feat: add backend

src/routes/MultiSearchRoute.ts

@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2019 StApps
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+import {
+  SCMultiSearchRequest,
+  SCMultiSearchResponse,
+  SCMultiSearchRoute,
+  SCSearchResponse,
+  SCTooManyRequestsErrorResponse,
+} from '@openstapps/core';
+import { BulkStorage } from '../storage/BulkStorage';
+import { createRoute } from './Route';
+
+const multiSearchRouteModel = new SCMultiSearchRoute();
+
+/**
+ * Implementation of the multi search route (SCMultiSearchRoute)
+ */
+export const multiSearchRouter = createRoute<SCMultiSearchResponse | SCTooManyRequestsErrorResponse>(
+  multiSearchRouteModel,
+  async (request: SCMultiSearchRequest, app) => {
+
+    const bulkMemory: BulkStorage = app.get('bulk');
+    const queryNames = Object.keys(request);
+
+    if (queryNames.length > 5) {
+      return new SCTooManyRequestsErrorResponse(app.get('isProductiveEnvironment'));
+    }
+
+    // get a map of promises for each query
+    const searchRequests = queryNames.map((queryName) => {
+      return bulkMemory.database.search(request[queryName]);
+    });
+
+    const listOfSearchResponses = await Promise.all(searchRequests);
+
+    const response: { [queryName: string]: SCSearchResponse } = {};
+    queryNames.forEach((queryName, index) => {
+      response[queryName] = listOfSearchResponses[index];
+    });
+
+    return response;
+  },
+);