Error: Argument "data" is not a valid Document. Input is not a plain JavaScript object

Question

I am getting the error

Error: Argument "data" is not a valid Document. Input is not a plain JavaScript object.

when updating a document, using firebase admin SDK. Here the Typescript code.

var myDoc = new MyDoc();
myDoc.Public.Name = "Jonh Doe" //setup up content

admin.firestore()
     .collection('MyDocs')
     .doc("Id1")
     .set(myDoc);

Atul Sharma · Accepted Answer · 2024-01-28 23:56:11Z

6

In case someone else bump into the same issue, the solution is to simply use JSON to instantiate the object, like this:

var myDoc = {
        Public: {
            Name: "Jonh Doe"
        }
    } as MyDoc; //keep type to still get typescript compiler validations

edited Jan 28, 2024 at 23:56

Atul Sharma

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answered Feb 8, 2018 at 17:06

MiguelSlv

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Comments

Chad Bingham · Accepted Answer · 2018-02-19 23:35:13Z

5

I did something similar:

var myDoc = <MyDoc> {
    Public: {
        Name: "Jonh Doe"
    }
}

It is semantically the same, I just think it is a bit cleaner.

answered Feb 19, 2018 at 23:35

Chad Bingham

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Comments

Reza · Accepted Answer · 2018-03-10 22:31:24Z

2

I had same problem, in my case I'd forgot to add Content-Type:application/json to my header when sending request, and then the object was treated as string and I got that error.

answered Mar 10, 2018 at 22:31

Reza

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Comments

Murat Çimen · Accepted Answer · 2019-10-29 11:52:20Z

2

You can recreate js object via; {...__data}

return refDB.set({...__data}).then((newData) => {

})

answered Oct 29, 2019 at 11:52

Murat Çimen

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3 Comments

Murat Çimen Over a year ago

Can you more specific? What you get?. This is modern approach, maybe your nodejs version is not enough.

Akash Kundu Over a year ago

To be fair, I was using js instead of ts, which might have been it. However, I ended up using update() instead like this this.firestore.collection('influencers').doc(influencerDoc.id).update(data)

Murat Çimen Over a year ago

main issue for this error, newly created object has some prototype which is hidden element of array will verifiying from firebase library or api. If you created new object and pass data, problem partialy solved. But i didn't go deeper. So i don't have exact answer.

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