Export group expenses as JSON (Closes #42)

src/app/groups/[groupId]/expenses/export/json/route.ts

@@ -0,0 +1,39 @@
+import { getPrisma } from '@/lib/prisma'
+import { NextResponse } from 'next/server'
+
+export async function GET(
+  req: Request,
+  { params: { groupId } }: { params: { groupId: string } },
+) {
+  console.log({ groupId })
+  const prisma = await getPrisma()
+  const group = await prisma.group.findUnique({
+    where: { id: groupId },
+    select: {
+      id: true,
+      name: true,
+      currency: true,
+      expenses: {
+        select: {
+          expenseDate: true,
+          title: true,
+          category: { select: { grouping: true, name: true } },
+          amount: true,
+          paidById: true,
+          paidFor: { select: { participantId: true, shares: true } },
+          isReimbursement: true,
+          splitMode: true,
+        },
+      },
+      participants: { select: { id: true, name: true } },
+    },
+  })
+  if (!group)
+    return NextResponse.json({ error: 'Invalid group ID' }, { status: 404 })
+  return NextResponse.json(group, {
+    headers: {
+      'content-type': 'application/json',
+      'content-disposition': `attachment; filename="${group.name}.json"`,
+    },
+  })
+}