RxClass Information¶
Retrieves detailed information about a specific RxClass given its class identifier. Returns a JSON-formatted string with the class ID and the full data payload from the RxClass service, along with a status message. Handles empty inputs and API errors with clear status feedback.
Usage¶
Use this node when you know an RxClass identifier and need its metadata (e.g., class name, type, related attributes). Typical workflow: search or derive a class ID using a search node, then pass that ID here to fetch authoritative details for reporting or downstream processing.
Inputs¶
| Field | Required | Type | Description | Example |
|---|---|---|---|---|
| class_id | True | STRING | The RxClass identifier (classId) to look up. This may be a numeric or alphanumeric ID, depending on the classification source. | D007398 |
Outputs¶
| Field | Type | Description | Example |
|---|---|---|---|
| class_info | STRING | A JSON string containing the requested class information. Structure: {"class_id": "", "data": { ...raw RxClass data... }} | {"class_id":"D007398","data":{...}} |
| status | STRING | Human-readable status message indicating success or providing error details. | Successfully retrieved RxClass info for class ID D007398 |
Important Notes¶
- Input validation: If class_id is empty or whitespace, the node returns "{}" for class_info and an error status.
- Error propagation: If the upstream RxClass service returns an error, the error is included in the output JSON and reflected in the status as an API Error.
- Output format: class_info is a JSON string. Downstream nodes expecting structured data should parse this string.
- Identifier format: class_id formats vary by source (e.g., numeric or codes like D007398). Ensure you supply a valid RxClass classId.
- No source selector: This node looks up class info by ID only; it does not take a classification system parameter.
Troubleshooting¶
- Empty class_id: Ensure the class_id field is not blank. Provide a valid RxClass identifier.
- Invalid or unknown class_id: Verify the ID exists. Try locating the class via a search node and use the returned classId.
- API Error in status: The external service may be unavailable or the ID invalid. Retry later or validate the identifier.
- Unexpected output structure: Remember class_info is a JSON string. Parse it before attempting to access fields.
- Rate limiting or network issues: If intermittent failures occur, implement retries or reduce request frequency.