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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, 755👍, 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, 755👍, 0💬

Hyperledger Composer Playground Server
Where to find tutorials on Hyperledger Composer Playground Server. Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team on Hyperledger Composer Playground Server. What is Hyperledger Composer Playground Server Start Hyperledger Composer Playground Serv...
2021-02-17, 751👍, 0💬

Install Hyplerledger Composer Environment
Where to find tutorials on installing Hyplerledger Composer Environment on Ubuntu. Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team on installing Hyplerledger Composer Environment on Ubuntu. Hyplerledger Composer Environment Requirement Install Com...
2021-05-04, 750👍, 0💬

Business Network CTO Modeling Language
Where to find tutorials on Business Network CTO Modeling Language. Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team on Business Network CTO Modeling Language. What Is CTO Modeling Language CTO Language Statements "participant" CTO Statement Syntax ...
2022-02-19, 742👍, 0💬

Basic Sample Business Network - SampleTransaction
How to submit SampleTransaction request to Basic Sample Business Network? You can follow this tutorial to submit SampleTransaction request to Basic Sample Business Network. 1. Open Hyperledger Composer Playground and go to Basic Sample Business Network home page, as shown in the previous tutorial. 2...
2020-12-22, 741👍, 0💬

Business Network JS Scripting Language
Where to find tutorials on Business Network JS Scripting Language. Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team on Business Network JS Scripting Language. What Is JS Scripting Language "transaction" Process Function Syntax "transaction" Data Ty...
2021-06-19, 740👍, 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, 737👍, 0💬

Business Network Source Code Architecture
What Is Business Network Source Code Architecture? Business Network Source Code Architecture can be summarized in the following diagram: Hyperledger Composer offers tools to help you developing hyperledger application, called business network, with following source code files: Model Files (*.cto) - ...
2022-02-19, 735👍, 0💬

"participant" CTO Statement Syntax
What is the syntax of the "participant" CTO Statement The "participant" CTO statement declares a participant data type to represent someone who can interact with the business network under access control rules. Here is the syntax of a "participant" statement: [abstract] participant type_name [identi...
2021-08-01, 734👍, 0💬

Peer Log Messages - Start Environment
How to verify peer node log messages to ensure my Hyperledger Composer developer environment is started correctly? You can follow this tutorial to verify peer node log messages generated during the Hyperledger Composer developer environment start up process. 1. Stop the environment: $ cd fabric-dev-...
2020-12-02, 734👍, 0💬

"transaction" Data Type Declared in CTO
How to declare a "transaction" data type in the CTO model file? If you want your Hyplerledger Composer business network to accept a business transaction, you need to use the "transaction" CTO statement to declare a "transaction" data type in a CTO model file. The "transaction" data type specifies ho...
2021-06-05, 732👍, 0💬

Verify Hyperledger Composer Prerequisites on Ubuntu
How to verify Hyplerledger Composer Prerequisites on Ubuntu? You can use the following commands to verify Hyplerledger Composer Prerequisites on Ubuntu: 1. Verify Docker Engine: $ docker --version Docker version 18.09.2, build 6247962 $ ps -e | grep dockerd 17939 ? 00:39:58 dockerd 2. Verify Docker ...
2021-05-04, 732👍, 0💬

"enum" CTO Statement Syntax
What is the syntax of the "enum" CTO Statement The "enum" statement declares an enumeration data type to represent data values with predefined options. Here is the syntax of an "enum" statement: enum type_name [extends super_type] { o value_option ... } Syntax elements used in a "transaction" CTO St...
2021-06-19, 731👍, 0💬

"transaction" Process Function Defined in JS
How to define a "transaction" process function in the JS scripting file? If you want your Hyplerledger Composer business network to process a business transaction, you need to the "function" JavaScript statement to define a "transaction" process function in a JS scripting file. When Hyplerledger Com...
2021-06-05, 729👍, 0💬

What Is JS Scripting Language
What is Business Network JS Scripting Language? Business Network JS Scripting Language is the standard JavaScript language to define business logics on how each transaction is processed. JavaScript source code can be stored in a single or multiple files with the *.js file extension. Each JavaScript ...
2021-06-05, 728👍, 0💬

Install Hyperledger Composer on UBuntu
How to install Hyplerledger Composer on Ubuntu? You can follow this tutorial to install Hyplerledger Composer on Ubuntu 1. Install Hyplerledger Composer CLI: $ sudo npm install -g composer-cli ... installation messages ... $ composer --version v0.20.8 2. Install Hyplerledger Composer REST API Server...
2021-05-04, 727👍, 0💬

Peer Containers Not Joined to Channel
Can I stop Peer Containers That Are Not Joined to Channel? Yes. You can stop Peer Containers That Are Not Joined to Channel. For example, you have 1 channel, "mychannel", and 4 peers. You know that only 2 of them are joined to the channel. You can stop the other peer containers. 1. List all peer con...
2020-07-07, 727👍, 0💬

View "console.log()" Output in Playground
How to view "console.log()" Output in Hyperledger Composer Playground? If you use "console.log()" to print out debug information in your transaction process functions, you can follow this tutorial to see the "console.log()" in Hyperledger Composer Playground. 1. Add the following CTO modeling file t...
2021-06-05, 723👍, 0💬

"event" CTO Statement Syntax
What is the syntax of the "event" CTO Statement? The "event" statement declares the output message structure of an event type, which can be emitted from the business network for external systems to consume. Here is the syntax of an "event" statement: event type_name [extends super_type] { o|--&g...
2021-06-19, 721👍, 0💬

Basic Sample Business Network - SampleEvent
How to view SampleEvent emitted from Basic Sample Business Network? You can follow this tutorial to view SampleEvent emitted from Basic Sample Business Network. Since SampleEvent is generated by the SampleTransaction process, it is recorded as a child object to the SampleTransaction record. 1. Open ...
2020-12-15, 721👍, 0💬

Versions of Hyplerledger Composer Environment
How many versions do I have with my Hyplerledger Composer development environment? The installation package fabric-dev-servers.tar.gz actually provides 3 versions of Hyplerledger Composer development environment. You can them in the "fabric-scripts" sub-directory: $ cd fabric-dev-servers $ ls -l fab...
2020-07-22, 719👍, 0💬

"transaction" CTO Statement Syntax
What is the syntax of the "transaction" CTO Statement The "transaction" statement declares the input message structure of a transaction type, which can be submitted to the business network for processing. Here is the syntax of an "transaction" statement: transaction type_name [extends super_type] { ...
2021-08-01, 716👍, 0💬

Install Hyperledger Fabric on UBuntu
How to install Hyplerledger Fabric on Ubuntu? You can follow this tutorial to install Hyplerledger Fabric on Ubuntu. 1. Download the Hyplerledger Fabric Dev Environment package: $ mkdir fabric-dev-servers $ cd fabric-dev-servers $ curl -O https://raw.githubusercontent. com/hyperledger/composer-tools...
2021-04-04, 716👍, 0💬

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