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Create a comment keyed on publisher external id (lazy-creates discussion)

POST 
/api/v1/discussions/by-external/:externalId/comments

Creates a comment against the discussion identified by the tenant-scoped external_id. If no discussion exists for that id, one is materialised in the same request (title defaults to external_id; a later POST /api/v1/discussions can set a real title without being overwritten). Emits comment_created SSE. Idempotent — pass Idempotency-Key: <uuid> to safely retry.

Request​

Responses​

Default Response