get_node#

ManagedBlockchain.Client.get_node(**kwargs)#

Returns detailed information about a node.

Applies to Hyperledger Fabric and Ethereum.

Request Syntax

response = client.get_node(
    NetworkId='string',
    MemberId='string',
    NodeId='string'
)

Parameters:

NetworkId (string) –
[REQUIRED]

The unique identifier of the network that the node is on.
MemberId (string) –
The unique identifier of the member that owns the node.

Applies only to Hyperledger Fabric and is required for Hyperledger Fabric.
NodeId (string) –
[REQUIRED]

The unique identifier of the node.

Return type:

dict

Returns:

Response Syntax

{
    'Node': {
        'NetworkId': 'string',
        'MemberId': 'string',
        'Id': 'string',
        'InstanceType': 'string',
        'AvailabilityZone': 'string',
        'FrameworkAttributes': {
            'Fabric': {
                'PeerEndpoint': 'string',
                'PeerEventEndpoint': 'string'
            },
            'Ethereum': {
                'HttpEndpoint': 'string',
                'WebSocketEndpoint': 'string'
            }
        },
        'LogPublishingConfiguration': {
            'Fabric': {
                'ChaincodeLogs': {
                    'Cloudwatch': {
                        'Enabled': True|False
                    }
                },
                'PeerLogs': {
                    'Cloudwatch': {
                        'Enabled': True|False
                    }
                }
            }
        },
        'StateDB': 'LevelDB'|'CouchDB',
        'Status': 'CREATING'|'AVAILABLE'|'UNHEALTHY'|'CREATE_FAILED'|'UPDATING'|'DELETING'|'DELETED'|'FAILED'|'INACCESSIBLE_ENCRYPTION_KEY',
        'CreationDate': datetime(2015, 1, 1),
        'Tags': {
            'string': 'string'
        },
        'Arn': 'string',
        'KmsKeyArn': 'string'
    }
}

Response Structure

(dict) –
- Node (dict) –
  
  Properties of the node configuration.
  - NetworkId (string) –
    
    The unique identifier of the network that the node is on.
  - MemberId (string) –
    
    The unique identifier of the member to which the node belongs.
    
    Applies only to Hyperledger Fabric.
  - Id (string) –
    
    The unique identifier of the node.
  - InstanceType (string) –
    
    The instance type of the node.
  - AvailabilityZone (string) –
    
    The Availability Zone in which the node exists. Required for Ethereum nodes.
  - FrameworkAttributes (dict) –
    
    Attributes of the blockchain framework being used.
    - Fabric (dict) –
      
      Attributes of Hyperledger Fabric for a peer node on a Managed Blockchain network that uses Hyperledger Fabric.
      - PeerEndpoint (string) –
        
        The endpoint that identifies the peer node for all services except peer channel-based event services.
      - PeerEventEndpoint (string) –
        
        The endpoint that identifies the peer node for peer channel-based event services.
    - Ethereum (dict) –
      
      Attributes of Ethereum for a node on a Managed Blockchain network that uses Ethereum.
      - HttpEndpoint (string) –
        
        The endpoint on which the Ethereum node listens to run Ethereum API methods over HTTP connections from a client. Use this endpoint in client code for smart contracts when using an HTTP connection. Connections to this endpoint are authenticated using Signature Version 4.
      - WebSocketEndpoint (string) –
        
        The endpoint on which the Ethereum node listens to run Ethereum JSON-RPC methods over WebSocket connections from a client. Use this endpoint in client code for smart contracts when using a WebSocket connection. Connections to this endpoint are authenticated using Signature Version 4.
  - LogPublishingConfiguration (dict) –
    
    Configuration properties for logging events associated with a peer node on a Hyperledger Fabric network on Managed Blockchain.
    - Fabric (dict) –
      
      Configuration properties for logging events associated with a node that is owned by a member of a Managed Blockchain network using the Hyperledger Fabric framework.
      - ChaincodeLogs (dict) –
        
        Configuration properties for logging events associated with chaincode execution on a peer node. Chaincode logs contain the results of instantiating, invoking, and querying the chaincode. A peer can run multiple instances of chaincode. When enabled, a log stream is created for all chaincodes, with an individual log stream for each chaincode.
        
        Cloudwatch (dict) –
        
        Parameters for publishing logs to Amazon CloudWatch Logs.
        
        Enabled (boolean) –
        
        Indicates whether logging is enabled.
      - PeerLogs (dict) –
        
        Configuration properties for a peer node log. Peer node logs contain messages generated when your client submits transaction proposals to peer nodes, requests to join channels, enrolls an admin peer, and lists the chaincode instances on a peer node.
        
        Cloudwatch (dict) –
        
        Parameters for publishing logs to Amazon CloudWatch Logs.
        
        Enabled (boolean) –
        
        Indicates whether logging is enabled.
  - StateDB (string) –
    
    The state database that the node uses. Values are LevelDB or CouchDB.
    
    Applies only to Hyperledger Fabric.
  - Status (string) –
    
    The status of the node.
    - CREATING - The Amazon Web Services account is in the process of creating a node.
    - AVAILABLE - The node has been created and can participate in the network.
    - UNHEALTHY - The node is impaired and might not function as expected. Amazon Managed Blockchain automatically finds nodes in this state and tries to recover them. If a node is recoverable, it returns to AVAILABLE. Otherwise, it moves to FAILED status.
    - CREATE_FAILED - The Amazon Web Services account attempted to create a node and creation failed.
    - UPDATING - The node is in the process of being updated.
    - DELETING - The node is in the process of being deleted.
    - DELETED - The node can no longer participate on the network.
    - FAILED - The node is no longer functional, cannot be recovered, and must be deleted.
    - INACCESSIBLE_ENCRYPTION_KEY - The node is impaired and might not function as expected because it cannot access the specified customer managed key in KMS for encryption at rest. Either the KMS key was disabled or deleted, or the grants on the key were revoked. The effect of disabling or deleting a key or of revoking a grant isn’t immediate. It might take some time for the node resource to discover that the key is inaccessible. When a resource is in this state, we recommend deleting and recreating the resource.
  - CreationDate (datetime) –
    
    The date and time that the node was created.
  - Tags (dict) –
    
    Tags assigned to the node. Each tag consists of a key and optional value.
    
    For more information about tags, see Tagging Resources in the Amazon Managed Blockchain Ethereum Developer Guide, or Tagging Resources in the Amazon Managed Blockchain Hyperledger Fabric Developer Guide.
    - (string) –
      - (string) –
  - Arn (string) –
    
    The Amazon Resource Name (ARN) of the node. For more information about ARNs and their format, see Amazon Resource Names (ARNs) in the Amazon Web Services General Reference.
  - KmsKeyArn (string) –
    
    The Amazon Resource Name (ARN) of the customer managed key in Key Management Service (KMS) that the node uses for encryption at rest. If the value of this parameter is "AWS Owned KMS Key", the node uses an Amazon Web Services owned KMS key for encryption. The node inherits this parameter from the member that it belongs to.
    
    For more information, see Encryption at Rest in the Amazon Managed Blockchain Hyperledger Fabric Developer Guide.
    
    Applies only to Hyperledger Fabric.

Exceptions

ManagedBlockchain.Client.exceptions.InvalidRequestException
ManagedBlockchain.Client.exceptions.AccessDeniedException
ManagedBlockchain.Client.exceptions.ResourceNotFoundException
ManagedBlockchain.Client.exceptions.ThrottlingException
ManagedBlockchain.Client.exceptions.InternalServiceErrorException