mirror of
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FABG-935 GoSDK Fabcar sample (#192)
Fabcar sample demonstrating the use of the new Gateway package in the Go SDK Signed-off-by: andrew-coleman <andrew_coleman@uk.ibm.com>
This commit is contained in:
Andrew Coleman
GitHub
parent
2759db2847
commit
cda88df4f6
9 changed files with 269 additions and 5 deletions
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@ -6,3 +6,16 @@ steps:
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- script: ./startFabric.sh go
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workingDirectory: fabcar
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displayName: Start Fabric
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- task: GoTool@0
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displayName: 'Use Go 1.14.2'
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inputs:
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version: '1.14.2'
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- task: Go@0
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displayName: 'go build'
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inputs:
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command: build
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arguments: '-o "fabcar"'
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workingDirectory: fabcar/go
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- script: DISCOVERY_AS_LOCALHOST=TRUE ./fabcar
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workingDirectory: fabcar/go
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displayName: Run FabCar Application
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2
fabcar/go/.gitignore
vendored
Executable file
2
fabcar/go/.gitignore
vendored
Executable file
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@ -0,0 +1,2 @@
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wallet
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!wallet/.gitkeep
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140
fabcar/go/fabcar.go
Normal file
140
fabcar/go/fabcar.go
Normal file
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@ -0,0 +1,140 @@
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/*
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Copyright 2020 IBM All Rights Reserved.
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SPDX-License-Identifier: Apache-2.0
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*/
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package main
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import (
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"errors"
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"fmt"
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"io/ioutil"
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"os"
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"path/filepath"
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"github.com/hyperledger/fabric-sdk-go/pkg/core/config"
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"github.com/hyperledger/fabric-sdk-go/pkg/gateway"
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)
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func main() {
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wallet, err := gateway.NewFileSystemWallet("wallet")
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if err != nil {
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fmt.Printf("Failed to create wallet: %s\n", err)
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os.Exit(1)
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}
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if !wallet.Exists("appUser") {
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err = populateWallet(wallet)
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if err != nil {
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fmt.Printf("Failed to populate wallet contents: %s\n", err)
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os.Exit(1)
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}
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}
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ccpPath := filepath.Join(
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"..",
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"..",
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"test-network",
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"organizations",
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"peerOrganizations",
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"org1.example.com",
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"connection-org1.yaml",
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)
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gw, err := gateway.Connect(
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gateway.WithConfig(config.FromFile(filepath.Clean(ccpPath))),
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gateway.WithIdentity(wallet, "appUser"),
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)
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if err != nil {
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fmt.Printf("Failed to connect to gateway: %s\n", err)
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os.Exit(1)
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}
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defer gw.Close()
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network, err := gw.GetNetwork("mychannel")
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if err != nil {
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fmt.Printf("Failed to get network: %s\n", err)
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os.Exit(1)
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}
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contract := network.GetContract("fabcar")
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result, err := contract.EvaluateTransaction("queryAllCars")
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if err != nil {
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fmt.Printf("Failed to evaluate transaction: %s\n", err)
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os.Exit(1)
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}
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fmt.Println(string(result))
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result, err = contract.SubmitTransaction("createCar", "CAR10", "VW", "Polo", "Grey", "Mary")
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if err != nil {
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fmt.Printf("Failed to submit transaction: %s\n", err)
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os.Exit(1)
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}
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fmt.Println(string(result))
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result, err = contract.EvaluateTransaction("queryCar", "CAR10")
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if err != nil {
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fmt.Printf("Failed to evaluate transaction: %s\n", err)
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os.Exit(1)
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}
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fmt.Println(string(result))
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_, err = contract.SubmitTransaction("changeCarOwner", "CAR10", "Archie")
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if err != nil {
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fmt.Printf("Failed to submit transaction: %s\n", err)
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os.Exit(1)
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}
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result, err = contract.EvaluateTransaction("queryCar", "CAR10")
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if err != nil {
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fmt.Printf("Failed to evaluate transaction: %s\n", err)
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os.Exit(1)
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}
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fmt.Println(string(result))
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}
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func populateWallet(wallet *gateway.Wallet) error {
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credPath := filepath.Join(
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"..",
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"..",
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"test-network",
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"organizations",
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"peerOrganizations",
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"org1.example.com",
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"users",
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"User1@org1.example.com",
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"msp",
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)
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certPath := filepath.Join(credPath, "signcerts", "cert.pem")
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// read the certificate pem
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cert, err := ioutil.ReadFile(filepath.Clean(certPath))
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if err != nil {
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return err
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}
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keyDir := filepath.Join(credPath, "keystore")
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// there's a single file in this dir containing the private key
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files, err := ioutil.ReadDir(keyDir)
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if err != nil {
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return err
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}
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if len(files) != 1 {
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return errors.New("keystore folder should have contain one file")
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}
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keyPath := filepath.Join(keyDir, files[0].Name())
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key, err := ioutil.ReadFile(filepath.Clean(keyPath))
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if err != nil {
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return err
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}
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identity := gateway.NewX509Identity("Org1MSP", string(cert), string(key))
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err = wallet.Put("appUser", identity)
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if err != nil {
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return err
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}
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return nil
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}
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5
fabcar/go/go.mod
Normal file
5
fabcar/go/go.mod
Normal file
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@ -0,0 +1,5 @@
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module fabcar
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go 1.14
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require github.com/hyperledger/fabric-sdk-go v1.0.0-beta1.0.20200526155846-219a09aadc0f // indirect
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87
fabcar/go/go.sum
Normal file
87
fabcar/go/go.sum
Normal file
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@ -0,0 +1,87 @@
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cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
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github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
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github.com/Knetic/govaluate v3.0.0+incompatible/go.mod h1:r7JcOSlj0wfOMncg0iLm8Leh48TZaKVeNIfJntJ2wa0=
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github.com/VividCortex/gohistogram v1.0.0/go.mod h1:Pf5mBqqDxYaXu3hDrrU+w6nw50o/4+TcAqDqk/vUH7g=
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github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
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github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
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github.com/cloudflare/cfssl v0.0.0-20180223231731-4e2dcbde5004/go.mod h1:yMWuSON2oQp+43nFtAV/uvKQIFpSPerB57DCt9t8sSA=
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github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
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github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
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github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
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github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
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github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
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github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
|
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github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
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github.com/golang/mock v1.2.0/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
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github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
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github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
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github.com/google/certificate-transparency-go v0.0.0-20180222191210-5ab67e519c93/go.mod h1:QeJfpSbVSfYc7RgB3gJFj9cbuQMMchQxrWXz8Ruopmg=
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github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
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github.com/hashicorp/hcl v0.0.0-20180404174102-ef8a98b0bbce/go.mod h1:oZtUIOe8dh44I2q6ScRibXws4Ajl+d+nod3AaR9vL5w=
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github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
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github.com/hyperledger/fabric-lib-go v1.0.0/go.mod h1:H362nMlunurmHwkYqR5uHL2UDWbQdbfz74n8kbCFsqc=
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github.com/hyperledger/fabric-protos-go v0.0.0-20191121202242-f5500d5e3e85/go.mod h1:xVYTjK4DtZRBxZ2D9aE4y6AbLaPwue2o/criQyQbVD0=
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github.com/hyperledger/fabric-sdk-go v1.0.0-beta1.0.20200526155846-219a09aadc0f h1:eAkJx0+8PBbfP6xZxVRD2agk9W7oDbqllxO+ERgnKJk=
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github.com/hyperledger/fabric-sdk-go v1.0.0-beta1.0.20200526155846-219a09aadc0f/go.mod h1:/s224b8NLvOJOCIqBvWd9O6u7GE33iuIOT6OfcTE1OE=
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github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515/go.mod h1:+0opPa2QZZtGFBFZlji/RkVcI2GknAs/DXo4wKdlNEc=
|
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github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
|
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github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
|
||||
github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
|
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github.com/magiconair/properties v1.7.6/go.mod h1:PppfXfuXeibc/6YijjN8zIbojt8czPbwD3XqdrwzmxQ=
|
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github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
|
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github.com/miekg/pkcs11 v0.0.0-20190329070431-55f3fac3af27/go.mod h1:WCBAbTOdfhHhz7YXujeZMF7owC4tPb1naKFsgfUISjo=
|
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github.com/mitchellh/mapstructure v0.0.0-20180220230111-00c29f56e238/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y=
|
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github.com/onsi/ginkgo v1.6.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
|
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github.com/onsi/gomega v1.4.2/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1CpauHY=
|
||||
github.com/pelletier/go-toml v1.1.0/go.mod h1:5z9KED0ma1S8pY6P1sdut58dfprrGBbd/94hg7ilaic=
|
||||
github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
|
||||
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
|
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github.com/prometheus/client_golang v0.8.0/go.mod h1:7SWBe2y4D6OKWSNQJUaRYU/AaXPKyh/dDVn+NZz0KFw=
|
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github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910/go.mod h1:MbSGuTsp3dbXC40dX6PRTWyKYBIrTGTE9sqQNg2J8bo=
|
||||
github.com/prometheus/common v0.0.0-20180518154759-7600349dcfe1/go.mod h1:daVV7qP5qjZbuso7PdcryaAu0sAZbrN9i7WWcTMWvro=
|
||||
github.com/prometheus/procfs v0.0.0-20180705121852-ae68e2d4c00f/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
|
||||
github.com/spf13/afero v1.1.0/go.mod h1:j4pytiNVoe2o6bmDsKpLACNPDBIoEAkihy7loJ1B0CQ=
|
||||
github.com/spf13/cast v1.2.0/go.mod h1:r2rcYCSwa1IExKTDiTfzaxqT2FNHs8hODu4LnUfgKEg=
|
||||
github.com/spf13/jwalterweatherman v0.0.0-20180109140146-7c0cea34c8ec/go.mod h1:cQK4TGJAtQXfYWX+Ddv3mKDzgVb68N+wFjFa4jdeBTo=
|
||||
github.com/spf13/pflag v1.0.1/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4=
|
||||
github.com/spf13/viper v1.0.2/go.mod h1:A8kyI5cUJhb8N+3pkfONlcEcZbueH6nhAm0Fq7SrnBM=
|
||||
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
|
||||
github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
|
||||
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
|
||||
golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
|
||||
golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
|
||||
golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
|
||||
golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
|
||||
golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
|
||||
golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
|
||||
golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
|
||||
golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
|
||||
golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
|
||||
golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
|
||||
golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
|
||||
golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
|
||||
golang.org/x/sync v0.0.0-20190227155943-e225da77a7e6/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
|
||||
golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
|
||||
golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
|
||||
golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
|
||||
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
|
||||
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
|
||||
golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
|
||||
golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3HoIrodX9oNMXvdceNzlUR8zjMvY=
|
||||
golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
|
||||
golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
|
||||
google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
|
||||
google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
|
||||
google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
|
||||
google.golang.org/genproto v0.0.0-20190327125643-d831d65fe17d/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
|
||||
google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
|
||||
google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
|
||||
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
|
||||
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
|
||||
gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
|
||||
gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
|
||||
gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
|
||||
honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
|
||||
honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
|
||||
|
|
@ -25,6 +25,7 @@ fi
|
|||
rm -rf javascript/wallet/*
|
||||
rm -rf java/wallet/*
|
||||
rm -rf typescript/wallet/*
|
||||
rm -rf go/wallet/*
|
||||
|
||||
# launch network; create channel and join peer to channel
|
||||
pushd ../test-network
|
||||
|
|
@ -103,4 +104,19 @@ Java:
|
|||
- Submit a transaction to change the owner of this car
|
||||
- Evaluate a transaction (query) to return the updated details of this car
|
||||
|
||||
Go:
|
||||
|
||||
Start by changing into the "go" directory:
|
||||
cd go
|
||||
|
||||
Then, install dependencies and run the test using:
|
||||
go run fabcar.go
|
||||
|
||||
The test will invoke the sample client app which perform the following:
|
||||
- Import user credentials into the wallet (if they don't already exist there)
|
||||
- Submit a transaction to create a new car
|
||||
- Evaluate a transaction (query) to return details of this car
|
||||
- Submit a transaction to change the owner of this car
|
||||
- Evaluate a transaction (query) to return the updated details of this car
|
||||
|
||||
EOF
|
||||
|
|
|
|||
|
|
@ -39,7 +39,7 @@
|
|||
"url": "https://localhost:${CAPORT}",
|
||||
"caName": "ca-org${ORG}",
|
||||
"tlsCACerts": {
|
||||
"pem": "${CAPEM}"
|
||||
"pem": ["${CAPEM}"]
|
||||
},
|
||||
"httpOptions": {
|
||||
"verify": false
|
||||
|
|
|
|||
|
|
@ -28,7 +28,8 @@ certificateAuthorities:
|
|||
url: https://localhost:${CAPORT}
|
||||
caName: ca-org${ORG}
|
||||
tlsCACerts:
|
||||
pem: |
|
||||
pem:
|
||||
- |
|
||||
${CAPEM}
|
||||
httpOptions:
|
||||
verify: false
|
||||
|
|
|
|||
Loading…
Reference in a new issue