# Node
<a name="API_Node"></a>

A structure that represents a node in a dependency graph, containing information about a service, resource, or other entity and its characteristics.

## Contents
<a name="API_Node_Contents"></a>

 ** KeyAttributes **   <a name="applicationsignals-Type-Node-KeyAttributes"></a>
The key attributes that identify this node, including Type, Name, and Environment information.  
Type: String to string map  
Map Entries: Maximum number of 4 items.  
Key Pattern: `[a-zA-Z]{1,50}`   
Value Length Constraints: Minimum length of 1. Maximum length of 1024.  
Value Pattern: `[ -~]*[!-~]+[ -~]*`   
Required: Yes

 ** Name **   <a name="applicationsignals-Type-Node-Name"></a>
The name of the entity represented by this node.  
Type: String  
Required: Yes

 ** NodeId **   <a name="applicationsignals-Type-Node-NodeId"></a>
A unique identifier for this node within the dependency graph.  
Type: String  
Required: Yes

 ** Duration **   <a name="applicationsignals-Type-Node-Duration"></a>
The duration or processing time associated with this node, if applicable.  
Type: Double  
Required: No

 ** Operation **   <a name="applicationsignals-Type-Node-Operation"></a>
The operation associated with this node, if applicable.  
Type: String  
Required: No

 ** Status **   <a name="applicationsignals-Type-Node-Status"></a>
The status of the entity represented by this node.  
Type: String  
Required: No

 ** Type **   <a name="applicationsignals-Type-Node-Type"></a>
The type of entity represented by this node, such as `Service` or `Resource`.  
Type: String  
Required: No

## See Also
<a name="API_Node_SeeAlso"></a>

For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/application-signals-2024-04-15/Node) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/application-signals-2024-04-15/Node) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/application-signals-2024-04-15/Node)