AWS documentdb documentation change

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

File: documentdb/latest/developerguide/regex.md

Summary

Added new documentation page for the $regex operator in Amazon DocumentDB, including syntax, parameters, MongoDB shell examples, and code examples in Node.js and Python

Security assessment

This change adds routine documentation for a query operator ($regex) with standard usage examples. The code examples include TLS connection parameters (tls=true, tlsCAFile) which are standard secure connection practices, but this is not introducing new security documentation - it's showing standard secure connection patterns that should already be used. There is no evidence of addressing a specific security vulnerability or incident.

Diff

diff --git a/documentdb/latest/developerguide/regex.md b/documentdb/latest/developerguide/regex.md
index 8b1378917..3e8dd91b6 100644
--- a//documentdb/latest/developerguide/regex.md
+++ b//documentdb/latest/developerguide/regex.md
@@ -0,0 +1 @@
+[](/pdfs/documentdb/latest/developerguide/developerguide.pdf#regex "Open PDF")
@@ -1,0 +3,109 @@
+[Documentation](/index.html)[Amazon DocumentDB](/documentdb/index.html)[Developer Guide](what-is.html)
+
+Example (MongoDB Shell)Code examples
+
+# $regex
+
+The `$regex` operator allows you to perform regular expression matching on string fields. It is a powerful tool for searching and filtering documents based on complex patterns.
+
+**Parameters**
+
+  * `regular expression`: The regular expression pattern to match against the field.
+
+  * `$options`: (optional) Provides options to modify the search behavior, such as case-sensitivity, global matching, etc.
+
+
+
+
+## Example (MongoDB Shell)
+
+The following example demonstrates the usage of the `$regex` operator to search for documents where the "name" field matches a specific pattern.
+
+**Create sample documents**
+    
+    
+    db.users.insertMany([
+      { name: "John Doe" },
+      { name: "Jane Smith" },
+      { name: "Alice Johnson" },
+      { name: "Bob Williams" },
+      { name: "Charlie Davis" }
+    ]);
+
+**Query example**
+    
+    
+    db.users.find({ name: { $regex: /^A/ } })
+
+**Output**
+    
+    
+    [
+      { "_id" : ObjectId("..."), "name" : "Alice Johnson" }
+    ]
+
+This query will return all documents where the "name" field starts with the letter "A".
+
+## Code examples
+
+To view a code example for using the `$regex` command, choose the tab for the language that you want to use:
+
+Node.js
+    
+    
+    
+    const { MongoClient } = require('mongodb');
+    
+    async function main() {
+      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 results = await collection.find({ name: { $regex: /^A/ } }).toArray();
+      console.log(results);
+    
+      await client.close();
+    }
+    
+    main();
+
+Python
+    
+    
+    
+    from pymongo import MongoClient
+    
+    def main():
+        client = MongoClient('mongodb://<username>:<password>@<cluster-endpoint>:27017/?tls=true&tlsCAFile=global-bundle.pem&replicaSet=rs0&readPreference=secondaryPreferred&retryWrites=false')
+        db = client['test']
+        collection = db['users']
+    
+        results = list(collection.find({ 'name': { '$regex': '^A' } }))
+        print(results)
+    
+        client.close()
+    
+    if __name__ == "__main__":
+        main()
+
+![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)
+
+$or
+
+$slice
+
+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.