AWS documentdb documentation change

Service: documentdb · 2026-03-31 · Documentation low

File: documentdb/latest/developerguide/not-aggregation.md

Summary

Added new documentation page for the $not aggregation operator with MongoDB shell examples and code examples in Node.js and Python, including connection examples with TLS configuration.

Security assessment

The change adds documentation for a MongoDB aggregation operator ($not) with code examples that include TLS connection parameters (tls=true, tlsCAFile=global-bundle.pem). This promotes secure connection practices but does not address a specific security vulnerability or incident.

Diff

diff --git a/documentdb/latest/developerguide/not-aggregation.md b/documentdb/latest/developerguide/not-aggregation.md
index 8b1378917..a0b49c7b5 100644
--- a//documentdb/latest/developerguide/not-aggregation.md
+++ b//documentdb/latest/developerguide/not-aggregation.md
@@ -0,0 +1 @@
+[](/pdfs/documentdb/latest/developerguide/developerguide.pdf#not-aggregation "Open PDF")
@@ -1,0 +3,128 @@
+[Documentation](/index.html)[Amazon DocumentDB](/documentdb/index.html)[Developer Guide](what-is.html)
+
+Example (MongoDB Shell)Code examples
+
+# $not
+
+The `$not` aggregation operator performs a logical NOT operation on an expression. It returns `true` if the expression evaluates to `false`, and `false` if the expression evaluates to `true`.
+
+**Parameters**
+
+  * `expression`: The expression to negate.
+
+
+
+
+## Example (MongoDB Shell)
+
+The following example demonstrates using the `$not` operator to invert boolean values.
+
+**Create sample documents**
+    
+    
+    db.users.insertMany([
+      { _id: 1, name: "Alice", active: true },
+      { _id: 2, name: "Bob", active: false },
+      { _id: 3, name: "Charlie", active: true }
+    ]);
+
+**Query example**
+    
+    
+    db.users.aggregate([
+      {
+        $project: {
+          name: 1,
+          active: 1,
+          inactive: { $not: ["$active"] }
+        }
+      }
+    ]);
+
+**Output**
+    
+    
+    [
+      { _id: 1, name: 'Alice', active: true, inactive: false },
+      { _id: 2, name: 'Bob', active: false, inactive: true },
+      { _id: 3, name: 'Charlie', active: true, inactive: false }
+    ]
+
+## Code examples
+
+To view a code example for using the `$not` aggregation operator, choose the tab for the language that you want to use:
+
+Node.js
+    
+    
+    
+    const { MongoClient } = require('mongodb');
+    
+    async function example() {
+      const client = await MongoClient.connect('mongodb://<username>:<password>@<cluster-endpoint>:27017/?tls=true&tlsCAFile=global-bundle.pem&replicaSet=rs0&readPreference=secondaryPreferred&retryWrites=false');
+      const db = client.db('test');
+      const collection = db.collection('users');
+    
+      const result = await collection.aggregate([
+        {
+          $project: {
+            name: 1,
+            active: 1,
+            inactive: { $not: ["$active"] }
+          }
+        }
+      ]).toArray();
+    
+      console.log(result);
+      await client.close();
+    }
+    
+    example();
+
+Python
+    
+    
+    
+    from pymongo import MongoClient
+    
+    def example():
+        client = MongoClient('mongodb://<username>:<password>@<cluster-endpoint>:27017/?tls=true&tlsCAFile=global-bundle.pem&replicaSet=rs0&readPreference=secondaryPreferred&retryWrites=false')
+        db = client['test']
+        collection = db['users']
+    
+        result = list(collection.aggregate([
+            {
+                '$project': {
+                    'name': 1,
+                    'active': 1,
+                    'inactive': { '$not': ['$active'] }
+                }
+            }
+        ]))
+    
+        print(result)
+        client.close()
+    
+    example()
+
+![Warning](https://d1ge0kk1l5kms0.cloudfront.net/images/G/01/webservices/console/warning.png) **Javascript is disabled or is unavailable in your browser.**
+
+To use the Amazon Web Services Documentation, Javascript must be enabled. Please refer to your browser's Help pages for instructions.
+
+[Document Conventions](/general/latest/gr/docconventions.html)
+
+$ne
+
+$objectToArray
+
+Did this page help you? - Yes
+
+Thanks for letting us know we're doing a good job!
+
+If you've got a moment, please tell us what we did right so we can do more of it.
+
+Did this page help you? - No
+
+Thanks for letting us know this page needs work. We're sorry we let you down.
+
+If you've got a moment, please tell us how we can make the documentation better.