The body
- accounts: 1 to 100 ids or objects. An object can carry its own parts, settings, first_comment, scheduled_at and link_placement.
- text or parts: parts is 1 to 100 items, each with text, up to 20 media ids and an optional delay in minutes.
- schedule_at, publish_now or use_next_free_slot: pick how it goes out.
Changing it
PATCH /v1/posts/{id} changes only what you send. parts replaces the text and media; accounts patches destinations or adds them; remove_accounts drops some. A post that has already gone out can only be moved.
Send an Idempotency-Key with every create.