Class RequestEngine

Build a fully-qualified URL from an absolute base URL and optional query.

Build a fully-qualified URL from a path (on the data host) and optional query. The result carries the base URL's userinfo, if any: it is the URL a transport requests.

GET a path on the data host and parse the JSON reply into T.

GET a fully-qualified absolute URL (e.g. the catalogue host) and parse JSON into T.

text without the credentials of the base URL or of any absolute URL this engine requested (the catalogue): server text (an error body that echoes the request URL) and transport text (fetch's "Failed to fetch ") can carry them. The client uses it for the errors it builds itself (the ArcGIS envelope).

GET a path on the data host with query params.