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Hyperledger Composer Playground
Where to find tutorials on Hyperledger Composer Playground. Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team on Hyperledger Composer Playground. What Is Hyperledger Composer Playground Start Hyperledger Composer Playground What Is Basic Sample Busi...
2019-04-13, 422👍, 0💬

Container Network - "net_basic"
What is the Container Network - "net_basic"? "net_basic" is a Docker container network consists of all containers related to Hyperledger Fabric network, basic-network. A container network groups containers together to help network communications among those containers. You can verify the "net_basic"...
2020-04-14, 420👍, 0💬

Uninstall Chaincode on BYFN Peers
How to uninstall chaincodes on BYFN Peers? Unfortunately, the BYFN CLI "peer chaincode" command does offer any option to uninstall chaincodes from a given peer. You have two options when your chaincodes from different peers are out of sync or incompatible: 1. Destroy chaincode instance and re-instal...
2020-09-15, 418👍, 0💬

"peer chaincode invoke" on BYFN
How to run "peer chaincode invoke" to invoke the transaction on the chaincode instance? After a chaincode in properly installed on all peers and instantiated on the channel, you can run the "peer chaincode invoke" to invoke the transaction on the chaincode instance. 1. Verify instantiated chaincode:...
2020-08-13, 418👍, 0💬

Insatll Fabric CA Server and Client
How to install Fabric CA Server and Client binaries? You can follow this tutorial to install Fabric CA Server and Client binaries. 1. Install both the fabric-ca-server and fabric-ca-client binaries in $GOPATH/bin. $ go get -u github.com/hyperledger/fabric- ca/cmd/...$ cd $GOPATH $ ls -l ./bin -rwxrw...
2019-10-18, 418👍, 0💬

Build the BYFN Network Manually
How to build the BYFN (Build Your First Network) manually? You build the BYFN network automatically with the "./byfn.sh up" script command. But if you want to learn how to build it manually, you need to complete the following steps: 1. Review and revise crypto-config.yaml configuration file, which c...
2020-10-26, 417👍, 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, 417👍, 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, 416👍, 0💬

View Channel Blockchain and Download Blocks
How to View Blockchain and Download Blocks of a Hyperledger Fabric Channel? You can follow this tutorial to View Blockchain and Download Blocks of a Hyperledger Fabric Channel. 1. Connect to the CLI container of the Hyperledger Fabric network: $ docker exec -it cli bash bash-4.4# 2. List channels jo...
2020-08-13, 415👍, 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, 415👍, 0💬

"cryptogen" Command - Generate Keys and Certificates
How to run "cryptogen" command to generate private keys and public certificates to support organizations and users needed for BYFN (Build Your First Network)? You can follow this tutorial to run "cryptogen" command to generate private keys and public certificates to support organizations and users n...
2020-10-26, 414👍, 0💬

Peer and CouchDB Container Dependency
Which Peer container depends which CouchDB container in BYFN network? If you are running BYFN (Build Your First Network) with the CouchDB option, the Peer and CouchDB Container Dependency is defined in the "docker-compose-couch.yaml" file. $ cd ~/hyperledger-binaries/fabric- samples/first-network$ m...
2020-07-03, 414👍, 1💬

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Inspect Transaction Blocks of Channel Blockchain
How to Inspect Transaction Blocks of Channel Blockchain? You can follow this tutorial to Inspect Transaction Blocks of Channel Blockchain. 1. Connect to the CLI container of the Hyperledger Fabric network: $ docker exec -it cli bash bash-4.4# 2. Download (fetch) the newest block from "mychannel" cha...
2020-08-13, 413👍, 0💬

"configtxgen" Command - Build genesis.block
How to run "configtxgen" command to build the orderer genesis block for BYFN (Build Your First Network)? You can follow this tutorial to run "configtxgen" command to build Orderer Genesis Block for BYFN. The "configtxgen" command file is located in the ../bin directory. It takes the configtx.yaml fi...
2020-10-20, 412👍, 0💬

"docker container exec --tty --interactive" - Attach to Container
How to attach console to a Running Container using the "docker container exec" command? I want to get a shell TTY terminal on the container. To attach a TTY terminal console to a Running Container, you can execute the /bin/sh command on the container with "--tty and "--interactive" options. 1. Check...
2018-12-28, 412👍, 0💬

Hyperledger Fabric Process Flow
Where to find tutorials on Hyperledger Fabric Process Flow? Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team on Hyperledger Fabric Process Flow. What Is Hyperledger Fabric Query   ⇒ What Is Hyperledger Fabric Query ⇐ Organization with CLI Admin To...
2020-01-29, 411👍, 0💬

BYFN Containers Running on Docker
What BYFN (Build Your First Network) containers are running on Docker Engine? Once your BYFN is deployed and executed on the Docker Engine, there will be 9 containers running on the Docker Engine: $ cd hyperledger-binaries/fabric-sa mples/first-network$ ./byfn.sh up ... $ docker ps IMAGE COMMAND NAM...
2020-11-11, 410👍, 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, 408👍, 0💬

View Logs Files of basic-network
How to view logs files of the example network, basic-network? The example network, basic-network, consists of 4 Docker containers. You can view the log file on each container. 1. View log file of the orderer container: $ docker logs orderer.example.com [orderer.common.server] prettyPrintStruct -&...
2020-04-14, 407👍, 0💬

"docker image" - Manage Images
How to manage images with "docker image" commands? A Docker image is a binary file used to build containers. Images are used to store and ship applications. You can use "docker image" commands to manage Docker images. Here is a list of sub-commands supported by "docker image": $ docker image --help ...
2019-04-05, 407👍, 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, 406👍, 0💬

stop.sh - Stop basic-network
How to run stop.sh script to stop the Hyperledger Fabric example network, basic-network? You can follow this tutorial to run stop.sh script to stop the Hyperledger Fabric example network, basic-network. 1. Run stop.sh script to stop the basic-network: $ cd ~/hyperledger-binaries/fabric- samples/basic...
2020-04-25, 405👍, 0💬

"docker image pull" - Pull Image
How to pull an image from the remote registry to the local repository with "docker image pull" command? If you know the name of a Docker image, you can pull it from the remote registry to your local repository using the "docker image pull", or "docker pull" command. 1. Run "docker image pull" comman...
2019-04-22, 405👍, 0💬

"docker image inspect alpine" - Inspect Alpine Image
How to Inspect Alpine Docker Image with the "docker image inspect alpine" command? To get more detailed information about the Alpine Docker Image, you can use the "docker image inspect alpine" command. 1. Download the image from the registry. $ docker image inspect alpine [ { "Id": "sha256:055936d39...
2019-03-04, 405👍, 0💬

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