Order ERC20

Demo for making an immediate swap

Mini-order

To support small quantity trading, we introduce an additional concept tradeCost, which is the minimum gas fee when a trade transaction is uplink to Ethereum.

Let's take LRC-ETH trading as an example.

Below are the steps:

Query `api/v3/exchange/tokens` to get the dust value of orderAmounts for both LRC and ETH

The dust value is the minimum value to pass Relayer check. Any amount less than "dust" can't be traded.

In this case, we will get both minTokenLRC and minTokenETH after getting dust value.

If a user wants to convert LRC to ETH, the set LRC amount can't be less than minTokenLRC and the converted ETH amount can't be less than minTokenETH.

Query api/v3/user/orderUserRateAmount to get the tradeCost value

The parameters to call this interface are accountId and market=LRC-ETH.

In this example, we will get two tradeCost values for LRC and ETH as tradeCostLRC and tradeCostETH.

Caculate minCostLRC and minCostETH as below

minCostLRC = max(minTokenLRC, tradeCostLRC/maxAllowBips)
minCostETH = max(minTokenETH, tradeCostETH/maxAllowBips)

Caculate the cost by considering slippage

minCostLRCSlip = minCostLRC/(1-slippage)
minCostETHSlip = minCostETH/(1-slippage)

Cacluate the minimum quantity user has to set

tradeCostSellLRC = max(tradeCostSellLRC, minTokenLRC) * 1.1
tradeCostSellETH = max(tradeCostSellETH, minTokenETH) * 1.1

Here we add additonally 10% tolerance.

Caculate the previous minimum token amount per calling `api/v3/user/orderUserRateAmount` (existing logic)

This is the threshold to distinguish small quantity trading and normal trading. We will get two values (configSellLRC and configSellETH) which are used for previous trading quantity limit (Per USD 100) caculation.

Caculate the new maxFeeBips and start trading

Let's take LRC->ETH as the example. User inputs the amount of LRC to convert, amount = sellLRC

if sellLRC >= configSellLRC then 
	// Normal trading case, stay with previous logic
	maxFeeBips=63 (the default value for maxFeeBips)
	Trade 
else if sellLRC < tradeCostSellLRC then 
	// Really too small to support
	Prompt user the amount is too small to support
	Exit
else 
	// This is what we call as small quantity 
	costRate = Ceil(tradeCostETH/minbuyETH) 
	maxFeeBips = max(costRate, takerRate)
	Trade 
End If

Price impact update

sellTokenMinAmount = baseOrderInfo.minAmount from LoopringAPI.userAPI.getMinimumTokenAmt({accountId,marke}, apiKey)
{output} from sdk.getOutputAmount(input: sellTokenMinAmount, isAtoB: isAtoB,…}).output
PriceBase = output / sellTokenMinAmount
tradePrice = calcTradeParams.minReceive / userInputSell
priceImpact = 1 - tradePrice/PriceBase - 0.005
If priceImpact < 0 priceImpact = 0 Else priceImpact

LRC-ETH : for Base to Quote

An example swap of ETH into LRC.

Calculate swap function

const calculateSwap = (
  sellSymbol = "LRC",
  buySymbol = "ETH",
  isInputSellToBuy: boolean,
  inputValue: number, // user Input value no decimal,
  _slippage = 0.1,
  // MOCK value
  amountMap: { [key: string]: any } = userAmount,
  market: string = deepMock.symbol,
  // close = ticker.tickers[7],
  depth: any = deepMock,
  ammPoolSnapshot: sdk.AmmPoolSnapshot = ammPoolSnapshotMock,
  tokenMap: sdk.LoopringMap<sdk.TokenInfo> = TokenMapMockSwap,
  ammMap: { [key: string]: any } = AMM_MAP
) => {
  let calcFor100USDAmount, calcForMinCost, calcForPriceImpact;
  if (depth && market && tokenMap) {
    const sellToken = tokenMap[sellSymbol];
    const buyToken = tokenMap[buySymbol];
    const isInputSellOutputBuy = isInputSellToBuy;
    let input: any = inputValue;

    console.log(
      "sellToken: Symbol ",
      sellSymbol,
      "buyToken: Symbol",
      buySymbol,
      "is Input Sell Output Buy:",
      isInputSellOutputBuy,
      "input value",
      input
    );
    input = input === undefined || isNaN(Number(input)) ? 0 : Number(input);
    let slippage = sdk.toBig(_slippage).times(100).toString();
    let totalFee = undefined;
    let feeTakerRate = undefined;
    let feeBips = undefined;
    let takerRate = undefined;
    let buyMinAmtInfo = undefined;
    let sellMinAmtInfo = undefined;
    let tradeCost = undefined;
    let basePrice = undefined;
    let maxFeeBips = MAPFEEBIPS;
    let minAmt = undefined;

    if (amountMap && amountMap[market] && ammMap) {
      console.log(`amountMap[${market}]:`, amountMap[market]);

      const ammMarket = `AMM-${market}`;

      const amountMarket = amountMap[market]; // userAmount from  LRC-ETH(Market)

      buyMinAmtInfo = amountMarket[buySymbol];
      sellMinAmtInfo = amountMarket[sellSymbol];
      console.log(
        `buyMinAmtInfo: ${market}, ${buySymbol}`,
        buyMinAmtInfo,
        `sellMinAmtInfo: ${market}, ${sellSymbol}`,
        sellMinAmtInfo
      );

      feeBips = ammMap[ammMarket] ? ammMap[ammMarket].feeBips : 1;

      feeTakerRate =
        amountMarket[buySymbol] &&
        amountMarket[buySymbol].userOrderInfo.takerRate;
      tradeCost = amountMarket[buySymbol].tradeCost;

      /** @description for charge fee calc, calcFor100USDAmount
       *  Loopring market consider buyToken value small then  max(buyMinAmtInfo.userOrderInfo.minAmount,buyToken.orderAmounts.dust) is a small order,
       * the fee will take the Max(tradeCost,userTakeRate)
       * use the buyMinAmount Input calc the selltoken value,
       * please read Line:321
       * **/
      const minAmountInput = BigNumber.max(
        buyMinAmtInfo.userOrderInfo.minAmount,
        buyToken.orderAmounts.dust
      )
        .div(sdk.toBig(1).minus(sdk.toBig(slippage).div(10000)))
        .div("1e" + buyToken.decimals)
        .toString();
      calcFor100USDAmount = sdk.getOutputAmount({
        input: minAmountInput,
        sell: sellSymbol,
        buy: buySymbol,
        isAtoB: false,
        marketArr: marketArray as string[],
        tokenMap: tokenMap as any,
        marketMap: marketMap as any,
        depth,
        ammPoolSnapshot: ammPoolSnapshot,
        feeBips: feeBips ? feeBips.toString() : 1,
        takerRate: "0",
        slipBips: slippage,
      });

      console.log(
        "buyMinAmtInfo.userOrderInfo.minAmount:",
        buyMinAmtInfo.userOrderInfo.minAmount,
        `buyMinAmtInfo.userOrderInfo.minAmount, with slippage:${slippage}`,
        sdk
          .toBig(buyMinAmtInfo.userOrderInfo.minAmount)
          .div(sdk.toBig(1).minus(sdk.toBig(slippage).div(10000)))
          .toString()
      );

      /*** calc for Price Impact ****/
      const sellMinAmtInput = sdk
        .toBig(sellMinAmtInfo.baseOrderInfo.minAmount)
        .div("1e" + sellToken.decimals)
        .toString();

      calcForPriceImpact = sdk.getOutputAmount({
        input: sellMinAmtInput,
        sell: sellSymbol,
        buy: buySymbol,
        isAtoB: true,
        marketArr: marketArray as string[],
        tokenMap: tokenMap as any,
        marketMap: marketMap as any,
        depth,
        ammPoolSnapshot: ammPoolSnapshot,
        feeBips: feeBips ? feeBips.toString() : 1,
        takerRate: "0",
        slipBips: "10",
      });

      basePrice = sdk.toBig(calcForPriceImpact?.output).div(sellMinAmtInput);

      console.log(
        "calcForPriceImpact input: ",
        sellMinAmtInput,
        ", output: ",
        sdk.toBig(calcForPriceImpact?.output).div(sellMinAmtInput).toNumber(),
        ", calcForPriceImpact:",
        calcForPriceImpact?.amountBOutSlip?.minReceivedVal,
        ", calcForPriceImpact basePrice: ",
        basePrice.toNumber()
      );

      /**** calc for mini Cost ****/

      //minCostBuyToken = max(dustBuyToken, tradeCostETH/maxAllowBips)
      const dustToken = buyToken;
      let minCostBuyTokenInput = BigNumber.max(
        sdk.toBig(tradeCost).times(2), //maxAllowBips = 50% tradeCostETH/50%
        dustToken.orderAmounts.dust
      );

      const tradeCostInput = sdk
        .toBig(minCostBuyTokenInput)
        .div(sdk.toBig(1).minus(sdk.toBig(slippage).div(10000)))
        .div("1e" + dustToken.decimals)
        .toString();

      console.log(
        `tradeCost: ${tradeCost}*2:`,
        sdk.toBig(tradeCost).times(2).toString(),
        "buyToken.orderAmounts.dust",
        buyToken.orderAmounts.dust,
        "minCostBuyToken:",
        minCostBuyTokenInput.toString(),
        `calcForMinCostInput, with slippage:${slippage}`,
        sdk
          .toBig(minCostBuyTokenInput ?? 0)
          .div(sdk.toBig(1).minus(sdk.toBig(slippage).div(10000)))
          .toString(),
        "calcForMinCost, Input",
        tradeCostInput
      );

      calcForMinCost = sdk.getOutputAmount({
        input: tradeCostInput,
        sell: sellSymbol,
        buy: buySymbol,
        isAtoB: false,
        marketArr: marketArray as string[],
        tokenMap: tokenMap as any,
        marketMap: marketMap as any,
        depth,
        ammPoolSnapshot: ammPoolSnapshot,
        feeBips: feeBips ? feeBips.toString() : 1,
        takerRate: "0",
        slipBips: slippage,
      });

      //add additionally 10% tolerance for minimum quantity user has to set on sell Token
      /**
       * @output: minAmt for UI
       * this value mini-order Sell token amount (show on the UI for available order check)
       * setSellMinAmt(minAmt.toString());
       */
      minAmt = BigNumber.max(
        sellToken.orderAmounts.dust,
        calcForMinCost?.amountS ?? 0
      ).times(1.1);

      console.log(
        "UI show mini-order Sell token amount:",
        minAmt.toString(),
        sdk
          .toBig(minAmt)
          .div("1e" + sellToken.decimals)
          .toString()
      );

      console.log(
        `calcFor100USDAmount.amountS`,
        sdk
          .toBig(calcFor100USDAmount?.amountS ?? 0)
          .div("1e" + sellToken.decimals)
          .toString(),
        "calcForMinCost.amountS",
        sdk
          .toBig(calcForMinCost?.amountS ?? 0)
          .div("1e" + sellToken.decimals)
          .toString()
      );
    }
    const calcTradeParams = sdk.getOutputAmount({
      input: input.toString(),
      sell: sellSymbol,
      buy: buySymbol,
      isAtoB: isInputSellOutputBuy,
      marketArr: marketArray as string[],
      tokenMap: tokenMap as any,
      marketMap: marketMap as any,
      depth,
      ammPoolSnapshot: ammPoolSnapshot,
      feeBips: feeBips ? feeBips.toString() : 1,
      takerRate: "0", // for new calc miniReceive will minus fee, so takeRate can fix as 0
      slipBips: slippage,
    });

    const minSymbol = buySymbol;
    const tradePrice = sdk
      .toBig(calcTradeParams?.amountBOutSlip?.minReceivedVal ?? 0)
      .div(isInputSellOutputBuy ? input.toString() : calcTradeParams?.output);
    const priceImpact = sdk
      .toBig(1)
      .minus(sdk.toBig(tradePrice).div(basePrice ?? 1))
      .minus(0.001);
    if (calcTradeParams && priceImpact.gte(0)) {
      calcTradeParams.priceImpact = priceImpact.toFixed(4, 1);
    } else {
      calcTradeParams && (calcTradeParams.priceImpact = "0");
    }

    console.log(
      "calcTradeParams input:",
      input.toString(),
      ", calcTradeParams Price: ",
      sdk
        .toBig(calcTradeParams?.amountBOutSlip?.minReceivedVal ?? 0)
        .div(input.toString())
        .toNumber(),
      `isAtoB mean isInputSellOutputBuy:${isInputSellOutputBuy}, ${
        isInputSellOutputBuy ? input.toString() : calcTradeParams?.output
      } tradePrice: `,
      tradePrice.toString(),
      "basePrice: ",
      basePrice?.toString(),
      "toBig(tradePrice).div(basePrice)",
      sdk
        .toBig(tradePrice)
        .div(basePrice ?? 1)
        .toNumber(),
      "priceImpact (1-tradePrice/basePrice) - 0.001",
      priceImpact.toNumber(),
      "priceImpact view",
      calcTradeParams?.priceImpact
    );

    if (
      tradeCost &&
      calcTradeParams &&
      calcTradeParams.amountBOutSlip?.minReceived &&
      feeTakerRate
    ) {
      let value = sdk
        .toBig(calcTradeParams.amountBOutSlip?.minReceived)
        .times(feeTakerRate)
        .div(10000);

      console.log(
        "input Accounts",
        calcTradeParams?.amountS,
        "100 U Amount Sell:",
        calcFor100USDAmount?.amountS
      );

      let validAmt = !!(
        calcTradeParams?.amountS &&
        calcFor100USDAmount?.amountS &&
        sdk.toBig(calcTradeParams?.amountS).gte(calcFor100USDAmount.amountS)
      );
      let totalFeeRaw;

      console.log(
        `${minSymbol} tradeCost:`,
        tradeCost,
        "useTakeRate Fee:",
        value.toString(),
        "calcFor100USDAmount?.amountS:",
        calcFor100USDAmount?.amountS,
        `is setup minTrade amount, ${calcFor100USDAmount?.amountS}:`,
        validAmt
      );

      if (!validAmt) {
        if (sdk.toBig(tradeCost).gte(value)) {
          totalFeeRaw = sdk.toBig(tradeCost);
        } else {
          totalFeeRaw = value;
        }
        console.log(
          "maxFeeBips update for tradeCost before value:",
          maxFeeBips,
          "totalFeeRaw",
          totalFeeRaw.toString()
        );
        maxFeeBips = Math.ceil(
          totalFeeRaw
            .times(10000)
            .div(calcTradeParams.amountBOutSlip?.minReceived)
            .toNumber()
        );
        console.log("maxFeeBips update for tradeCost after value:", maxFeeBips);
      } else {
        totalFeeRaw = sdk.toBig(value);
      }

      /**
       * totalFee
       */
      totalFee = totalFeeRaw
        .div("1e" + tokenMap[minSymbol].decimals)
        .toString();
      /** @output: UI
       *   getValuePrecisionThousand(
       *   totalFeeRaw.div("1e" + tokenMap[minSymbol].decimals).toString(),
       *   tokenMap[minSymbol].precision,
       *   tokenMap[minSymbol].precision,
       *   tokenMap[minSymbol].precision,
       *   false,
       *   { floor: true }
       * );
       */

      tradeCost = sdk
        .toBig(tradeCost)
        // @ts-ignore
        .div("1e" + tokenMap[minSymbol].decimals)
        .toString();

      /** @output:  UI code with precision
       *   getValuePrecisionThousand(
       *   sdk
       *     .toBig(tradeCost)
       *     .div("1e" + tokenMap[minSymbol].decimals)
       *     .toString(),
       *   tokenMap[minSymbol].precision,
       *   tokenMap[minSymbol].precision,
       *   tokenMap[minSymbol].precision,
       *   false,
       *   { floor: true }
       * );
       */

      console.log("totalFee view value:", totalFee + " " + minSymbol);
      console.log("tradeCost view value:", tradeCost + " " + minSymbol);
    }

    const minimumReceived = sdk
      .toBig(calcTradeParams?.amountBOutSlip?.minReceivedVal ?? 0)
      .minus(totalFee ?? 0)
      .toString();
    console.log("minimumReceived:", minimumReceived);

    /** @output:   UI code with precision
     *   getValuePrecisionThousand(
     *   toBig(calcTradeParams?.amountBOutSlip?.minReceivedVal ?? 0)
     *     .minus(totalFee)
     *     .toString(),
     *   tokenMap[minSymbol].precision,
     *   tokenMap[minSymbol].precision,
     *   tokenMap[minSymbol].precision,
     *   false,
     *   { floor: true }
     * );
     */

    let priceImpactView: any = calcTradeParams?.priceImpact
      ? parseFloat(calcTradeParams?.priceImpact) * 100
      : undefined;
    console.log("priceImpact view:", priceImpactView + "%");
    //  @output:   UI code with color alert
    // const priceImpactObj = getPriceImpactInfo(calcTradeParams);
    // const _tradeCalcData: Partial<TradeCalcData<C>> = {
    //   priceImpact: priceImpactObj.value.toString(),
    //   priceImpactColor: priceImpactObj.priceImpactColor,
    //   minimumReceived: !minimumReceived?.toString().startsWith("-")
    //     ? minimumReceived
    //     : undefined,
    //   fee: totalFee,
    //   feeTakerRate,
    //   tradeCost,
    // };

    console.log(
      `isInputSellOutputBuy:${isInputSellOutputBuy}`,
      `output ${isInputSellOutputBuy ? "Buy" : "Sell"}`,
      calcTradeParams?.output
    );

    return {
      market,
      feeBips,
      takerRate,
      sellMinAmtInfo: sellMinAmtInfo as any,
      buyMinAmtInfo: buyMinAmtInfo as any,
      totalFee,
      maxFeeBips,
      feeTakerRate,
      tradeCost,
      minimumReceived,
      calcTradeParams,
      minAmt,
    };
  }
};

Get apikey & eddsaKey

const {accInfo} = await LoopringAPI.exchangeAPI.getAccount({
  owner: LOOPRING_EXPORTED_ACCOUNT.address,
});
const eddsaKey = await signatureKeyPairMock(accInfo);
apiKey = (
  await LoopringAPI.userAPI.getUserApiKey(
    {
      accountId: accInfo.accountId,
    },
    eddsaKey.sk
  )
).apiKey;

Get storageId

const storageId = await LoopringAPI.userAPI.getNextStorageId(
  {
    accountId: LOOPRING_EXPORTED_ACCOUNT.accountId,
    sellTokenId: TOKEN_INFO.tokenMap[sell].tokenId,
  },
  apiKey
);

Get user AmountMap, which decides users minimum order

yconst amountMap = {
  [AMM_MARKET]: (
    await LoopringAPI.userAPI.getMinimumTokenAmt(
      {
        accountId: LOOPRING_EXPORTED_ACCOUNT.accountId,
        market: AMM_MAP[AMM_MARKET].market,
      },
      apiKey
    )
  ).amountMap,
  [MARKET]: (
    await LoopringAPI.userAPI.getMinimumTokenAmt(
      {
        accountId: LOOPRING_EXPORTED_ACCOUNT.accountId,
        market: MARKET,
      },
      apiKey
    )
  ).amountMap,
};

Depth, ammPoolSnapshot ,tickMap

const [{depth}, {ammPoolSnapshot}] = await Promise.all([
  LoopringAPI.exchangeAPI.getMixDepth({
    market: AMM_MAP["AMM-LRC-ETH"].market,
  }),
  LoopringAPI.ammpoolAPI.getAmmPoolSnapshot({
    poolAddress: AMM_MAP["AMM-LRC-ETH"].address,
  }),
]);

Check MinAmt see log and calc mini receive and ouput value & maxfeeBips & priceImpact & swap output

 const { calcTradeParams, maxFeeBips, minimumReceived } = calculateSwap(
  sell,
  buy,
  isAtoB,
  10, // user Input value no decimal 10 lrc,
  0.1,
  //TODO MOCK value
  amountMap,
  "LRC-ETH",
  // close = ticker.tickers[7],
  depth,
  ammPoolSnapshot,
  TOKEN_INFO.tokenMap,
  AMM_MAP
);

Submit

const response: { hash: string } | any =
  await LoopringAPI.userAPI.submitOrder(
    {
      exchange: LOOPRING_EXPORTED_ACCOUNT.exchangeAddress,
      accountId: LOOPRING_EXPORTED_ACCOUNT.accountId,
      storageId: storageId.orderId,
      sellToken: {
        tokenId: TOKEN_INFO.tokenMap[sell].tokenId,
        volume: calcTradeParams?.amountS as string,
      },
      buyToken: {
        tokenId: TOKEN_INFO.tokenMap[buy].tokenId,
        volume: calcTradeParams?.amountBOutSlip.minReceived as string,
      },
      allOrNone: false,
      validUntil: LOOPRING_EXPORTED_ACCOUNT.validUntil,
      maxFeeBips: 63,
      fillAmountBOrS: false, // amm only false
      tradeChannel: calcTradeParams?.exceedDepth
        ? sdk.TradeChannel.BLANK
        : sdk.TradeChannel.MIXED,
      orderType: calcTradeParams?.exceedDepth
        ? sdk.OrderType.ClassAmm
        : sdk.OrderType.TakerOnly,
      eddsaSignature: "",
    },
    eddsaKey.sk,
    apiKey
  );
console.log("submitOrder", response);

Mock Swap Data

import * as sdk from "../index";

export const marketArray = ["LRC-ETH"];
export const marketMap = {
  "LRC-ETH": {
    baseTokenId: 1,
    enabled: true,
    market: "LRC-ETH",
    orderbookAggLevels: 5,
    precisionForPrice: 6,
    quoteTokenId: 0,
    status: 3,
    isSwapEnabled: true,
    createdAt: 1617967800000,
  },
};
//v3/mix/depth?level=0&limit=50&market=LRC-ETH
export const deepMock = {
  symbol: "LRC-ETH",
  version: 23249677,
  timestamp: 1655719492365,
  mid_price: 0.00033248,
  bids: [
    {
      price: 0.00030689,
      amt: "12041160324514792497908",
      vol: "3695372332571085210",
      amtTotal: "618450503644320209925641",
      volTotal: "198539605794234049017",
    },
    {
      price: 0.00030752,
      amt: "12016302126785109160251",
      vol: "3695372332571085210",
      amtTotal: "606409343319805417427733",
      volTotal: "194844233461662963807",
    },
    {
      price: 0.00030816,
      amt: "11991520826895479525387",
      vol: "3695372332571085210",
      amtTotal: "594393041193020308267482",
      volTotal: "191148861129091878597",
    },
    {
      price: 0.00030881,
      amt: "12329062048917727073625",
      vol: "3807353312345966580",
      amtTotal: "582401520366124828742095",
      volTotal: "187453488796520793387",
    },
    {
      price: 0.00030945,
      amt: "11941442525358097768419",
      vol: "3695372332571085210",
      amtTotal: "570072458317207101668470",
      volTotal: "183646135484174826807",
    },
    {
      price: 0.0003102,
      amt: "3223726000000000000000",
      vol: "999999805200000000",
      amtTotal: "558131015791849003900051",
      volTotal: "179950763151603741597",
    },
    {
      price: 0.0003104,
      amt: "11904963012947201084062",
      vol: "3695372332571085210",
      amtTotal: "554907289791849003900051",
      volTotal: "178950763346403741597",
    },
    {
      price: 0.00031072,
      amt: "11892800074855146120151",
      vol: "3695372332571085210",
      amtTotal: "543002326778901802815989",
      volTotal: "175255391013832656387",
    },
    {
      price: 0.00031137,
      amt: "12227667622887455762012",
      vol: "3807353312345966580",
      amtTotal: "531109526704046656695838",
      volTotal: "171560018681261571177",
    },
    {
      price: 0.00031202,
      amt: "11843337524732768607817",
      vol: "3695372332571085210",
      amtTotal: "518881859081159200933826",
      volTotal: "167752665368915604597",
    },
    {
      price: 0.00031266,
      amt: "11819088718260537718160",
      vol: "3695372332571085210",
      amtTotal: "507038521556426432326009",
      volTotal: "164057293036344519387",
    },
    {
      price: 0.0003133,
      amt: "11794914308461194855590",
      vol: "3695372332571085210",
      amtTotal: "495219432838165894607849",
      volTotal: "160361920703773434177",
    },
    {
      price: 0.00031395,
      amt: "12127129883064173669497",
      vol: "3807353312345966580",
      amtTotal: "483424518529704699752259",
      volTotal: "156666548371202348967",
    },
    {
      price: 0.0003146,
      amt: "11746060536480763829870",
      vol: "3695372332571085210",
      amtTotal: "471297388646640526082762",
      volTotal: "152859195058856382387",
    },
    {
      price: 0.00031524,
      amt: "11722109721002274877424",
      vol: "3695372332571085210",
      amtTotal: "459551328110159762252892",
      volTotal: "149163822726285297177",
    },
    {
      price: 0.0003159,
      amt: "12052351993023897680738",
      vol: "3807353312345966580",
      amtTotal: "447829218389157487375468",
      volTotal: "145468450393714211967",
    },
    {
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      amt: "2879934000000000000000",
      vol: "1022376570000000000",
      amtTotal: "529333508007984850786119",
      volTotal: "180774369071336529561",
    },
    {
      price: 0.00035539,
      amt: "10419392212908119384882",
      vol: "3702874294964379056",
      amtTotal: "539752900220892970171001",
      volTotal: "184477243366300908617",
    },
    {
      price: 0.00035607,
      amt: "10399400937404414745812",
      vol: "3702859901246016389",
      amtTotal: "550152301158297384916813",
      volTotal: "188180103267546925006",
    },
    {
      price: 0.00035675,
      amt: "10379467141462596339294",
      vol: "3702845548912938279",
      amtTotal: "560531768299759981256107",
      volTotal: "191882948816459863285",
    },
    {
      price: 0.00035781,
      amt: "10673207910450037674513",
      vol: "3818930797471485007",
      amtTotal: "571204976210210018930620",
      volTotal: "195701879613931348292",
    },
    {
      price: 0.00035815,
      amt: "10339171406073422424770",
      vol: "3702919927697518809",
      amtTotal: "581544147616283441355390",
      volTotal: "199404799541628867101",
    },
    {
      price: 0.00035883,
      amt: "10319410450646547471681",
      vol: "3702905502200057190",
      amtTotal: "591863558066929988827071",
      volTotal: "203107705043828924291",
    },
    {
      price: 0.00035887,
      amt: "1253970999999999795200",
      vol: "449999996860000051",
      amtTotal: "593117529066929988622271",
      volTotal: "203557705040688924342",
    },
    {
      price: 0.00035952,
      amt: "10299706093934767574874",
      vol: "3702891118019657590",
      amtTotal: "603417235160864756197145",
      volTotal: "207260596158708581932",
    },
    {
      price: 0.00036,
      amt: "491031000000000000000",
      vol: "176771040000000000",
      amtTotal: "603908266160864756197145",
      volTotal: "207437367198708581932",
    },
    {
      price: 0.00036022,
      amt: "10591268908994289896668",
      vol: "3815084938649532411",
      amtTotal: "614499535069859046093813",
      volTotal: "211252452137358114343",
    },
  ],
  asks_prices: [
    0.00033331, 0.0003336, 0.00033371, 0.00033439, 0.00033501, 0.00033506,
    0.00033572, 0.00033638, 0.000337, 0.00033706, 0.00033773, 0.00033848,
    0.00033893, 0.00033907, 0.00033934, 0.00033975, 0.00034042, 0.00034061,
    0.00034109, 0.00034176, 0.00034244, 0.00034312, 0.00034379, 0.00034447,
    0.00034515, 0.00034582, 0.00034649, 0.00034718, 0.00034809, 0.00034854,
    0.00034922, 0.00034991, 0.00035059, 0.00035127, 0.00035196, 0.00035265,
    0.00035333, 0.00035401, 0.0003547, 0.000355, 0.00035539, 0.00035607,
    0.00035675, 0.00035781, 0.00035815, 0.00035883, 0.00035887, 0.00035952,
    0.00036, 0.00036022,
  ],
  asks_amtTotals: [
    "26466599999999999737856",
    "60347400000000000786432",
    "71489877800817400774420",
    "82900001904293292971822",
    "122234201904293285893934",
    "133286497438765440124271",
    "144316953761678803833989",
    "155325635540196872873465",
    "162513809223956873012729",
    "173833381174065333754584",
    "184798051906578645141799",
    "195741142503458096012774",
    "226827452515978096139750",
    "237749026624062181212249",
    "259810800193782182445145",
    "271040893678352643551479",
    "281918977553464164143875",
    "300948619498234164597507",
    "311805378231938450795419",
    "322640874470793345809679",
    "333782546270039087912453",
    "344575064903739228314494",
    "355346509388628001578471",
    "366422384688283658190129",
    "377151231708579242981712",
    "387859190708127349643612",
    "398546322628019364152161",
    "409535587833613328278263",
    "420180620961041407426017",
    "430805010237312954583534",
    "441408815656007036758006",
    "452312482708073271321136",
    "462874680253020903023688",
    "473416474325570052501445",
    "484256438830853486889382",
    "494756989125880091796620",
    "505237314232105209634346",
    "515697472527140180302263",
    "526453574007984850786119",
    "529333508007984850786119",
    "539752900220892970171001",
    "550152301158297384916813",
    "560531768299759981256107",
    "571204976210210018930620",
    "581544147616283441355390",
    "591863558066929988827071",
    "593117529066929988622271",
    "603417235160864756197145",
    "603908266160864756197145",
    "614499535069859046093813",
  ],
  asks_volTotals: [
    "8821317780000000000",
    "20123952660000000000",
    "23842308926910774549",
    "27657649326129174254",
    "40834606326129174254",
    "44537715265574389972",
    "48240808917571514537",
    "51943887327387562395",
    "54366229977077844891",
    "58181506989788887393",
    "61884554591872731921",
    "65588475801549829728",
    "76124247990993108576",
    "79827374641180933486",
    "87313596266594021742",
    "91128922945314033350",
    "94832018717436447739",
    "101313705060244556795",
    "105016785691516572049",
    "108719851226417244234",
    "112535115125740675291",
    "116238150146541687601",
    "119941170204697043840",
    "123756387388505765936",
    "127459377202461261011",
    "131162352185922025377",
    "134865312382156233917",
    "138680468072798172212",
    "142385809710107234072",
    "146088831602957234796",
    "149791838675429779745",
    "153607042628053234014",
    "157310019742856681519",
    "161012982167160002116",
    "164828140253949772769",
    "168531072982733277135",
    "172233991149380844430",
    "175936894795924354818",
    "179751992501336529561",
    "180774369071336529561",
    "184477243366300908617",
    "188180103267546925006",
    "191882948816459863285",
    "195701879613931348292",
    "199404799541628867101",
    "203107705043828924291",
    "203557705040688924342",
    "207260596158708581932",
    "207437367198708581932",
    "211252452137358114343",
  ],
  asks_amtTotal: "614499535069859046093813",
  asks_volTotal: "211252452137358114343",
};
//v3/amm/balance?poolAddress=0xfEB069407df0e1e4B365C10992F1bc16c078E34b
export const ammPoolSnapshot: sdk.AmmPoolSnapshot = {
  poolName: "AMM-LRC-ETH",
  poolAddress: "0x18920d6e6fb7ebe057a4dd9260d6d95845c95036",
  pooled: [
    {
      tokenId: 1,
      volume: "11198097977488137000000000",
    },
    {
      tokenId: 0,
      volume: "3725368050950874300000",
    },
  ],
  lp: {
    tokenId: 83,
    volume: "34138981282200",
  },
  risky: false,
};
//v3/amm/balance?poolAddress=0xfEB069407df0e1e4B365C10992F1bc16c078E34b
export const ammPool = {
  poolName: "AMM-LRC-ETH",
  poolAddress: "0x18920d6e6fb7ebe057a4dd9260d6d95845c95036",
  pooled: [
    { tokenId: 1, volume: "11215027899488137000000000" },
    { tokenId: 0, volume: "3720052711450874300000" },
  ],
  lp: { tokenId: 83, volume: "34141365482200" },
  risky: false,
};

//v3/mix/ticker?market=LRC-ETH
export const ticker = {
  tickers: [
    [
      "COMBINE-LRC-ETH",
      "1655625077879",
      "2429371927000000000000000",
      "814655525450000000000",
      "0.00035052",
      "0.00035222",
      "0.00032201",
      "0.00033367",
      "772",
      "",
      "",
      "",
      "",
    ],
  ],
};

//v3/user/orderUserRateAmount?accountId=10427&market=LRC-ETH
export const userAmount = {
  "LRC-ETH": {
    LRC: {
      tokenSymbol: "LRC",
      baseOrderInfo: {
        minAmount: "266240681576144834931",
        makerRate: 0,
        takerRate: 10,
      },
      userOrderInfo: {
        minAmount: "266240681576144834931",
        makerRate: 0,
        takerRate: 10,
      },
      tradeCost: "231046501539337141",
    },
    ETH: {
      tokenSymbol: "ETH",
      baseOrderInfo: {
        minAmount: "86598080986525339",
        makerRate: 0,
        takerRate: 10,
      },
      userOrderInfo: {
        minAmount: "86598080986525339",
        makerRate: 0,
        takerRate: 10,
      },
      tradeCost: "75150737796750",
    },
  },
  "AMM-LRC-ETH": {
    LRC: {
      tokenSymbol: "LRC",
      baseOrderInfo: {
        minAmount: "266240681576144834931",
        makerRate: 0,
        takerRate: 10,
      },
      userOrderInfo: {
        minAmount: "266240681576144834931",
        makerRate: 0,
        takerRate: 10,
      },
      tradeCost: "231046501539337141",
    },
    ETH: {
      tokenSymbol: "ETH",
      baseOrderInfo: {
        minAmount: "86598080986525339",
        makerRate: 0,
        takerRate: 10,
      },
      userOrderInfo: {
        minAmount: "86598080986525339",
        makerRate: 0,
        takerRate: 10,
      },
      tradeCost: "75150737796750",
    },
  },
};
export const TokenMapMockSwap = {
  ETH: {
    type: "ETH",
    tokenId: 0,
    symbol: "ETH",
    name: "Ethereum",
    address: "0x0000000000000000000000000000000000000000",
    decimals: 18,
    precision: 7,
    precisionForOrder: 3,
    orderAmounts: {
      minimum: "1700000000000000",
      maximum: "1000000000000000000000",
      dust: "200000000000000",
    },
    luckyTokenAmounts: {
      minimum: "50000000000000",
      maximum: "1000000000000000000000",
      dust: "50000000000000",
    },
    fastWithdrawLimit: "100000000000000000000",
    gasAmounts: {
      distribution: "85000",
      deposit: "110000",
    },
    enabled: true,
    isLpToken: false,
    tradePairs: ["LRC"],
  },
  LRC: {
    type: "ERC20",
    tokenId: 1,
    symbol: "LRC",
    name: "Loopring",
    address: "0xbbbbca6a901c926f240b89eacb641d8aec7aeafd",
    decimals: 18,
    precision: 3,
    precisionForOrder: 3,
    orderAmounts: {
      minimum: "5000000000000000000",
      maximum: "5000000000000000000000000",
      dust: "5000000000000000000",
    },
    luckyTokenAmounts: {
      minimum: "50000000000000000",
      maximum: "5000000000000000000000000",
      dust: "50000000000000000",
    },
    fastWithdrawLimit: "750000000000000000000000",
    gasAmounts: {
      distribution: "101827",
      deposit: "150000",
    },
    enabled: true,
    isLpToken: false,
    tradePairs: ["ETH"],
  },
};

export const MAPFEEBIPS = 63;

PreviousDeposit ERC20 NextAPI References

Last updated 2 years ago

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Order ERC20

Mini-order

Query `api/v3/exchange/tokens` to get the dust value of orderAmounts for both LRC and ETH

Set maxAllowBips = 50%

Set slippage as the slippage value user configured in UI

Caculate minCostLRC and minCostETH as below

Caculate the cost by considering slippage

Cacluate the minimum quantity user has to set

Caculate the previous minimum token amount per calling `api/v3/user/orderUserRateAmount` (existing logic)

Caculate the new maxFeeBips and start trading

Price impact update

LRC-ETH : for Base to Quote

Get apikey & eddsaKey

Get storageId

Get user AmountMap, which decides users minimum order

Depth, ammPoolSnapshot ,tickMap

Check MinAmt see log and calc mini receive and ouput value & maxfeeBips & priceImpact & swap output

Submit

Mini-order

Query api/v3/exchange/tokens to get the dust value of orderAmounts for both LRC and ETH

Set maxAllowBips = 50%

Set slippage as the slippage value user configured in UI

Caculate minCostLRC and minCostETH as below

Caculate the cost by considering slippage

Cacluate the minimum quantity user has to set

Caculate the previous minimum token amount per calling api/v3/user/orderUserRateAmount (existing logic)

Caculate the new maxFeeBips and start trading

Price impact update

LRC-ETH : for Base to Quote

Get apikey & eddsaKey

Get storageId

Get user AmountMap, which decides users minimum order

Depth, ammPoolSnapshot ,tickMap

Check MinAmt see log and calc mini receive and ouput value & maxfeeBips & priceImpact & swap output

Submit

Query `api/v3/exchange/tokens` to get the dust value of orderAmounts for both LRC and ETH

Caculate the previous minimum token amount per calling `api/v3/user/orderUserRateAmount` (existing logic)