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"docker container run" - Create and Run Container
How to create a new container and run the default command from an image with "docker container run" command? If you want to create a new container from an image, and start the container with the default command in one step, you can use the "docker container run" command. Here is a list of options su...
2019-03-25, ∼2026🔥, 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, ∼2024🔥, 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, ∼2024🔥, 0💬

"docker image inspect" - Inspect Image
How to Inspect an Image in the local repository with "docker image inspect" command? You can get more information from an image using the "docker image inspect" command with a given image name or ID: fyicenter$ docker image inspect hello-world [ { "Id": "sha256:fce289e99eb9bca977dae1 36fbe2a82b6b7d4c...
2019-03-31, ∼2024🔥, 0💬

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, ∼2023🔥, 0💬

"python" - Python Docker Image
What is the Python Docker Image, "python"? I wan to use it build a Python application. The Python Docker Image, "python", is the official Docker image that provides you a Python development environment. You pull and try it. 1. Search for the "python" image. fyicenter$ docker search python NAME DESCR...
2019-02-04, ∼2023🔥, 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, ∼2021🔥, 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, ∼2021🔥, 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, ∼2020🔥, 0💬

Setup Node.js for WYFA Tests
How to Setup Node.js for WYFA (Write Your First Application) Tests? Before performing any Node.js SDK tests on the WYFA network, you need to setup the Node.js on your local host. 1. Make sure Node.js is installed: $ node --version v8.10.0 2. Install required packages: $ cd hyperledger-binaries/fabri...
2020-02-07, ∼2018🔥, 0💬

Reinstall Node.js Required Modules
How to reinstall Node.js Required Modules with the new version of npm? After installing the latest version of "node" and "npm" with "nvm", you can reinstall Node.js Required Modules to run Node.js client applications again the WYFA network. 1. Remove all files in "node_modules": $ cp ~/hyperledger-b...
2020-01-04, ∼2018🔥, 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, ∼2017🔥, 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, ∼2012🔥, 1💬

evaluate-transaction.js - Evaluate Chaincode Transaction
How to write a Node.js script to evaluate a transaction defined in the Invoke method of a chaincode? Here is sample Node.js script, evaluate-transaction.js, that uses a given user identity from the local wallet to evaluate a transaction on chaincode. /* Copyright (c) FYIcenter.com */ 'use strict'; c...
2019-04-22, ∼2012🔥, 0💬

Auto-Start of Required Chaincode Container
Why a chaincode container is automatically started? A chaincode container will be automatically started, if a chaincode is invoked and the chaincode container's peer is a required peer for the chaincode. Let's continue with the previous tutorial to see this behavior. 6. Stop the chaincode container ...
2020-07-03, ∼2007🔥, 2💬

💬 2020-07-03 chelseaclark: Creative Bioarray provides a rapid, high-throughput slide scanning service for different kinds of application. The whole slide s...

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, ∼2006🔥, 0💬

Watch Chaincode Container Log
How to watch the log file of chaincode Container Log? You can follow this tutorial to watch the log file of a chaincode container: 1. Set up new terminal on the hosting system to follow the log file of the chaincode container linked to "peer0.org1": $ docker ps --all | grep dev-peer0.org1 cc7aeb60bb...
2020-06-08, ∼2005🔥, 0💬

Launch the WYFA Network
How to Launch the Hyperledger Fabric Network to run the WYFA (Writing Your First Application) tutorial? You can follow these steps to Launch the Hyperledger Fabric Network to run the WYFA (Writing Your First Application) tutorial. 1. Run the startFabric.sh script to spin up a blockchain network, cre...
2020-02-29, ∼2005🔥, 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, ∼2004🔥, 0💬

"configtxgen" Command - Build channel.tx
How to run "configtxgen" command to build a transaction message to create the channel in BYFN (Build Your First Network)? You can follow this tutorial to run "configtxgen" command to build a transaction message to create the channel in BYFN. The "configtxgen" command file is located in the ../bin di...
2020-10-20, ∼2002🔥, 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, ∼2001🔥, 0💬

Join Peer to BYFN Network Channel
How to join the default peer to a BYFN network Channel? You can follow this tutorial to join the default peer to a BYFN network Channel. In last tutorial, we have created a transaction file, channel.tx, that contains a transaction message to create a channel called "mychannel" on the BYFN network. N...
2020-09-30, ∼1998🔥, 0💬

"microsoft/windowsservercore" - Windows Base Image
What is the Windows Base Image, "microsoft/windowsservercore"? If you want to build any Docker images for Windows platform, you should take a look at the Windows base image first. 1. Search for Windows related images: C:\fyicenter&gt; docker search windows microsoft/windowsservercore The officia...
2022-12-15, ∼1995🔥, 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, ∼1994🔥, 0💬

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