CODEWITHSUNDEEP
databasefirebaserestgoogle-cloud-firestore
user6247444
user6247444

Reputation:

Firestore: How to update an existing field

I am trying to update a Firestore document field I have set earlier through REST API.

I have a document (users) which contains all user data. Now I like to be able to update the field 'testfield' - which is part of this user data - through REST API.

I have sent a HTTP POST Request to https://firestore.googleapis.com/v1/projects/[MY_PROJECT_ID]/databases/(default)/documents/users?documentId=-example

with request body 

{
    "fields": {
        "testfield": {
            "booleanValue": true
        }
    }
}

All I get by now is an error message telling me that the document already exists, what I know, since I am trying to update this document.

Upvotes: 0

Views: 285

Answers (1)

Doug Stevenson
Doug Stevenson

Reputation: 317497

According to the Firestore REST API documentation, you use a PATCH request to update a field.

A POST isn't going to work, since that's used for creating new documents. That explains the error that the document already exists.

Upvotes: 1

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