successful post to api re-renders page

public/js/app.js

@@ -20,7 +20,8 @@ convertXDataPointToVisualPoint.domain([new Date('2016-1-1'), new Date('2017-1-1'
 // console.log(convertYDataPointToVisualPoint(0.1));
 // console.log(convertYDataPointToVisualPoint.invert(490));
 
-d3.json('/runs', function(error, data){
+var render = function(){
+	d3.json('/runs', function(error, data){
 		d3.select('svg').selectAll('circle')
 			.data(data)
 			.enter()
@@ -32,7 +33,10 @@ d3.json('/runs', function(error, data){
 			.attr('cx', function(datum, index){
 				return convertXDataPointToVisualPoint(new Date(datum.date));
 			});
-});
+	});
+};
+
+render();
 
 d3.select('svg').on('click', function(){
 	var distance = convertYDataPointToVisualPoint.invert(d3.event.offsetY);
@@ -46,8 +50,6 @@ d3.select('svg').on('click', function(){
 		.post(
 			//must turn data object into string
 			JSON.stringify(runObject),
-			function(){ //callback
-				console.log('success');
-			}
+			render
 		);
 })