category |
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@Firebase |
Reactive Firestore binding. Making it straightforward to always keep your local data in sync with remotes databases.
import { computed, ref } from 'vue'
import { initializeApp } from 'firebase/app'
import { collection, doc, getFirestore, limit, orderBy, query } from 'firebase/firestore'
import { useFirestore } from '@vueuse/firebase/useFirestore'
const app = initializeApp({ projectId: 'MY PROJECT ID' })
const db = getFirestore(app)
const todos = useFirestore(collection(db, 'todos'))
// or for doc reference
const user = useFirestore(doc(db, 'users', 'my-user-id'))
// you can also use ref value for reactive query
const postsLimit = ref(10)
const postsQuery = computed(() => query(collection(db, 'posts'), orderBy('createdAt', 'desc'), limit(postsLimit.value)))
const posts = useFirestore(postsQuery)
// you can use the boolean value to tell a query when it is ready to run
// when it gets falsy value, return the initial value
const userId = ref('')
const userQuery = computed(() => userId.value && doc(db, 'users', userId.value))
const userData = useFirestore(userQuery, null)
You can reuse the db reference by passing autoDispose: false
const todos = useFirestore(collection(db, 'todos'), undefined, { autoDispose: false })
or use createGlobalState
from the core package
// store.js
import { createGlobalState } from '@vueuse/core'
import { useFirestore } from '@vueuse/firebase/useFirestore'
export const useTodos = createGlobalState(
() => useFirestore(collection(db, 'todos')),
)
// app.js
import { useTodos } from './store'
export default {
setup() {
const todos = useTodos()
return { todos }
},
}