLER_ADDRESS, ONE_HUNDRED_USYC],
})
export const sellUSYC = () =>
writeContract({
address: USYC_TELLER_ADDRESS,
chainId: 1,
abi: USYC_TELLER_ABI,
functionName: 'sell',
args: [ONE_HUNDRED_USYC],
})