Vue.js: What is the difference between readBody and getQuery in Nitro?

1// POST /api/posts
2export default defineEventHandler(async (event) => {
3    const body = await readBody(event)
4    return { received: body }
5})

1// GET /api/posts?page=1
2export default defineEventHandler((event) => {
3    const query = getQuery(event)
4    return { page: query.page }
5})