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Questions tagged [amazon-managed-blockchain]

Amazon Managed Blockchain is a fully managed service for creating and managing blockchain networks using open source frameworks. Blockchain allows you to build applications where multiple parties can securely and transparently run transactions and share data without the need for a trusted, central authority.

What Is Amazon Managed Blockchain?

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Key differences between Amazon Managed Blockchain and Quantum Ledger Database (QLDB)?

What are the key differences between Amazon Managed Blockchain and Amazon QLDB ? Under which scenarios is it advisable to use which service for distributed ledgers and when ? How can the performance vary between the two services in terms of no of…
asing177
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AWS Managed Blockchain Bundling libraries NodeJS

in https://docs.aws.amazon.com/managed-blockchain/latest/managementguide/managed-blockchain-hyperledger-develop-chaincode.html it mentions Dependencies on other versions of fabric-shim or other library packages require that you bundle them with…
Mahmoud Khraisha
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Issue connecting my lambda function to Amazon managed blockchain

I am failing with a DNS 14 message when trying to call a lambda function to invoke chaincode on my Amazon Managed Hyperledger Blockchain. ERROR Failed proposal response. Status code: undefined. Message: 14 UNAVAILABLE: DNS resolution failed.…
Chris Iba
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How Can I bundle a simple node.js application

I am working with hyperledger-fabric on amazon managed blockchain. There I have written the chaincode with node.js. The problem is, the dependencies I'm using is not supported in amazon managed blockchain's peer. That's why I need to bundle my…
Khandker Tanvir Hasan
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How to get orderer logs | amazon managed blockchain

I setup hyperledger fabric in amazon managed blockchain. I can get peer node logs, CA logs, chaincode logs. I do not know how to get orderer logs. That is required to fix this issue.
Gurunath
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How does Amazon Managed Blockchain's QLDB handle permissions for the different orgs?

QLDB seems to be this centralized extension built upon the Fabric orderer service that allows you to query a replication of the blockchain network in an SQL-like manner. With the different orgs on the network, I was wondering how QLDB handles…
atkayla
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Can't invoke nodejs chaincode on Hyperledger Fabric - Amazon Managed Blockchain

Following AWS's first steps on how to set up a blockchain network, I got stuck at step 7[1] where to package/install/approve/commit a chaincode. As a personal challenge, I tried using the asset-transfer-basic/chaincode-typescript project [2]. This…
Ricardo Passos
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How to get query transaction id from AWS managed blockchain using chaincode

I am not able to get transaction id from AWS managed blockchain using chaincode's stub.getState(key) method. Please suggest..
Malatesh Patil
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Error creating peer channel Amazon Managed Blockchain Hyperledger Fabric v1.4

I hope someone could help me with the following problem. I am using Amazon Managed Blockchain with the framework Hyperledge Fabric v1.4 and I followed this documentation…
Sergio Vega Pineda
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Whats the first step in creating a blockchain based certification system?

I have an understanding of how blockchain dAPPS are built, but I do not know which network I should use or which language to write the script in. Right now I am thinking about using AWS, but I am open to other suggestions.
Nish
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How to terminate AWS managed blockchain instance

I followed these instructions below to get an AWS Ethereum instance running, however since I am just learning blockchain, I would like to create an image and start/stop as needed. However when I go to EC2 and stop my instance, it restarts. I saw…
Primico
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docker exec cli peer channel create | failed to create new connection: context deadline exceeded | amazon managed blockchain

I am trying to setup hyperledger fabric blockchain network using amazon managed blockchain following this guide. In the step 6, to create the channel I have executed the following command, docker exec cli peer channel create -c hrschannel -f…
Gurunath
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Configuring events on the amazon managed blockchain

How do i Configure events on the amazon managed blockchain I have configured amazon managed blockchain setup with Hyperledger. The network is prepared with a single member and a single peer node. Hyperledger Fabric Client setup is with Golang…
Pulkit Khaitan
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Adding member to existing hyperledger Fabric 1.2 network on amazonmanaged blockchain

I am exploring amazon managed blockchain. Network (Hyperledger Fabric 1.2) is created, first member is added, peer node is added and VPC Service endpoint is also created. A sample chainnode is invoked and I am also able to query the chain node. Now…
Moolshanker Kothari
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AWS AMB Private network connection with Hardhat

I have successfully established a Private Blockchain utilizing the AWS Managed Blockchain (AMB) service. Concurrently, I am managing an application through the Amplify service. In an effort to integrate the two systems, I have appended a node…
Abd Yazouri
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