useCreateOffer

import { CreateOfferStep, useCreateOffer } from '@liteflow/react'
import { BigNumber } from 'ethers'
 
export default function Component() {
  const signer = undefined // type of "Signer & TypedDataSigner" Get the signer from the wallet. Need to be an Ethers Signer (https://docs.ethers.io/v5/api/signer/)
  const [createOffer, { activeStep, transactionHash }] = useCreateOffer(signer)
 
  const handleClick = async () => {
    await createOffer({
      type: 'BUY',
      chain: 56,
      collection: '0x1e4fc916afcf548a2e62c5865fefe2069755a3a3',
      token:
        '26744308925107717638226399784052410886289158766077164738526328260523943400243',
      quantity: BigNumber.from(1), // Quantity of asset to offer. Must be 1 for offer on ERC721. Use BigNumber
      unitPrice: {
        amount: BigNumber.from(1).mul(BigNumber.from(10).pow(18)), // this value is in base unit of the token. This is equivalent to 1 ETH. Use BigNumber
        currency: '0x19a4866a85c652eb4a2ed44c42e4cb2863a62d51', // Currency address
      },
      taker: '0x0123456789012345678901234567890123456789',
      expiredAt: new Date('2024-01-01'),
    })
  }
 
  return (
    <>
      {activeStep === CreateOfferStep.INITIAL && (
        <button onClick={handleClick}>Create Offer</button>
      )}
      {activeStep === CreateOfferStep.APPROVAL_SIGNATURE && (
        <p>Please sign message in wallet</p>
      )}
      {activeStep === CreateOfferStep.APPROVAL_PENDING && (
        <p>Message signature is pending</p>
      )}
      {activeStep === CreateOfferStep.SIGNATURE && (
        <p>Signature is being asked</p>
      )}
      {transactionHash && <p>Transaction hash is {transactionHash}</p>}
    </>
  )
}

useCreateOffer(
  signer: Signer | undefined, // Ethers signer: https://docs.ethers.io/v5/api/signer/
)

;[
  (data: {
    type: OfferType
    chain: ChainId
    collection: Address
    token: string
    quantity: BigNumber
    unitPrice: {
      amount: BigNumberish
      currency: Address | null
    }
    taker?: Address
    expiredAt?: Date
    metadata?: Record<string, unknown>
  }) => Promise<string>, // createOffer. function to create an Offer
  {
    activeStep: CreateOfferStep, // returns different values depending on the current creation step
    transactionHash: string | undefined, // returns the transaction hash after transaction has been placed on the blockchain
  },
]

{
  type: OfferType,         // "BUY" or "SALE" enum see OfferType
  chain: ChainId,          // Chain ID
  collection: Address,     // Collection address
  token: string,           // Token id
  quantity: BigNumber,     // Quantity of asset to offer. Must be 1 for offer on ERC721. Use BigNumber
  unitPrice: {
    amount: BigNumber,          // Price per NFT unit, the price is in the token unit (e.g: Ethereum's WEI) therefore needs to be a BigNumber
    currency: Address | null,   // Currency address, set `null` for native token
  },
  taker?: Taker,      // Optional, wallet address of the offer's receiver. This allows to create an offer that only a specific wallet can accept.
  expiredAt?: Date,   // Optional date at which the offer expired. If not set, the API will enforce one.
  metadata?: Record<string, unknown>  // Optional, payload to save alongside the offer
}

enum CreateOfferStep {
  INITIAL, // Default
  APPROVAL_SIGNATURE, // Message signature has been initiated
  APPROVAL_PENDING, // Message signature is pending
  SIGNATURE, // Signature is being asked
}