Sentiment drivers

This page documents the sentiment analysis plugin in fp_perception_driver_sentiment.

SentimentDriver

Class: fp_perception::SentimentDriver (REST-based sentiment inference)

What it does

• Accepts sentiment_request via analyze().
• Sends a JSON request to the configured endpoint (Hugging Face style: inputs: <text>).
• Parses a Hugging Face-style response and returns (label, score) in sentiment_result.

Parameters

• driver.sentiment.SentimentDriver.name (string)

REST base parameters:

• driver.sentiment.SentimentDriver.rest.uri
• driver.sentiment.SentimentDriver.rest.method
• driver.sentiment.SentimentDriver.rest.ssl_verify
• driver.sentiment.SentimentDriver.rest.auth_type

Environment:

• Requires HUGGINGFACE_API_KEY to be set.

Usage with the server

• The server offers fp_perception_msgs/srv/PerceptionSentiment.
• If use_device_audio=true, the server transcribes device audio first and then runs sentiment on the transcription.
• Otherwise, it runs sentiment directly on the request text.
• If use_diagnostics=true, the driver publishes request health on /diagnostics via diagnostic_updater.