feat: add Fundamentals API v1.1 methods (#10)

Adds fundamentalsV1_1() and bulkFundamentalsV1_1() — same params, v1.1 endpoint with improved Earnings::Trend.

Author: alexpipipi

src/api/fundamentals.ts

@@ -20,6 +20,16 @@ export class FundamentalsApi {
     return this.http.get(`/bulk-fundamentals/${encodeURIComponent(exchange)}`, params);
   }
 
+  /** Company fundamentals v1.1 (extended Earnings::Trend): GET /v1.1/fundamentals/{ticker} */
+  async fundamentalsV1_1(ticker: Ticker, params: FundamentalsParams = {}): Promise<FundamentalsData> {
+    return this.http.get(`/v1.1/fundamentals/${encodeURIComponent(ticker)}`, params);
+  }
+
+  /** Bulk fundamentals v1.1 for exchange: GET /v1.1/bulk-fundamentals/{exchange} */
+  async bulkFundamentalsV1_1(exchange: string, params: BulkFundamentalsParams = {}): Promise<BulkFundamentalsItem[]> {
+    return this.http.get(`/v1.1/bulk-fundamentals/${encodeURIComponent(exchange)}`, params);
+  }
+
   /** Company logo (PNG): GET /logo/{symbol} */
   async logo(symbol: Ticker): Promise<ArrayBuffer> {
     return this.http.getBuffer(`/logo/${encodeURIComponent(symbol)}`);

src/client.ts

@@ -461,6 +461,44 @@ export class EODHDClient {
     return this._fundamentals.bulkFundamentals(exchange, params);
   }
 
+  /**
+   * Fetch company fundamentals using the v1.1 API (extended Earnings::Trend section).
+   *
+   * @param ticker - Symbol with exchange suffix, e.g. `"AAPL.US"`
+   * @param params - Optional date range, filter, historical toggle
+   * @returns Fundamentals data object with nested sections
+   * @throws {@link EODHDError} on API error
+   * @see https://eodhd.com/financial-apis/stock-etfs-fundamental-data-feeds/
+   *
+   * @example
+   * ```ts
+   * const fund = await client.fundamentalsV1_1('AAPL.US');
+   * console.log(fund.Earnings); // extended Trend data
+   * ```
+   */
+  fundamentalsV1_1(ticker: Ticker, params?: FundamentalsParams): Promise<FundamentalsData> {
+    return this._fundamentals.fundamentalsV1_1(ticker, params);
+  }
+
+  /**
+   * Fetch bulk fundamentals v1.1 for all tickers on an exchange (extended Earnings::Trend).
+   *
+   * @param exchange - Exchange code, e.g. `"US"`
+   * @param params - Optional symbols filter
+   * @returns Array of bulk fundamentals items
+   * @throws {@link EODHDError} on API error
+   * @see https://eodhd.com/financial-apis/bulk-fundamentals-api/
+   *
+   * @example
+   * ```ts
+   * const bulk = await client.bulkFundamentalsV1_1('US', { symbols: 'AAPL,MSFT' });
+   * console.log(bulk[0].General?.Name);
+   * ```
+   */
+  bulkFundamentalsV1_1(exchange: string, params?: BulkFundamentalsParams): Promise<BulkFundamentalsItem[]> {
+    return this._fundamentals.bulkFundamentalsV1_1(exchange, params);
+  }
+
   // ── News & Sentiment ──
 
   /**

test/client.test.ts

@@ -288,6 +288,24 @@ describe("EODHDClient", () => {
       expect(url).toContain("/bulk-fundamentals/US");
       expect(url).toContain("symbols=AAPL%2CMSFT");
     });
+
+    it("fundamentalsV1_1() calls /v1.1/fundamentals/{ticker}", async () => {
+      const client = createClient();
+      await client.fundamentalsV1_1("AAPL.US", { filter: "Earnings" });
+
+      const url = getCalledUrl(fetch);
+      expect(url).toContain("/v1.1/fundamentals/AAPL.US");
+      expect(url).toContain("filter=Earnings");
+    });
+
+    it("bulkFundamentalsV1_1() calls /v1.1/bulk-fundamentals/{exchange}", async () => {
+      const client = createClient();
+      await client.bulkFundamentalsV1_1("US", { symbols: "AAPL,MSFT" });
+
+      const url = getCalledUrl(fetch);
+      expect(url).toContain("/v1.1/bulk-fundamentals/US");
+      expect(url).toContain("symbols=AAPL%2CMSFT");
+    });
   });
 
   // ── Delegation: News & Sentiment ────────────────────────────────────────