feat: add new and total users data route

apps/openpage-api/app/growth/new-users/route.ts

@@ -0,0 +1,25 @@
+import cors from '@/lib/cors';
+import { getUserMonthlyGrowth } from '@/lib/growth/get-user-monthly-growth';
+
+export async function GET(request: Request) {
+  const monthlyUsers = await getUserMonthlyGrowth();
+
+  return cors(
+    request,
+    new Response(JSON.stringify(monthlyUsers), {
+      status: 200,
+      headers: {
+        'content-type': 'application/json',
+      },
+    }),
+  );
+}
+
+export function OPTIONS(request: Request) {
+  return cors(
+    request,
+    new Response(null, {
+      status: 204,
+    }),
+  );
+}

apps/openpage-api/app/growth/route.ts

@@ -0,0 +1,37 @@
+import type { NextRequest } from 'next/server';
+
+import cors from '@/lib/cors';
+
+const paths = [
+  { path: '/total-customers', description: 'Total Customers' },
+  { path: '/total-users', description: 'Total Users' },
+  { path: '/new-users', description: 'New Users' },
+  { path: '/completed-documents', description: 'Completed Documents per Month' },
+  { path: '/total-completed-documents', description: 'Total Completed Documents' },
+];
+
+export function GET(request: NextRequest) {
+  const url = request.nextUrl.toString();
+  const apis = paths.map(({ path, description }) => {
+    return { path: url + path, description };
+  });
+
+  return cors(
+    request,
+    new Response(JSON.stringify(apis), {
+      status: 200,
+      headers: {
+        'content-type': 'application/json',
+      },
+    }),
+  );
+}
+
+export function OPTIONS(request: Request) {
+  return cors(
+    request,
+    new Response(null, {
+      status: 204,
+    }),
+  );
+}

apps/openpage-api/app/growth/total-users/route.ts

@@ -0,0 +1,25 @@
+import cors from '@/lib/cors';
+import { getUserMonthlyGrowth } from '@/lib/growth/get-user-monthly-growth';
+
+export async function GET(request: Request) {
+  const totalUsers = await getUserMonthlyGrowth();
+
+  return cors(
+    request,
+    new Response(JSON.stringify(totalUsers), {
+      status: 200,
+      headers: {
+        'content-type': 'application/json',
+      },
+    }),
+  );
+}
+
+export function OPTIONS(request: Request) {
+  return cors(
+    request,
+    new Response(null, {
+      status: 204,
+    }),
+  );
+}

apps/openpage-api/app/route.ts

@@ -5,6 +5,7 @@ import cors from '@/lib/cors';
 const paths = [
   { path: 'github', description: 'GitHub Data' },
   { path: 'community', description: 'Community Data' },
+  { path: 'growth', description: 'Growth Data' },
 ];
 
 export function GET(request: NextRequest) {

apps/openpage-api/lib/growth/get-user-monthly-growth.ts

@@ -0,0 +1,38 @@
+import { DateTime } from 'luxon';
+
+import { kyselyPrisma, sql } from '@documenso/prisma';
+
+export const getUserMonthlyGrowth = async (type: 'count' | 'cumulative' = 'count') => {
+  const qb = kyselyPrisma.$kysely
+    .selectFrom('User')
+    .select(({ fn }) => [
+      fn<Date>('DATE_TRUNC', [sql.lit('MONTH'), 'User.createdAt']).as('month'),
+      fn.count('id').as('count'),
+      fn
+        .sum(fn.count('id'))
+        // eslint-disable-next-line @typescript-eslint/consistent-type-assertions, @typescript-eslint/no-explicit-any
+        .over((ob) => ob.orderBy(fn('DATE_TRUNC', [sql.lit('MONTH'), 'User.createdAt']) as any))
+        .as('cume_count'),
+    ])
+    .groupBy('month')
+    .orderBy('month', 'desc')
+    .limit(12);
+
+  const result = await qb.execute();
+
+  const transformedData = {
+    labels: result.map((row) => DateTime.fromJSDate(row.month).toFormat('MMM yyyy')).reverse(),
+    datasets: [
+      {
+        label: type === 'count' ? 'New Users' : 'Total Users',
+        data: result
+          .map((row) => (type === 'count' ? Number(row.count) : Number(row.cume_count)))
+          .reverse(),
+      },
+    ],
+  };
+
+  return transformedData;
+};
+
+export type GetUserMonthlyGrowthResult = Awaited<ReturnType<typeof getUserMonthlyGrowth>>;