feat(seo): add compression, cache-control headers, configurable frontend dist path

2026-08-02 10:20:22 +02:00
parent 26433fa9c7
commit 5ff8a865e8
5 changed files with 160 additions and 2 deletions
@@ -0,0 +1,59 @@
+import { describe, it, expect, beforeAll, afterAll } from 'vitest';
+import request from 'supertest';
+import fs from 'node:fs/promises';
+import path from 'node:path';
+import os from 'node:os';
+import { createApp } from '../src/app.js';
+import { getPrismaClient, closePrismaClient } from '../src/db.js';
+import { loadConfig } from '../src/config.js';
+import { ensureStorageDirs } from '../src/storage.js';
+
+let app;
+let prisma;
+let config;
+let frontendDist;
+
+beforeAll(async () => {
+  frontendDist = await fs.mkdtemp(path.join(os.tmpdir(), 'converter-dist-'));
+  await fs.mkdir(path.join(frontendDist, 'fr'), { recursive: true });
+  await fs.mkdir(path.join(frontendDist, 'assets'), { recursive: true });
+  await fs.writeFile(
+    path.join(frontendDist, 'fr', 'index.html'),
+    `<html><body>fr home ${'x'.repeat(2000)}</body></html>`
+  );
+  await fs.writeFile(path.join(frontendDist, 'assets', 'app.abc123.js'), 'console.log(1)');
+
+  config = {
+    ...loadConfig(),
+    storageDir: await fs.mkdtemp(path.join(os.tmpdir(), 'converter-api-')),
+    frontendDist,
+  };
+  await ensureStorageDirs(config);
+  prisma = getPrismaClient(config);
+  app = createApp(config, prisma);
+});
+
+afterAll(async () => {
+  await closePrismaClient();
+  await fs.rm(config.storageDir, { recursive: true, force: true });
+  await fs.rm(frontendDist, { recursive: true, force: true });
+});
+
+describe('static asset serving', () => {
+  it('sends HTML pages with Cache-Control: no-cache', async () => {
+    const response = await request(app).get('/fr/');
+    expect(response.status).toBe(200);
+    expect(response.headers['cache-control']).toBe('no-cache');
+  });
+
+  it('sends hashed assets with a long immutable Cache-Control', async () => {
+    const response = await request(app).get('/assets/app.abc123.js');
+    expect(response.status).toBe(200);
+    expect(response.headers['cache-control']).toBe('public, max-age=31536000, immutable');
+  });
+
+  it('compresses responses when the client accepts it', async () => {
+    const response = await request(app).get('/fr/').set('Accept-Encoding', 'gzip');
+    expect(response.headers['content-encoding']).toBe('gzip');
+  });
+});