Add support to import by isin

apps/api/src/services/data-provider/data-enhancer/yahoo-finance/yahoo-finance.service.ts

@@ -10,6 +10,7 @@ import {
   Prisma,
   SymbolProfile
 } from '@prisma/client';
+import { isISIN } from 'class-validator';
 import { countries } from 'countries-list';
 import yahooFinance from 'yahoo-finance2';
 import type { Price } from 'yahoo-finance2/dist/esm/src/modules/quoteSummary-iface';
@@ -20,8 +21,18 @@ export class YahooFinanceDataEnhancerService implements DataEnhancerInterface {
     private readonly cryptocurrencyService: CryptocurrencyService
   ) {}
 
-  public convertFromYahooFinanceSymbol(aYahooFinanceSymbol: string) {
-    let symbol = aYahooFinanceSymbol.replace(
+  public convertFromYahooFinanceSymbol({
+    yahooFinanceSymbol,
+    yahooFinanceSymbolMap = {}
+  }: {
+    yahooFinanceSymbol: string;
+    yahooFinanceSymbolMap?: { [yahooFinanceSymbol: string]: string };
+  }) {
+    if (yahooFinanceSymbolMap[yahooFinanceSymbol]) {
+      return yahooFinanceSymbolMap[yahooFinanceSymbol];
+    }
+
+    let symbol = yahooFinanceSymbol.replace(
       new RegExp(`-${DEFAULT_CURRENCY}$`),
       DEFAULT_CURRENCY
     );
@@ -36,11 +47,12 @@ export class YahooFinanceDataEnhancerService implements DataEnhancerInterface {
   /**
    * Converts a symbol to a Yahoo Finance symbol
    *
-   * Currency:        USDCHF  -> USDCHF=X
    * Cryptocurrency:  BTCUSD        -> BTC-USD
    *                  DOGEUSD       -> DOGE-USD
+   * Currency:        USDCHF        -> USDCHF=X
+   * ISIN:            US30303M1027  -> META
    */
-  public convertToYahooFinanceSymbol(aSymbol: string) {
+  public async convertToYahooFinanceSymbol(aSymbol: string) {
     if (
       aSymbol.includes(DEFAULT_CURRENCY) &&
       aSymbol.length > DEFAULT_CURRENCY.length
@@ -65,6 +77,11 @@ export class YahooFinanceDataEnhancerService implements DataEnhancerInterface {
           `-${DEFAULT_CURRENCY}`
         );
       }
+    } else if (isISIN(aSymbol)) {
+      try {
+        const { quotes } = await yahooFinance.search(aSymbol);
+        return quotes[0].symbol;
+      } catch {}
     }
 
     return aSymbol;
@@ -156,7 +173,7 @@ export class YahooFinanceDataEnhancerService implements DataEnhancerInterface {
     const response: Partial<SymbolProfile> = {};
 
     try {
-      const symbol = this.convertToYahooFinanceSymbol(aSymbol);
+      const symbol = await this.convertToYahooFinanceSymbol(aSymbol);
       const assetProfile = await yahooFinance.quoteSummary(symbol, {
         modules: ['price', 'summaryProfile', 'topHoldings']
       });

apps/api/src/services/data-provider/yahoo-finance/yahoo-finance.service.ts

@@ -30,16 +30,17 @@ export class YahooFinanceService implements DataProviderInterface {
   public async getAssetProfile(
     aSymbol: string
   ): Promise<Partial<SymbolProfile>> {
-    const { assetClass, assetSubClass, currency, name } =
-      await this.yahooFinanceDataEnhancerService.getAssetProfile(aSymbol);
+    let symbol = aSymbol;
+    let { assetClass, assetSubClass, currency, name } =
+      await this.yahooFinanceDataEnhancerService.getAssetProfile(symbol);
 
     return {
       assetClass,
       assetSubClass,
       currency,
       name,
-      dataSource: this.getName(),
-      symbol: aSymbol
+      symbol,
+      dataSource: this.getName()
     };
   }
 
@@ -60,7 +61,7 @@ export class YahooFinanceService implements DataProviderInterface {
 
     try {
       const historicalResult = await yahooFinance.historical(
-        this.yahooFinanceDataEnhancerService.convertToYahooFinanceSymbol(
+        await this.yahooFinanceDataEnhancerService.convertToYahooFinanceSymbol(
           symbol
         ),
         {
@@ -112,7 +113,7 @@ export class YahooFinanceService implements DataProviderInterface {
 
     try {
       const historicalResult = await yahooFinance.historical(
-        this.yahooFinanceDataEnhancerService.convertToYahooFinanceSymbol(
+        await this.yahooFinanceDataEnhancerService.convertToYahooFinanceSymbol(
           aSymbol
         ),
         {
@@ -167,9 +168,17 @@ export class YahooFinanceService implements DataProviderInterface {
       return response;
     }
 
-    const yahooFinanceSymbols = symbols.map((symbol) =>
-      this.yahooFinanceDataEnhancerService.convertToYahooFinanceSymbol(symbol)
+    const yahooFinanceSymbols: string[] = [];
+    const yahooFinanceSymbolMap: { [yahooFinanceSymbol: string]: string } = {};
+
+    for (const symbol of symbols) {
+      const yahooFinanceSymbol =
+        await this.yahooFinanceDataEnhancerService.convertToYahooFinanceSymbol(
+          symbol
         );
+      yahooFinanceSymbolMap[yahooFinanceSymbol] = symbol;
+      yahooFinanceSymbols.push(yahooFinanceSymbol);
+    }
 
     try {
       let quotes: Pick<
@@ -193,9 +202,10 @@ export class YahooFinanceService implements DataProviderInterface {
       for (const quote of quotes) {
         // Convert symbols back
         const symbol =
-          this.yahooFinanceDataEnhancerService.convertFromYahooFinanceSymbol(
-            quote.symbol
-          );
+          this.yahooFinanceDataEnhancerService.convertFromYahooFinanceSymbol({
+            yahooFinanceSymbolMap,
+            yahooFinanceSymbol: quote.symbol
+          });
 
         response[symbol] = {
           currency: quote.currency,
@@ -332,9 +342,9 @@ export class YahooFinanceService implements DataProviderInterface {
         });
 
         const symbol =
-          this.yahooFinanceDataEnhancerService.convertFromYahooFinanceSymbol(
-            marketDataItem.symbol
-          );
+          this.yahooFinanceDataEnhancerService.convertFromYahooFinanceSymbol({
+            yahooFinanceSymbol: marketDataItem.symbol
+          });
 
         const { assetClass, assetSubClass } =
           this.yahooFinanceDataEnhancerService.parseAssetClass({