firestore get all documents in collection
// retrieve a collection
db.collection('documents')
.get()
.then(querySnapshot => {
const documents = querySnapshot.docs.map(doc => doc.data())
// do something with documents
})
// retrieve a document
db.collection('documents')
.doc(documentId)
.get()
.then(snapshot => {
const document = snapshot.data()
// do something with document
})get data in from a collection firestore
db.collection("users").get().then((querySnapshot) => {
querySnapshot.forEach((doc) => {
console.log(`${doc.id} => ${doc.data()}`);
});get one document based on id in firestore
//retrieve one document and save it to userDetails
const [userDetails, setUserDetails] = useState('')
db.collection('users').doc(id).get()
.then(snapshot => setUserDetails(snapshot.data()))firestore get id of new document
async function addCity(newCity) {
const { id } = await db.collection("cities").add(newCity)
console.log("the new city's id:", id)
}get document id from firestore
##get document id from firestore
https://stackoverflow.com/questions/53605611/firestore-flutter-how-can-i-get-document-idget doc id firestore
const racesCollection: AngularFirestoreCollection<Race>;
return racesCollection.snapshotChanges().map(actions => {
return actions.map(a => {
const data = a.payload.doc.data() as Race;
data.id = a.payload.doc.id;
return data;
});
});Copyright © 2021 Codeinu
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