RxClass Information¶
Retrieves detailed information about a drug class from RxClass using a class ID. Returns a JSON-formatted string with the class data and a status message. Includes input validation and consistent error reporting.
Usage¶
Use this node when you have a known RxClass class identifier and need to fetch its details (e.g., to display class metadata or feed downstream classification analysis). Typical workflow: search or determine a class ID, pass it to this node, then parse the returned JSON for class attributes.
Inputs¶
| Field | Required | Type | Description | Example |
|---|---|---|---|---|
| class_id | True | STRING | The RxClass class identifier to query. This is the unique ID used by RxClass to reference a specific drug class. | 100 |
Outputs¶
| Field | Type | Description | Example |
|---|---|---|---|
| class_info | STRING | Pretty-printed JSON string containing the fetched class information. Structure: {"class_id": "", "data": | {"class_id":"100","data":{...}} |
| status | STRING | Human-readable status message indicating success or describing the error. | Successfully retrieved RxClass info for class ID 100 |
Important Notes¶
- Input required: class_id must be a non-empty string; empty input returns an error.
- Output format: class_info is a JSON string; parse it before programmatic use.
- Error reporting: If the upstream service reports an issue, status will include an "API Error" message and class_info will contain the error details as JSON.
- Data source: Results reflect current data available from RxClass and may change over time.
Troubleshooting¶
- Empty input: If status says "Error: Class ID cannot be empty", provide a valid class_id.
- Invalid class ID: If status contains "API Error", verify the class_id against RxClass and try again.
- Malformed JSON usage: If downstream nodes fail to parse class_info, ensure you parse the JSON string before accessing fields.
- Network or rate limits: Temporary service issues can cause API errors; retry after a short delay.