feat: Implement get folders API endpoint

packages/backend/src/controllers/api/v1/folders/get-folders.js

@@ -0,0 +1,9 @@
+import { renderObject } from '../../../../helpers/renderer.js';
+
+export default async (request, response) => {
+  const folders = await request.currentUser
+    .$relatedQuery('folders')
+    .orderBy('name', 'asc');
+
+  renderObject(response, folders);
+};

packages/backend/src/controllers/api/v1/folders/get-folders.test.js

@@ -0,0 +1,53 @@
+import { describe, it, expect, beforeEach } from 'vitest';
+import request from 'supertest';
+import app from '../../../../app.js';
+import createAuthTokenByUserId from '../../../../helpers/create-auth-token-by-user-id.js';
+import { createUser } from '../../../../../test/factories/user.js';
+import { createFolder } from '../../../../../test/factories/folder.js';
+import { createPermission } from '../../../../../test/factories/permission.js';
+import getFoldersMock from '../../../../../test/mocks/rest/api/v1/folders/get-folders.js';
+
+describe('GET /api/v1/folders', () => {
+  let folderOne, folderTwo, currentUser, currentUserRole, token;
+
+  beforeEach(async () => {
+    currentUser = await createUser();
+    currentUserRole = await currentUser.$relatedQuery('role');
+
+    folderOne = await createFolder({
+      name: 'Folder One',
+      userId: currentUser.id,
+    });
+
+    folderTwo = await createFolder({
+      name: 'Folder Two',
+      userId: currentUser.id,
+    });
+
+    const anotherUser = await createUser();
+
+    await createFolder({
+      name: 'Folder Three',
+      userId: anotherUser.id,
+    });
+
+    token = await createAuthTokenByUserId(currentUser.id);
+  });
+
+  it('should return folders of the current user', async () => {
+    await createPermission({
+      action: 'read',
+      subject: 'Flow',
+      roleId: currentUserRole.id,
+    });
+
+    const response = await request(app)
+      .get('/api/v1/folders')
+      .set('Authorization', token)
+      .expect(200);
+
+    const expectedPayload = await getFoldersMock([folderOne, folderTwo]);
+
+    expect(response.body).toStrictEqual(expectedPayload);
+  });
+});