implementing snapshots

dashboard/server/api/metrics/[project_id]/data/referrers.ts

@@ -22,13 +22,25 @@ export default defineEventHandler(async event => {
     const limit = getRequestHeader(event, 'x-query-limit');
     const numLimit = parseInt(limit || '10');
 
+    const from = getRequestHeader(event, 'x-from');
+    const to = getRequestHeader(event, 'x-to');
+
+    if (!from || !to) return setResponseStatus(event, 400, 'x-from and x-to headers missing');
 
     return await Redis.useCache({
-        key: `referrers:${project_id}:${numLimit}`,
+        key: `referrers:${project_id}:${numLimit}:${from}:${to}`,
         exp: DATA_EXPIRE_TIME
     }, async () => {
         const referrers: ReferrersAggregated[] = await VisitModel.aggregate([
-            { $match: { project_id: project._id }, },
+            {
+                $match: {
+                    project_id: project._id,
+                    created_at: {
+                        $gte: new Date(from),
+                        $lte: new Date(to)
+                    }
+                },
+            },
             { $group: { _id: "$referrer", count: { $sum: 1, } } },
             { $sort: { count: -1 } },
             { $limit: numLimit }