Managed Blockchain

Overview

CloudMock emulates Amazon Managed Blockchain, supporting network creation, member and node management, and proposal voting.

Supported Operations

Operation	Status	Notes
CreateNetwork	Supported	Creates a blockchain network
GetNetwork	Supported	Returns network details
ListNetworks	Supported	Lists all networks
GetMember	Supported	Returns member details
ListMembers	Supported	Lists members of a network
CreateNode	Supported	Creates a peer node
GetNode	Supported	Returns node details
ListNodes	Supported	Lists nodes in a network
DeleteNode	Supported	Deletes a node
CreateProposal	Supported	Creates a governance proposal
GetProposal	Supported	Returns proposal details
VoteOnProposal	Supported	Casts a vote on a proposal
ListProposals	Supported	Lists proposals for a network

Quick Start

Node.js

import { ManagedBlockchainClient, CreateNetworkCommand } from '@aws-sdk/client-managedblockchain';

const client = new ManagedBlockchainClient({
  endpoint: 'http://localhost:4566',
  region: 'us-east-1',
  credentials: { accessKeyId: 'test', secretAccessKey: 'test' },
});

const { NetworkId, MemberId } = await client.send(new CreateNetworkCommand({
  Name: 'my-network',
  Framework: 'HYPERLEDGER_FABRIC',
  FrameworkVersion: '2.2',
  VotingPolicy: { ApprovalThresholdPolicy: { ThresholdPercentage: 50, ProposalDurationInHours: 24, ThresholdComparator: 'GREATER_THAN' } },
  MemberConfiguration: { Name: 'my-member', FrameworkConfiguration: { Fabric: { AdminUsername: 'admin', AdminPassword: 'Password123' } } },
}));
console.log(NetworkId);

Python

import boto3

client = boto3.client('managedblockchain',
    endpoint_url='http://localhost:4566',
    region_name='us-east-1',
    aws_access_key_id='test',
    aws_secret_access_key='test')

response = client.create_network(
    Name='my-network',
    Framework='HYPERLEDGER_FABRIC',
    FrameworkVersion='2.2',
    VotingPolicy={'ApprovalThresholdPolicy': {'ThresholdPercentage': 50, 'ProposalDurationInHours': 24, 'ThresholdComparator': 'GREATER_THAN'}},
    MemberConfiguration={'Name': 'my-member', 'FrameworkConfiguration': {'Fabric': {'AdminUsername': 'admin', 'AdminPassword': 'Password123'}}})
print(response['NetworkId'])

Configuration

cloudmock.yml

services:
  managedblockchain:
    enabled: true

Known Differences from AWS

• No actual blockchain network is provisioned
• Nodes do not run Hyperledger Fabric or Ethereum
• Proposal voting is tracked but does not trigger real governance actions