AWS documentdb documentation change

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

File: documentdb/latest/developerguide/in.md

Summary

Added new documentation page for the $in query operator in Amazon DocumentDB, including syntax, parameters, MongoDB shell example, code examples in Node.js and Python with TLS connections, and notes about limitations with dollar-prefixed field names

Security assessment

This is routine documentation for a query operator without evidence of addressing specific security vulnerabilities. However, it includes security documentation by providing TLS-enabled connection examples with encryption parameters (tls=true, tlsCAFile). The documentation also references functional limitations with dollar-prefixed fields but this is not security-related. The code examples demonstrate secure connection practices.

Diff

diff --git a/documentdb/latest/developerguide/in.md b/documentdb/latest/developerguide/in.md
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+++ b//documentdb/latest/developerguide/in.md
@@ -0,0 +1 @@
+[](/pdfs/documentdb/latest/developerguide/developerguide.pdf#in "Open PDF")
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+[Documentation](/index.html)[Amazon DocumentDB](/documentdb/index.html)[Developer Guide](what-is.html)
+
+Example (MongoDB Shell)Code examples
+
+# $in
+
+The `$in` operator in Amazon DocumentDB is a logical query operator that allows you to find documents where the value of a field equals any of the values specified in an array.
+
+**Parameters**
+
+  * `field`: The field to check against the provided array.
+
+  * `[value1, value2, ...]`: An array of values to match against the specified field.
+
+
+
+
+**Dollar (`$`) in field names**
+
+See [Dollar($) and dot(.) in field names](./functional-differences.html#functional-differences-dollardot) for limitations regarding querying `$` prefixed fields in `$in` in nested objects.
+
+## Example (MongoDB Shell)
+
+The following example demonstrates how to use the `$in` operator to find documents where the `color` field is one of the values in the provided array.
+
+**Create sample documents**
+    
+    
+    db.colors.insertMany([
+      { "_id": 1, "color": "red" },
+      { "_id": 2, "color": "green" },
+      { "_id": 3, "color": "blue" },
+      { "_id": 4, "color": "yellow" },
+      { "_id": 5, "color": "purple" }
+    ])
+
+**Query example**
+    
+    
+    db.colors.find({ "color": { "$in": ["red", "blue", "purple"] } })
+
+**Output**
+    
+    
+    { "_id": 1, "color": "red" },
+    { "_id": 3, "color": "blue" },
+    { "_id": 5, "color": "purple" }
+
+## Code examples
+
+To view a code example for using the `$in` command, choose the tab for the language that you want to use:
+
+Node.js
+    
+    
+    
+    const { MongoClient } = require('mongodb');
+    
+    async function findByIn() {
+      const client = await MongoClient.connect('mongodb://<username>:<password>@<cluster-endpoint>:27017/?tls=true&tlsCAFile=global-bundle.pem&replicaSet=rs0&readPreference=secondaryPreferred&retryWrites=false');
+      const db = client.db('test');
+      const collection = db.collection('colors');
+    
+      const result = await collection.find({ "color": { "$in": ["red", "blue", "purple"] } }).toArray();
+      console.log(result);
+    
+      await client.close();
+    }
+    
+    findByIn();
+
+Python
+    
+    
+    
+    from pymongo import MongoClient
+    
+    def find_by_in():
+        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.colors
+    
+        result = list(collection.find({ "color": { "$in": ["red", "blue", "purple"] } }))
+        print(result)
+    
+        client.close()
+    
+    find_by_in()
+
+![Warning](https://d1ge0kk1l5kms0.cloudfront.net/images/G/01/webservices/console/warning.png) **Javascript is disabled or is unavailable in your browser.**
+
+To use the Amazon Web Services Documentation, Javascript must be enabled. Please refer to your browser's Help pages for instructions.
+
+[Document Conventions](/general/latest/gr/docconventions.html)
+
+$gte
+
+$jsonSchema
+
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