add one more project structure recommendation

_examples/project/api/router.go

@@ -0,0 +1,22 @@
+package api
+
+import (
+	"github.com/username/project/api/users"
+	"github.com/username/project/user"
+
+	"github.com/kataras/iris/v12"
+)
+
+// buildRouter is the most important part of your server.
+// All root endpoints are registered here.
+func (srv *Server) buildRouter() {
+	// Add a simple health route.
+	srv.Any("/health", func(ctx iris.Context) {
+		ctx.Writef("%s\n\nOK", srv.String())
+	})
+
+	api := srv.Party("/api")
+	api.RegisterDependency(user.NewRepository)
+
+	api.PartyConfigure("/user", new(users.API))
+}