<< < 2 3 4 5 6 7 8 9 10 11 12 > >>   ∑:267  Sort:Date

"configtx.yaml" Environment Configuration File
What is the "configtx.yaml" Environment Configuration File? "configtx.yaml" is a Configuration File used to control the Hyplerledger Composer development environment. It is located in the "composer" sub-directory: $ cd fabric-dev-servers/fabric-scri pts/hlfv12/composer$ ls -l -rw-r--r-- 1 fyicenter ...
2020-07-22, ∼1587🔥, 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, ∼1581🔥, 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, ∼1581🔥, 0💬

Verify Blockchain on the Channel
How to Verify Blockchain on the Channel? Since all transactions (changes of assets managed by chaincodes) are stored in the blockchain shared by all peers of the channel, you can use the "peer channel" CLI command to look at them. 1. Connect to CLI container: $ docker exec -it cli bash root@262918fd...
2020-02-20, ∼1579🔥, 0💬

Turn on Orderer Peer Operation RESTful API
How to Turn on Orderer Peer Operation RESTful API? You can follow this tutorial to Turn on Orderer Peer Operation RESTful API. 1. Update Docker Compose YAML file, docker-compose-default.yaml to override the "operations" settings: $ cd fabric-orderer $ vi docker-compose-default.yaml # Copyright (c) F...
2019-05-14, ∼1579🔥, 0💬

Deploy cli Container Manually
How to Deploy cli as a Docker container manually? You can follow this tutorial to Deploy cli as a Docker container manually. 1. Verify the configuration of the cli container defined in the docker-compose.yml file: $ cd ~/hyperledger-binaries/fabric- samples/basic-network$ more docker-compose.yml ......
2020-03-15, ∼1577🔥, 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, ∼1576🔥, 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, ∼1576🔥, 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, ∼1574🔥, 0💬

Hyperledger Composer Script File
What Is Hyperledger Composer Script File (*.js)? A Hyperledger Composer script file is a source code file that define business logics on how each transaction is processed. A script file uses the JavaScript language and the .js file extension. Here is an example of a script file from the Basic Sample...
2020-11-22, ∼1574🔥, 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, ∼1563🔥, 0💬

"composer network" Commands
What can I do with "composer network" command? "composer network" commands are part of the Composer CLI command set. It allows you to manage business networks running in the Hyperledger Composer developer environment. Here is the syntax of the "composer network" commands: $ composer network help Com...
2020-12-26, ∼1561🔥, 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, ∼1561🔥, 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, ∼1561🔥, 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, ∼1558🔥, 0💬

Orderer Peer Operation RESTful API
What is Orderer Peer Operation RESTful API? The Orderer Peer Operation RESTful API is RESTful Web service provided by an orderer peer. It is different than and separated from the primary orderer Web service provided by the orderer peer. orderer Peer Operation RESTful API exposes the following functi...
2019-05-14, ∼1558🔥, 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, ∼1556🔥, 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, ∼1554🔥, 0💬

Create Orderer Organization Definition
How to Create Orderer Organization Definition? You can follow this tutorial to Create Orderer Organization Definition. 1. Instead of creating a new MSP entry for the orderer, you can borrow the one created in BYFN tutorials: $ mkdir fabric-orderer $ cd fabric-orderer $ cp -r ~/hyperledger-binaries/f...
2019-09-04, ∼1554🔥, 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, ∼1553🔥, 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, ∼1552🔥, 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, ∼1551🔥, 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, ∼1548🔥, 0💬

Requirements for Registering New Identities
What are requirements for Registering New Identities? With the Fabric CA Client tool, you can register new identities on the Fabric CA Server, if you meet the following requirements: 1. You, as the registrar, must have an identity in your wallet that has the "hf.Registrar.Roles" attribute with a val...
2019-09-16, ∼1544🔥, 0💬

<< < 2 3 4 5 6 7 8 9 10 11 12 > >>   ∑:267  Sort:Date