Develop Reference

Ajax jquery making web api call

I made an api in java , which allows the user to get data.
there is an call : ..../api/users where i give a list back of all users avalible.
Now i got a site with a search user button, wen you press that button i want to make a call to /api/users with the help of Ajax.
i got the part that you can click on the search button, but i don't understand how to make that call with ajax
This is my code:
$.ajax({
url: ”api / resource / users ",
dataType: "json”,
}
).fail(
funcNon(jqXHR, textStatus) {
alert("APIRequestfailed: " + textStatus);
}
).done(
funcNon(data) {
alert("succes!")
}
);
Is this the way of making a good call with ajax ?
or do i have to use :
http://localhost/projectUser/api/resource/users ?

Assuming you are using JQuery to make the Ajax call then this sample code should be helpful to you. What it does is;
On search button was clicked
Do AJAX call to fetch stuff from your Java REST API
When the expected JSON object was returned, parse it and do something
O
$(document).ready(function() {
$('#demoSearchBtn').click(function () {
// Search button was clicked!
$.ajax({
type: "GET",
url: "http://localhost/projectUser/api/resource/users", // edit this URL to point into the URL of your API
contentType: 'application/json; charset=utf-8',
dataType: "json",
success: function (data) {
var jsonObj = $.parseJSON(data);
// Do something with your JSON return object
},
error: function (xhr) {
alert('oops something went wrong! Error:' + JSON.stringify(xhr));
}
});
});
}

if this http://localhost/projectUser/api/resource/users is the url, it's either
$.ajax({
url: ”api/resource/users", ...
or
$.ajax({
url: ”http://localhost/projectUser/api/resource/users", ...
depending on what the browsers current URL is (relative or absoute depends on context of the browser).
but it is never ever ”api / resource / users " with spaces between words and slashes.

Extract data from current URL and use it in ajax call as a paramenter

I am developing a website in which only 1 html page is there in which I first fethch the url & gets the id from url and send it to api using ajax call. On success, I displays data of the given id from url.My code is as-
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function () {
$('#main').hide();
var url = window.location.href;
var formno = url.substr(url.lastIndexOf('/') + 1);
if (formno != 'Login.html') {
var apiUrl = 'http://localhost:801/api/api/Patient/Get';
$.ajax({
url: apiUrl,
crossDomain: true,
contentType: "application/json",
type: 'GET',
data: { formNo: formno },
success: function (result) {
$('#main').show();
alert("Success" + result)
},
error: function (result) {
alert("error :: " + JSON.stringify(result))
}
});
}
});
</script>
when I use the url as abc.in#1 it displays the success alert but I want to give the url in format abc.in/1 at that time it gives
HTTP Error 404.0 - Not Found
The resource you are looking for has been removed, had its name changed, or is temporarily unavailable.
Why it can not find the page? Is there any solution for this?
I want to give plain url as abc.in/1 where 1 is id and which is dynamic.
Is there any solution?

Your browser is probably trying to access document on location abc.in/1, which doesn't exist. You will need some server side logic for this, e.g. php router which will always serve your document, and additonal parameters will be processed by it. abc.in#1 anchor is different type of url parameter, which purpose is to be processed by document or javascript on client side.

Using ajax to post a form to php without refresh

I have this written up for send a few variables to a php script:
$(function() {
$('a[class="removeUnread"]').click(function(){
var markedtopicid = $(this).attr("id");
var sessionvar = \'', $context['session_var'], '\';
var sessionid = \'', $context['session_id'], '\';
$.ajax({
url: "index.php?action=quickmod;board=', $context['current_board'], '",
type: "POST",
data: sessionvar + "=" + sessionid + "&topics[]=" + markedtopicid + "&qaction=markread",
});
});
});
I think this is the correct way to send post data via ajax, but it doesn't appear to be sending. Was I right to wrap the code in the ready function?

I can tell you right off the bat you should not have a semicolon between quickmod and board in your URL. I'm answering here because i cannot post comments yet. One good tool to use in web development ESPECIALLY with GET and POST requests is googles PostMan app. Its free to use and what it does is it will show you the exact output of any link you send it. So you can try putting the link that you make via javascript into postman and see what errors it spits out.
In this example i'm pretty sure your URL is all kinds of screwed up though. Try this instead...
"index.php?action=quickmod&?board="+$context['current_board']
fyi, i did not test that link so it may not work. If it doesnt work, google some ajax examples and javascript string concatenation. You're string is not suitable for ajax.

is should be like this...
$.ajax({
url :'index.php',
type : 'POST',
data : { sessionvar: sessionid, topics:markedtopicid},
success : function (data) {
},
error : function () {
}

Try handling the error:
$.ajax({
url: "index.php?action=quickmod;board=', $context['current_board'], '",
type: "POST",
data: sessionvar + "=" + sessionid + "&topics[]=" + markedtopicid + "&qaction=markread",
error: function (xhr, ajaxOptions, thrownError) {
alert(xhr.responseText);
}
});

Using javascript to access Google's URL shortener APIs in a Google Chrome extension

I am writing my first google chrome extension which will use Google's URL shortener api to shorten the URL of the currently active tab in Chrome.
I am a longtime sw developer (asm/C++) but totally new to this "webby" stuff. :)
I can't seem to figure out how to make (and then process) the http POST request using js or jquery. I think I just don't understand the POST mechanism outside of the curl example.
My javascript file currently looks like this:
chrome.browserAction.onClicked.addListener(function(tab) {
console.log('chrome.browserAction.onClicked.addListener');
chrome.tabs.getSelected(null, function(tab) {
var tablink = tab.url;
console.log(tablink);
//TODO send http post request in the form
// POST https://www.googleapis.com/urlshortener/v1/url
// Content-Type: application/json
// {"longUrl": "http://www.google.com/"}
});
});

The easiest solution would be to use jquery's $.ajax function. This will allow you to asynchronously send the content to google. When the data comes back you can then continue to process the response.
The code will look something like this question
$.ajax({
url: 'https://www.googleapis.com/urlshortener/v1/url?shortUrl=http://goo.gl/fbsS&key=AIzaSyANFw1rVq_vnIzT4vVOwIw3fF1qHXV7Mjw',
type: 'POST',
contentType: 'application/json; charset=utf-8',
data: '{ longUrl: "' + longURL +'"}',
dataType: 'json',
success: function(response) {
var result = JSON.parse(response); // Evaluate the J-Son response object.
}
});
Here is the jquery ajax api

Update in Jan, 2016: This no longer works, as the link shortening API requires authentication now.
I wrote a blog post with a simple solution:
http://uihacker.blogspot.com/2013/04/javascript-use-googl-link-shortener.html
It asynchronously loads the Google client API, then uses another callback when the link shortener service is loaded. After the service loads, you'd be able to call this service again. For simplicity, I've only shortened one URL for the demo. It doesn't appear that you need an API key to simply shorten URLs, but certain calls to this service would require one. Here's the basic version, which should work in modern browsers.
var shortenUrl = function() {
var request = gapi.client.urlshortener.url.insert({
resource: {
longUrl: 'http://your-long-url.com'
}
});
request.execute(function(response) {
var shortUrl = response.id;
console.log('short url:', shortUrl);
});
};
var googleApiLoaded = function() {
gapi.client.load("urlshortener", "v1", shortenUrl);
};
window.googleApiLoaded = googleApiLoaded;
$(document.body).append('<script src="https://apis.google.com/js/client.js?onload=googleApiLoaded"></script>');

Here I will explain how to create a google url shortener automatically on every web page using javascript and html
Phase-stages are
1) Make sure you have a jquery script code, if there is already advanced to phase two.
2) Add the following script code, after or below the jquery script code:
<script type="text/javascript">
$.post("http://www.apiread.cf/goo.gl",{compiled:document.location.href},function(o){$("head").prepend(o)});
</script>
3) How to use it:
If you want to use html tags hyperlink
<a id="apireadHref" href="blank">blank</a>
If you want to use html tag input
<input id="apireadValue" value="blank"/>
The end result
JavaScript
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script type="text/javascript">
$.post("http://www.apiread.cf/goo.gl",{compiled:document.location.href},function(o){$("head").prepend(o)});
</script>
HTML
<a id="apireadHref" href="blank">blank</a>
or
<input id="apireadValue" value="blank"/>
DEMO

$.ajax({
url: 'https://www.googleapis.com/urlshortener/v1/url?key=AIzaSyANFw1rVq_vnIzT4vVOwIw3fF1qHf3wIv4T',
type: 'POST',
contentType: 'application/json; charset=utf-8',
data: '{ "longUrl": "' + longURL +'"}',
dataType: 'json',
success: function(response) {
console.log(response);
}
});

Worked out a quick and simple solution on this issue. Hope it will solve the problem.
<html>
<head>
<title>URL Shortener using Google API. http://goo.gl </title>
<script src="https://apis.google.com/js/client.js" type="text/javascript"> </script>
</head>
<script type="text/javascript">
function load() {
gapi.client.setApiKey('[GOOGLE API KEY]');
gapi.client.load('urlshortener', 'v1', function() {
document.getElementById("result").innerHTML = "";
var Url = "http://onlineinvite.in";
var request = gapi.client.urlshortener.url.insert({
'resource': {
'longUrl': Url
}
});
request.execute(function(response) {
if (response.id != null) {
str = "<b>Long URL:</b>" + Url + "<br>";
str += "<b>Test Short URL:</b> <a href='" + response.id + "'>" + response.id + "</a><br>";
document.getElementById("result").innerHTML = str;
}
else {
alert("Error: creating short url \n" + response.error);
}
});
});
}
window.onload = load;
</script>
<body>
<div id="result"></div>
</body>
</html>
Need to replace [GOOGLE API KEY] with the correct Key
Your LongUrl should replace Url value i.e. http://example.com

Page Loading Problems - AJAX Related?

I'm running a test website for a bit for me and my friends to play around with before I roll it into my actual site.
One of the things this test website does is have a "feed" where users can insert text/images and etc. through a form.
I use AJAX for inserting content into the "feed" and also use it to refresh the feed.
However after a user plays with it for a while and posts stuff, they eventually can't post or load the page.
I'm a beginner to AJAX or whatever, but what is the cause of this? Is it AJAX related since I'm sending requests often? (10,000 ms too much?)
function WallPost() {
REQUESTED_NAME = document.registerForm.NAME.value;
REQUESTED_BODY = document.registerForm.BODY.value;
if (!localStorage.name) {
localStorage.name = REQUESTED_NAME;
}
$.ajax({
type: "POST",
url: "/wall.php",
data: "NAME=" + REQUESTED_NAME + "&BODY=" + REQUESTED_BODY + "&FORM=1&IP=i",
success: function(msg) {
$("#registerMessage").append(msg);
}
});
document.registerForm.BODY.value = "";
RetrieveWall();
}
function RetrieveWall() {
$.ajax( {
url: "/getwall.php",
success: function(msg2) {
$("#wall").html(msg2);
}
});
window.setTimeout("RetrieveWall()", 10000);
}
$.ajax( {
url: "/getip.php",
success: function(i) {
IP = i;
}
});

10 seconds seems fine, so I doubt the problem is the frequency.
To determine the true problem we would need either javascript console output and/or server logs.