From 9a217a7a716575a09908e1178d47c09381b221c1 Mon Sep 17 00:00:00 2001
From: Douglas Gaskell <1400380+douglasg14b@users.noreply.github.com>
Date: Thu, 28 Dec 2023 20:02:13 -0800
Subject: [PATCH] Add warning for data source gotcha

---
 conceptual/EFCore.PG/mapping/nts.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/conceptual/EFCore.PG/mapping/nts.md b/conceptual/EFCore.PG/mapping/nts.md
index 4a08c52c..9555367c 100644
--- a/conceptual/EFCore.PG/mapping/nts.md
+++ b/conceptual/EFCore.PG/mapping/nts.md
@@ -13,6 +13,9 @@ To use the NetTopologySuite plugin, add the [Npgsql.EntityFrameworkCore.PostgreS
 
 ### [NpgsqlDataSource](#tab/with-datasource)
 
+> [!WARNING]
+> Ensure you build your data source `dataSourceBuilder.Build();` _outside_ of the `AddDbContext()`` configure callback otherwise a new ServiceProvider will be created for each DbContext instance
+
 Since version 7.0, NpgsqlDataSource is the recommended way to use Npgsql. When using NpsgqlDataSource, NetTopologySuite currently has to be configured twice - once at the EF level, and once at the underlying ADO.NET level (there are plans to improve this):
 
 ```c#