This is my code:

function saveID(sender_psid,plete){
   let data = new Object();
   data.TASK= plete;
   data.ID = sender_psid;
   db.collection('users').add(data);
}

Right now a new document is created every time the field plete is updated. I want to update the value of plete in firestore instead of creating a new document each time.

This is my code:

function saveID(sender_psid,plete){
   let data = new Object();
   data.TASK= plete;
   data.ID = sender_psid;
   db.collection('users').add(data);
}

Right now a new document is created every time the field plete is updated. I want to update the value of plete in firestore instead of creating a new document each time.

• javascript
• node.js
• firebase
• google-cloud-firestore

Share Improve this question Follow edited Jul 10, 2018 at 19:25 Doug Stevenson 319k3636 gold badges456456 silver badges473473 bronze badges asked Jul 10, 2018 at 19:15 RashikRashik 1,16422 gold badges1616 silver badges3636 bronze badges

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1 Answer 1

Sorted by: Reset to default 6

If you want to update an existing document, build a DocumentReference that points to the document to update, and use its update() method to indicate which fields should be changed. The documentation goes over this and gives a code sample:

var cityRef = db.collection('cities').doc('DC');

// Set the 'capital' field of the city
var updateSingle = cityRef.update({ capital: true });