Invalid JSON payload received due to unrecognized field 'additionalProperties' in the configuration schema. Ensure the field is correctly specified.

The 400 Bad Request error you are encountering in the Google API, specifically with the messages related to an "Invalid JSON payload," is likely due to several possible reasons:

Malformed JSON Syntax

The error indicates that the JSON payload sent to the API contains incorrect or unsupported fields. In this case, the fields named "additionalProperties" are not recognized by the API, suggesting that the JSON structure does not match the expected schema.

Incorrect Field Names or Formats

The API may be expecting specific field names or formats that are not being provided. For example, if the API expects a particular structure for the response_schema or its properties, and the provided JSON does not conform to this structure, it will result in a 400 error.

Missing or Required Fields

The API request might be missing required fields or contain fields that are not in a recognized format. This can trigger a 400 error if the API is strict about the data it accepts.

Invalid Request Message Framing

The request message itself could be malformed, which includes issues with JSON encoding, missing or extra characters, or other syntax errors that make the request unreadable by the server.