CODEWITHSUNDEEP
javascriptfirebasefirebase-realtime-databasegoogle-cloud-firestore
Ranson Namba
Ranson Namba

Reputation: 335

Firebase .set() with merge option error second argument must be valid a function

I'm trying to add merge:true option to my .set() write following the docs and I can't figure out why my syntax is invalid since I'm copying the docs.. My error

index.cjs.js:1751 Uncaught Error: Reference.set failed: second argument must be a valid function.

My code

    firebase.database().ref('react').set({
      data
    }, {merge: true});

Trying to emulate this snippet from the docs

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

var setWithMerge = cityRef.set({
    capital: true
}, { merge: true });

Ultimate goal being to push to the database without overwriting.

Upvotes: 0

Views: 420

Answers (1)

Doug Stevenson
Doug Stevenson

Reputation: 317760

The snippet you're looking at from the documentation is for Cloud Firestore. The code you're attempting to write is accessing Realtime Database. They are not the same product, and their SDKs have different APIs. Be sure that you're looking at the documentation for the product that you actually want to work with.

Upvotes: 1

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