Cannot view data on page after adding API requests nodejs - node.js

Question

I've added API requests which would retrieve data from MongoDB I believe. Whilst no issues arise when running the code, the pages do not show any data; I just get an error message (retrieved from a separate piece of code) stating the page cannot be found.
This is the code from my Locations controller:
module.exports.homelist = function(req, res){
var requestOptions, path;
path = '/api/locations';
requestOptions = {
url : apiOptions.server + path,
method : "GET",
json : {},
qs : {
lng : -0.7992599,
lat : 51.378091,
maxDistance : 20
}
};
request (
requestOptions,
function(err, response, body) {
var i, data;
data = body;
if(response.statusCode === 200 && data.length){
for (i=0; i<data.length; i++) {
data[i].distance = _formatDistance(data[i].distance);
}
}
renderLocHomepage(req, res, body);
}
);
var _formatDistance = function (distance){
var numDistance, unit;
if (distance > 1){
numDistance = parseFloat(distance).toFixed(1);
unit = 'km';
} else {
numDistance = parseInt(distance * 1000,10);
unit = 'm';
}
return numDistance + unit;
}
};
var renderLocHomepage = function(req, res, responseBody){
var message;
if(!(responseBody instanceof Array)){
message = "API lookup error";
responseBody = [];
} else {
if (!responseBody.length) {
message = "No places found nearby";
}
}
res.render('location', {
title: 'Location Title 2',
pageHeader: {
title: 'fuiewhf',
strapline: 'sdjkcdivfdvdj'
},
sidebar: "efvibjdmkdsuidjvifdvhiskfbvzd",
locations: responseBody,
message: message
});
};
/* GET 'Locations List' page*/
module.exports.locationsList = function(req, res) {
res.render('locations-list', {title: 'Locations List'});
};
module.exports.locationInfo = function(req, res){
renderDetailPage(req, res);
};
var renderDetailPage = function (req, res, locDetail){
res.render('location-info', {
title: locDetail.name,
pageHeader: {title: locDetail.name},
sidebar: {
context: 'is on Loc8r because it has some accessible wifi and space to sit',
callToAction: 'If you\'ve been and you like it or don\'t, please leave a review'
},
location: locDetail
});
};
/*GET 'Location info' page */
module.exports.locationInfo = function(req, res){
var requestOptions, path;
path = "/api/locations/" + req.params.locationid;
requestOptions = {
url : apiOptions.server + path,
method : "GET",
json : {}
};
request (requestOptions, function(err, response, body) {
var data = body;
if (response.statusCode === 200){
data.coords = {
lng : body.coords[0],
lat : body.coords[1],
};
renderDetailPage(req, res, data);
} else{
_showError(req, res, response.statusCode);
}
}
);
};
module.exports.locationsListByDistance = function(req, res){
var lng = parseFloat(req.query.lng);
var lat = parseFloat(req.query.lat);
var point = {
type: "Point",
coordinates: [lng, lat]
};
var geoOptions = {
spherical: true,
maxDistance: theEarth.getRadsFromDistance(20),
num: 10
};
if ((!lng && lng!==0) || (!lat && lat!==0)) {
sendJsonResponse(res, 404, {
"message": "lng and lat query parameters are required"
});
return;
}
Location.geoNear(point, geoOptions, function(err, results, stats){
var locations = [];
if (err) {
sendJsonResponse(res, 404, err);
} else {
results.forEach(function(doc) {
locations.push({
distance: theEarth.getDistanceFromRads(doc.dis),
name: doc.obj.name,
address: doc.obj.address,
rating: doc.obj.rating,
facilities: doc.obj.facilities,
_id: doc.obj._id
});
});
sendJsonResponse(res, 200, locations);
}
});
};
var _formatDistance = function (distance){
var numDistance, unit;
if (distance > 1){
numDistance = parseFloat(distance).toFixed(1);
unit = 'km';
} else {
numDistance = parseInt(distance * 1000,10);
unit = 'm';
}
return numDistance + unit;
};
//defining a call to an API
var requestOptions = {
url: "", //define URL of API call to be made
method: "GET", //set request method
json: {},
qs: {
offset: 20
}
};
request(requestOptions, function(err, response, body) {
if(err){
console.log(err);
} else if(response.statusCode === 200) {
console.log(body);
} else {
console.log(response.statusCode);
}
});
//Create a new reusable function to get location information
var getLocationInfo = function(req, res, callback) {
var requestOptions, path;
path = "/api/locations/" + req.params.locationid;
requestOptions = {
url : apiOptions.server + path,
method : "GET",
json : {}
};
request (
requestOptions,
function(err, response, body) {
var data = body;
if (response.statusCode === 200) {
data.coords = {
lng : body.coords[0],
lat : body.coords[1]
};
callback(req, res, data);
} else {
_showError(req, res, response.statusCode);
}
}
);
};
module.exports.locationInfo = function(req, res){
getLocationInfo(req, res, function (req, res, responseData){
renderDetailPage(req, res, responseData);
});
};

Answer 1

In renderHomepage you have res.render('/'... but res.render takes as first parameter the name of the file you want to render (minus the file extension):
res.render('index', ...
if your homepage is under views/index.ejs for example.