añado el Controller y metodo para comprobar desde el servicio si existe x documento

DoliMiddlewareApi/Controllers/DocumentController.cs

@@ -0,0 +1,27 @@
+using DoliMiddlewareApi.Services;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
+
+namespace DoliMiddlewareApi.Controllers
+{
+    [Route("api/[controller]")]
+    [ApiController]
+    public class DocumentController(DocumentService documentService) : ControllerBase
+    {
+
+        [HttpPut("invoice/{invoiceRef}/build")]
+        public async Task<IActionResult> BuildInvoicePdf(string invoiceRef)
+        {
+            await documentService.BuildInvoicePdfAsync(invoiceRef);
+
+            var exists = await documentService.ExistsAsync(invoiceRef);
+
+            return Ok(new
+            {
+                generated = exists,
+                invoiceRef
+            });
+        }
+
+    }
+}

DoliMiddlewareApi/Services/DocumentService.cs

@@ -18,6 +18,17 @@ namespace DoliMiddlewareApi.Services
 
             await apiClient.PutAsync("documents/builddoc",request);
         }
-        
+
+        public async Task<bool> ExistsAsync(string invoiceRef)
+        {
+            var file = $"¨{invoiceRef}/{invoiceRef}.pdf";
+
+            var endpoint = $"documents?modulepart=invoice&id={invoiceRef}";
+
+            var docs = await apiClient.GetCollectionAsync<string>(endpoint);
+
+            return docs.Contains(file);
+
+        }
     }
 }