Initial snapshot - OpenTelemetry demo 2.1.3 -f

1 files changed, 21 insertions, 0 deletions

diff --git a/src/frontend/gateways/rpc/Recommendations.gateway.ts b/src/frontend/gateways/rpc/Recommendations.gateway.ts
new file mode 100644
index 0000000..c58a470
--- /dev/null
+++ b/src/frontend/gateways/rpc/Recommendations.gateway.ts
@@ -0,0 +1,21 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+import { ChannelCredentials } from '@grpc/grpc-js';
+import { ListRecommendationsResponse, RecommendationServiceClient } from '../../protos/demo';
+
+const { RECOMMENDATION_ADDR = '' } = process.env;
+
+const client = new RecommendationServiceClient(RECOMMENDATION_ADDR, ChannelCredentials.createInsecure());
+
+const RecommendationsGateway = () => ({
+  listRecommendations(userId: string, productIds: string[]) {
+    return new Promise<ListRecommendationsResponse>((resolve, reject) =>
+      client.listRecommendations({ userId, productIds }, (error, response) =>
+        error ? reject(error) : resolve(response)
+      )
+    );
+  },
+});
+
+export default RecommendationsGateway();