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What Is Basic Sample Business Network
What is Basic Sample Business Network? Basic Sample Business Network is the "Hello World" of Hyperledger Composer samples, which demonstrates the core functionality of Hyperledger Composer by changing the value of an asset. Basic Sample Business Network supports the following business object types: ...
2020-12-22, ∼1795🔥, 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, ∼1794🔥, 0💬

"composer archive" to Generate BNA File
How to package my business network source code files into a BNA file for deployment? You can use the "composer archive create" command to package my business network source code files into a BNA file for deployment: $ cd tutorial-network $ composer archive create -t dir -n . $ ls -l tutorial-network...
2021-02-04, ∼1789🔥, 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, ∼1787🔥, 0💬

"docker image inspect" - Inspect Image
How to Inspect an Image in the local repository with "docker image inspect" command? You can get more information from an image using the "docker image inspect" command with a given image name or ID: fyicenter$ docker image inspect hello-world [ { "Id": "sha256:fce289e99eb9bca977dae1 36fbe2a82b6b7d4c...
2019-03-31, ∼1785🔥, 0💬

Objectives of WYFA tutorials
What are the objectives of WYFA (Writing Your First Application) tutorials? Objectives of WYFA (Writing Your First Application) tutorials provided at hyperledger-fabric.readthedocs .ioWebsite are: 1. Setting up a development environment. Our application needs a network to interact with, so we’ll get...
2020-03-15, ∼1784🔥, 0💬

Deploy orderer.example.com Manually
How to Deploy orderer.example.com as a Docker container manually? You can follow this tutorial to Deploy orderer.example.com as a Docker container manually. 1. Verify the configuration of the orderer.example.com container defined in the docker-compose.yml file: $ cd ~/hyperledger-binaries/fabric- sam...
2020-03-25, ∼1783🔥, 0💬

"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, ∼1781🔥, 0💬

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, ∼1778🔥, 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, ∼1777🔥, 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, ∼1774🔥, 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, ∼1772🔥, 0💬

Upgrade/Downgrade Python in Conda on nvidia/cuda Docker
How to Upgrade or Downgrade Python in Conda on nvidia/cuda Docker? If you need to run a specific version of Python, you can Upgrade or Downgrade Python Conda on nvidia/cuda Docker as shown in this tutorial. 1. Attach a terminal to the running docker. fyicenter# docker exec -it my_cuda /bin/bash (bas...
2023-02-21, ∼1771🔥, 1💬

"microsoft/windowsservercore" - Windows Base Image
What is the Windows Base Image, "microsoft/windowsservercore"? If you want to build any Docker images for Windows platform, you should take a look at the Windows base image first. 1. Search for Windows related images: C:\fyicenter&gt; docker search windows microsoft/windowsservercore The officia...
2022-12-15, ∼1771🔥, 0💬

"docker exec -it cli bash" - BYFN CLI Shell
How to run "docker exec -it cli bash" command to run a shell script window in the BYFN (Build Your First Network) CLI Docker Container? The BYFN (Build Your First Network) CLI Docker Container is a command line service door to manage your BYFN network. You can run it and connect to it as shell scrip...
2020-10-10, ∼1771🔥, 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, ∼1770🔥, 0💬

"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, ∼1770🔥, 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, ∼1768🔥, 0💬

What Is Blockchain
What Is Blockchain? A blockchain is a growing list of data blocks that are cryptographically chained together. A blockchain has the following main features: A data block has a header and a list of data transactions. Merkle hash tree is used to store a fingerprint of all transactions in the block hea...
2022-03-29, ∼1765🔥, 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, ∼1765🔥, 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, ∼1762🔥, 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, ∼1758🔥, 0💬

Watch Peer Container Log
How to watch the log file of Peer Container Log? You can follow this tutorial to watch the log file of a peer container: 1. Set up a new terminal on the hosting system to follow the log file of the "peer0.org1.example.com" container: $ docker logs --tail 10 -f peer0.org1.example.com [gossip.comm] fu...
2020-07-07, ∼1756🔥, 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, ∼1754🔥, 0💬

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