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"docker container rm" - Remove Container
How to remove a container from the Docker Engine with "docker container rm" command? If a container is no longer needed, you can remove it from the Docker Engine to save space using the "docker container rm" command. 1. Run "docker container list --all" command. You see 2 containers created from the...
2019-04-12, 990🔥, 0💬

Building Docker Image with "docker build"
Where to find tutorials on Building new Docker Images with "docker build" command? Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team on Building new Docker Images with "docker build" command. What Is "docker build" Command Build "hello" Image from A...
2019-02-11, 990🔥, 0💬

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, 987🔥, 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, 986🔥, 0💬

Switch Default Peer on BYFN CLI Container
How to switch the default peer on BYFN CLI Container? I want to join peer0.org2.example.com to the channel. You can follow this tutorial to switch the default peer to peer0.org2.example.com and join it to BYFN "mychannel" channel. 1. Switch the default peer by changing environment variables: bash-4....
2020-09-30, 985🔥, 0💬

"byfn.sh up" - Start Up BYFN Network
How to run "byfn.sh up" to start up the BYFN Network? You can follow this tutorial to run "byfn.sh up" to Start up the BYFN Network. The "./byfn.sh up" command automatically generates the configuration again, deploys/starts all containers to the Docker Engine, and runs a set of chaincode tests. $ cd...
2020-05-05, 985🔥, 0💬

"docker container start --attach" - Attach Console
How to start a container with its console attached to the host console using the "docker container start --attach" command? By default, the "docker command start" command will start a container and run its default command in the background. You will not see anything that is printed its console. If y...
2019-04-30, 984🔥, 0💬

Main Interfaces to Communicate with Ledger Peer
What are Main Interfaces to Communicate with a ledger peer on a hyperledger fabric network? There are 3 Main Interfaces to Communicate with a ledger peer on a hyperledger fabric network. 1. Peer CLI - The Peer CLI is a Command Line Interface (CLI) provided as part of the Hyperledger Fabric distribut...
2020-01-21, 981🔥, 0💬

Hyperledger Fabric Network
Where to find tutorials on Hyperledger Fabric Network? Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team on Hyperledger Fabric Network. Simplest Hyperledger Fabric Network Two-Organization Hyperledger Fabric Network Multiple Ledger Peers within Orga...
2020-02-07, 978🔥, 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, 978🔥, 0💬

Member Peers of a Channel
How to find out which Peers are members of the "mychannel" channel? One way to find out which Peers are members of the "mychannel" channel is to visit each peers and check their joined channel list: 1. Connect to the CLI container: $ docker exec -it cli bash bash-4.4# 2. Check joined channel list on...
2020-05-29, 977🔥, 0💬

Deploy Business Network Archive (BNA) to Playground
How to deploy a Business Network Archive (BNA) file to Hyperledger Composer Playground? If you have an existing Business Network Archive (BNA) file that contains a Hyperledger Composer Business Network application, you can follow this tutorial to deploy it to the Hyperledger Composer Playground. 1. ...
2020-12-15, 976🔥, 0💬

Verify Docker Engine on Ubuntu
How to verify Docker Engine on Ubuntu? Hyperledger Fabric framework runs on Docker Engine. So it is important to verify that Docker Engine is running correctly on your local Ubuntu system. Here are some suggestions on how to verify the Docker Engine. 1. Verify version of the Docker Engine and make s...
2020-05-15, 974🔥, 0💬

"configtxgen" Command - Build *MSPanchors.tx
How to run "configtxgen" command to build a transaction message to define the anchor peer in each organization in BYFN (Build Your First Network)? You can follow this tutorial to run "configtxgen" command to build a transaction message to define the anchor peer in each organization in BYFN. The "con...
2020-10-20, 973🔥, 0💬

Basic Sample Business Network - Home Page
What is on the Basic Sample Business Network home page? You can follow this tutorial to see what's on the Basic Sample Business Network home page. 1. Run Web browser and go to: composer-playground.mybluemix. net. 2. Click on "Let's Blockchain!" to skip the welcome page. 3. Click "Get Started -&g...
2020-12-22, 968🔥, 0💬

Install Node.js Application Dependencies
What is Install Node.js Application Dependencies? Since the applications are written with Hyperledger Fabric Node.js SDK Isabella needs to install some dependencies, which are listed in the package.json file. (isabella)$ cd ~/hyperledger-binaries/fabric- samples(isabella)$ cd commercial-paper/organi...
2019-12-02, 968🔥, 0💬

Change Data with "mysql.connector"
How to make data changes to MySQL database with "mysql.connector" module? Making data changes to MySQL database with "mysql.connector" requires to run INSERT, UPDATE or DELETE SQL statements with an established connection. By default, changes are not committed until you call the con.commit() method ...
2021-09-09, 967🔥, 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, 967🔥, 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, 966🔥, 0💬

BYFN CLI "peer" Command Prefix
How to use BYFN CLI "peer" Command Prefix? By default, when you run the "peer" command on the BYFN CLI container, it will be executed again the default peer node specified by 4 environment variables: CORE_PEER_MSPCONFIGPATH=/opt/g opath/.../org1.example.com/use rs/Admin@org1.example.com/mspCORE_PEER_...
2020-09-15, 965🔥, 0💬

Clean Up Docker Engine for WYFA
How to Clean Up Docker Engine to run the WYFA (Writing Your First Application) tutorial? You can follow these steps to setup the Clean Up Docker Engine to run the WYFA (Writing Your First Application) tutorial. 1. Stop existing Hyperledger Fabric Networks on your local host by stopping all Docker co...
2020-02-29, 964🔥, 0💬

"docker container ..." - Manage Containers
How to manage containers with "docker container ..." commands? A Docker container is a deployed instance of an application that runs on the Docker Engine in an encapsulated environment. You can use "docker container" commands to manage Docker containers. Here is a list of sub-commands supported by t...
2019-06-02, 964🔥, 0💬

Deploy ca.example.com Manually
How to Deploy ca.example.com as a Docker container manually? You can follow this tutorial to Deploy ca.example.com as a Docker container manually. 1. Verify the configuration of the ca.example.com container defined in the docker-compose.yml file: $ cd ~/hyperledger-binaries/fabric- samples/basic-netw...
2020-03-25, 961🔥, 0💬

What Is Hyperledger Composer Playground
What Is Hyperledger Composer Playground? Hyperledger Composer Playground is a Web browser based tool that allows you to build and test your hyperledger application quickly. Hyperledger Composer Playground is part of the Hyperledger Composer tool set, which is designed to help you to build and test a...
2021-12-28, 960🔥, 0💬

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