Location fixes

microservices/LocationsApi/Controllers/LocationsController.cs

@@ -42,6 +42,10 @@ public class LocationsController : ControllerBase
         {
             return Conflict("Coord must be unique");
         }
+        catch (MongoWriteException ex) when (ex.WriteError.Code == 121)
+        {
+            return BadRequest("Location document failed validation");
+        }
 
         return Ok(location);
     }

microservices/LocationsApi/Models/Coord.cs

@@ -1,8 +1,12 @@
+using MongoDB.Bson.Serialization.Attributes;
+
 namespace LocationsApi.Models;
 
 public class Coord
 {
+    [BsonElement("x")]
     public int X { get; set; }
 
+    [BsonElement("y")]
     public int Y { get; set; }
 }

microservices/LocationsApi/Models/Location.cs

@@ -9,9 +9,12 @@ public class Location
     [BsonRepresentation(BsonType.ObjectId)]
     public string? Id { get; set; }
 
+    [BsonElement("name")]
     public string Name { get; set; } = string.Empty;
 
+    [BsonElement("coord")]
     public required Coord Coord { get; set; }
 
+    [BsonElement("createdUtc")]
     public DateTime CreatedUtc { get; set; } = DateTime.UtcNow;
 }