AWS documentdb documentation change

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

File: documentdb/latest/developerguide/isoDayOfWeek.md

Summary

Added new documentation page for the $isoDayOfWeek operator in Amazon DocumentDB, including detailed explanation, parameters, MongoDB shell example, and code examples in Node.js and Python

Security assessment

This change adds documentation for a new operator ($isoDayOfWeek) in Amazon DocumentDB. The content includes standard documentation elements like operator description, parameters, examples, and code samples. There is no mention of security vulnerabilities, patches, or security-related features. The code examples show standard connection strings with TLS enabled (tls=true) which is a security best practice, but this is not the primary focus of the documentation addition.

Diff

diff --git a/documentdb/latest/developerguide/isoDayOfWeek.md b/documentdb/latest/developerguide/isoDayOfWeek.md
index 8b1378917..4847c0204 100644
--- a//documentdb/latest/developerguide/isoDayOfWeek.md
+++ b//documentdb/latest/developerguide/isoDayOfWeek.md
@@ -0,0 +1 @@
+[](/pdfs/documentdb/latest/developerguide/developerguide.pdf#isoDayOfWeek "Open PDF")
@@ -1,0 +3,134 @@
+[Documentation](/index.html)[Amazon DocumentDB](/documentdb/index.html)[Developer Guide](what-is.html)
+
+Example (MongoDB Shell)Code examples
+
+# $isoDayOfWeek
+
+The `$isoDayOfWeek` operator in Amazon DocumentDB returns the ISO day of the week for a date as an integer value. The ISO week date system defines each week starting on a Monday and ending on a Sunday, with week 1 being the week that contains the year's first Thursday.
+
+**Parameters**
+
+  * `expression`: The date expression for which to return the ISO day of the week.
+
+
+
+
+## Example (MongoDB Shell)
+
+The following example demonstrates how to use the `$isoDayOfWeek` operator to retrieve the ISO day of the week for a set of event documents.
+
+**Create sample documents**
+    
+    
+    db.events.insertMany([
+      { _id: 1, eventDate: ISODate("2023-04-01T12:00:00Z") },
+      { _id: 2, eventDate: ISODate("2023-04-02T12:00:00Z") },
+      { _id: 3, eventDate: ISODate("2023-04-03T12:00:00Z") },
+      { _id: 4, eventDate: ISODate("2023-04-04T12:00:00Z") },
+      { _id: 5, eventDate: ISODate("2023-04-05T12:00:00Z") },
+      { _id: 6, eventDate: ISODate("2023-04-06T12:00:00Z") },
+      { _id: 7, eventDate: ISODate("2023-04-07T12:00:00Z") }
+    ]);
+
+**Query example**
+    
+    
+    db.events.aggregate([
+      { $project: {
+        _id: 1,
+        eventDate: 1,
+        isoDayOfWeek: { $isoDayOfWeek: "$eventDate" }
+      }}
+    ]);
+
+**Output**
+    
+    
+    [
+      { "_id": 1, "eventDate": ISODate("2023-04-01T12:00:00Z"), "isoDayOfWeek": 6 },
+      { "_id": 2, "eventDate": ISODate("2023-04-02T12:00:00Z"), "isoDayOfWeek": 7 },
+      { "_id": 3, "eventDate": ISODate("2023-04-03T12:00:00Z"), "isoDayOfWeek": 1 },
+      { "_id": 4, "eventDate": ISODate("2023-04-04T12:00:00Z"), "isoDayOfWeek": 2 },
+      { "_id": 5, "eventDate": ISODate("2023-04-05T12:00:00Z"), "isoDayOfWeek": 3 },
+      { "_id": 6, "eventDate": ISODate("2023-04-06T12:00:00Z"), "isoDayOfWeek": 4 },
+      { "_id": 7, "eventDate": ISODate("2023-04-07T12:00:00Z"), "isoDayOfWeek": 5 }
+    ]
+
+## Code examples
+
+To view a code example for using the `$isoDayOfWeek` command, 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 events = db.collection('events');
+    
+      const result = await events.aggregate([
+        {
+          $project: {
+            _id: 1,
+            eventDate: 1,
+            isoDayOfWeek: { $isoDayOfWeek: '$eventDate' }
+          }
+        }
+      ]).toArray();
+    
+      console.log(result);
+      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
+        events = db.events
+    
+        result = list(events.aggregate([
+            {
+                '$project': {
+                    '_id': 1,
+                    'eventDate': 1,
+                    'isoDayOfWeek': { '$isoDayOfWeek': '$eventDate' }
+                }
+            }
+        ]))
+    
+        print(result)
+        client.close()
+    
+    example()
+
+![Warning](https://d1ge0kk1l5kms0.cloudfront.net/images/G/01/webservices/console/warning.png) **Javascript is disabled or is unavailable in your browser.**
+
+To use the Amazon Web Services Documentation, Javascript must be enabled. Please refer to your browser's Help pages for instructions.
+
+[Document Conventions](/general/latest/gr/docconventions.html)
+
+$isArray
+
+$isoWeek
+
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+
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