增加获取支持的法币列表的接口

src/api/PayApi.ts

@@ -1,5 +1,5 @@
 import { WALLET_API_HOST } from "../config/constants";
-import { POST_JSON } from "../lib/Http";
+import { GET_JSON, POST_JSON } from "../lib/Http";
 
 export function reqAlchemyPrePay(data: any) {
   const url = `${WALLET_API_HOST}/pay/alchemy/buy`;
@@ -10,3 +10,8 @@ export function queryEthUsdPrice(eth: string, chain: string) {
   const url = `${WALLET_API_HOST}/pay/alchemy/crypto_price`;
   return POST_JSON(url, { token: eth, chain });
 }
+
+export function queryFiatList() {
+  const url = `${WALLET_API_HOST}/pay/alchemy/fait_list`;
+  return GET_JSON(url);
+}

src/index.ts

@@ -40,7 +40,11 @@ import { JCStandard } from "./standards/JCStandard";
 import { WalletType } from "./types/data.enums";
 import { IChainData } from "./types/data.types";
 import { universalChainCb } from "./util/chain.util";
-import { fromTokenMinimalUnit, safeNumberToBN } from "./util/number.util";
+import {
+  fromTokenMinimalUnit,
+  renderFromTokenMinimalUnit,
+  safeNumberToBN,
+} from "./util/number.util";
 import { buildLoginSignMsg, signLogin } from "./util/sign.util";
 
 var global =
@@ -293,13 +297,27 @@ export default class JCWallet {
     let price = await new PaySvr().getGasPrice(chainData.id);
     let ehtBN = safeNumberToBN(price).mul(safeNumberToBN(gas));
     let ethSymbol = chainData.type !== "Testnet" ? chainData.symbol : "ETH";
-    let leagelPrice = await new PaySvr().queryEthPrice(chainData.id, ethSymbol);
+    let fiatPrice = await new PaySvr().queryTokenPrice(ethSymbol, ethSymbol);
-    let priceFloat = parseFloat(leagelPrice) * 100;
+    let priceFloat = parseFloat(fiatPrice) * 100;
-    let leagelPriceBN = safeNumberToBN(priceFloat);
+    let fiatPriceBN = safeNumberToBN(priceFloat);
-    let usd = fromTokenMinimalUnit(ehtBN.mul(leagelPriceBN), 20);
+    let usd = fromTokenMinimalUnit(ehtBN.mul(fiatPriceBN), 20);
     let eth = fromTokenMinimalUnit(ehtBN, 18);
     return { gas, price, eth, usd };
   }
+  /**
+   * 查询token的法币价格
+   * token 必须已经在去中心化交易所上架
+   * @param tokenName token名称
+   * @param amount  token数量
+   * @returns
+   */
+  public async calcTokenPrice(tokenName: string, amount: string) {
+    let chainData = this.currentChain;
+    let ethSymbol = chainData.type !== "Testnet" ? chainData.symbol : "ETH";
+    let fiatPrice = await new PaySvr().queryTokenPrice(ethSymbol, tokenName);
+    let priceFloat = parseFloat(fiatPrice) * 100;
+    return priceFloat * parseFloat(amount);
+  }
 
   public async sendEth(to: string, amount: number | string, estimate: number) {
     let from = this.currentAccAddr;
@@ -386,6 +404,10 @@ export default class JCWallet {
     return icon.init(msg, diameter);
   }
 
+  public formatPrice(value: string | number, decimal: number, fixed: number) {
+    return renderFromTokenMinimalUnit(value, decimal, fixed);
+  }
+
   public async erc20Info(address: string) {
     let symbol = await this.erc20Standard.getTokenSymbol(address);
     let decimal = await this.erc20Standard.getTokenDecimals(address);

src/services/PaySvr.ts

@@ -1,4 +1,8 @@
-import { queryEthUsdPrice, reqAlchemyPrePay } from "../api/PayApi";
+import {
+  queryEthUsdPrice,
+  queryFiatList,
+  reqAlchemyPrePay,
+} from "../api/PayApi";
 import { singleton } from "../decorator/singleton.decorator";
 import { IPayData } from "../types/data.types";
 
@@ -42,25 +46,28 @@ export class PaySvr {
     return this.priceMap.get(key);
   }
 
-  public async queryEthPrice(chainId: number, eth: string) {
+  private async updateTokenPrice(chain: string, tokenName: string) {
-    const usd = "USD";
+    const key = `crypto_usd_${chain}_${tokenName}`;
-    const key = `crypto_usd_${chainId}_${eth}`;
+    let priceData = await queryEthUsdPrice(tokenName, chain);
+    console.log("ETH price data", JSON.stringify(priceData));
+    let price = priceData.data.price;
+    this.priceMap.set(key, price + "");
+  }
+
+  public async queryTokenPrice(chain: string, tokenName: string) {
+    chain = chain.toUpperCase();
+    tokenName = tokenName.toUpperCase();
+    const key = `crypto_usd_${chain}_${tokenName}`;
     if (!this.priceMap.has(key)) {
       try {
-        let priceData = await queryEthUsdPrice(eth, "ETH");
+        await this.updateTokenPrice(chain, tokenName);
-        console.log("ETH price data", JSON.stringify(priceData));
-        let price = priceData.data.price;
-        this.priceMap.set(key, price + "");
       } catch (err) {
         console.log("ETH price err", err);
       }
     } else {
       setImmediate(async () => {
         try {
-          let priceData = await queryEthUsdPrice(eth, "ETH");
+          await this.updateTokenPrice(chain, tokenName);
-          console.log("ETH price data", JSON.stringify(priceData));
-          let price = priceData.data.price;
-          this.priceMap.set(key, price + "");
         } catch (err) {
           console.log("ETH price err", err);
         }
@@ -69,4 +76,8 @@ export class PaySvr {
     console.log("ETH price", this.priceMap.get(key));
     return this.priceMap.get(key);
   }
+
+  public async fetchFiatList() {
+    return queryFiatList();
+  }
 }