Sprint 7.4 — MAT-Compatible Measure Export (FHIR R4 Bundle)

[Taleef7]

Goal

Export authored measures as FHIR R4 XML bundles importable into the eCQM Measure Authoring Tool (MAT).

Desired behavior

GET /api/measures/{id}/versions/{versionId}/export/mat?format=xml returns FHIR R4 Bundle containing:

• Measure resource with title, description, publisher, status, library reference
• Library resource with CQL text as raw bytes (HAPI serializes to base64) and contentType=text/cql
• ValueSet resource per linked value set

Files

• backend/src/main/java/com/workwell/fhir/MeasureExportService.java (new)
• backend/src/main/java/com/workwell/web/AiController.java or MeasureController — endpoint
• Studio export button (ReleaseApprovalTab)

Acceptance criteria

• Endpoint returns Content-Type: application/fhir+xml
• Bundle contains Library, Measure, ValueSet resources
• Library content[0].data contains CQL as raw bytes (no double base64)
• Validates as FHIR R4 Bundle (HAPI validator)
• Export button visible to APPROVER/ADMIN in Studio

Spec: docs/sprints/SPRINT_07_overdelivery_features.md §7.4

[Taleef7]

Completed via merged PR #53, including review hardening in f2e977d. MAT-compatible FHIR export endpoint/service shipped with authorization gate, export validation fixes, tests, and docs updates.