feat: token transaction volume (#123)

.changeset/sixty-deers-wave.md

@@ -0,0 +1,5 @@
+---
+"@stackspulse/server": minor
+---
+
+Create new `/tokens/transaction-volume` route.

apps/server/src/api/tokens/transaction-volume.get.ts

@@ -0,0 +1,39 @@
+import { z } from "zod";
+import { sql } from "~/db/db";
+import { apiCacheConfig } from "~/lib/api";
+import { getValidatedQueryZod } from "~/lib/nitro";
+
+const tokensTransactionVolumeRouteSchema = z.object({
+  token: z.string(),
+});
+
+export default defineCachedEventHandler(async (event) => {
+  const query = await getValidatedQueryZod(
+    event,
+    tokensTransactionVolumeRouteSchema,
+  );
+
+  const result = await sql`
+SELECT
+    DATE_TRUNC('day', TO_TIMESTAMP(blocks.burn_block_time)) AS date,
+    SUM(ft_events.amount::numeric) AS daily_volume
+FROM
+    ft_events
+JOIN
+    blocks ON ft_events.index_block_hash = blocks.index_block_hash
+WHERE
+    ft_events.asset_identifier = ${query.token}
+    AND ft_events.canonical = true
+GROUP BY
+    DATE_TRUNC('day', TO_TIMESTAMP(blocks.burn_block_time))
+ORDER BY
+    date;
+  `;
+
+  const stats = result.map((row) => ({
+    date: row.date.slice(0, 10),
+    daily_volume: row.daily_volume,
+  }));
+
+  return stats;
+}, apiCacheConfig);