Add annotation to trigger on create if endpoints are enabled (#1177)

* Add annotations for creation of triggers and fns along with the test for them fixes #1178

* Log errors and still return created resource for annotation failures

api/server/trigger_create.go

@@ -1,8 +1,10 @@
 package server
 
 import (
+	"fmt"
 	"net/http"
 
+	"github.com/fnproject/fn/api/common"
 	"github.com/fnproject/fn/api/models"
 	"github.com/gin-gonic/gin"
 )
@@ -10,6 +12,7 @@ import (
 func (s *Server) handleTriggerCreate(c *gin.Context) {
 	ctx := c.Request.Context()
 	trigger := &models.Trigger{}
+	log := common.Logger(ctx)
 
 	err := c.BindJSON(trigger)
 	if err != nil {
@@ -27,5 +30,19 @@ func (s *Server) handleTriggerCreate(c *gin.Context) {
 		return
 	}
 
-	c.JSON(http.StatusOK, triggerCreated)
+	app, err := s.datastore.GetAppByID(ctx, triggerCreated.AppID)
+	if err != nil {
+		log.Debugln(fmt.Errorf("unexpected error - trigger app not available: %s", err))
+		c.JSON(http.StatusOK, triggerCreated)
+		return
+	}
+
+	triggerAnnotated, err := s.triggerAnnotator.AnnotateTrigger(c, app, triggerCreated)
+	if err != nil {
+		log.Debugln("Failed to annotate trigger on cration")
+		c.JSON(http.StatusOK, triggerCreated)
+		return
+	}
+
+	c.JSON(http.StatusOK, triggerAnnotated)
 }