AWS documentdb documentation change

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

File: documentdb/latest/developerguide/toDate.md

Summary

Added new documentation page for the $toDate aggregation operator in Amazon DocumentDB, including syntax, parameters, examples in MongoDB Shell, Node.js, and Python with connection strings

Security assessment

This change adds documentation for a new aggregation operator ($toDate) in DocumentDB version 4.0. The documentation includes standard usage examples and connection strings that contain TLS parameters (tls=true, tlsCAFile=global-bundle.pem). While TLS is a security feature, this documentation is primarily about the $toDate operator functionality, not specifically about security. The TLS parameters appear to be standard connection string examples rather than new security guidance.

Diff

diff --git a/documentdb/latest/developerguide/toDate.md b/documentdb/latest/developerguide/toDate.md
index 8b1378917..10ec240e9 100644
--- a//documentdb/latest/developerguide/toDate.md
+++ b//documentdb/latest/developerguide/toDate.md
@@ -0,0 +1 @@
+[](/pdfs/documentdb/latest/developerguide/developerguide.pdf#toDate "Open PDF")
@@ -1,0 +3,143 @@
+[Documentation](/index.html)[Amazon DocumentDB](/documentdb/index.html)[Developer Guide](what-is.html)
+
+Example (MongoDB Shell)Code examples
+
+# $toDate
+
+New from version 4.0
+
+The `$toDate` aggregation operator in Amazon DocumentDB is used to convert a date or date and time string to a BSON Date type. This is the inverse operation of the `$dateToString` operator.
+
+**Parameters**
+
+  * `dateString`: A string representation of a date or date and time to be converted to a BSON Date type.
+
+  * `format`: (optional) A string that specifies the format of the `dateString`. If not provided, the operator will attempt to parse the `dateString` in various standard date and time formats.
+
+  * `timezone`: (optional) A string representing the time zone to use for the conversion. If not provided, the local time zone is used.
+
+
+
+
+## Example (MongoDB Shell)
+
+The following example demonstrates how to use the `$toDate` operator to convert a date string to a BSON Date type.
+
+**Create sample documents**
+    
+    
+    db.events.insertMany([
+      { _id: 1, eventName: "Mission Start", eventTime: "2023-04-15T10:30:00Z" },
+      { _id: 2, eventName: "Checkpoint Reached", eventTime: "2023-04-15T11:15:00Z" },
+      { _id: 3, eventName: "Mission End", eventTime: "2023-04-15T12:00:00Z" }
+    ]);
+
+**Query example**
+    
+    
+    db.events.aggregate([
+      {
+        $project: {
+          eventName: 1,
+          eventTimeDate: { $toDate: "$eventTime" }
+        }
+      }
+    ]);
+
+**Output**
+    
+    
+    [
+      {
+        "_id": 1,
+        "eventName": "Mission Start",
+        "eventTimeDate": ISODate("2023-04-15T10:30:00Z")
+      },
+      {
+        "_id": 2,
+        "eventName": "Checkpoint Reached",
+        "eventTimeDate": ISODate("2023-04-15T11:15:00Z")
+      },
+      {
+        "_id": 3,
+        "eventName": "Mission End",
+        "eventTimeDate": ISODate("2023-04-15T12:00:00Z")
+      }
+    ]
+
+## Code examples
+
+To view a code example for using the `$toDate` 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 collection = db.collection('events');
+    
+      const result = await collection.aggregate([
+        {
+          $project: {
+            eventName: 1,
+            eventTimeDate: { $toDate: '$eventTime' }
+          }
+        }
+      ]).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']
+        collection = db['events']
+    
+        result = list(collection.aggregate([
+            {
+                '$project': {
+                    'eventName': 1,
+                    'eventTimeDate': { '$toDate': '$eventTime' }
+                }
+            }
+        ]))
+    
+        print(result)
+        client.close()
+    
+    example()
+
+![Warning](https://d1ge0kk1l5kms0.cloudfront.net/images/G/01/webservices/console/warning.png) **Javascript is disabled or is unavailable in your browser.**
+
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+
+[Document Conventions](/general/latest/gr/docconventions.html)
+
+$toBool
+
+$toDecimal
+
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