AWS Database Blog

Category: Amazon Managed Blockchain

Building a blockchain application in Java using Amazon Managed Blockchain

This post demonstrates how to set up a blockchain application written in Java to read and write data to Managed Blockchain using the Fabric Java SDK. The Java SDK allows customers with applications written in Java to integrate blockchain support with their existing codebase. This makes it easier to handle rich data structures and complex business logic before writing records to the blockchain. You can also integrate Managed Blockchain using the Fabric Node.js SDK. For more information, see Building serverless blockchain application with Fabric Node.js SDK.

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Accessing Amazon Managed Blockchain services from blockchain applications running in shared Amazon VPCs

Many AWS customers use AWS Organizations and shared virtual private clouds (VPCs) to reduce operational costs and optimize the use of shared resources. For example, shared VPCs allow you to segregate ownership between systems management and application development teams. For more information, see VPC sharing: A new approach to multiple accounts and VPC management. Using […]

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How Contura Energy built a letter of credit application on Amazon Managed Blockchain

This is a guest post from Sammy Jordan, Assistant Treasurer at Contura Energy, in partnership with Emile Baizel, Sr. Blockchain Architect at AWS. In their own words, “Contura Energy is a Tennessee-based coal supplier with affiliate mining operations across major coal basins in Virginia, West Virginia, and Pennsylvania. We export metallurgical coal, a key raw material in steelmaking, to customers on five continents and approximately 25 countries.” Contura chose to run the blockchain network on Amazon Managed Blockchain because it’s a fully managed service that scales automatically, as needed, and removes a lot of the heavy lifting needed to operate a blockchain network. Additionally, you can easily integrate Managed Blockchain with other AWS services, and Managed Blockchain simplifies growing and administering the blockchain network. Network governance and inviting new members can be done via the AWS Management Console, and each member is billed separately based on their own usage.

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Building an event-based application with Amazon Managed Blockchain

Applications built on Amazon Managed Blockchain allow multiple parties to transact with one another in a trusted environment with the ability for each party to endorse transactions before they are committed to the blockchain. Blockchain events allow applications to respond to activity and updates to the smart contracts that have been deployed to the network, […]

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Tracking activity in Amazon Managed Blockchain with Amazon CloudWatch Logs

AWS recently launched a new integration between Amazon Managed Blockchain and Amazon CloudWatch. You can now benefit from detailed logs showing important activity in your blockchain networks, including activity in your member certificate authority (CA), Hyperledger Fabric peer nodes, and chaincode. This post shows how to use these new features to track blockchain activity in […]

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Building a serverless blockchain application with Amazon Managed Blockchain

Amazon Managed Blockchain makes it easy to create and manage scalable blockchain networks.  In Part 1 of this multi-part post, you learned how to deploy a Hyperledger Fabric blockchain using Amazon Managed Blockchain.  You also learned how to deploy a REST API to provide a simple interface to read and write to the network. To […]

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Amazon Managed Blockchain recorded sessions and workshops from AWS re:Invent 2019

AWS re:Invent is always an exciting time to engage with our customers to learn more about their use cases, receive feedback for our services, and share information about our new features and capabilities. The Amazon Managed Blockchain team delivered several sessions and workshops, highlighting how customers are leveraging blockchain technology and diving deep into building […]

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Your guide to Amazon Managed Blockchain and Amazon QLDB breakouts, workshops, and chalk talks at AWS re:Invent 2019

AWS re:Invent 2019 is almost here. This post includes a complete list of Amazon Managed Blockchain and Amazon Quantum Ledger Database (QLDB) breakouts, workshops, and chalk talks taking place at AWS re:Invent 2019. This year we have 22 total sessions on Amazon Managed Blockchain and Amazon QLDB including 7 breakouts, 5 chalk talks, 6 builders sessions, and 4 […]

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Add new members to a Hyperledger Fabric channel on Amazon Managed Blockchain

In the previous post in this series, you learned how to build a Hyperledger Fabric network using Amazon Managed Blockchain. After creating the network, you deployed a three-tier application that consisted of Fabric chaincode, a RESTful API, and a user interface application. The network you created was a single-member network, suitable for experimenting and learning […]

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Build and deploy an application for Hyperledger Fabric on Amazon Managed Blockchain

At re:Invent 2018, AWS announced Amazon Managed Blockchain, a fully managed service that makes it easy to create and manage scalable blockchain networks using the popular open source frameworks Hyperledger Fabric and Ethereum. General availability of Hyperledger Fabric was announced in April 2019, with support for Ethereum coming soon. For additional details about Managed Blockchain, […]

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