/learning-chaincode

learn to write hyperledger fabric chaincode

Primary LanguageGo

learning-chaincode

learn to write hyperledger fabric chaincode

  • couchcar

    this is a chaincode writed by go language when using CouchDB as the State Database in Fabric

    this contract is about the car adapted by the marbles chaincode and Fabcar chaincode.I using the first-network sample to test the chaincode

    ./byfn.sh -c mychannel -s couchdb

    this chaincode using four indexes,so we can query by them using rich queries very easily:

    • index_Color
    • index_Owner
    • index_Price
    • index_Year

    OK,the more using detail is writed in the chaincode annotation

  • access-control

    using Client Identity Chaincode Library called cid library to reach access control. This chiancode modified a little by the fabcar chaincode.

  • Using_FabricEvent

    This example is used to learn the event using in the Hyperledger Fabric Node SDK By changing the Fabcar example.

    you can put the example Event-Fabcar in the directory offabric-samples.And the next steps are same as the fabcar.Also you should replace the original fabcar chaincode with chaincode in this directory .

    In this example , you can learn three types of events:

    • ContractEvent(chaincode)
    • BlockEvent(Block)
    • CommitEvent(Transaction)

  • car_privateData

    This Example is used to display the usage of Private Data in Fabric 1.4.4. The details of it are written in the chaincode.

  • key-level-ep

    This chaincode demonstrated the usage of the Key-level endorsement policy,which is a particular endorsement policy unlike the chaincode-level endorsement policy.

    The using details are written in the chancode folder.