Using the set() method in Firestore with the merge option does not function properly when implemented in Node.js

const user = {name : myUsername};
databaseRef.set(user, { merge: true });

An error is occurring which states:

Invalid use of type "undefined" as a Firestore argument.

Despite following the Firebase documentation here, and seeing others use it in online examples. However, it works fine when I remove the option argument and only do:

databaseRef.set(user);

I am utilizing the firebase-admin npm package.

Any suggestions on what might be causing this issue?

Appreciate any input!

Answer №1

At the moment, Node.js does not have the functionality to merge data directly. However, you can achieve a similar outcome by using the update method instead. If the specified node is not found, it will be created automatically.

fileRef.update(data);

Answer №2

After some investigation, I discovered that the issue lied within my data parameter. It turns out that one of the entries was actually set to undefined. Special thanks to @mtflud for pointing this out, and my apologies for initially ignoring your advice.

Upon correcting my data parameter, NodeJs had no issues with {merge : true} and now everything is functioning correctly.

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