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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 Fabric: Blockchain consistency checks

I have a few questions on internal consistency checks in HLF. Thanks in advance for any information. Which part of the HLF system keeps track of the consistency of the blockchain? If I were to open the HLF ledger file of a peer (on the docker…
SierraBravo
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HyperLedger Fabric v1.1 adding organizations to existing channels

Following is given as part of hyperldedger fabric documentation for v1.1: Switching between organizations to sign a config transaction (or to do anything else) is not reflective of a real-world Fabric operation. A single container would never be…
Sarageorge
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Hyperledger composer install is not installing business network

I am using Ubuntu 16.04.2 LTS as VM, and composer v0.19.1. I have installed all the prerequisites as well as hyperledger composer and fabric by folowing the documents at hyperledger composer playgroung. I have followed the tutorial line by line to…
E. Erfan
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Hyperledger communication between multiple machine

I have created a network composed by two nodes using this tutorial: Multiple Machine. In the node with orderer and ca installed, I can use the composer-playground to interact with the blockchain. Instead, analysing the logs of the docker on the…
Auron
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hyperledger chaincode lib not found

Hi to all who can help. Currently developing a chaincode for fabric version 1.0. The problem is, even after vendoring, when I do the deployment, I get this error. [DEBUG] instantiate-chaincode - ============ Instantiate chaincode on organization…
João Antunes
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What is an Artifact in Hyperledger?

I see the word everywhere in building a Hyperledger network, but I don't exactly know what it is and the Hyperledger docs don't return a definition when I query them. Maybe it's a dumb question because the docs don't define it and assume you should…
BlockchainDeveloper
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Hyperledger Composer Installation Failed

I'm new to hyperledger composer, and is now using ubuntu 16.04 LTS following the official guides. But I encountered some problems, please help me out if possible, thanks!!! I'm connecting it via xshell, how can I get a GUI? I'm not sure how to view…
David
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Docker-compose volumes not mounted correctly in VirtualBox under Windows

I am trying to run Hyperledger's BYFN Tutorial on a Win10 Home using Docker Toolbox, with VirtualBox 5.2.4. I am using the default image for the VirtualBox VM. I have set up a shared folder (not in C:/Users, but on my other drive) and it seems to be…
Teodor Savov
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formControlName value Displayed in JSON Format in Template

where offers is an array. It returns output [object Object] . How to displayed it as a JSON format??
Mehadi Hassan
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Display ngModel Object In Html Template

Here is the .html code [ngModel]="offers" formControlName="offers" It Output: [object Object] How could I got the offers array value??
Mehadi Hassan
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When creating a block through a transaction, is it proper to write the device's private key as a signature on the block?

I want to create a block-chain environment for devices. When creating a block through a transaction, is it proper to write the device's private key as a signature on the block?
user1005
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Hyperledger Composer: Error: Error trying login and get user Context. (code 20)

I've been working through the Hyperledger Composer tutorials (specifically the developer one). I've hit a brick wall on this error code. From what I've found online, this is a "general network error" problem that could possibly be the result of some…
k.burk
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composer -v throws error after global installation of composer-cli

i am getting following error when i run composer -v after installing composer-cli globally npm i -g composer-cli :- /usr/local/lib/node_modules/composer-cli/node_modules/composer-common/lib/cardstore/businessnetworkcardstore.js:54 async…
Sriram J
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Hyperledger Java SDK Client Event Listener

I have a Java SDK based client for the Hyperledger fabric and am able to connect and send transaction proposal requests, create entries in the ledger and query the ledger. I am struggling with registering and listening to BLOCK and CHAINCODE…
hmahidhara
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How channels are managed within Fabric?

I am new to this tech but I am close to the concept of Channel. I understand that the channel are ledgers within a bigger ledger( i.e. small chain specific to some users only within the entire blockchain). Based on this I have few questions. Lets…
Bilbo Baggins
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