Fastify get item by title always returning raw JSON as null - fastify

Question

I'm just starting with Fastify and ran into an issue where I started creating a get request to get an item by its title, but it keeps giving me a response of null when I try and log the request.body.
My get request:
// Get points by title
fastify.route({
method: 'GET',
url: '/pointz/title',
handler: (request, reply) => {
return request.body
}
})
My get request in postman (as code):
curl --location --request GET 'http://localhost:3000/pointz/title' \
--header 'Content-Type: application/json' \
--data-raw '{
"title": "test"
}'
Screenshot of my input and output in Postman
The expected result would be that the request returns a body that contains the JSON that's being sent, so I can change the code to access request.body.title with a return value of test.
UPDATE:
Found a workaround for now. If I change the GET request to a POST request it works just like it's supposed to. I question however if this is considered good practice.

Answer 1

As discussed in this GitHub Issue GET request validated scheme body?
the body should not be send in GET request, a datailed answer about it
and fastify ignore it by default.
But legacy code does, and if you need to support it, you have to consume the raw request:
const fastify = require('fastify')({ logger: true })
fastify.get('/', async (req) => {
let body = ''
for await (const data of req.raw) {
body += data.toString()
}
return body
})
fastify.listen(3000)
Then your curl command will works as expected.
const got = require('got')
got.get('http://localhost:3000/', {
json: { hello: 'world' },
allowGetBody: true
}).then(res => {
console.log('Returned = ' + res.body)
})