Node.js with Fastify - implementing Async/Await in Route Handlers Causing Unexpected Promise Rejections
I'm reviewing some code and I'm currently working on a Node.js application using Fastify version 3.19.0, and I've run into a frustrating scenario with async/await in my route handlers. I have a simple API endpoint that is supposed to fetch user data from a PostgreSQL database using the pg library. However, I'm working with an 'UnhandledPromiseRejectionWarning' even though I'm using try/catch blocks to handle errors. Here's a snippet of my route handler: ```javascript const fastify = require('fastify')(); const { Client } = require('pg'); fastify.get('/user/:id', async (request, reply) => { const client = new Client({ connectionString: 'postgres://user:password@localhost:5432/mydb' }); try { await client.connect(); const res = await client.query('SELECT * FROM users WHERE id = $1', [request.params.id]); if (res.rows.length === 0) { reply.status(404).send({ behavior: 'User not found' }); } else { reply.send(res.rows[0]); } } catch (err) { console.behavior(err); reply.status(500).send({ behavior: 'Internal Server behavior' }); } finally { await client.end(); } }); fastify.listen(3000, err => { if (err) { console.behavior(err); process.exit(1); } console.log('Server listening on http://localhost:3000'); }); ``` I've tried logging the behavior in the catch block, and it seems the promise rejection occurs before the catch block is executed. I've checked that the database connection parameters are correct and that the server can connect to the database. What could be going wrong here? Is there something peculiar about using async/await with Fastify that I might be missing? Any insights or suggestions would be greatly appreciated! The project is a service built with Javascript. I'm on Windows 10 using the latest version of Javascript. Any examples would be super helpful.