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Start basic-network for PaperNet
How to Start basic-network for PaperNet? I want to follow commercial-paper Tutorials. You can follow this tutorial to start basic-network and make it ready to build PaperNet. 1. Start basic-network : $ cd ~/hyperledger-binaries/fabric- samples/basic-network$ ./start.sh ... Creating ca.example.com .....
2019-12-19, 995🔥, 0💬

docker-compose-orderer.yaml - Docker Configuration
What is the Docker Compose configuration file for an Orderer peer? The Docker Compose configuration file, docker-compose-orderer.yaml, provides settings on how to run the orderer peer on the Docker engine. Here is a sample of docker-compose-orderer.yaml for a single orderer peer: $ cd fabric-orderer...
2019-08-23, 995🔥, 0💬

Impact of Stopping Chaincode Container
What is the impact of stopping a chaincode container of a peer? We know that if a Peer has chaincode installed, it will run it as chaincode container to help the channel to perform a transaction on the chaincode. If you stop a chaincode container of a peer who is not a required member of the chainco...
2019-04-17, 995🔥, 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, 992🔥, 0💬

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, 992🔥, 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, 986🔥, 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, 985🔥, 0💬

Introduction to Hyperledger
Where to find tutorials as Introduction to Hyperledger. Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team as Introduction to Hyperledger. What Is Hyperledger What Is Blockchain What Is Distributed Ledger What Is Smart Contract   ⇒ What Is Hyperledge...
2019-04-19, 985🔥, 0💬

See New Paper on CouchDB Server
How to See New Paper on CouchDB server? If you are the PaperNet admin, you may want to see the world state of the asset managed by papercontract. PaperNet uses CouchDB to store the world state and configured with a REST API on port 5984. 1. List all databases: (magnetocorp admin)$ curl http://localh...
2019-11-21, 984🔥, 0💬

Verify World State in CouchDB
How to Verify World State in CouchDB container? Since peer0.org1.example.com uses the couchdb container to store the world state, you can check the current states of all assets managed by the chaincode. 1. Get database name for the chaincode "fabcar": $ curl http://localhost:5984/_all_dbs ["_replica...
2020-02-20, 983🔥, 0💬

Install Composer Prerequisites on Ubuntu
How to install Hyplerledger Composer Prerequisites on Ubuntu? The best way to install Hyplerledger Composer Prerequisites on Ubuntu is to download and run the prereqs-ubuntu.sh script. 1. Verify your Ubuntu version: $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: U...
2021-05-04, 982🔥, 0💬

Instantiate PaperNet Chaincode (Smart Contract)
How to Instantiate the PaperNet Chaincode (Smart Contract), papercontract.js? Now that papercontract chaincode containing the CommercialPaper chaincode is installed on the required PaperNet peers, you, as administrator, can make it available to different network channels, so that it can be invoked b...
2019-12-02, 982🔥, 0💬

Fabric CA Client Wallet
Where is the Fabric CA Client Wallet that stores identities and certificates used to access the Fabric CA Server? The Fabric CA Client Wallet is stored in the "msp" sub-directory in the $FABRIC_CA_CLIENT_HOME directory or the default location of $HOME/.fabric-ca-client. The Fabric CA Client Wallet h...
2019-09-27, 981🔥, 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, 980🔥, 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, 980🔥, 0💬

Upgrade Chaincode Instance on BYFN
How to upgrade chaincode instance on BYFN? You can follow this tutorial to upgrade the chaincode instance on BYFN. You can use this process to fix any issues with chaincode instance without destroy its data. 1. Install new version, 2.0, of the chaincode on the default peer, peer0.org1. bash-4.4# ech...
2020-09-12, 978🔥, 1💬

Requirements for Fabric CA Server and Client
What are the requirements to install and run Fabric CA Server and Client? Fabric CA Server and Client are written in Golang, so you need to stall Go environment and required libraries: Go 1.10+ installation GOPATH environment variable is set correctly libtool and libtdhl-dev packages are installed 1...
2019-10-18, 978🔥, 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, 975🔥, 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, 973🔥, 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, 973🔥, 0💬

BYFN Chaincode Docker Container
What is the BYFN chaincode Docker container? The BYFN chaincode Docker container represents the running instance of the "mycc" chaincode. When "mycc" chaincode is instantiated from peer0.org1, a chaincode Docker container (shim) is deployed and started on the Docker engine. You can find chaincode co...
2020-09-15, 971🔥, 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, 969🔥, 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, 967🔥, 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, 965🔥, 0💬

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