CODEWITHSUNDEEP
androidfirebasegoogle-cloud-firestore
Monu
Monu

Reputation: 907

Firestore - How create DocumentReference using path String

Firebase realtime database allowed to create refrence using

 var reference = db.ref(path);

Is there any method exist in firestore so that I can create document refrence using path String.

If method exists how can I find path string in android and then how create document reference in node.js using that path.

Upvotes: 15

Views: 20224

Answers (7)

Vishv Shroff
Vishv Shroff

Reputation: 71

In android (Kotlin) you can achieve this as below :

val firestore = FirebaseFirestore.getInstance()
val docRef = firestore.document(documentPath) as DocumentReference

My Collection Name is : Collection 1 So In mycase, documentPath is having value as : "Collection 1/Document ID"

While fetching the data you can use as

firestore.collection("Collection 1")
.whereEqualTo("Field name",docRef)
.get()
.addOnCompleteListener{...}

Upvotes: 0

KKSINGLA
KKSINGLA

Reputation: 1344

Use "." instead of "/" for path

FirebaseFirestore db = FirebaseFirestore.getInstance();

db.collection(FBConstant.Product.Head)
.whereEqualTo("rating.$id", true)

Upvotes: 0

dustydojo
dustydojo

Reputation: 719

For Firestore web version 9 (after August 25, 2021) you can use doc() to generate a reference with an id:

import { collection, doc, setDoc, getFirestore } from "firebase/firestore"; 

// Add a new document with a generated id
const newRef = doc(collection(getFirestore(), "user"));

const data = {
  id: newRef.id,
  firstName: 'John',
  lastName: 'Doe'
}

await setDoc(newRef, data);

Upvotes: 0

Rashid Iqbal
Rashid Iqbal

Reputation: 1271

you just need to define the path :

`users/${type}/${user.uid}/`

firestore
  .collection(`users/${type}/${user.uid}/`)
  .add(documentData)
  .then(function () {
    message = { message: "document added", type: ErrorType.success };
  })
  .catch(function (error) {
    message = { message: error, type: ErrorType.error };
  });

Upvotes: 0

Darren G
Darren G

Reputation: 878

For web/javascript, db.doc() will create a DocumentReference from a string:

let docRef = db.doc(pathString)

e.g. let userRef = db.doc('users/' + userId)

Upvotes: 4

Doug Stevenson
Doug Stevenson

Reputation: 317712

You can use FirebaseFirestore.document() and pass it the path of the document you want. Each document must be located within a collection. If you're looking for a document called documentId in a collection called collectionId, the path string will be collectionId/documentId.

Upvotes: 2

Alex Mamo
Alex Mamo

Reputation: 138969

Yes, you can achieve this also in Cloud Firestore. So these are your options:

FirebaseFirestore db = FirebaseFirestore.getInstance();

First option:

DocumentReference userRef = db.collection("company/users");

Second option:

DocumentReference userRef = db.document("company/users");

Third option:

DocumentReference userRef = db.collection("company").document("users");

Upvotes: 35

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