Add Communication API to user URLs

We don't want to build URLs anywhere but in the server.

api/user.go

@@ -9,8 +9,12 @@ import (
 	"github.com/Gleipnir-Technology/nidus-sync/platform"
 )
 
+type contentURLAPI struct {
+	Communication string `json:"api"`
+}
 type contentURLs struct {
-	Tegola string `json:"tegola"`
+	API    contentURLAPI `json:"api"`
+	Tegola string        `json:"tegola"`
 }
 type contentUserSelf struct {
 	Self platform.User `json:"self"`
@@ -27,6 +31,9 @@ func getUserSelf(ctx context.Context, r *http.Request, user platform.User, query
 	return &contentUserSelf{
 		Self: user,
 		URLs: contentURLs{
+			API: contentURLAPI{
+				Communication: urls.API.Communication,
+			},
 			Tegola: urls.Tegola,
 		},
 	}, nil

html/url.go

@@ -7,6 +7,7 @@ import (
 )
 
 type ContentURL struct {
+	API                contentURLAPI
 	Configuration      contentURLConfiguration
 	OAuthRefreshArcGIS string
 	RMO                contentURLRMO
@@ -19,6 +20,7 @@ type ContentURL struct {
 
 func NewContentURL() ContentURL {
 	return ContentURL{
+		API:                newContentURLAPI(),
 		Configuration:      newContentURLConfiguration(),
 		OAuthRefreshArcGIS: config.MakeURLNidus("/arcgis/oauth/begin"),
 		RMO:                newContentURLRMO(),
@@ -30,6 +32,16 @@ func NewContentURL() ContentURL {
 	}
 }
 
+type contentURLAPI struct {
+	Communication string
+}
+
+func newContentURLAPI() contentURLAPI {
+	return contentURLAPI{
+		Communication: config.MakeURLNidus("/api/communication"),
+	}
+}
+
 type contentURLConfiguration struct {
 	ArcGIS       string
 	Fieldseeker  string