github.com/adnan-c/fabric_e2e_couchdb@v0.6.1-preview.0.20170228180935-21ce6b23cf91/docs/API/ChaincodeAPI.md (about)

     1  # Chaincode APIs
     2  
     3  When the `Init`, `Invoke` or `Query` function of a chaincode is called, the fabric passes the `stub *shim.ChaincodeStub` parameter. This `stub` can be used to call APIs to access to the ledger services, transaction context, or to invoke other chaincodes.
     4  
     5  The current APIs are defined in the [shim package](https://godoc.org/github.com/hyperledger/fabric/core/chaincode/shim), generated by `godoc`. However, it includes functions from [chaincode.pb.go](https://github.com/hyperledger/fabric/blob/master/core/chaincode/shim/chaincode.pb.go) such as `func (*Column) XXX_OneofFuncs` that are not intended as public API. The best is to look at the function definitions in [chaincode.go](https://github.com/hyperledger/fabric/blob/master/core/chaincode/shim/chaincode.go) and [chaincode samples](https://github.com/hyperledger/fabric/tree/master/examples/chaincode) for usage.