1 files changed, 19 insertions, 0 deletions
diff --git a/src/frontend/gateways/rpc/Ad.gateway.ts b/src/frontend/gateways/rpc/Ad.gateway.ts
new file mode 100644
index 0000000..1fd7244
--- /dev/null
+++ b/src/frontend/gateways/rpc/Ad.gateway.ts
@@ -0,0 +1,19 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+import { ChannelCredentials } from '@grpc/grpc-js';
+import { AdResponse, AdServiceClient } from '../../protos/demo';
+
+const { AD_ADDR = '' } = process.env;
+
+const client = new AdServiceClient(AD_ADDR, ChannelCredentials.createInsecure());
+
+const AdGateway = () => ({
+  listAds(contextKeys: string[]) {
+    return new Promise<AdResponse>((resolve, reject) =>
+      client.getAds({ contextKeys: contextKeys }, (error, response) => (error ? reject(error) : resolve(response)))
+    );
+  },
+});
+
+export default AdGateway();