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Questions tagged [hyperledger]

Hyperledger is an open source collaborative effort created to advance cross-industry blockchain technologies. It is a global collaboration, hosted by The Linux Foundation, including leaders in finance, banking, IoT, supply chain, manufacturing and technology.

Hyperledger is an open source collaborative effort created to advance cross-industry blockchain technologies. It is a global collaboration, hosted by The Linux Foundation, including leaders in finance, banking, IoT, supply chain, manufacturing and technology. (https://www.hyperledger.org/)

Code and documentation is available at: https://github.com/hyperledger

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Hyperledger Blockchain Endorsement Policy Guidelines/Recommendation

I can modify Hyperledger's endorsement policy at instantiate time as described in the docs here. However, is there some guideline on how many peers should endorse a transaction? I understand that not all peers need to be endorsing peers but…
OneMoreQuestion
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Creating own hyperledger fabric network Error main -> CRIT 003 Cannot define new channel with no Application section

I would like to create my hyperledger fabric network but I face an error when I try to create a channel. error on outputChannelCreateTx: Cannot define a new channel with no Application section My configtx file has of course application section, so…
Cherrio
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Schedule a task inside the Hyperledger Composer ledger

I need to update some field every day. I came up with 2 possible solutions: Update it via REST API - for example, a program that runs on some server, updates the field via REST API and then sleeps 1 day. Problem: if the program stops it does not…
SenchoPens
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Error Starting Hyperledger Fabric

I am using the Hyperledger-composer install guide to create the environemnet in aws ubuntu instance. I get the following error: Development only script for Hyperledger Fabric control Running 'startFabric.sh' FABRIC_VERSION is unset,…
user2526236
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hyperledger fabric - stuck at creating cli

I was building the network at fabric level. Following this tutorial http://hyperledger-fabric.readthedocs.io/en/latest/build_network.html I have made changes in the following files and added 2 more peers in organisation1…
PKB
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Extra dev peers in hyperledger fabric

I am following the two org hyperledger fabric example. After starting the network I can see 4 extra dev peers running along with 4 peers(2 peers per org) in docker containers. But in configuration I gave only 4 peers. I am not understanding how the…
user9040429
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Create channel between 2 peers in the same organization in Hyperledger Fabric

In HyperLedger Fabric is it possible to create a channel between peers that belong to the same organization / MSP? If so, how can this be configured in crypto-config.yaml and configtx.yaml?
andr111
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How to set up a raspberry pi to a fabric network, to use hyperledger composer?

I need to implement a decentralized hyperledger composer but I am not sure what to do. I want my raspberry pi to be a participant on a fabric network, created by hyperledeger composer tool.
Mohit Kukreja
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Hyperledger Composer on windows

Please help! Can I install Hyperledger Composer on windows? I see in this link have install with Ubuntu and MacOS but have not windows. https://hyperledger.github.io/composer/installing/installing-prereqs.html
Dara Sok
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Can I build a DApp using Hyperledger?

I want to build a DApp. Is it possible to build it using Hyperledger Frameworks? If yes, how is it different from a DApp built using Ethereum? Thanks in advance.
Punit Agarwal
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How to use swarm with hyperledger cello

I try to deploy a hyperledger fabric blockchain with 4 peers and kafka using a swarm cluster compose of a manager and two worker. Hyperledger Cello seems to be very use to do it but I have the following error. I already managed to use Cello with…
Charles Garnier
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How to host blockchain app for public demo if it requires locally imported cards to connect to business network?

I have a local Node.js app all ready to go that talks to the Fabric blockchain on my cloud Kubernetes cluster. As I understand, this works because: I have a card in terminal composer import card in Node.js…
atkayla
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Cannot install EncCC chaincode

I am trying to test Fabric chaincode encryption capabilities introduced in version 1.1 with EncCC chaincode. The tutorial on github starts from the moment when it is assumed that chaincode is already installed. I manage to install the chaincode by…
99hardforks
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How to create marbles with the marbles02 chaincode on peer0 Org1 and on peer0 Org2?

I have set up data persistence in the peer and the couchdb containers and have run through the commands with the marbles02 chaincode manually on peer0 Org1 in the cli container (with the command line commented in docker-compose-cli.yaml) without…
Lawrence Ngan
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How to restart fabric containers (x86_64-1.1.0-preview) with data persistence to perform chaincode invoke functions normally?

I have set up data persistence in the peer and the couchdb containers and have run through the commands with the chaincode_example02 chaincode manually on both peers in the cli container (with the command line commented in docker-compose-cli.yaml). …
Lawrence Ngan
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