article_categories_get

publ Reference
# article_categories_get

Reads categories in the Article app (pApp B00001, or an instance code of the same family). Another app code is refused before any request.

## Inputs

| Field | Required here | Contract |
| --- | --- | --- |
| `categoryId` | No | integer; greater than 0; Omit to list free-board or article categories; provide a discovered ID to read its metadata and labels (article subcategories). |
| `instanceCode` | No | string; pattern `^B(?:000\|9[0-9]{2})01$`; Optional: which installed Article app to use (its code, such as B00001 or B90101). Omit it when only one is installed; when several are, pick one from the installed list. |