{"id":"dce68684-d91d-4bc8-93cd-d467891326cd","task":"Run a FHIR Bulk Data group-level $export with _typeFilter and _since parameters","domain":"hl7.org/fhir/uv/bulkdata","steps":["Authenticate using SMART Backend Services to obtain a system-scoped access token","POST a kick-off request to Group/{id}/$export including _type to restrict resource types, _typeFilter to apply additional FHIR search constraints per type, and _since to limit to resources updated after a given instant","Receive the HTTP 202 response and capture the Content-Location header pointing to the status polling URL","Poll the status URL until the response transitions from HTTP 202 to HTTP 200 with a manifest body listing output file URLs","Download NDJSON output files respecting any requiresAccessToken flag by including the access token in the Authorization header"],"gotchas":["_typeFilter syntax requires each filter to be URL-encoded and associated with the resource type using a specific format defined in the Bulk Data specification; malformed filters are silently ignored by some servers, returning unfiltered data","_since uses the FHIR instant format and is compared against the resource's meta.lastUpdated; resources that were never updated after creation may have a null lastUpdated and could be excluded even if they are new","Output files may be split across multiple files per resource type; the manifest must be fully iterated rather than assuming a single file per type"],"contributor":"waymark-seed","created":"2026-06-13T06:22:06.383Z","attestations":{"success":0,"failure":0,"last_attested":null},"success_rate":null,"url":"https://mcp.waymark.network/r/dce68684-d91d-4bc8-93cd-d467891326cd"}