{"openapi":"3.1.0","info":{"title":"GET /api/v1/businesses/mailbox","version":"1.0.0","description":"Check mailbox uniqueness"},"servers":[{"url":"https://api.ondayzero.com","description":"Production"}],"paths":{"/api/v1/businesses/mailbox":{"get":{"tags":["businesses"],"summary":"Check mailbox uniqueness","description":"Check if a mailbox is unique; validation and conflicts are handled by the service.\n\nRate-limited per user and per IP — the endpoint is otherwise an\nenumeration oracle for the mailbox namespace.","operationId":"check_mailbox_uniqueness","parameters":[{"name":"mailbox","in":"query","required":true,"schema":{"type":"string","description":"Mailbox to check for uniqueness","title":"Mailbox"},"description":"Mailbox to check for uniqueness"},{"name":"authorization","in":"header","required":false,"schema":{"anyOf":[{"type":"string"},{"type":"null"}],"title":"Authorization"}}],"responses":{"200":{"description":"Successful Response","content":{"application/json":{"schema":{"$ref":"#/components/schemas/SuccessEnvelope_MailboxUniquenessResponse_"}}}},"400":{"description":"Bad Request - Invalid input","content":{"application/json":{"example":{"error":"validation_error","message":"Validation failed: due_date: Input should be a valid date","errors":{"due_date":"Input should be a valid date"},"code":"GEN_002","request_id":"3f0e7c2a-9b4d-4e1a-8c6f-2d5b7a1e9c30"},"schema":{"$ref":"#/components/schemas/ErrorResponse"}}}},"409":{"description":"Conflict - Resource already exists or is in an incompatible state","content":{"application/json":{"example":{"error":"conflict","message":"Resource already exists","code":"CONFLICT_001","request_id":"3f0e7c2a-9b4d-4e1a-8c6f-2d5b7a1e9c30"},"schema":{"$ref":"#/components/schemas/ErrorResponse"}}}},"429":{"description":"Too Many Requests - Rate limit exceeded; back off and retry","content":{"application/json":{"example":{"error":"rate_limited","message":"Too many requests. Please slow down.","code":"GEN_005","request_id":"3f0e7c2a-9b4d-4e1a-8c6f-2d5b7a1e9c30"},"schema":{"$ref":"#/components/schemas/ErrorResponse"}}}},"422":{"description":"Validation Error","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ErrorResponse"},"example":{"error":"validation_error","message":"Validation failed: amount: Input should be a valid integer","errors":{"amount":"Input should be a valid integer"},"code":"GEN_002","request_id":"3f0e7c2a-9b4d-4e1a-8c6f-2d5b7a1e9c30"}}}}},"x-fastapi-operation-id":"check_mailbox_uniqueness_api_v1_businesses_mailbox_get"}}},"components":{"schemas":{"MailboxUniquenessResponse":{"properties":{"unique":{"type":"boolean","title":"Unique","description":"Whether the mailbox is unique"}},"type":"object","required":["unique"],"title":"MailboxUniquenessResponse","description":"Response schema for mailbox uniqueness check."},"SuccessEnvelope_MailboxUniquenessResponse_":{"properties":{"success":{"type":"boolean","title":"Success","default":true},"message":{"anyOf":[{"type":"string"},{"type":"null"}],"title":"Message"},"code":{"anyOf":[{"type":"string"},{"type":"null"}],"title":"Code"},"data":{"anyOf":[{"$ref":"#/components/schemas/MailboxUniquenessResponse"},{"type":"null"}]}},"additionalProperties":true,"type":"object","title":"SuccessEnvelope[MailboxUniquenessResponse]"},"ErrorResponse":{"title":"ErrorResponse","type":"object","description":"Envelope returned by every non-2xx response. Branch on `code` (stable) rather than `message` (human-readable, may change).","required":["error","message","code"],"properties":{"error":{"type":"string","description":"Error category: `validation_error`, `unauthorized`, `forbidden`, `not_found`, `conflict`, `rate_limited`, `server_error`, or `service_unavailable`."},"message":{"type":"string","description":"Human-readable explanation, safe to show to end users."},"code":{"type":"string","description":"Stable machine-readable code in `CATEGORY_NNN` form (e.g. `NOT_FOUND_006`, `AUTH_010`, `GEN_002`)."},"request_id":{"type":"string","description":"Correlation id for support requests. Echoes the `x-request-id` request header when one was supplied."},"errors":{"type":"object","additionalProperties":{"type":"string"},"description":"Field-level validation messages keyed by field name. Present on 400/422 validation failures only."}}}},"securitySchemes":{"BearerAuth":{"type":"http","scheme":"bearer","bearerFormat":"API Token","description":"API token authentication. Format: `Bearer dz_...`"}}},"security":[{"BearerAuth":[]}]}