return sum of population for selected spacial cut

src/libs/routes/population.js

@@ -98,12 +98,13 @@ populationApp.get('/', rqf.parse(), rqf.build(), (req, res, next) => {
    .group('ibge_populacao.ano_censo')
    next();
 }, query, (req, res, next) => {
-    // let somapop = 0;
-    // for (var i = 0; i < req.result.length; i++) {
-    //     somapop += req.result[i].population;
-    // }
-    //
-    // req.result = [somapop];
+    let somapop = 0;
+    for (var i = 0; i < req.result.length; i++) {
+        somapop += req.result[i].population;
+    }
+
+    req.result = [{population: somapop, year: req.result[0].year}];
+    console.log(req.params);
     next()
 }, id2str.transform(true), response('population'));