AWS documentdb documentation change

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

File: documentdb/latest/developerguide/set-update.md

Summary

Added comprehensive documentation for the $set operator in Amazon DocumentDB, including description, parameters, MongoDB Shell example, and code examples in Node.js and Python with TLS connection details.

Security assessment

The change adds documentation for a database update operator and includes code examples that demonstrate secure connection practices using TLS (tls=true and tlsCAFile=global-bundle.pem). While this promotes security best practices, there is no evidence in the diff that this change addresses a specific security vulnerability, weakness, or incident.

Diff

diff --git a/documentdb/latest/developerguide/set-update.md b/documentdb/latest/developerguide/set-update.md
index 8b1378917..38dc6ab16 100644
--- a//documentdb/latest/developerguide/set-update.md
+++ b//documentdb/latest/developerguide/set-update.md
@@ -0,0 +1 @@
+[](/pdfs/documentdb/latest/developerguide/developerguide.pdf#set-update "Open PDF")
@@ -1,0 +3,135 @@
+[Documentation](/index.html)[Amazon DocumentDB](/documentdb/index.html)[Developer Guide](what-is.html)
+
+Example (MongoDB Shell)Code examples
+
+# $set
+
+The `$set` operator in Amazon DocumentDB is used to update the value of a specified field in a document. This operator allows you to add new fields or modify existing ones within a document. It is a fundamental update operator in the MongoDB Java driver, which is compatible with Amazon DocumentDB.
+
+**Parameters**
+
+  * `field`: The field to update.
+
+  * `value`: The new value for the field.
+
+
+
+
+## Example (MongoDB Shell)
+
+The following example demonstrates how to use the `$set` operator to update the `Item` field in a document.
+
+**Create sample documents**
+    
+    
+    db.example.insert([
+      {
+        "Item": "Pen",
+        "Colors": ["Red", "Green", "Blue", "Black"],
+        "Inventory": {
+          "OnHand": 244,
+          "MinOnHand": 72
+        }
+      },
+      {
+        "Item": "Poster Paint",
+        "Colors": ["Red", "Green", "Blue", "White"],
+        "Inventory": {
+          "OnHand": 120,
+          "MinOnHand": 36
+        }
+      }
+    ])
+
+**Query example**
+    
+    
+    db.example.update(
+      { "Item": "Pen" },
+      { $set: { "Item": "Gel Pen" } }
+    )
+
+**Output**
+    
+    
+    {
+      "Item": "Gel Pen",
+      "Colors": ["Red", "Green", "Blue", "Black"],
+      "Inventory": {
+        "OnHand": 244,
+        "MinOnHand": 72
+      }
+    }
+
+## Code examples
+
+To view a code example for using the `$set` command, choose the tab for the language that you want to use:
+
+Node.js
+    
+    
+    
+    const { MongoClient } = require('mongodb');
+    
+    async function updateDocument() {
+      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('example');
+    
+      await collection.updateOne(
+        { "Item": "Pen" },
+        { $set: { "Item": "Gel Pen" } }
+      );
+    
+      const updatedDocument = await collection.findOne({ "Item": "Gel Pen" });
+      console.log(updatedDocument);
+    
+      await client.close();
+    }
+    
+    updateDocument();
+
+Python
+    
+    
+    
+    from pymongo import MongoClient
+    
+    def update_document():
+        client = MongoClient('mongodb://<username>:<password>@<cluster-endpoint>:27017/?tls=true&tlsCAFile=global-bundle.pem&replicaSet=rs0&readPreference=secondaryPreferred&retryWrites=false')
+        db = client.test
+        collection = db.example
+    
+        collection.update_one(
+            {"Item": "Pen"},
+            {"$set": {"Item": "Gel Pen"}}
+        )
+    
+        updated_document = collection.find_one({"Item": "Gel Pen"})
+        print(updated_document)
+    
+        client.close()
+    
+    update_document()
+
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+
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+
+[Document Conventions](/general/latest/gr/docconventions.html)
+
+$rename
+
+$setOnInsert
+
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