Constructing a trade analytics platform with AWS Managed Blockchain and insights visualization in custom dashboards

To construct a trade analytics platform with AWS Managed Blockchain and insights visualization in custom dashboards using Pulumi, you'll need two crucial bits. First, Managed Blockchain needs to be used to manage your blockchain networks. This isn't directly supported by Pulumi as a resource, but you can provision this using the AWS SDK and build an interface around it. Second, the aws.cloudwatch.Dashboard resource can be utilized for creating custom dashboards to visualize data.

Here's a skeleton to get you started. Since Managed Blockchain isn't directly supported, only the dashboard setup is demonstrated here.

import * as pulumi from "@pulumi/pulumi";
import * as aws from "@pulumi/aws";

// Construct a new CloudWatch dashboard
let dashboard = new aws.cloudwatch.Dashboard("tradeAnalyticsDashboard", {
    dashboardName: "TradeAnalytics",
    dashboardBody: JSON.stringify({
        // Define your dashboard widgets here, for example:
        widgets: [
            {
                type: "metric",
                x: 0,
                y: 0,
                width: 12,
                height: 6,
                properties: {
                    metrics: [
                        ["AWS/ManagedBlockchain", "CurrentMessage", "NetworkId", "{ManagedBlockchainNetworkId}", "NodeId", "{ManagedBlockchainNodeId}", "MemberId", "{ManagedBlockchainMemberId}"]
                    ],
                    period: 300,
                    stat: "Average",
                    region: "us-west-2",
                    title: "Trade Volume"
                }
            },
            // Add more widgets as needed
        ]
    })
});

// Export the name of the dashboard
export const dashboardName = dashboard.dashboardName;

This program creates a CloudWatch dashboard to visualize transaction volumes from your Managed Blockchain network. The {ManagedBlockchainNetworkId}, {ManagedBlockchainNodeId}, and {ManagedBlockchainMemberId} placeholders must be replaced with the appropriate values from your own application.

Regarding the AWS Managed Blockchain, unfortunately, as of this moment, Pulumi doesn't support the provisioning of Managed Blockchain resources directly. You'll likely need to intertwine the Pulumi program with the AWS SDK for Managed Blockchain (or CloudFormation recipes, if so inclined) to create and manage your blockchain network.

Note that to create working dashboards, you may need to integrate with other AWS services (for example, AWS Lambda for processing blockchain events, DynamoDB for storing the data before visualizing it, etc.) based on your application's demands and the specific blockchain technology used (Hyperledger Fabric, Ethereum, etc.).