This is the new *CloudFormation Template Reference Guide*. Please update your bookmarks and links. For help getting started with CloudFormation, see the [AWS CloudFormation User Guide](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/Welcome.html).

# AWS::ManagedBlockchain::Node
<a name="aws-resource-managedblockchain-node"></a>

**Note**  
End of support notice: Amazon Managed Blockchain will stop accepting new customers on October 29, 2026. Existing customers can continue using Amazon Managed Blockchain until September 29, 2027. After September 29, 2027 you will no longer be able to access Amazon Managed Blockchain. For more information, see [Amazon Managed Blockchain availability change](https://docs.aws.amazon.com/managed-blockchain/latest/hyperledger-fabric-dev/managed-blockchain-end-of-support.html).

Creates a node on the specified blockchain network.

Applies to Hyperledger Fabric and Ethereum.

## Syntax
<a name="aws-resource-managedblockchain-node-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-resource-managedblockchain-node-syntax.json"></a>

```
{
  "Type" : "AWS::ManagedBlockchain::Node",
  "Properties" : {
      "[MemberId](#cfn-managedblockchain-node-memberid)" : {{String}},
      "[NetworkId](#cfn-managedblockchain-node-networkid)" : {{String}},
      "[NodeConfiguration](#cfn-managedblockchain-node-nodeconfiguration)" : {{NodeConfiguration}}
    }
}
```

### YAML
<a name="aws-resource-managedblockchain-node-syntax.yaml"></a>

```
Type: AWS::ManagedBlockchain::Node
Properties:
  [MemberId](#cfn-managedblockchain-node-memberid): {{String}}
  [NetworkId](#cfn-managedblockchain-node-networkid): {{String}}
  [NodeConfiguration](#cfn-managedblockchain-node-nodeconfiguration): {{
    NodeConfiguration}}
```

## Properties
<a name="aws-resource-managedblockchain-node-properties"></a>

`MemberId`  <a name="cfn-managedblockchain-node-memberid"></a>
The unique identifier of the member to which the node belongs. Applies only to Hyperledger Fabric.  
*Required*: No  
*Type*: String  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`NetworkId`  <a name="cfn-managedblockchain-node-networkid"></a>
The unique identifier of the network for the node.  
Ethereum public networks have the following `NetworkId`s:  
+  `n-ethereum-mainnet` 
*Required*: Yes  
*Type*: String  
*Minimum*: `1`  
*Maximum*: `32`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`NodeConfiguration`  <a name="cfn-managedblockchain-node-nodeconfiguration"></a>
Configuration properties of a peer node.  
*Required*: Yes  
*Type*: [NodeConfiguration](aws-properties-managedblockchain-node-nodeconfiguration.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

## Return values
<a name="aws-resource-managedblockchain-node-return-values"></a>

### Ref
<a name="aws-resource-managedblockchain-node-return-values-ref"></a>

When you pass the logical ID of this resource to the intrinsic `Ref` function, `Ref` returns the node ID.

For more information about using the `Ref` function, see [`Ref`](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/intrinsic-function-reference-ref.html).

### Fn::GetAtt
<a name="aws-resource-managedblockchain-node-return-values-fn--getatt"></a>

The `Fn::GetAtt` intrinsic function returns a value for a specified attribute of this type. The following are the available attributes and sample return values.

For more information about using the `Fn::GetAtt` intrinsic function, see [`Fn::GetAtt`](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/intrinsic-function-reference-getatt.html).

#### 
<a name="aws-resource-managedblockchain-node-return-values-fn--getatt-fn--getatt"></a>

`Arn`  <a name="Arn-fn::getatt"></a>
The Amazon Resource Name (ARN) of the node.

`MemberId`  <a name="MemberId-fn::getatt"></a>
The unique identifier of the member in which the node is created. Applies only to Hyperledger Fabric.

`NetworkId`  <a name="NetworkId-fn::getatt"></a>
The unique identifier of the network that the node is in.

`NodeId`  <a name="NodeId-fn::getatt"></a>
The unique identifier of the node.

## Examples
<a name="aws-resource-managedblockchain-node--examples"></a>



**Topics**
+ [Create a node on an Ethereum network](#aws-resource-managedblockchain-node--examples--Create_a_node_on_an_Ethereum_network)
+ [Create a node in a Hyperledger Fabric network member](#aws-resource-managedblockchain-node--examples--Create_a_node_in_a_Hyperledger_Fabric_network_member)

### Create a node on an Ethereum network
<a name="aws-resource-managedblockchain-node--examples--Create_a_node_on_an_Ethereum_network"></a>



#### YAML
<a name="aws-resource-managedblockchain-node--examples--Create_a_node_on_an_Ethereum_network--yaml"></a>

```
Description: "Basic Ethereum node template"
Parameters:
  NetworkId:
    Type: String
  InstanceType:
    Type: String
  AvailabilityZone: 
    Type: String
Resources:
  Node:
    Type: "AWS::ManagedBlockchain::Node"
    Properties:
      NetworkId: !Ref NetworkId
      NodeConfiguration:
        InstanceType: !Ref InstanceType
        AvailabilityZone: !Ref AvailabilityZone
```

#### JSON
<a name="aws-resource-managedblockchain-node--examples--Create_a_node_on_an_Ethereum_network--json"></a>

```
{
    "Description": "Basic Ethereum node template",
    "Parameters": {
        "NetworkId": {
            "Type": "String"
        },
        "InstanceType": {
            "Type": "String"
        },
        "AvailabilityZone": {
            "Type": "String"
        }
    },
    "Resources": {
        "Node": {
            "Type": "AWS::ManagedBlockchain::Node",
            "Properties": {
                "NetworkId": "NetworkId",
                "NodeConfiguration": {
                    "InstanceType": "InstanceType",
                    "AvailabilityZone": "AvailabilityZone"
                }
            }
        }
    }
}
```

### Create a node in a Hyperledger Fabric network member
<a name="aws-resource-managedblockchain-node--examples--Create_a_node_in_a_Hyperledger_Fabric_network_member"></a>



#### YAML
<a name="aws-resource-managedblockchain-node--examples--Create_a_node_in_a_Hyperledger_Fabric_network_member--yaml"></a>

```
Description: "Basic Hyperledger Fabric node template"
Parameters:
  NetworkId:
    Type: String
  MemberId:
    Type: String
  InstanceType:
    Type: String
  AvailabilityZone:
    Type: String

Resources:
  InitialNode:
    Type: "AWS::ManagedBlockchain::Node"
    Properties:
      NetworkId: !Ref NetworkId
      MemberId: !Ref MemberId
      NodeConfiguration:
        InstanceType: !Ref InstanceType
        AvailabilityZone: !Ref AvailabilityZone
```

#### JSON
<a name="aws-resource-managedblockchain-node--examples--Create_a_node_in_a_Hyperledger_Fabric_network_member--json"></a>

```
{
  "Description": "Basic Hyperledger Fabric node template",
  "Parameters": {
    "NetworkId": {
      "Type": "String"
    },
    "MemberId": {
      "Type": "String"
    },
    "InstanceType": {
      "Type": "String"
    },
    "AvailabilityZone": {
      "Type": "String"
    }
  },
  "Resources": {
    "InitialNode": {
      "Type": "AWS::ManagedBlockchain::Node",
      "Properties": {
        "NetworkId": "NetworkId",
        "MemberId": "MemberId",
        "NodeConfiguration": {
          "InstanceType": "InstanceType",
          "AvailabilityZone": "AvailabilityZone"
        }
      }
    }
  }
}
```