CODEWITHSUNDEEP
google-cloud-firestore
Anuarbek Safiyev
Anuarbek Safiyev

Reputation: 37

Firestore: set post id

How can I set id of post that I'm adding? I thought that getItemNextKey() returns id that will be assigned for the post, but it's not. 

AddItem(data, downloadURLs) {
    data.id= this.getItemNextKey(); // Persist a document id
    data.upload = downloadURLs;
    // console.log('this.uploadService.downloadURLs: ' + downloadURLs);
    // console.log('data.upload: ' + data.upload);

    this.db.collection('items').add(data);
  }

Upvotes: 0

Views: 358

Answers (2)

Anuarbek Safiyev
Anuarbek Safiyev

Reputation: 37

I did this and it works now. 

// Add a new document with a generated id
    var addDoc = this.db.collection('items').add(data).then(ref => {
      var updateNested = this.db.collection('items').doc(ref.id).update({
        id: ref.id
      });
    });

Upvotes: 1

mrkernelpanic
mrkernelpanic

Reputation: 4451

As stated in the official docs

When you use set() to create a document, you must specify an ID for the document to create. For example:

db.collection("cities").doc("new-city-id").set(data);

If you dont want to set an ID yourself you can use add

But sometimes there isn't a meaningful ID for the document, and it's more convenient to let Cloud Firestore auto-generate an ID for you. You can do this by calling add():

Upvotes: 0

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