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⚡ Bolt: Optimize project tasks retrieval latency #412

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⚡ Bolt: Optimize project tasks retrieval latency #412

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41 changes: 21 additions & 20 deletions backend/src/routes/projects.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -252,16 +252,6 @@ router.get('/:id/tasks', validateIdParam('id'), async (req: AuthRequest, res, ne
const { status } = req.query;
const offset = calculateOffset(page, limit);

// Verificar se projeto existe e pertence ao usuário
const project = await queryOne(
'SELECT id FROM projects WHERE id = $1 AND user_id = $2',
[id, req.userId]
);

if (!project) {
return res.status(404).json({ error: 'Projeto não encontrado' });
}

let whereClause = 'WHERE user_id = $1 AND project_id = $2';
const params: (string | number)[] = [req.userId!, id];
let paramIndex = 3;
Expand All @@ -272,21 +262,32 @@ router.get('/:id/tasks', validateIdParam('id'), async (req: AuthRequest, res, ne
paramIndex++;
}

const countResult = await query(
`SELECT COUNT(*) as total FROM tasks ${whereClause}`,
params
) as { total: string }[];
const total = parseInt(countResult?.[0]?.total || '0');

const allowedSortFields = ['created_at', 'updated_at', 'due_date', 'priority', 'title'];
const safeSortBy = allowedSortFields.includes(sortBy as string) ? sortBy as string : 'created_at';

const tasks = await query(
`SELECT * FROM tasks ${whereClause}
// ⚡ Performance Optimization: Execute all queries concurrently
const [project, countResult, tasks] = await Promise.all([
queryOne(
'SELECT id FROM projects WHERE id = $1 AND user_id = $2',
[id, req.userId]
),
query(
`SELECT COUNT(*) as total FROM tasks ${whereClause}`,
params
) as Promise<{ total: string }[]>,
query(
`SELECT * FROM tasks ${whereClause}
ORDER BY ${safeSortBy} ${order}, created_at DESC
LIMIT $${paramIndex} OFFSET $${paramIndex + 1}`,
[...params, limit, offset]
);
[...params, limit, offset]
)
]);

if (!project) {
return res.status(404).json({ error: 'Projeto não encontrado' });
}

const total = parseInt(countResult?.[0]?.total || '0');

res.json(buildPaginatedResponse(tasks || [], total, { page, limit, sortBy, order }));
} catch (error: unknown) {
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