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Reinstall basic-network with Latest Images
How to Reinstall basic-network with Latest Images? You follow this tutorial to Reinstall basic-network with Latest Images. 1. Run teardown.sh script to remove containers and their images related to the basic-network: $ cd ~/hyperledger-binaries/fabric- samples/basic-network$ ./teardown.sh Removing p...
2020-04-14, 268👍, 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, 340👍, 0💬

Download Blocks from Blockchain
How to download blocks from the blockchain on the peer? You can follow this tutorial to download blocks from the blockchain on the peer. 1. Connect to the peer container and setup membership variables: $ docker exec -it peer0.org1.example.com bash root@aedfd08717a5:/opt/gopath/ src/github.com/hyperle...
2020-03-25, 306👍, 0💬

Deploy orderer.example.com Manually
How to Deploy orderer.example.com as a Docker container manually? You can follow this tutorial to Deploy orderer.example.com as a Docker container manually. 1. Verify the configuration of the orderer.example.com container defined in the docker-compose.yml file: $ cd ~/hyperledger-binaries/fabric- sam...
2020-03-25, 288👍, 0💬

Deploy ca.example.com Manually
How to Deploy ca.example.com as a Docker container manually? You can follow this tutorial to Deploy ca.example.com as a Docker container manually. 1. Verify the configuration of the ca.example.com container defined in the docker-compose.yml file: $ cd ~/hyperledger-binaries/fabric- samples/basic-netw...
2020-03-25, 287👍, 0💬

Deploy peer0.org1.example.com Manually
How to Deploy peer0.org1.example.com as a Docker container manually? You can follow this tutorial to Deploy peer0.org1.example.com as a Docker container manually. 1. Verify the configuration of the peer0.org1.example.com container defined in the docker-compose.yml file: $ cd ~/hyperledger-binaries/f...
2020-03-25, 273👍, 0💬

Manage basic-network with cli Container
How to Manage basic-network with cli Container? You can follow this tutorial to Manage basic-network with cli Container. 1. Start all containers, including cli, defined in the docker-compose.yml file: $ cd ~/hyperledger-binaries/fabric- samples/basic-network$ docker-compose -f docker-compose.yml up ...
2020-03-15, 479👍, 0💬

WYFA (Writing Your First Application)
Where to find tutorials on WYFA (Writing Your First Application) Network? I need help to follow the document provided at hyperledger-fabric.readthedocs .ioWebsite. Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team on WYFA (Writing Your First Applica...
2020-03-15, 362👍, 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, 326👍, 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, 302👍, 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...
2020-03-15, 281👍, 0💬

"fabric-nodeenv:latest not found" Error
How to resolve the "hyperledger/fabric-nodeenv:la testnot found" error? Based on discussions on the Internet, there is a something wrong in the Docker image repository for "hyperledger/fabric-nodeenv:la test"image. When you try to instantiate chaincode a Hyplerledger Fabric network channel, a docker...
2020-02-29, 391👍, 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, 379👍, 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, 366👍, 0💬

Clean Up Docker Engine for WYFA
How to Clean Up Docker Engine to run the WYFA (Writing Your First Application) tutorial? You can follow these steps to setup the Clean Up Docker Engine to run the WYFA (Writing Your First Application) tutorial. 1. Stop existing Hyperledger Fabric Networks on your local host by stopping all Docker co...
2020-02-29, 363👍, 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, 336👍, 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, 448👍, 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, 336👍, 0💬

Interact with "fabcar" Chaincode on CLI
How to Interact "fabcar" Chaincode on CLI? After you started the WYFA network properly, you will have the "fabcar" chaincode runing on "mychannel" on the peer0.org1.example.com peer container. You can now interact with the "fabcar" chaincode from the CLI container as shown below. 1. Connect to CLI c...
2020-02-20, 329👍, 0💬

Read Block Data in Blockchain
How to Read Block Data from a Blockchain? The block data from a blockchain uses a binary format. You need to use the "configtxgen -inspectBlock" command parse it to JSON format. 1. Get the newest block from the blockchain: $ docker exec -it cli bash root@262918fdcbc0:/opt/gopath/ src/github.com/hyper...
2020-02-20, 318👍, 0💬

fabcar.go - The "fabcar" Chaincode
What is the fabcar.go source code file? File fabcar.go contains the source code the "fabcar" chaincode (or Smart Contract). A copy of fabcar.go file is available is the /opt/gopath/src directory on the "cli" container. You can open and read it. 1. Copy fabcar.go from cli container: $ docker cp cli:/...
2020-02-20, 318👍, 0💬

Node.js SDK and Client Application
What is Node.js SDK and how to use it to write client applications? Hyperledger Fabric Node.js SDK is a set of libraries that allows you to write client applications to interact with chaincode in Node.js language. A Hyperledger Fabric network can be viewed as virtual operating system. Once it is up ...
2020-02-07, 463👍, 0💬

blockfile_000000 - Blockfiles of Blockchain
What is blockfile_000000 Blockfiles of Blockchain? Blocks of a blockchain are stored in physical files. Since they are very static once created, there is no need to store them in database. Hyperledger Fabric combines multiple blocks into a single blockfile, and stores it in the /var/hyperledger/prod...
2020-02-07, 435👍, 0💬

Simplest Hyperledger Fabric Network
What is the simplest Hyperledger Fabric Network? The simplest Hyperledger Fabric Network consists of 2 systems, an orderer and a peer, running 1 channel with 1 chaincode. But ledger (Blockchain and World State) is not distributed. To improve reliability, we can add a second ledger peer to the networ...
2020-02-07, 413👍, 0💬

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