feature: HL7 FHIR R4 Integration

2026-06-27 22:23:45 +08:00
parent 756cff332c
commit 5646dfddb4
27 changed files with 2658 additions and 16 deletions
@@ -0,0 +1,45 @@
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+
+[ApiController]
+[Route("fhir/Observation")]
+[Produces("application/fhir+json")]
+[Authorize]
+public class FhirObservationController : ControllerBase
+{
+    private readonly IFhirService _fhir;
+
+    public FhirObservationController(IFhirService fhir) => _fhir = fhir;
+
+    /// <summary>
+    /// FHIR read: GET /fhir/Observation/{id}
+    /// </summary>
+    [HttpGet("{id}")]
+    public async Task<IActionResult> Read(string id)
+    {
+        var observation = await _fhir.GetObservationAsync(Guid.Parse(id));
+        if (observation is null)
+            return NotFound(FhirErrorHelper.NotFound("Observation", id));
+
+        return Ok(observation);
+    }
+
+    /// <summary>
+    /// FHIR search: GET /fhir/Observation?patient=X&code=Y&date=Z&category=W
+    /// Supports search by patient reference, LOINC code, date range, and category.
+    /// </summary>
+    [HttpGet]
+    public async Task<IActionResult> Search(
+        [FromQuery] string? patient,
+        [FromQuery] string? code,
+        [FromQuery] string? date,
+        [FromQuery] string? category,
+        [FromQuery] string? encounter,
+        [FromQuery(Name = "_count")] int count = 50,
+        [FromQuery(Name = "_offset")] int offset = 0)
+    {
+        var bundle = await _fhir.SearchObservationsAsync(
+            patient, code, date, category, encounter, count, offset);
+        return Ok(bundle);
+    }
+}