AWS documentdb documentation change

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

File: documentdb/latest/developerguide/each.md

Summary

Added new documentation page for the $each operator with examples in MongoDB Shell, Node.js, and Python

Security assessment

This change adds documentation for the $each MongoDB operator used with $push and $addToSet. The documentation includes standard code examples with TLS connection parameters, but there is no evidence this addresses a specific security issue or vulnerability. This appears to be routine feature documentation for array operations in DocumentDB.

Diff

diff --git a/documentdb/latest/developerguide/each.md b/documentdb/latest/developerguide/each.md
index 8b1378917..c43d8dba1 100644
--- a//documentdb/latest/developerguide/each.md
+++ b//documentdb/latest/developerguide/each.md
@@ -0,0 +1 @@
+[](/pdfs/documentdb/latest/developerguide/developerguide.pdf#each "Open PDF")
@@ -1,0 +3,114 @@
+[Documentation](/index.html)[Amazon DocumentDB](/documentdb/index.html)[Developer Guide](what-is.html)
+
+Example (MongoDB Shell)Code examples
+
+# $each
+
+The `$each` operator is used in conjunction with other update operators, such as `$push` and `$addToSet`, to add multiple values to an array field. It allows adding multiple elements to an array in a single operation, rather than having to execute multiple update operations.
+
+**Parameters**
+
+  * `value`: The array of values to add to the array field.
+
+
+
+
+## Example (MongoDB Shell)
+
+The following example demonstrates using the `$each` operator with the `$push` operator to add multiple elements to an array field.
+
+**Create sample documents**
+    
+    
+    db.fruits.insertOne({
+      _id: 1,
+      fruits: ["apple", "banana"]
+    })
+
+**Query example**
+    
+    
+    db.fruits.updateOne(
+      { _id: 1 },
+      { $push: { fruits: { $each: ["cherry", "durian", "elderberry"] } } }
+    )
+
+**View updated document**
+    
+    
+    db.fruits.findOne({ _id: 1 })
+
+**Output**
+    
+    
+    {
+      _id: 1,
+      fruits: [ 'apple', 'banana', 'cherry', 'durian', 'elderberry' ]
+    }
+
+## Code examples
+
+To view a code example for using the `$each` 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('fruits');
+    
+      await collection.updateOne(
+        { _id: 1 },
+        { $push: { fruits: { $each: ["cherry", "durian", "elderberry"] } } }
+      );
+    
+      await client.close();
+    }
+    
+    example();
+
+Python
+    
+    
+    
+    from pymongo import MongoClient
+    
+    def example():
+        client = MongoClient('mongodb://<username>:<password>@<cluster-endpoint>:27017/?tls=true&tlsCAFile=global-bundle.pem&replicaSet=rs0&readPreference=secondaryPreferred&retryWrites=false')
+        db = client['test']
+        collection = db['fruits']
+    
+        collection.update_one(
+            {'_id': 1},
+            {'$push': {'fruits': {'$each': ['cherry', 'durian', 'elderberry']}}}
+        )
+    
+        client.close()
+    
+    example()
+
+![Warning](https://d1ge0kk1l5kms0.cloudfront.net/images/G/01/webservices/console/warning.png) **Javascript is disabled or is unavailable in your browser.**
+
+To use the Amazon Web Services Documentation, Javascript must be enabled. Please refer to your browser's Help pages for instructions.
+
+[Document Conventions](/general/latest/gr/docconventions.html)
+
+$currentDate
+
+$inc
+
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+
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+
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+
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