Facebook Group Posts

Fetches posts from a public Facebook group, limited to 3 posts per page due to API limitations. Each post includes id, text, url, reactionCount, commentCount, publishTime, videoDetails, and topComments. Results are chronological by default. Supports TOP_POSTS, RECENT_ACTIVITY, CHRONOLOGICAL, and CHRONOLOGICAL_LISTINGS with cursor-based pagination. posts[].is_paid_partnership is a nullable boolean: true when Facebook supplies a paid-partnership label or an explicit paid branded-content relationship; null when unknown or no disclosure is supplied. It currently never returns false: a missing disclosure does not establish that a post has no sponsorship. shared_post_id and shared_post_url identify the immediate post being shared when Facebook exposes it; both are nullable strings and are null when the reference is unavailable. Null does not prove the post is not a share. Existing id, post_id, and url values remain unchanged. The original is not automatically fetched, and these fields add no additional upstream requests. Call /v1/facebook/post with shared_post_url separately to retrieve the original's available media.