Was wondering if anyone can help me with some flash message trouble?

(function(err) {

        if(err) {

            req.flash("error", "Something went wrong!");

            console.log(err);

        } else {

            req.flash("success", "Message has been sent!");

        }

    })();

    res.locals.message = req.flash();

    console.log(res.locals.message);

    res.render("contact");

 
That's in my app.js. In one of my views I have this:
 

<% if(locals.message) { %>

                    <div class="alert alert-success">

                        <%= message.success %>

                    </div>

                <% } else if(locals.message) {%>

                    <div class="alert alert-danger">

                        <%= message.error %>

                    </div>

                <% } %>

How can I fix up this statement to get this working properly?