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"composer card" Commands
What can I do with "composer card" command? "composer card" commands are part of the Composer CLI command set. It allows you to manage access cards stored in the Composer Wallet, which is located at "~/.composer/cards" directory. Here is the syntax of the "composer card" commands: $ composer card he...
2020-07-22, 1075🔥, 0💬

Manage basic-network with cli Container
How to Manage basic-network with cli Container? You can follow this tutorial to Manage basic-network with cli Container. 1. Start all containers, including cli, defined in the docker-compose.yml file: $ cd ~/hyperledger-binaries/fabric- samples/basic-network$ docker-compose -f docker-compose.yml up ...
2020-03-15, 1074🔥, 0💬

Pull Hyperledger Fabric Peer Image
How to Pull Hyperledger Fabric Peer Image from docker hub? You can follow this tutorial to Pull Hyperledger Fabric Peer Image from docker hub. 1. Check the Docker local repository: $ docker image list | grep fabric-peer hyperledger/fabric-peer latest a1e3874f338b 3 weeks ago 178MB hyperledger/fabric...
2019-05-10, 1073🔥, 0💬

"configtxgen" Command - Build channel.tx
How to run "configtxgen" command to build a transaction message to create the channel in BYFN (Build Your First Network)? You can follow this tutorial to run "configtxgen" command to build a transaction message to create the channel in BYFN. The "configtxgen" command file is located in the ../bin di...
2020-10-20, 1069🔥, 0💬

Auto-Start of Required Chaincode Container
Why a chaincode container is automatically started? A chaincode container will be automatically started, if a chaincode is invoked and the chaincode container's peer is a required peer for the chaincode. Let's continue with the previous tutorial to see this behavior. 6. Stop the chaincode container ...
2020-07-03, 1065🔥, 2💬

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start.sh - Start basic-network
How to run start.sh script to start the Hyperledger Fabric example network, basic-network? You can follow this tutorial to run start.sh script to start the Hyperledger Fabric example network, basic-network. 1. Stop existing Hyperledger Fabric Networks on your local host by stopping all Docker contai...
2020-04-25, 1064🔥, 0💬

Create Identity Wallet for Isabella
How to Create Identity Wallet for Isabella at MagnetoCorp? Once Isabella gets a copy of the private key and the certificate that represents her identity, User1@org1.example.com, on the PaperNet, she needs to put them in a local wallet. Whenever Isabella runs an application, it will open the wallet a...
2019-11-21, 1058🔥, 0💬

WYFA (Writing Your First Application)
Where to find tutorials on WYFA (Writing Your First Application) Network? I need help to follow the document provided at hyperledger-fabric.readthedocs .ioWebsite. Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team on WYFA (Writing Your First Applica...
2020-03-15, 1057🔥, 0💬

Invoke Chaincode Transaction on BYFN Channel
How to Invoke Chaincode Transaction on BYFN Channel? An instance of a chaincode can be viewed as an object of a class in an execution environment. It can hold transaction operations to manage its properties. You can run the "peer chaincode invoke" command to invoke the "Invoke" operation of a given ...
2020-09-30, 1056🔥, 0💬

Add Identity using JSON String
How to add a new identity using a JSON string? You can follow this tutorial to add a new identity using a JSON string. 1. Go to the Fabric CA Client system where you have the "admin" wallet created in the previous tutorial. $ cd ~/fabric-ca/native-client/admi n$ export FABRIC_CA_CLIENT_HOME=~/fabric ...
2019-09-16, 1055🔥, 0💬

Inspect Docker Container Configuration
How to Inspect the Configuration of a Docker Container? You can use the "docker inspect" command to view the Configuration of a given Docker Container. For example, Let's look at the configuration of the peer0.org1 container of the BYFN network. $ docker inspect peer0.org1.example.com [ { "Id": "b81...
2020-05-29, 1054🔥, 0💬

Hyperledger Fabric Environment Requirement
What are requirements for installing a Hyperledger Fabric development environment? Here are requirements for installing a Hyperledger Fabric 1.4 development environment: Operating System - Ubuntu Linux 14.04 / 16.04 LTS, or Mac OS 10.12. Git Client - Version 2.9 or higher. Git client allows you to d...
2020-11-11, 1053🔥, 0💬

Check "couchdb" Database Server
How to Check the "couchdb" Database Server? The "couchdb" database server supports a REST API. We can use it to look at its data. 1. Find out the REST API port number of the "couchdb" server container: $ docker ps | grep couchdb hyperledger/fabric-couchdb 4369/tcp, 9100/tcp, 0.0.0.0:5984-&gt;598...
2020-03-25, 1053🔥, 0💬

Reinstall Node.js Required Modules
How to reinstall Node.js Required Modules with the new version of npm? After installing the latest version of "node" and "npm" with "nvm", you can reinstall Node.js Required Modules to run Node.js client applications again the WYFA network. 1. Remove all files in "node_modules": $ cp ~/hyperledger-b...
2020-01-04, 1049🔥, 0💬

Hyperledger Fabric Environment on Ubuntu
Where to find tutorials on Hyperledger Fabric Environment on Ubuntu? Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team on Hyperledger Fabric Environment on Ubuntu. Hyperledger Fabric Environment Requirement Install Hyperledger Fabric Prerequisites o...
2020-11-11, 1048🔥, 0💬

BYFN Containers Running on Docker
What BYFN (Build Your First Network) containers are running on Docker Engine? Once your BYFN is deployed and executed on the Docker Engine, there will be 9 containers running on the Docker Engine: $ cd hyperledger-binaries/fabric-sa mples/first-network$ ./byfn.sh up ... $ docker ps IMAGE COMMAND NAM...
2020-11-11, 1047🔥, 0💬

Steps of Setting Up Orderer Peer
What are major steps to Set Up an Orderer Peer on a Hyperledger Fabric network? Here are major steps to Set Up an Orderer Peer (also called Orderer Node) on a Hyperledger Fabric network. Pulling the Hyperledger Fabric orderer images from docker hub. Creating the organization your ordering node belon...
2019-09-04, 1039🔥, 0💬

Organization with CLI Admin Tool
Should I run CLI Admin Tool in my organization on a multi-organization network? Yes, you should run CLI Admin Tool in your organization on a multi-organization network. It provides a nice tool for your administrator to manage ledger peers in your organization. Now we have a Hyperledger Fabric Networ...
2019-10-27, 1035🔥, 0💬

"first-network" - Building Your First Network
What is BYFN (Build Your First Network)? BYFN (Build Your First Network) is a tutorial provided in the Hyperledger Fabric "Samples, Binaries and Docker Images" package provided at http://bit.ly/2ysbOFE . After installing the binary package, the BYFN tutorial is located at ~/hyperledger-binaries/fabr...
2020-05-05, 1034🔥, 0💬

"composer network" - Deploy BNA File
How to deploy and start a business network BNA file to the local Hyperledger Fabric developer environment? You can use the "composer network" command to deploy and start a business network BNA file on the local Hyperledger Fabric developer environment: $ cd tutorial-network $ composer network instal...
2021-02-04, 1025🔥, 0💬

Requirements for Registering New Identities
What are requirements for Registering New Identities? With the Fabric CA Client tool, you can register new identities on the Fabric CA Server, if you meet the following requirements: 1. You, as the registrar, must have an identity in your wallet that has the "hf.Registrar.Roles" attribute with a val...
2019-09-16, 1024🔥, 0💬

Verify Blockchain on the Channel
How to Verify Blockchain on the Channel? Since all transactions (changes of assets managed by chaincodes) are stored in the blockchain shared by all peers of the channel, you can use the "peer channel" CLI command to look at them. 1. Connect to CLI container: $ docker exec -it cli bash root@262918fd...
2020-02-20, 1023🔥, 0💬

What Is Hyperledger Fabric Query
What Is Hyperledger Fabric Query? A Hyperledger Fabric Query is a GET operation provided by a chaincode on a channel on a Hyperledger Fabric network to return the current state of a given asset. In order to perform a query operation, you need to prepare the following: Asset ID - Identifies the Asset...
2020-01-29, 1021🔥, 0💬

"peer chaincode invoke" on BYFN
How to run "peer chaincode invoke" to invoke the transaction on the chaincode instance? After a chaincode in properly installed on all peers and instantiated on the channel, you can run the "peer chaincode invoke" to invoke the transaction on the chaincode instance. 1. Verify instantiated chaincode:...
2020-08-13, 1020🔥, 0💬

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