Start a session and initialize WhatsApp connection
POST/api/sessions/:sessionId/start
Start a session and initialize WhatsApp connection
Request
Responses
- 200
- 400
- 404
- 409
Session started
Session already started
Session not found
A credential teardown for the same session name is still in flight (e.g. a prior logout that owns destructive cleanup). Retryable — the body carries code: SESSION_NAME_TEARDOWN_PENDING; wait for it to settle and retry. No destructive side effect runs before this refusal. Also returned when another node currently holds this session's engine: only the owner may start it, and the claim is refused before any engine is launched, so no second connection to the account is opened.