Add funnel queries

queries/analytics/pageview/getPageviewFunnel.ts

@@ -0,0 +1,97 @@
+import clickhouse from 'lib/clickhouse';
+import { CLICKHOUSE, PRISMA, runQuery } from 'lib/db';
+import prisma from 'lib/prisma';
+
+export async function getPageviewFunnel(
+  ...args: [
+    websiteId: string,
+    criteria: {
+      windowMinutes: number;
+      startDate: Date;
+      endDate: Date;
+      urls: string[];
+    },
+  ]
+) {
+  return runQuery({
+    [PRISMA]: () => relationalQuery(...args),
+    [CLICKHOUSE]: () => clickhouseQuery(...args),
+  });
+}
+
+async function relationalQuery(
+  websiteId: string,
+  criteria: {
+    windowMinutes: number;
+    startDate: Date;
+    endDate: Date;
+    urls: string[];
+  },
+) {
+  const { windowMinutes, startDate, endDate, urls } = criteria;
+  const { rawQuery, getFunnelQuery, toUuid } = prisma;
+  const { levelQuery, sumQuery, urlFilterQuery } = getFunnelQuery(urls, windowMinutes);
+
+  const params: any = [websiteId, startDate, endDate, ...urls];
+
+  return rawQuery(
+    `WITH level0 AS (
+        select session_id, url_path, created_at
+        from website_event
+        where url_path in (${urlFilterQuery})
+            website_event.website_id = $1${toUuid()}
+            and created_at between $2 and $3
+    ),level1 AS (
+        select session_id, url_path as level1_url, created_at as level1_created_at
+        from level0
+    )${levelQuery}
+    
+    SELECT ${sumQuery}
+    from level3;
+    `,
+    params,
+  );
+}
+
+async function clickhouseQuery(
+  websiteId: string,
+  criteria: {
+    windowMinutes: number;
+    startDate: Date;
+    endDate: Date;
+    urls: string[];
+  },
+) {
+  const { windowMinutes, startDate, endDate, urls } = criteria;
+  const { rawQuery, getBetweenDates, getFunnelQuery } = clickhouse;
+  const { columnsQuery, conditionQuery, urlParams } = getFunnelQuery(urls);
+
+  const params = {
+    websiteId,
+    window: windowMinutes * 60,
+    ...urlParams,
+  };
+
+  return rawQuery(
+    `
+    SELECT level,
+        count(*) AS count
+    FROM (
+    SELECT session_id,
+            windowFunnel({window:UInt32}, 'strict_order')
+            (
+                created_at,
+                ${columnsQuery}
+            ) AS level
+        FROM website_event
+        WHERE website_id = {websiteId:UUID}
+            and ${getBetweenDates('created_at', startDate, endDate)}             
+            AND (url_path in [${conditionQuery}])
+        GROUP BY 1
+        )
+    GROUP BY level
+    ORDER BY level ASC;
+    `,
+    params,
+  );
+}

queries/index.js

@@ -8,6 +8,7 @@ export * from './analytics/event/getEvents';
 export * from './analytics/eventData/getEventData';
 export * from './analytics/eventData/getEventDataUsage';
 export * from './analytics/event/saveEvent';
+export * from './analytics/pageview/getPageviewFunnel';
 export * from './analytics/pageview/getPageviewMetrics';
 export * from './analytics/pageview/getPageviewStats';
 export * from './analytics/session/createSession';