How to connect to Firebase Firestore?

Question

I want to get data from a Firestore Database, however, instead of getting an Array of 1 element, I get [Al] which I'm not sure what it is.

This is the code I have in my Index.html. I have changed the information inside the config object for security reasons here.

And this is what I have inside my app.js file

db.collection('cafes').get().then((snapshot) => {
  console.log(snapshot.docs);
}).catch(err => {
  console.log(err);
});

user_7015400 · Answer

You need to do the following to get the data:

db.collection('cafes').get().then((snapshot) => {
 snapshot.forEach((doc) => {
 console.log(doc.id, " => ", doc.data());
 });
}).catch(err => {
  console.log(err);
});

doc.data() will contain the data of the documents.

https://firebase.google.com/docs/firestore/query-data/get-data#get_all_documents_in_a_collection

user_13358251 · Answer

var docRef = db.collection("cafes").doc("cafe_name");

docRef.get().then(function(doc) {
    console.log("document data:", doc.data());
}).catch(function(error) {
    console.log("Error getting data:", error);
});

or

db.collection("cafes").doc("cafe_name").get().then(function(doc) {
    console.log("document data:", doc.data());
}).catch(function(error) {
    console.log("Error getting data:", error);
});

You need to change "cafe_name" to the name of an item of cafes.

How to connect to Firebase Firestore?

2 Answers