From 80d610428e59192a4953705e14820c470584b013 Mon Sep 17 00:00:00 2001
From: Angela <angelashu103@gmail.com>
Date: Tue, 25 Mar 2025 11:50:15 -0400
Subject: [PATCH 1/2] add casual consistency section:

---
 source/crud/transactions.txt | 43 ++++++++++++++++++++++++++----------
 1 file changed, 31 insertions(+), 12 deletions(-)

diff --git a/source/crud/transactions.txt b/source/crud/transactions.txt
index 4349208aa..8ecda4c38 100644
--- a/source/crud/transactions.txt
+++ b/source/crud/transactions.txt
@@ -47,18 +47,6 @@ ACID transactions </basics/acid-transactions>`.
    Operations </core/transactions/#transactions-and-operations>` section in
    the Server manual.
 
-In MongoDB, multi-document transactions run within a **client session**.
-A client session is a grouping of related read or write operations that
-you want to execute sequentially. We recommend you reuse
-your client for multiple sessions and transactions instead of
-instantiating a new client each time.
-
-When combined with ``majority`` read and
-write concerns, the driver guarantees causal consistency between the
-operations. To learn more, see :manual:`Client Sessions and Causal Consistency Guarantees
-</core/read-isolation-consistency-recency/#client-sessions-and-causal-consistency-guarantees>` in the
-Server manual.
-
 Learn more about how to use the driver to perform multi-document
 transactions in the following sections of this guide:
 
@@ -66,6 +54,37 @@ transactions in the following sections of this guide:
 - :ref:`Transaction Options <nodejs-transaction-settings>`
 - :ref:`Transaction Errors <nodejs-transaction-errors>`
 
+.. _nodejs-causal-consistency:
+
+Causal Consistency
+~~~~~~~~~~~~~~~~~~
+
+.. sharedinclude:: dbx/causal-consistency.rst
+
+   .. replacement:: insert-one-method
+
+      ``insertOne()``
+
+   .. replacement:: update-one-method
+
+      ``updateOne()``
+
+   .. replacement:: find-one-method
+
+      ``find()``
+
+   .. replacement:: delete-one-method
+
+      ``deleteOne()``
+
+   .. replacement:: majority-rc
+
+      ``majority``
+
+   .. replacement:: majority-wc
+
+      ``majority``
+
 .. _nodejs-transaction-apis:
 
 Transaction APIs

From dfb46258b3ae6e99a87459ea337680dc942bdf3c Mon Sep 17 00:00:00 2001
From: Angela <angelashu103@gmail.com>
Date: Tue, 25 Mar 2025 13:42:02 -0400
Subject: [PATCH 2/2] change find to findone

---
 source/crud/transactions.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/source/crud/transactions.txt b/source/crud/transactions.txt
index 8ecda4c38..d6c238d65 100644
--- a/source/crud/transactions.txt
+++ b/source/crud/transactions.txt
@@ -71,7 +71,7 @@ Causal Consistency
 
    .. replacement:: find-one-method
 
-      ``find()``
+      ``findOne()``
 
    .. replacement:: delete-one-method