Develop Reference

How do i retrieve data from a protected API via Jquery

this is my first time here so i hope i don't break any rules.
I have a Jquery code that retrieves info from an API that is written from a .net controller. Retrieving the infomration from the API works well, but now that i have to make the user sign in to view the API(Json), it of course stopped working in jquery. Is there anyway i can let the Jquery code "sign in" so it can retrieve data from that API while it's protected with password (authorize)?
Thanks
UPDATE
here is the Jquery Code
$(document).ready(function () {
var showData = $('#show-data');
$.getJSON('url/here', function (data) {
console.log(data);
var items = data.map(function (item) {
return item.id + ': ' + item.firstName + ': ' + item.lastName;
});
showData.empty();
var content = '<li>' + items.join('</li><li>') + '</li>';
var list = $('<ul />').html(content);
showData.append(list);
});
});

Rails w/ Turbolinks window.onbeforeunload

I currently have a Rails application that uses Turbolinks. In this app, I am trying to track the amount of time spent on a specific view. I have looked at countless questions and gone through multiple variations of called window.onbeforeunload, window.beforeunload, window.on('beforeunload')... My current attempt is this:
$(document).ready(function() {
var start = Date.now();
var id = gon.subjId;
var rand_index = gon.randIndex;
var index = gon.index;
console.log('showing article ' + index + ' at index ' + rand_index + ' for ' + id);
$(document).on('turbolinks:before-change', function() {
$.post('/log', {subj_id: id, article: {index: index, rand_index: rand_index, time_spent: Date.now()-start}},
function(response) {
});
})
});
I know that the function using the AJAX request works; however, it is not called. How can I get this function to call when the back button is pressed?

I'm still not sure what the underlying error was but I changed the script to this and works like a charm:
$(document).ready(function() {
var start = Date.now();
var id = gon.subjId;
var rand_index = gon.randIndex;
var index = gon.index;
console.log('showing article ' + index + ' at index ' + rand_index + ' for ' + id);
function logVisit() {
console.log('logging visit');
$.post('/log', {subj_id: id, article: {index: index, rand_index: rand_index, time_spent: Date.now()-start}},
function(response) {
});
document.removeEventListener('turbolinks:before-cache', logVisit);
}
document.addEventListener('turbolinks:before-cache', logVisit);
});

Converting an MVC4 Web API Application to Phonegap Android Application

I have an MVC4 Web API application where i have my Api Controller and Code-First EF5 database and some JavaScript functions for the functionality of my app including my Ajax Calls for my Web Api Service.I did the project on MVC because i was having trouble installing Cordova in VS2012, so i have decided to use Eclipse/Android Phonegap platform.Is there a way where i can call my web api service and be able to retrieve my database data designed EF5(MVC4) in my Android Phonegap application without having to start from the beginning the same thing again.I know phonegap is basically Html(JavaScript and Css) but i am having trouble calling my service using the same HTML markup that i used MVC4.I am a beginner please let me know if what i am doing is possible and if not please do show me the light of how i can go about this. T*his is my Html code*
<script type="text/javascript" charset="utf-8" src="phonegap-2.9.0.js"></script>
<script type="text/javascript" charset="utf-8" src="barcodescanner.js"></script>
<script type="text/javascript" language="javascript" src="http://api.afrigis.co.za/loadjsapi/?key=...&version=2.6">
</script>
<script type="text/javascript" language="javascript">
// Wait for device API libraries to load
//
document.addEventListener("deviceready", onDeviceReady, false);
//initialize watchID Variable
var watchID = null;
// device APIs are available
function onDeviceReady() {
// Throw an error if no update is received every 30 seconds
var options = { timeout: 30000 };
watchID = navigator.geolocation.watchPosition(onSuccess, onError, options);
// onSuccess Geolocation
//
function onSuccess(position) {
var element = document.getElementById('geolocation');
element.innerHTML = 'Latitude: ' + position.coords.latitude + '<br />' +
'Longitude: ' + position.coords.longitude + '<br />' +
'<hr />' + element.innerHTML;
}
// onError Callback receives a PositionError object
//
function onError(error) {
alert('code: ' + error.code + '\n' +
'message: ' + error.message + '\n');
}
}
//declare a global map object
var agmap = null;
// declare zoom control of map
var zoomCtrl = null;
function initAGMap() {
agmap = new AGMap(document.getElementById("MapPanel"));
//TODO: must retrieve coords by device location not hard corded.
agmap.centreAndScale(new AGCoord(-25.7482681540537, 28.225935184269), 5); // zoom level 5 heres
// making zoom controls for map
var ctrlPos = new AGControlPosition(new AGPoint(10, 10), AGAnchor.TOP_LEFT);
zoomCtrl = new AGZoomControl(1);
agmap.addControl(zoomCtrl, ctrlPos);
}
function removeZoomCtrl()
{
zoomCtrl.remove();
}
//function search() {
// var lat = $('#latitude').val();
// var long = $('#longitude').val();
// $.ajax({
// url: "api/Attractions/?longitude=" + long + "&latitude=" + lat,
// type: "GET",
// success: function (data) {
// if (data == null) {
// $('#attractionName').html("No attractions to search");
// }
// else {
// $('#attractionName').html("You should visit " + data.Name);
// displayMap(data.Location.Geography.WellKnownText, data.Name);
// }
// }
// });
//}
//function GetCoordinate() {
//todo: get details from cordova, currently mocking up results
//return { latitude: -25.5, longitude: 28.5 };
}
function ShowCoordinate(coords) {
agmap.centreAndScale(new AGCoord(coords.latitude, coords.longitude), 5); // zoom level 5 here
var coord = new AGCoord(coords.latitude, coords.longitude);
var oMarker = new AGMarker(coord);
agmap.addOverlay(oMarker);
oMarker.show();
//todo: create a list of places found and display with marker on AfriGIS Map.
}
function ScanProduct()
{
//todo retrieve id from cordova as mockup
//This is mockup barcode
//return "1234";
//sample code using cordova barcodescanner plugin
var scanner = cordova.require("cordova/plugin/BarcodeScanner");
scanner.scan(
function (result) {
alert("We got a barcode\n" +
"Result: " + result.text + "\n" +
"Format: " + result.format + "\n" +
"Cancelled: " + result.cancelled);
},
//Callback function if barcodedont exist
function (error) {
alert("Scanning failed: " + error);
});
}
//Function to display Success or error in encoding.
function encode(type, data) {
window.plugins.barcodeScanner.encode(type, data, function(result) {
alert("encode success: " + result);
}, function(error) {
alert("encoding failed: " + error);
});}
function GetProductDetails(barcodeId,coords)
{
//Ajax Call to my web Api service
$.getJSON("api/products/?barcodeId=" + barcodeId + "&latitude=" + coords.latitude + "&longitude=" + coords.longitude)
.done(function (data) {
$('#result').append(data.message)
console.log(data)
var list = $("#result").append('<ul></ul>').find('ul');
$.each(data.results, function (i, item)
{
if (data.results == null) {
$('#result').append(data.message)
}
else {
list.append('<li>ShopName :' + item.retailerName + '</li>');
list.append('<li>Name : ' + item.productName + '</li>');
list.append('<li>Rand :' + item.price + '</li>');
list.append('<li>Distance in Km :' + item.Distance + '</li>');
//Another Solution
//var ul = $("<ul></ul>")
//ul.append("<li> Rand" + data.results.productName + "</li>");
//ul.append("<li> Rand" + data.results.Retailer.Name + "</li>");
//ul.append("<li> Rand" + data.results.price + "</li>");
//ul.append("<li> Rand" + data.results.Distance + "</li>");
//$("#result").append(ul);
}
});
$("#result").append(ul);
});
}
function ShowProductDetails()
{
//todo: display product details
//return productdetails.barcodeId + productdetails.retailerName + ': R' + productdetails.Price + productdetails.Distance;
}
//loading javascript api
$(function () {
initAGMap();
var coord = GetCoordinate();
ShowCoordinate(coord);
var barcodeId = ScanProduct();
var productdetails = GetProductDetails(barcodeId, coord);
ShowProductDetails(productdetails);
});
</script>

It looks like you're on the right track. The obvious error right now is that it's using a relative URL (api/products/?barcodeId=) to call the Web API. Because the HTML is no longer hosted on the same server as the Web API (even though you might be running them both on your local machine still), this won't work anymore. You need to call the service with an absolute URL (for example, http://localhost:8888/api/products/?barcodeId=).
Where is your Web API hosted right now and how are you running the Cordova code? If the Web API is up and running on your local machine and your Cordova app is running on an emulator on the same machine, you should be able to call the service by supplying its full localhost path.
If it still doesn't work, you'll need to somehow debug the code and see what the errors are.

Not able to append data to Div and redirect page

I have a default page with list of items. When I click on those Items I need to dynamically append data to div in Page B and redirect the app to Page B.
I added this div in PageB
''
On Click event I am doing following action in .js file:
'$(document).on('click', '#selectConcept', function (node) {
var ncid = this.textContent.slice(6,25);
$.ajax({
dataType: "json",
url: "http://txv-trmindexer01:8080/CommonTerminologyLeopardSearch/rest/getConceptByNcid/" + ncid,
error: function () {
alert("ERROR");
},
success: function (data) {
window.location.href = 'getfacets.html';
for (var result = 0; result < finalSearchResults.length; result++) {
if (finalSearchResults[result].ncid == ncid) {
$("#selectedConceptitem").empty();
var selectedconcept = "<p>" + "ncid: " + finalSearchResults[result].ncid + "," + "cid: " + finalSearchResults[result].cid + "</p>";
$(selectedconcept).appendTo("#selectedConceptitem");
}
}
} });
});'
I am able to redirect page, but nothing is appended to Div.
Can anyone help me out with this..

I'm not really sure, but I guess the code runs before the new page is loaded. So you could try to wrap the code in a function run at onload event time
window.location.href = 'getfacets.html';
window.onload = function() {
for (var result = 0; result < finalSearchResults.length; result++) {
if (finalSearchResults[result].ncid == ncid) {
$("#selectedConceptitem").empty();
var selectedconcept = "<p>" + "ncid: " + finalSearchResults[result].ncid + "," + "cid: " + finalSearchResults[result].cid + "</p>";
$(selectedconcept).appendTo("#selectedConceptitem");
}
}
}

The problem:
As soon as you set "window.location.href" property the page navigates to your page B and you loose your fetched data.
You have two solutions to the problem:
Use Single Page Application (SPA) application approach wherein you could create a new global scope for your fetched data, which can now be used by page B
Send the ncID as a querystring parameter to page B and and implement the service call and data appending logic on page B

Jquery Html Data Function

I've been developing a web game, with jquery doing some of the work. It was on a server, but I've moved it back to my laptop. Everything seems to work fine, except the most important function, which imports the contents of an html file.
$(".ReportList a").live('click', function(){
var getreportname = $(this).text();
$("#scroller").append("<span>The reportname is " + getreportname + "</span>");
var usersreport = "ReportList_" + User + "";
jQuery.get('Reports/' + getreportname + '.html', function (data) {
$("#" + usersreport).html(data);
$("#" + usersreport + " span").addClass("Py" + User);
updateCount();
});
});
Not sure why it stopped working. Would appreciate any insight.

I didn't need the .get() method to do what I wanted, .html() was good enough if I re-formulated the script.