Adjust message api to use new app/client id

api/internalutil.go

@@ -0,0 +1,15 @@
+package api
+
+import (
+	"github.com/gin-gonic/gin"
+	"errors"
+	"strconv"
+)
+
+func withID(ctx *gin.Context, name string, f func(id uint)) {
+	if id, err := strconv.ParseUint(ctx.Param(name), 10, 32); err == nil {
+		f(uint(id));
+	} else {
+		ctx.AbortWithError(400, errors.New("invalid id"))
+	}
+}