Deploy NFT

Construct a transfer to Layer 2 broker and trigger deployment of tokenAddress in Layer 1

Step 1: Get Account

Prepare Loopring Layer 2 account. Retrieve account information.

const {accInfo} = await LoopringAPI.exchangeAPI.getAccount({
  owner: LOOPRING_EXPORTED_ACCOUNT.address,
});
console.log("accInfo:", accInfo);

Step 2: Get eddsaKey

Generate EdDSA key.

const eddsaKey = await signatureKeyPairMock(accInfo);
console.log("eddsaKey:", eddsaKey.sk);

Step 3: Get apiKey

Retrieve the account's API key.

const {apiKey} = await LoopringAPI.userAPI.getUserApiKey(
  {
    accountId: accInfo.accountId,
  },
  eddsaKey.sk
);
console.log("apiKey:", apiKey);

Step 4: Get fee

Get deploy tokenAddress fee and set the transfer token amount.

const fee = await LoopringAPI.userAPI.getNFTOffchainFeeAmt(
  {
    accountId: accInfo.accountId,
    requestType: sdk.OffchainNFTFeeReqType.NFT_DEPLOY,
    amount: "0",
  },
  apiKey
);
console.log(fee);

Step 5: Get storageId

Get transfer token tokenId's storageId. Using "LRC" as an example:

 const storageId = await LoopringAPI.userAPI.getNextStorageId(
  {
    accountId: accInfo.accountId,
    sellTokenId: TOKEN_INFO.tokenMap["LRC"].tokenId, // same as Step 7. transfer->token->tokenId
  },
  apiKey
);

Step 6: Get broker

Get Loopring Layer 2 broker and set to payeeAddr of transfer

const {broker} = await LoopringAPI.exchangeAPI.getAvailableBroker();

Step 7: Build Transfer and deploy

const transfer = {
  exchange: LOOPRING_EXPORTED_ACCOUNT.exchangeAddress,
  payerAddr: LOOPRING_EXPORTED_ACCOUNT.address,
  payerId: LOOPRING_EXPORTED_ACCOUNT.accountId,
  payeeAddr: broker,
  // payeeAddr: LOOPRING_EXPORTED_ACCOUNT.address2,
  storageId: storageId.offchainId,
  token: {
    tokenId: TOKEN_INFO.tokenMap["LRC"].tokenId,
    volume: fee.fees["LRC"].fee ?? "9400000000000000000",
  },
  validUntil: LOOPRING_EXPORTED_ACCOUNT.validUntil,
};
const response = await LoopringAPI.userAPI.submitDeployNFT({
  request: {
    transfer,
    tokenAddress: LOOPRING_EXPORTED_ACCOUNT.nftTokenAddress,
    nftData: LOOPRING_EXPORTED_ACCOUNT.nftData,
  },
  web3,
  chainId: sdk.ChainId.GOERLI,
  walletType: sdk.ConnectorNames.Unknown,
  eddsaKey: eddsaKey.sk,
  apiKey: apiKey,
});

console.log(response);

Congratulations! You have successfully deployed your Counterfactual NFT!