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Hyperledger Composer Model File
What Is Hyperledger Composer Model File (*.cto)? A Hyperledger Composer model file is a source code file that define business object types used in a business network: Participants, Assets, Transactions and Events. A model file uses the CTO modeling language and the .cto file extension. Here is an ex...
2020-11-22, ∼1883🔥, 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, ∼1883🔥, 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, ∼1880🔥, 0💬

Business Network CTO Modeling Language
Where to find tutorials on Business Network CTO Modeling Language. Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team on Business Network CTO Modeling Language. What Is CTO Modeling Language CTO Language Statements "participant" CTO Statement Syntax ...
2022-02-19, ∼1877🔥, 0💬

Check "couchdb" Database Server
How to Check the "couchdb" Database Server? The "couchdb" database server supports a REST API. We can use it to look at its data. 1. Find out the REST API port number of the "couchdb" server container: $ docker ps | grep couchdb hyperledger/fabric-couchdb 4369/tcp, 9100/tcp, 0.0.0.0:5984-&gt;598...
2020-03-25, ∼1875🔥, 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, ∼1875🔥, 0💬

Invoke Operation on Chaincode Container
Which chaincode container runs the chaincode invoke operation? The chaincode "mycc" instance is configured in the BYFN (Build Your First Network) to run in both chaincode containers when one of their peers receives the "Invoke" call. 1. Set up a terminal on the hosting system to follow the log file ...
2020-06-08, ∼1873🔥, 0💬

Steps of Setting Up Ledger Peer
What are major steps to Set Up an Ledger Peer on a Hyperledger Fabric network? Here are major steps to Set Up an Ledger Peer (also called Peer Node) on a Hyperledger Fabric network. Pulling the Hyperledger Fabric peer images from docker hub. Creating the organization your peer node belongs to. Confi...
2019-05-14, ∼1870🔥, 0💬

Contents of Hyperledger Fabric Binary Package
What contents are included in the Hyperledger Fabric Binary Package? Here is the directory list of the Hyperledger Fabric Binary Package: $ cd ~/hyperledger-binaries/fabric- samples$ ls -l -rw-rw-r-- 1 fyicenter 597 Apr 1 23:01 CODE_OF_CONDUCT.md -rw-rw-r-- 1 fyicenter 961 Apr 1 23:01 CONTRIBUTING.m...
2020-01-21, ∼1866🔥, 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, ∼1864🔥, 0💬

Query Chaincode Property on BYFN Channel
How to Query Chaincode Property on BYFN Channel? An instance of a chaincode can be viewed as an object of a class in an execution environment. It can hold properties. You can run the "peer chaincode query" command to query the current value of a given property of a given chaincode instance. 1. Verif...
2020-09-30, ∼1861🔥, 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, ∼1857🔥, 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, ∼1842🔥, 0💬

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, ∼1839🔥, 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, ∼1838🔥, 0💬

Hyperledger Composer Log Files
Where to find tutorials on Hyperledger Composer Log Files. Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team on Hyperledger Composer Log Files. Hyperledger Composer Log File Location Peer Node Log File Location Peer Log Messages - Start Environment ...
2020-12-02, ∼1837🔥, 0💬

BYFN configtx.yaml Configuration File
What is the configtx.yaml Configuration File used in BYFN (Build Your First Network)? The configtx.yaml Configuration File provides settings on how the BYFN network should be created. Here is the default copy of crypto-config.yaml provided in BYFN: # Copyright IBM Corp. All Rights Reserved. --- ####...
2020-10-26, ∼1837🔥, 0💬

Blockchain Data Files on Peer Container
Where is the location of Blockchain Data Files on a Peer Container? We known that each peer container needs to maintain a copy of the ledger data for each channel it joined. Ledger data is divided into 2 parts: World State and Blockchain. The World State data is stored in a database, like Go LevelDB...
2020-05-29, ∼1836🔥, 0💬

"participant" CTO Statement Syntax
What is the syntax of the "participant" CTO Statement The "participant" CTO statement declares a participant data type to represent someone who can interact with the business network under access control rules. Here is the syntax of a "participant" statement: [abstract] participant type_name [identi...
2021-08-01, ∼1834🔥, 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, ∼1834🔥, 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, ∼1833🔥, 0💬

Start CLI Container for DigiBank Admin
How to Start CLI Container for the DigiBank Administrator? If you are the administrator from DigiBank and want to manage the PaperNet Hyperledger Fabric network, you can follow this tutorial. 1. Create a new terminal window and run the docker-compose command to start the CLI container: (digibank adm...
2019-11-21, ∼1833🔥, 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, ∼1831🔥, 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, ∼1831🔥, 0💬

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