Add extra event type for follows

Signed-off-by: Knut Ahlers <knut@ahlers.me>

api.go

@@ -21,6 +21,7 @@ const (
 	msgTypeAlert   string = "alert"
 	msgTypeBits    string = "bits"
 	msgTypeCustom  string = "custom"
+	msgTypeFollow  string = "follow"
 	msgTypeHost    string = "host"
 	msgTypeRaid    string = "raid"
 	msgTypeStore   string = "store"

demo.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"net/http"
+	"time"
 
 	"github.com/gorilla/mux"
 	"github.com/pkg/errors"
@@ -24,6 +25,12 @@ func handleDemoAlert(w http.ResponseWriter, r *http.Request) {
 			"total_amount": 1337,
 		}
 
+	case msgTypeFollow:
+		data = map[string]interface{}{
+			"from":        demoIssuer,
+			"followed_at": time.Now(),
+		}
+
 	case msgTypeHost:
 		data = map[string]interface{}{
 			"from":        demoIssuer,

webhook.go

@@ -90,6 +90,15 @@ func handleWebHookPush(w http.ResponseWriter, r *http.Request) {
 				continue
 			}
 
+			fields := map[string]interface{}{
+				"from":        f.FromName,
+				"followed_at": f.FollowedAt,
+			}
+
+			if err := subscriptions.SendAllSockets(msgTypeFollow, fields); err != nil {
+				log.WithError(err).Error("Unable to send update to all sockets")
+			}
+
 			logger.WithField("name", f.FromName).Info("New follower announced")
 			store.WithModLock(func() error {
 				store.Followers.Last = &f.FromName