Record one reaction — like, clap, or bookmark — from the authenticated account on an article.
This acts publicly as the account holder, so only call it when the user has actually asked to react; do not react on their behalf to be helpful. Adds a single type per call — react twice for two types.
Safe to repeat: if the reaction already exists the call succeeds and changes nothing, so it will not double-count. Requires an API key. Use remove_reaction to undo, and get_reactions to see the resulting totals.
ConnectorNo auth