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"PeerAdmin@hlfv1" - Peer Admin Access Card
What is Peer Admin Access Card "PeerAdmin@hlfv1"? "PeerAdmin@hlfv1" is a special Business Network Card that has special permission to deploy new Business Network to the peer node, "peer0.org1.example.com" in your Hyperledger Composer Developer Environment? "PeerAdmin@hlfv1" card can be created with ...
2020-07-14, ∼1502🔥, 0💬

CORE_PEER_* Environment Variables on BYFN CLI
What is the default peer and how to change it on the BYFN CLI container? On the BYFN CLI container, you can manage other peer nodes with the "peer" command. When you run a "peer" command, it will connect to the default peer node define by these environment variables: CORE_PEER_ADDRESS=peer0.org1.e xa...
2020-09-30, ∼1500🔥, 0💬

What Is Ledger Peer Operation RESTful API
What is Ledger Peer Operation RESTful API? Ledger Peer Operation RESTful API is RESTful Web service provided by a ledger peer. It is different than and separated from the primary ledger Web service provided by the ledger peer. Ledger Peer Operation RESTful API exposes the following functionalities: ...
2019-04-11, ∼1499🔥, 0💬

Create Orderer Organization Definition
How to Create Orderer Organization Definition? You can follow this tutorial to Create Orderer Organization Definition. 1. Instead of creating a new MSP entry for the orderer, you can borrow the one created in BYFN tutorials: $ mkdir fabric-orderer $ cd fabric-orderer $ cp -r ~/hyperledger-binaries/f...
2019-09-04, ∼1498🔥, 0💬

Hello-3.2.epub - EPUB 3.2 Simple Demonstration
How to build a simple EPUB file to demonstrate some EPUB 3.2 features? You can follow this tutorial to build a simple EPUB file to demonstrate some EPUB 3.2 features Create 5 required files and place them according to the following structure: ├── mimetype ├── META-INF │   └── container.xml ├─...
2022-02-09, ∼1496🔥, 0💬

Connect to Local Playground Server
How to connect to my local Hyperledger Composer Playground Server? When your local Hyperledger Composer Playground Server is started, it listens to the 8080 port by default. So you can connect to the server with a Web browser on the local system, using the following address: http://localhost:8080 If...
2021-02-17, ∼1496🔥, 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, ∼1491🔥, 0💬

Pull Hyperledger Fabric Orderer Image
How to Pull Hyperledger Fabric Orderer Image from docker hub? You can follow this tutorial to Pull Hyperledger Fabric Orderer Image from docker hub. 1. Check the Docker local repository: $ docker image list | grep fabric-orderer hyperledger/fabric-orderer latest ec4ca236d3d4 2 weeks ago 173MB hyperl...
2019-09-04, ∼1490🔥, 0💬

Hyperledger Composer Script File
What Is Hyperledger Composer Script File (*.js)? A Hyperledger Composer script file is a source code file that define business logics on how each transaction is processed. A script file uses the JavaScript language and the .js file extension. Here is an example of a script file from the Basic Sample...
2020-11-22, ∼1489🔥, 0💬

Reinstall Chaincode on WYFA Network
How to Reinstall Chaincode on the WYFA (Writing Your First Application) network? You can follow these steps to Reinstall Chaincode on the WYFA (Writing Your First Application) network. 1. Try to install "fabcar" chaincode again. You may see an error, if the chaincode is already installed. $ docker e...
2020-02-29, ∼1488🔥, 0💬

Hyperledger Related Terminology
Hyperledger Related Terminology: Asset - An Asset is a data object with a unique identifier. The content of an asset can be anything from a simple numeric value to a complex data object. For example, an asset can represent a financial asset, like a bank account in a bank system. Blockchain - A Block...
2020-01-21, ∼1488🔥, 0💬

View Logs Files of basic-network
How to view logs files of the example network, basic-network? The example network, basic-network, consists of 4 Docker containers. You can view the log file on each container. 1. View log file of the orderer container: $ docker logs orderer.example.com [orderer.common.server] prettyPrintStruct -&...
2020-04-14, ∼1485🔥, 0💬

"composer network" Commands
What can I do with "composer network" command? "composer network" commands are part of the Composer CLI command set. It allows you to manage business networks running in the Hyperledger Composer developer environment. Here is the syntax of the "composer network" commands: $ composer network help Com...
2020-12-26, ∼1483🔥, 0💬

Warning on Incompatible "npm" Version
Why I am getting the Incompatible "npm" Version warning with installating Hyplerledger Composer CLI on Ubuntu? You may get the Incompatible "npm" Version warning, if you install Hyplerledger Composer CLI with the "@0.20" version option: $ sudo npm install -g composer-cli@0.20 WARN engine composer-cl...
2021-04-04, ∼1482🔥, 0💬

Install Docker CE Using Hyperledger Script
How to install Docker on Ubuntu CE (Community Edition) using the Hyperledger Composer Script? Since Docker is required to run Hyperledger Composer, hyperledger.github.io offers a shell script to install Docker on Ubuntu CE (Community Edition) together with other packages. 1. Download the Hyperledger...
2019-05-30, ∼1481🔥, 0💬

Build and Run "Hello" Go Program
How to Build and Run "Hello" Go Program on Ubuntu? Hyperledger Fabric framework is written in Go language. So it is important to learn how build and run Go programs on Ubuntu. Here are the steps to build and run the "Hello" Go program. 1. Make sure that Go is installed. $ go version go version go1.1...
2020-05-15, ∼1478🔥, 0💬

Verify the WYFA Network
How to Verify the Hyperledger Fabric Network to run the WYFA (Writing Your First Application) tutorial? You can follow these steps to verify the Hyperledger Fabric Network to run the WYFA (Writing Your First Application) tutorial. 1. Connect to the CLI container: $ docker exec -it cli bash bash-4.4#...
2020-02-29, ∼1478🔥, 0💬

Deploy cli Container Manually
How to Deploy cli as a Docker container manually? You can follow this tutorial to Deploy cli as a Docker container manually. 1. Verify the configuration of the cli container defined in the docker-compose.yml file: $ cd ~/hyperledger-binaries/fabric- samples/basic-network$ more docker-compose.yml ......
2020-03-15, ∼1476🔥, 0💬

buy.js - Application to Buy Paper
What is the Application to Buy Paper, buy.js? buy.js is a client application using the Hyperledger Fabric Node.js SDK library to invoke the buy() function of the papercontract running on the PaperNet. 1. View buy.js source code: (balaji)$ cd ~/hyperledger-binaries/fabric- samples(balaji)$ cd commerc...
2019-11-08, ∼1475🔥, 0💬

Interfaces to Communicate with Ledger Peer
Where to find tutorials on Interfaces to Communicate with Ledger Peer? Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team on Interfaces to Communicate with Ledger Peer. Main Interfaces to Communicate with Ledger Peer Download and Install Golang SDK D...
2020-01-29, ∼1474🔥, 0💬

issue.js - Application to Issue New Paper
What is the Application to Issue New Pape, issue.js? issue.js is a client application using the Hyperledger Fabric Node.js SDK library to invoke the issue() function of the papercontract running on the PaperNet. 1. View issue.js source code: (isabella)$ cd ~/hyperledger-binaries/fabric- samples(isab...
2019-11-21, ∼1474🔥, 0💬

Business Network Development Concepts
Where to find tutorials on Business Network Development Concepts. Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team on Business Network Development Concepts. Business Network Source Code Architecture Hyperledger Composer Model File Hyperledger Compo...
2022-02-19, ∼1473🔥, 0💬

"concept" CTO Statement Syntax
What is the syntax of the "concept" CTO Statement The "concept" statement declares a generic data type to represent secondary data entities to support primary data entities. Here is the syntax of an "concept" statement: concept type_name [extends super_type] { o|--&gt; property_type property_nam...
2021-06-19, ∼1473🔥, 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, ∼1471🔥, 0💬

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