Chaincode APIs

The shim package in the Fabric source code package provides the following types of APIs:

• Parameter parsing APIs: used to parse parameters transferred to the invoked function or method during chaincode invocation
• Ledger data operation APIs: used to provide methods for performing operations on ledger data, including status data query and transaction processing
• Transaction obtaining APIs: used to obtain information about transaction proposals
• APIs for private data operations: used to perform operations on private data (the APIs are available since Hyperledger Fabric v1.2.0)
• Other APIs: used to set events and invoke other chaincodes