Fastifyis not defined and fastify-postgres Fastify.pg.connect not working - node.js

Question

I have defined my fastify like so:
const fastify = require('fastify')({logger: true})
fastify
.register(require('./setup/envs'))
.after(async (err) => {
if (err) console.log(err);
fastify.register(require('./setup/db'))
await fastify.after()
fastify.register(require('./setup/jwt'))
await fastify.after()
fastify.register(require('./setup/auth'))
await fastify.after()
// load routes
// fastify.register(require('./routes/test'))
fastify.register(require('./routes/posts/index'), { prefix: '/posts' })
})
const start = async () => {
try {
await fastify.ready()
fastify.listen(3000)
} catch (e) {
fastify.log.error(e)
process.exit(1)
}
}
start();
Now in my post routes, I have the following:
const postRoutes = require('../../controllers/posts');
async function PostRoutes(fastify, options) {
fastify.addHook('preValidation', fastify.verifyJWT)
fastify.addHook('preHandler', function (req, reply, done) {
if (req.body) {
req.log.info({ body: req.body }, 'parsed body')
}
if (req.params) {
req.log.info({ params: req.body }, 'parsed params')
}
done()
})
// get all posts
fastify.get('/:limit/:page', postRoutes.getPosts)
fastify.post('/signup', async (req, reply) => {
// some code
const token = fastify.jwt.sign({ test: 'hello' })
reply.send({ token })
})
fastify.get(
"/test-auth",
async function(request, reply) {
return { test: 'auth' }
}
)
}
module.exports = PostRoutes;
and my controller file is the following:
const fastify = require('fastify');
const getPosts = async (req, reply) => {
try {
const client = await fastify.pg.connect()
const { rows } = await client.query(
'SELECT * FROM POSTS LIMIT $1 OFFSET $2;', [req.params.limit, req.params.offset],
)
client.release()
return rows
} catch (e) {
req.log.error('Getting posts failed with params')
throw new Error(e)
}
}
module.exports = {
getPosts,
};
The const client = await fastify.pg.connect() is giving me fastify is not defined and if I require it by adding const fastify = require('fastify') at the top, I get TypeError: Cannot read properties of undefined (reading 'connect').
the following is my db.js:
const fastifyPlugin = require('fastify-plugin');
const fastifyPostgres = require('fastify-postgres');
async function dbConnector (fastify, options) {
const dbUser = encodeURIComponent(fastify.config.DATABASE_USERNAME)
const dbPassword = encodeURIComponent(fastify.config.DATABASE_PASSWORD);
const dbHost = encodeURIComponent(process.env.DATABASE_HOST);
const dbName = encodeURIComponent(fastify.config.DATABASE_NAME);
fastify.register(fastifyPostgres, {
connectionString: `postgres://${dbUser}:${dbPassword}#${dbHost}/${dbName}`
})
}
// Wrapping a plugin function with fastify-plugin exposes the decorators
// and hooks, declared inside the plugin to the parent scope.
module.exports = fastifyPlugin(dbConnector);

Answer 1

I had to change my route to
fastify.get('/:limit/:page', (req, reply) => postRoutes.getPosts(fastify, req, reply))
and then I was able to access the fastify object in my controller.