serve original openapi json

OpenAPIDocCtrl.cs.tmpl

@@ -0,0 +1,24 @@
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.AspNetCore.Mvc;
+using System.IO;
+using System.Threading.Tasks;
+
+namespace de.hottis.genericdatabaseapiservice.Controllers {
+    [Route("/${env['routeprefix']}/openapi/JSON")]
+    public class OpenAPIDocCtrl : ControllerBase {
+        private IWebHostEnvironment _hostingEnvironment;
+
+        public OpenAPIDocCtrl(IWebHostEnvironment environment) {
+            _hostingEnvironment = environment;
+        }
+
+        [HttpGet]
+        public async Task<IActionResult> Index() {
+            return Content(
+                await System.IO.File.ReadAllTextAsync(Path.Combine(_hostingEnvironment.WebRootPath, "openapi-original.json")),
+                "text/plain"
+            );
+        }
+    }
+}
+