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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💬

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, 983🔥, 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💬

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, 979🔥, 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, 979🔥, 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, 979🔥, 0💬

"docker container rm" - Remove Container
How to remove a container from the Docker Engine with "docker container rm" command? If a container is no longer needed, you can remove it from the Docker Engine to save space using the "docker container rm" command. 1. Run "docker container list --all" command. You see 2 containers created from the... 2019-04-12, 977🔥, 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, 976🔥, 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, 975🔥, 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, 975🔥, 0💬

"docker container exec" - Execute Command on Running Container
How to Execute an extra Command on a Running Container using the "docker container exec" command? Since Linux system is a multi-tasking system, you can send an extra command to be executed on a running Alpine container. 1. Check the container status to make it is still running. fyicenter$ docker con... 2019-02-17, 975🔥, 0💬

Building Docker Image with "docker build"
Where to find tutorials on Building new Docker Images with "docker build" command? Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team on Building new Docker Images with "docker build" command. What Is "docker build" Command Build "hello" Image from A... 2019-02-11, 974🔥, 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, 973🔥, 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, 972🔥, 0💬

Install Docker CE on Ubuntu Manually
How to install Docker CE (Community Edition) on Ubuntu Manually? You can follow this tutorial to install Docker CE (Community Edition) on Ubuntu manually. 1. Get your Ubuntu codename with "lsb_release" command. fyicenter$ lsb_release -cs bionic 2. Get your system architecture name with "arch" or "un... 2019-04-21, 971🔥, 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, 970🔥, 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, 969🔥, 0💬

"docker container run" - Create Container with New Command
How to Create a new Container with a New Command using the "docker container run" command? If you want to create an Alpine container that starts with a new command different than the default command, you need to use the "docker container run" command with your Linux command specified. 1. Create a ne... 2019-02-06, 969🔥, 0💬

HTML resources?
Hi there, I know you're busy, so I'll keep it short and sweet :) I've just built a nice little tool called 'HTML5 Periodic Table'. It's incredibly useful for any developer using HTML and the great thing is that anyone in your audience can use it anytime they want for absolutely zero cost! Naturally,... 2020-08-25, 968🔥, 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, 968🔥, 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, 966🔥, 0💬

Install Docker CE Using Hyperledger Script
How to install Docker on Ubuntu CE (Community Edition) using the Hyperledger Composer Script? Since Docker is required to run Hyperledger Composer, hyperledger.github.io offers a shell script to install Docker on Ubuntu CE (Community Edition) together with other packages. 1. Download the Hyperledger... 2019-05-30, 965🔥, 0💬

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Blockchain Container EPUB General HTML JSON Microsoft Node.js PHP Python RSS Tools Visual Studio Web