Deposit ERC20

Deposit ERC20 from Ethereum L1 to Loopring L2
This action will require a gas fee for interacting with Ethereum Layer1, please be sure the account used has enough ETH to perform the action. 

Be aware there is a slight difference in processes to deposit ETH versus ERC20 tokens.
All Deposit Methods: Users should have enough ETH to pay for the Ethereum Gas fee (Loopring does not charge a fee for Deposit).
Provider will give the Gas Price & Limit. SDK will also have a method to get the gasPrice: const gasPrice = (await LoopringAPI.exchangeAPI.getGasPrice() ).gasPrice;
Depositing ETH
Step 1: Get nonce
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const nonce = await sdk.getNonce(web3, LOOPRING_EXPORTED_ACCOUNT.address);
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console.log(
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  `deposit: ${TOKEN_INFO.tokenMap.ETH.symbol}-${LOOPRING_EXPORTED_ACCOUNT.tradeETHValue}, gasPrice: ${LOOPRING_EXPORTED_ACCOUNT.gasPrice}, `
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);
Step 2: Deposit
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const response = await sdk.deposit(
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  web3,
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  LOOPRING_EXPORTED_ACCOUNT.address,
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  LOOPRING_EXPORTED_ACCOUNT.exchangeAddress,
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  TOKEN_INFO.tokenMap.ETH,
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  LOOPRING_EXPORTED_ACCOUNT.tradeETHValue,
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  0,
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  LOOPRING_EXPORTED_ACCOUNT.gasPrice,
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  LOOPRING_EXPORTED_ACCOUNT.gasLimit,
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  sdk.ChainId.GOERLI,
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  nonce,
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  true
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);
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​
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console.log(`nonce: ${nonce} deposit_ETH: `, response);
​
Depositing ERC20 Tokens
Step 1: Get allowances
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const {tokenAllowances} = await LoopringAPI.exchangeAPI.getAllowances({
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  owner: LOOPRING_EXPORTED_ACCOUNT.address,
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  token: [TOKEN_INFO.tokenMap.LRC.address],
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});
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if (
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  tokenAllowances.has(TOKEN_INFO.tokenMap.LRC.address) &&
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  Number(tokenAllowances.get(TOKEN_INFO.tokenMap.LRC.address)) <
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  LOOPRING_EXPORTED_ACCOUNT.tradeLRCValue
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) {
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  const nonce = await web3.eth.getTransactionCount(
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    LOOPRING_EXPORTED_ACCOUNT.address
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  );
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  await sdk.approveMax(
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    web3,
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    LOOPRING_EXPORTED_ACCOUNT.address,
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    TOKEN_INFO.tokenMap.LRC.address, // LRC address  {tokenIdMap} = getTokens();  tokenIdMap['LRC']
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    LOOPRING_EXPORTED_ACCOUNT.depositAddress, //{exchangeInfo} = getExchangeInfo()  exchangeInfo.depositAddress
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    LOOPRING_EXPORTED_ACCOUNT.gasPrice,
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    LOOPRING_EXPORTED_ACCOUNT.gasLimit,
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    sdk.ChainId.GOERLI,
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    nonce,
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    true
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  );
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}
Step 2: Get nonce
1
tyconst nonce = await sdk.getNonce(web3, LOOPRING_EXPORTED_ACCOUNT.address);
2
console.log(
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  `deposit: ${TOKEN_INFO.tokenMap.LRC.symbol}-${LOOPRING_EXPORTED_ACCOUNT.tradeLRCValue}, gasPrice: ${LOOPRING_EXPORTED_ACCOUNT.gasPrice}, `
4
);
Step 3: Deposit
1
const response = await sdk.deposit(
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  web3,
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  LOOPRING_EXPORTED_ACCOUNT.address,
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  LOOPRING_EXPORTED_ACCOUNT.exchangeAddress,
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  TOKEN_INFO.tokenMap.LRC,
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  sdk
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    .toBig(LOOPRING_EXPORTED_ACCOUNT.tradeLRCValue)
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    .div("1e" + TOKEN_INFO.tokenMap.LRC.decimals)
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    .toNumber(),
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  0,
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  LOOPRING_EXPORTED_ACCOUNT.gasPrice,
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  LOOPRING_EXPORTED_ACCOUNT.gasLimit,
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  sdk.ChainId.GOERLI,
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  nonce,
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  true
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);
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​
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console.log(`nonce: ${nonce}  deposit_LRC: `, response);
Withdraw ERC20
Order ERC20
Last modified 6mo ago
Deposit ERC20

Depositing ETH

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Depositing ERC20 Tokens
