From 37a4a26e6548597a735c690b026713dff8a40031 Mon Sep 17 00:00:00 2001
From: Morgan Mccauley <morgan@mccauley.co.nz>
Date: Wed, 28 Jun 2023 14:32:58 +1200
Subject: [PATCH] feat: Write latest post block height to Grafana

---
 .../latest-post-metrics-writer.js             | 24 +++++++++++++++++++
 indexer-js-queue-handler/serverless.yml       |  4 ++++
 2 files changed, 28 insertions(+)
 create mode 100644 indexer-js-queue-handler/latest-post-metrics-writer.js

diff --git a/indexer-js-queue-handler/latest-post-metrics-writer.js b/indexer-js-queue-handler/latest-post-metrics-writer.js
new file mode 100644
index 000000000..0bece2657
--- /dev/null
+++ b/indexer-js-queue-handler/latest-post-metrics-writer.js
@@ -0,0 +1,24 @@
+import fetch from "node-fetch";
+import AWS from "aws-sdk";
+
+import Metrics from "./metrics";
+
+export const handler = async () => {
+    const metrics = new Metrics("QueryAPI");
+
+    const response = await fetch("https://api.near.social/index", {
+        method: "POST",
+        body: JSON.stringify({
+            action: "post",
+            key: "main",
+            options: {
+                limit: 1,
+                order: "desc",
+            },
+        }),
+    });
+
+    const [{ blockHeight }] = await response.json();
+
+    await metrics.putBlockHeight("social.near", "posts", blockHeight);
+};
diff --git a/indexer-js-queue-handler/serverless.yml b/indexer-js-queue-handler/serverless.yml
index 62f09cede..c89b29d5c 100644
--- a/indexer-js-queue-handler/serverless.yml
+++ b/indexer-js-queue-handler/serverless.yml
@@ -39,6 +39,10 @@ constructs:
       timeout: 15 # 1.5 minutes as lift multiplies this value by 6 (https://github.com/getlift/lift/blob/master/docs/queue.md#retry-delay)
 
 functions:
+  latestPostMetricsWriter:
+    handler: latest-post-metrics-writer.handler
+    events:
+      - schedule: rate(1 minute)
 
 plugins:
   - serverless-lift