[Bug]: Firestore queries fail when trying to fetch an object with Blob type

[nidhi-nair]

Is there an existing issue for this?

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Description

From a user query, we figured that the server was throwing an error when trying to parse a Blob type. Here is the error log:

org.springframework.core.codec.CodecException: Type definition error: [simple type, class com.google.cloud.firestore.Blob]; nested exception is com.fasterxml.jackson.databind.exc.InvalidDefinitionException: No serializer found for class com.google.cloud.firestore.Blob and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_EMPTY_BEANS)

The Blob type seems to only have private properties that are inaccessible. We'll need to check if our mapper needs to be marked with additional visibility

Steps To Reproduce

Internal slack message

Public Sample App

No response

Version

Cloud