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Default orderer.yaml in Orderer Docker Image
What is the Default orderer.yaml file in Orderer Docker Image? The default orderer.yaml file in the Orderer Docker Image is the default version of orderer.yaml, which provides settings to control the behavior of the Orderer peer. If you deploy the Orderer Docker container without your own version of...
2019-08-23, ∼2097🔥, 0💬

teardown.sh - Teardown basic-network
How to run teardown.sh script to Teardown the Hyperledger Fabric example network, basic-network? You can follow this tutorial to run teardown.sh script to Teardown the Hyperledger Fabric example network, basic-network. 1. Run teardown.sh script to remove containers and their images related to the ba...
2020-04-25, ∼2096🔥, 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, ∼2090🔥, 0💬

Hyperledger Composer Components
What components are included in Hyperledger Composer? Here are major components included in Hyperledger Composer: Composer Runtime - Runs on top of the Hyperledger Fabric framework to run ledger applications called business networks. Composer Playground - Runs in a Web browser providing a Hyperledge...
2021-12-28, ∼2087🔥, 0💬

Switch Default Peer with Scripts
How to Switch Default Peer on the CLI container with Scripts? I am tired of typing those 4 CORE_PEER_* export commands. From previous tutorial, we know that we need to type in export commands to set 4 CORE_PEER_* environment variables. But you can also put them into shell scripts and run them whenev...
2020-05-29, ∼2087🔥, 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, ∼2078🔥, 0💬

Hyperledger Fabric Docker Containers
Where to find tutorials on Hyperledger Fabric Docker Containers? Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team on Hyperledger Fabric Hyperledger Fabric Docker Containers. Types of Hyperledger Fabric Docker Containers Watch "orderer" Container Lo...
2020-07-07, ∼2073🔥, 2💬

Uninstall Chaincode on BYFN Peers
How to uninstall chaincodes on BYFN Peers? Unfortunately, the BYFN CLI "peer chaincode" command does offer any option to uninstall chaincodes from a given peer. You have two options when your chaincodes from different peers are out of sync or incompatible: 1. Destroy chaincode instance and re-instal...
2020-09-15, ∼2070🔥, 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, ∼2062🔥, 0💬

Create PaperNet Log Console
How to Create PaperNet Log Console using the "logspout" command? If you are the administrator from MagnetoCorp and want to Create Log Console to monitor PaperNet Hyperledger Fabric network, you can follow this tutorial. 1. Create a new terminal window and run the monitordocker.sh script under the ma...
2019-12-19, ∼2061🔥, 0💬

Peer Node Log File Location
Where are Peer Node Log Files located? Log files of the Hyperledger Composer peer node in the Docker container that runs the peer node. You can use these commands find peer node log files: 1. Find the container id of the peer node: $ docker ps | grep peer 6bc4e52f82d0 hyperledger/fabric-peer:x86_64 -...
2020-12-02, ∼2050🔥, 0💬

Create Peer Admin Access Card
How to Create Peer Admin Access Card for my Hyperledger Fabric developer environment? Create Peer Admin Access Card is needed to deploy new Composer business network BNA file to the Hyperledger Fabric developer environment. You can follow these steps to a Create Peer Admin Access Card. 1. Create a n...
2020-12-26, ∼2047🔥, 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, ∼2047🔥, 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, ∼2039🔥, 0💬

Install Demo Business Networks in Playground
How to install other Business Network demo in Hyperledger Composer Playground? Hyperledger Composer offers many other demo Business Networks. You can follow this tutorial to install any of them in Hyperledger Composer Playground. 1. Open Hyperledger Composer Playground. You see a list of Business Ne...
2020-12-15, ∼2039🔥, 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, ∼2039🔥, 0💬

Remove Older Versions Chaincode Containers
How to Remove Older Versions Chaincode Containers after the chaincode instance is upgraded? After a chaincode instance is upgraded, chaincode containers of the old version are still running on the Docker Engine. You can follow this tutorial to remove them. 1. List all chaincode containers: $ docker ...
2020-08-13, ∼2038🔥, 0💬

papercontract.js - PaperNet Chaincode (Smart Contract)
What is the PaperNet Chaincode (Smart Contract), papercontract.js? papercontract.js is the chaincode (or smart contract) for the PaperNet written in Node.js language. 1. View papercontract.js source code: (magnetocorp admin)$ cd ~/hyperledger-binaries/fabric- samples(magnetocorp admin)$ cd commercia...
2019-12-02, ∼2036🔥, 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, ∼2035🔥, 0💬

CTO Language Statements
What are Business Network Model CTO Language Statements? Business Network Model CTO language supports 8 types of statements. namespace - The "namespace" statement declares a namespace as the prefix for all data types defined in this CTO file. The "namespace" statement has the same syntax as the "nam...
2021-08-04, ∼2034🔥, 1💬

Introduction of Hyperledger Composer
Where to find tutorials on Introduction of Hyperledger Composer. Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team on Introduction of Hyperledger Composer. Hyperledger Composer Components Hyperledger Composer Runtime   ⇒ Hyperledger Composer Co...
2021-12-28, ∼2032🔥, 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, ∼2031🔥, 0💬

Deploy couchdb Container Manually
How to Deploy couchdb as a Docker container manually? You can follow this tutorial to Deploy couchdb as a Docker container manually. 1. Verify the configuration of the couchdb container defined in the docker-compose.yml file: $ cd ~/hyperledger-binaries/fabric- samples/basic-network$ more docker-com...
2020-07-03, ∼2030🔥, 1💬

Fabric Network without CA Server
Can I run a Hyperledger Fabric Network without Fabric CA Server? Yes, you can run a Hyperledger Fabric Network without Fabric CA Server. In that case, you have to manage PKI certificate services manually For example, you need to do the following manually to add a new user to access your ledger peer:...
2019-10-18, ∼2029🔥, 0💬

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