How this extension works
Use this extension to get toxicity scores from Perspective
API for comments
written to a Cloud Firestore collection.
This extension runs Perspective API on the text field and collection you
configure. The API uses machine learning models to score the perceived impact a
comment might have on a conversation by evaluating that comment across a range
of emotional concepts, called attributes. When you install this extension, you
will specify the attributes you want to receive scores for. Perspective’s main
attribute is TOXICITY, defined as “a rude, disrespectful, or unreasonable
comment that is likely to make you leave a discussion”. See a list of all
available attributes on our developer site.
Scores are retrieved when a new document is added to your collection or an
existing document is modified.
By default, you’re granted quota for 1 query per second (QPS) to Perspective
API. For additional QPS, fill out a quota increase
request as needed.
Note: If you add or update documents at a rate higher than your allotted QPS,
you may exceed quota and the extension will fail to score your documents.
Perspective API is free for all amounts of quota. However, the extension
uses Firebase and Google Cloud Platform services which may have associated
- Cloud Firestore
- Cloud Functions
When you use Firebase Extensions, you’re only charged for the underlying
resources that you use. A paid-tier billing plan is only required if the
extension uses a service that requires a paid-tier plan, for example calling to
a Google Cloud API or making outbound network requests to non-Google services.
All Firebase services offer a free tier of usage.
Learn more about Firebase billing.