feat: Add create issue credential

closes #2

Signed-off-by: talwinder.kaur <talwinder.kaur@securekey.com>

cmd/vc-rest/go.mod

@@ -0,0 +1,16 @@
+// Copyright SecureKey Technologies Inc. All Rights Reserved.
+//
+// SPDX-License-Identifier: Apache-2.0
+
+module github.com/trustbloc/edge-service/cmd/vc-rest
+
+replace github.com/trustbloc/edge-service => ../..
+
+require (
+	github.com/gorilla/mux v1.7.3
+	github.com/spf13/cobra v0.0.5
+	github.com/stretchr/testify v1.4.0
+	github.com/trustbloc/edge-service v0.0.0
+)
+
+go 1.13

cmd/vc-rest/main.go

@@ -0,0 +1,30 @@
+/*
+Copyright SecureKey Technologies Inc. All Rights Reserved.
+
+SPDX-License-Identifier: Apache-2.0
+*/
+
+package main
+
+import (
+	"log"
+
+	"github.com/spf13/cobra"
+
+	"github.com/trustbloc/edge-service/cmd/vc-rest/startcmd"
+)
+
+func main() {
+	rootCmd := &cobra.Command{
+		Use: "vc-rest",
+		Run: func(cmd *cobra.Command, args []string) {
+			cmd.HelpFunc()(cmd, args)
+		},
+	}
+
+	rootCmd.AddCommand(startcmd.GetStartCmd(&startcmd.HTTPServer{}))
+
+	if err := rootCmd.Execute(); err != nil {
+		log.Fatalf("Failed to run vc-rest: %s", err.Error())
+	}
+}

cmd/vc-rest/main_test.go

@@ -0,0 +1,25 @@
+/*
+Copyright SecureKey Technologies Inc. All Rights Reserved.
+SPDX-License-Identifier: Apache-2.0
+*/
+
+package main
+
+import (
+	"os"
+	"testing"
+)
+
+// Correct behaviour is for main to finish with exit code 0.
+// This test fails otherwise. However, this can't be checked by the unit test framework. The *testing.T argument is
+// only there so that this test gets picked up by the framework but otherwise we don't need it.
+func TestWithoutUserAgs(t *testing.T) { //nolint - see above
+	setUpArgs()
+	main()
+}
+
+// Strips out the extra args that the unit test framework adds
+// This allows main() to execute as if it was called directly from the command line
+func setUpArgs() {
+	os.Args = os.Args[:1]
+}

cmd/vc-rest/startcmd/start.go

@@ -0,0 +1,95 @@
+/*
+Copyright SecureKey Technologies Inc. All Rights Reserved.
+
+SPDX-License-Identifier: Apache-2.0
+*/
+
+package startcmd
+
+import (
+	"errors"
+	"net/http"
+
+	"github.com/gorilla/mux"
+	"github.com/spf13/cobra"
+
+	"github.com/trustbloc/edge-service/pkg/restapi/vc/operation"
+	cmdutils "github.com/trustbloc/edge-service/pkg/utils/cmd"
+)
+
+const (
+	hostURLFlagName      = "host-url"
+	hostURLFlagShorthand = "u"
+	hostURLFlagUsage     = "URL to run the vc-rest instance on. Format: HostName:Port."
+	hostURLEnvKey        = "VC_REST_HOST_URL"
+)
+
+var errMissingHostURL = errors.New("host URL not provided")
+
+type vcRestParameters struct {
+	srv     server
+	hostURL string
+}
+
+type server interface {
+	ListenAndServe(host string, router http.Handler) error
+}
+
+// HTTPServer represents an actual HTTP server implementation.
+type HTTPServer struct{}
+
+// ListenAndServe starts the server using the standard Go HTTP server implementation.
+func (s *HTTPServer) ListenAndServe(host string, router http.Handler) error {
+	return http.ListenAndServe(host, router)
+}
+
+// GetStartCmd returns the Cobra start command.
+func GetStartCmd(srv server) *cobra.Command {
+	startCmd := createStartCmd(srv)
+
+	createFlags(startCmd)
+
+	return startCmd
+}
+
+func createStartCmd(srv server) *cobra.Command {
+	return &cobra.Command{
+		Use:   "start",
+		Short: "Start vc-rest",
+		Long:  "Start vc-rest inside the edge-service",
+		RunE: func(cmd *cobra.Command, args []string) error {
+			hostURL, err := cmdutils.GetUserSetVar(cmd, hostURLFlagName, hostURLEnvKey)
+			if err != nil {
+				return err
+			}
+			parameters := &vcRestParameters{
+				srv:     srv,
+				hostURL: hostURL,
+			}
+			return startEdgeService(parameters)
+		},
+	}
+}
+
+func createFlags(startCmd *cobra.Command) {
+	startCmd.Flags().StringP(hostURLFlagName, hostURLFlagShorthand, "", hostURLFlagUsage)
+}
+
+func startEdgeService(parameters *vcRestParameters) error {
+	if parameters.hostURL == "" {
+		return errMissingHostURL
+	}
+
+	vcService := operation.New()
+
+	handlers := vcService.GetRESTHandlers()
+	router := mux.NewRouter()
+
+	for _, handler := range handlers {
+		router.HandleFunc(handler.Path(), handler.Handle()).Methods(handler.Method())
+	}
+
+	err := parameters.srv.ListenAndServe(parameters.hostURL, router)
+
+	return err
+}

cmd/vc-rest/startcmd/start_test.go

@@ -0,0 +1,95 @@
+/*
+Copyright SecureKey Technologies Inc. All Rights Reserved.
+SPDX-License-Identifier: Apache-2.0
+*/
+
+package startcmd
+
+import (
+	"net/http"
+	"os"
+	"testing"
+
+	"github.com/spf13/cobra"
+	"github.com/stretchr/testify/require"
+)
+
+type mockServer struct{}
+
+func (s *mockServer) ListenAndServe(host string, handler http.Handler) error {
+	return nil
+}
+
+func TestStartCmdContents(t *testing.T) {
+	startCmd := GetStartCmd(&mockServer{})
+
+	require.Equal(t, "start", startCmd.Use)
+	require.Equal(t, "Start vc-rest", startCmd.Short)
+	require.Equal(t, "Start vc-rest inside the edge-service", startCmd.Long)
+
+	checkFlagPropertiesCorrect(t, startCmd, hostURLFlagName, hostURLFlagShorthand, hostURLFlagUsage)
+}
+
+func TestStartCmdWithBlankHostArg(t *testing.T) {
+	startCmd := GetStartCmd(&mockServer{})
+
+	args := []string{"--" + hostURLFlagName, ""}
+	startCmd.SetArgs(args)
+
+	err := startCmd.Execute()
+
+	require.Equal(t, errMissingHostURL.Error(), err.Error())
+}
+
+func TestStartCmdWithMissingHostArg(t *testing.T) {
+	startCmd := GetStartCmd(&mockServer{})
+
+	err := startCmd.Execute()
+
+	require.Equal(t,
+		"Neither host-url (command line flag) nor VC_REST_HOST_URL (environment variable) have been set.",
+		err.Error())
+}
+
+func TestStartEdgeStoreWithBlankHost(t *testing.T) {
+	parameters := &vcRestParameters{hostURL: ""}
+
+	err := startEdgeService(parameters)
+	require.NotNil(t, err)
+	require.Equal(t, errMissingHostURL, err)
+}
+
+func TestStartCmdValidArgs(t *testing.T) {
+	startCmd := GetStartCmd(&mockServer{})
+
+	args := []string{"--" + hostURLFlagName, "localhost:8080"}
+	startCmd.SetArgs(args)
+
+	err := startCmd.Execute()
+
+	require.Nil(t, err)
+}
+
+func TestStartCmdValidArgsEnvVar(t *testing.T) {
+	startCmd := GetStartCmd(&mockServer{})
+
+	err := os.Setenv(hostURLEnvKey, "localhost:8080")
+	require.Nil(t, err)
+
+	err = startCmd.Execute()
+
+	require.Nil(t, err)
+}
+
+func checkFlagPropertiesCorrect(t *testing.T, cmd *cobra.Command, flagName, flagShorthand, flagUsage string) {
+	flag := cmd.Flag(flagName)
+
+	require.NotNil(t, flag)
+	require.Equal(t, flagName, flag.Name)
+	require.Equal(t, flagShorthand, flag.Shorthand)
+	require.Equal(t, flagUsage, flag.Usage)
+	require.Equal(t, "", flag.Value.String())
+
+	flagAnnotations := flag.Annotations
+	require.Nil(t, flagAnnotations)
+}

go.mod

@@ -7,11 +7,8 @@ module github.com/trustbloc/edge-service
 go 1.13
 
 require (
-	github.com/go-language-server/uri v0.2.0 // indirect
-	github.com/gorilla/mux v1.7.3
-	github.com/hyperledger/aries-framework-go v0.1.0
+	github.com/hyperledger/aries-framework-go v0.1.1-0.20200113160002-41ea60bef355
 	github.com/sirupsen/logrus v1.4.2
 	github.com/spf13/cobra v0.0.5
 	github.com/stretchr/testify v1.4.0
-	golang.org/x/tools v0.0.0-20191223235410-3721262b3e7c // indirect
 )