Altering fabcar example hyperledger-fabric -


i have been playing around hyperledger-fabric samples/fabcar example while , able add more fields , functions in fabcar.go when change fields entirely. getting errors in deployment.

here example of changes have made in fabcar.go.

type car struct { name  string `json:"name"` college  string `json:"college"` dob  string `json:"dob"` secretcode  string `json:"secretcode"`     }  func (s *smartcontract) initledger(apistub shim.chaincodestubinterface) sc.response { cars := []car{     car{name: "name1", college: "college1", dob: "dob1", secretcode: "secretcode1"},     car{name: "name2", college: "college2", dob: "dob2", secretcode: "secretcode2"},     car{name: "name3", college: "college3", dob: "dob3", secretcode: "secretcode3"},     car{name: "name4", college: "college4", dob: "dob4", secretcode: "secretcode4"},     } := 0 < len(cars) {     fmt.println("i ", i)     carasbytes, _ := json.marshal(cars[i])     apistub.putstate("car"+strconv.itoa(i), carasbytes)     fmt.println("added", cars[i])     = + 1 }  return shim.success(nil) }

here error when run startfabric.sh

error: error endorsing chaincode: rpc error: code = unknown desc = error starting container: failed generate platform-specific docker build: error returned build: 2 "# github.com/fabcar chaincode/input/src/github.com/fabcar/fabcar.go:132: unknown car field 'make' in struct literal chaincode/input/src/github.com/fabcar/fabcar.go:132: unknown car field 'model' in struct literal chaincode/input/src/github.com/fabcar/fabcar.go:132: unknown car field 'colour' in struct literal chaincode/input/src/github.com/fabcar/fabcar.go:132: unknown car field 'owner' in struct literal chaincode/input/src/github.com/fabcar/fabcar.go:193: car.owner undefined (type car has no field or method owner) chaincode/input/src/github.com/fabcar/fabcar.go:211: car.colour undefined (type car has no field or method colour) "

i using mac osx yosemite , have tried cleaning docker removing data , starting again , have tried renaming go file nothing works. doing wrong here?

output of go build command:

go build ../../../../../go/src/github.com/hyperledger/fabric/protos/peer/admin.pb.go:74:8: use of vendored package not allowed ../../../../../go/src/github.com/hyperledger/fabric/protos/peer/admin.pb.go:77:8: use of vendored package not allowed ../../../../../go/src/github.com/hyperledger/fabric/protos/peer/chaincode.pb.go:9:8: use of vendored package not allowed ../../../../../go/src/github.com/hyperledger/fabric/protos/peer/init.go:21:2: use of vendored package not allowed ../../../../../go/src/github.com/hyperledger/fabric/bccsp/pkcs11/conf.go:25:2: use of vendored package not allowed ../../../../../go/src/github.com/hyperledger/fabric/protos/peer/admin.pb.go:80:2: use of vendored package not allowed ../../../../../go/src/github.com/hyperledger/fabric/protos/peer/admin.pb.go:81:2: use of vendored package not allowed ../../../../../go/src/github.com/hyperledger/fabric/common/flogging/grpclogger.go:21:2: use of vendored package not allowed

it seems having compilation error, while changed structure of car be

type car struct {      name        string `json:"name"`      college     string `json:"college"`      dob         string `json:"dob"`      secretcode  string `json:"secretcode"` }

while many function remained in fabcar.go still trying use struct "old fashion" way, assuming previous model:

type car struct {         make   string `json:"make"`         model  string `json:"model"`         colour string `json:"colour"`         owner  string `json:"owner"` }

for example:

func (s *smartcontract) createcar(apistub shim.chaincodestubinterface, args []string) sc.response {          if len(args) != 5 {                 return shim.error("incorrect number of arguments. expecting 5")         }          var car = car{make: args[1], model: args[2], colour: args[3], owner: args[4]}          carasbytes, _ := json.marshal(car)         apistub.putstate(args[0], carasbytes)          return shim.success(nil) }

i suggest instead reusing declaration of car struct create own , use properly:

type student struct {      name        string `json:"name"`      college     string `json:"college"`      dob         string `json:"dob"`      secretcode  string `json:"secretcode"` }

and

func (s *smartcontract) initledger(apistub shim.chaincodestubinterface) sc.response {    cars := []student{     student{name: "name1", college: "college1", dob: "dob1", secretcode: "secretcode1"},     student{name: "name2", college: "college2", dob: "dob2", secretcode: "secretcode2"},     student{name: "name3", college: "college3", dob: "dob3", secretcode: "secretcode3"},     student{name: "name4", college: "college4", dob: "dob4", secretcode: "secretcode4"},     }    := 0    < len(cars) {       fmt.println("i ", i)       carasbytes, _ := json.marshal(cars[i])       apistub.putstate("car"+strconv.itoa(i), carasbytes)       fmt.println("added", cars[i])       = + 1    }      return shim.success(nil) }

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