I am facing problem when I am posting a JSON data to the server using Ajax call in jQuery the function does not enter success mode. When I post using the POSTER Plugin of Firefox it gets posted successfully. Sharing the code snippet and screenshot of the same:
function showSubscribeContent()
{
alert("*1*------- SUB CLICKED");
var myJSONData = '{"data":{"mode" : "subscribe","technologyareas":[1],"assettypes":["podcast","documents"]}}';
alert("*2*------- POSTING--------->"+myJSONData);
$('#subscribePage').html('<h1>POSTING...</h1>');
$.ajax({
type: 'POST',
url: 'https://tt.s2.acc.com/tt/subscribe-service/uid=sagar_mate',
data: myJSONData,
dataType: 'application/xml',
success: function(data) {
alert("*3*------- POSTED SUCCESSFULLY TO THE SERVER");
$('#subscribePage').html('<h1>POSTED</h1>');
} // Success Function
}); // Ajax Call
}
I am getting alert number 1 and 2 but not 3.
Also when I post using POSTER plugin of Firefox, it gets posted easily.
The Response is success.
I am unable to post the same data using AJAX call.
Thanks,
Ankit
Unless and until the URL in your AJAX call is of the same Domain, I don't think it will get posted successfully. POSTER plugin of Firefox doesn't put any such restriction on the domain, but browser will put this restriction on the application.
Try checking in the error: function(){alert(4);}
to see if it reaches the error handler atleast
Please clearify what you want, when using POSTER Plugin of Firefox you have specified datatype as json where as when using ajax you are using xml.
If you what to post data as JSON use JSON.stringify which accepts JSON object and convert it to string.
Try with this code
function showSubscribeContent()
{
alert("*1*------- SUB CLICKED");
var myJSONData = {"data":{"mode" : "subscribe","technologyareas":[1],"assettypes":["podcast","documents"]}};
alert("*2*------- POSTING--------->"+myJSONData);
$('#subscribePage').html('<h1>POSTING...</h1>');
$.ajax({
type: 'POST',
url: 'https://tt.s2.acc.com/tt/subscribe-service/uid=sagar_mate',
data: myJSONData,
dataType: 'application/json',
success: function(data) {
alert("*3*------- POSTED SUCCESSFULLY TO THE SERVER");
$('#subscribePage').html('<h1>POSTED</h1>');
} // Success Function
}); // Ajax Call
}
Here I have changed the following lines
Converted myJSONData to a JSON object from string
var myJSONData = {"data":{"mode" : "subscribe","technologyareas":[1],"assettypes":["podcast","documents"]}};
Note: try with the string(the way you were doing) if this is not working for you
Changed datatyle to JSON
dataType: 'application/json',
Adding a header in beforeSend Function worked fine for me. Security reasons of CORS.
Related
I am using the following JavaScript function to fetch the data using ajax call
function findName() {
var name = "Jhon";
$.ajax({
method: "POST",
url: "oc-content/themes/bender/ajax-test.php",
data: { name : name },
success: function (data) {
alert(data);
},
})
}
It calls the following php file and works fine.
http://127.0.0.1/osclass/oc-content/themes/bender/ajax-test.php
But when I enable SEO friendly Permalinks in my CMS current page URL is appended in start of link and I get the following error in Chrome Console.
GET http://127.0.0.1/osclass/fashion-beauty/oc-content/themes/bender/ajax-test.php?name=Jhon 404 (Not Found)
Anybody tell me how to solve this issue?
The url you've provided in the ajax call is document relative. When you changed the server's url generation scheme, you also caused the url pointed at by the ajax call to change.
Adjust the ajax url, changing:
url: "oc-content/themes/bender/ajax-test.php",
To:
url: "/osclass/oc-content/themes/bender/ajax-test.php",
Why don't you make the URL server-relative? Something like this:
function findName() {
var name = "Jhon";
$.ajax({
method: "POST",
url: "/osclass/oc-content/themes/bender/ajax-test.php",
data: { name : name },
success: function (data) {
alert(data);
},
})
}
As you have not posted the php code. I would mention that any url directly navigated through addressbar of browser causes in the GET request and i can see you have a POST request in the ajax, so, it can't work.
Workaround would be to use $_REQUEST super globals at php end. $_REQUEST would work for $_GET/$_POST requests.
I am new to angular, and I'm trying to make a call to a Rest API and get its response. My issue is that my JavaScript keeps getting stuck on the Ajax call. I'm not sure if it's the data I am sending or the syntax of the Ajax call. I tried to alert 'Hello world' and that worked, then I alerted the JSON array and that was formatted correctly, but when I do the Ajax post, I don't get any response at all.
Any insight would be nice, thank you.
test.html
<button onclick="myFunction()">Post it</button>
test.js
function myFunction() {
var postData = [{"logintype":"1","user":"Administrator","password":"12345","controlid":"999","host":"192.168.2.164"}
];
$.ajax({
url: '192.168.2.164/isapi/rip.dll/rest/session',
type: 'POST',
contentType: 'application/json',
data: JSON.stringify( postData ),
success: function(){
alert('hello');
},
error: function(){
alert('error');
}
});
};
You have specified a relative URL, where I think you intended to specify an absolute URL. If the current page URL is http://localhost/myapp/, and you request 192.168.2.164/isapi/rip.dll/rest/session, that URL is resolved as http://localhost/myapp/192.168.2.164/isapi/rip.dll/rest/session.
If 192.168.2.164 is the ip address of the server you are trying to hit (and not a directory relative to your current path on your server), you will need to add // to the beginning of the URL to make it absolute (well, schema-relative at least):
$.ajax({
url: '//192.168.2.164/isapi/rip.dll/rest/session',
type: 'POST',
contentType: 'application/json',
data: JSON.stringify( postData ),
success: function(){
alert('hello');
},
error: function(){
alert('error');
}
});
Your issue has nothing to do with angular. What I will refer you to is the angular docs description of how to do a POST request and a small example of the syntax taken from the docs.
Learn to use $http or something similar if you want to develop with angular. https://docs.angularjs.org/api/ng/service/$http
Small example:
// Simple POST request example (passing data) :
$http.post('/someUrl', {msg:'hello word!'}).
then(function(response) {
// this callback will be called asynchronously
// when the response is available
}, function(response) {
// called asynchronously if an error occurs
// or server returns response with an error status.
});
I create an account with yaler, to comunicate with my arduino yun. It works fine, and i'm able to switch on and off my leds.
Then i created a web page, with a button that calls an ajax function with GET method to yaler (yaler web server accept REST style on the URL)
$.ajax({
url: "http://RELAY_DOMAIN.try.yaler.net/arduino/digital/13/1",
dataType: "json",
success: function(msg){
var jsonStr = msg;
},
error: function(err){
alert(err.responseText);
}
});
This code seem to work fine, infact the led switches off and on, but i expect a json response in success function (msg) like this:
{
"command":"digital",
"pin":13,
"value":1,
"action":"write"
}
But i get an error (error function). I also tried to alert the err.responseText, but it is undefined....
How could i solve the issue? Any suggestions???
Thanks in advance....
If the Web page containing the above Ajax request is served from a different origin, you'll have to work around the same origin policy of your Web browser.
There are two ways to do this (based on http://forum.arduino.cc/index.php?topic=304804):
CORS, i.e. adding the header Access-Control-Allow-Origin: * to the Yun Web service
JSONP, i.e. getting the Yun to serve an additional JS function if requested by the Ajax call with a query parameter ?callback=?
CORS can probably be configured in the OpenWRT part of the Yun, while JSONP could be added to the Brige.ino code (which you seem to be using).
I had the same problem. I used JSONP to solve it. JSONP is JSON with padding. Basically means you send the JSON data with a sort of wrapper.
Instead of just the data you have to send a Java Script function and this is allowed by the internet.
So instead of your response being :
{"command":"digital","pin":13,"value":0,"action":"write"}
It should be:
showResult({command:"analog",pin:13,value:0,action:"write"});
I changed the yunYaler.ino to do this.
So for the html :
var url = 'http://try.yaler.net/realy-domain/analog/13/210';
$.ajax({
type: 'GET',
url: url,
async: false,
jsonpCallback: 'showResult',
contentType: "application/json",
dataType: 'jsonp',
success: function(json) {
console.dir(json.action);
},
error: function(e) {
console.log(e.message);
}
});
};
function showResult(show)
{
var str = "command = "+show.command;// you can do the others the same way.
alert (str);
}
My JSON is wrapped with a showResult() so its made JSONP and its the function I called in the callback.
Hope this helps. If CORS worked for you. Could you please put up how it worked here.
I have the following javascript:
jQuery(document).ready( function($) {
var id = "123";
var api = "example.com:8999/".concat(id)
$.ajax({
url : api,
type: 'GET',
dataType: 'jsonp',
// jsonpCallback: "localcallback",
success: function (data) { alert('success'); }
})
});
I can see the response in chrome dev tools, but the alert isn't getting called. Ultimately I need to work with this response to set the value of a div.
Image of chrome tools:
Thanks
EDIT: Put 'POST', was using 'GET', still not working. Also, I think I'd prefer "mom and pop" json, but due to CORS and the fact I'm not good with the web and am just trying to hack this together.
Your server is not returning JSONP. It's returning plain JSON. If you specify JSONP, then the server must explicitly create a JSONP formatted response or the ajax response will not be received and processed properly.
FYI, a JSONP request is sent via a script tag (that's how it gets around the same-origin limitation for cross domain requests) and the response has to be formatted as a script that calls a function and passed the requested data to that function. You can read about how JSONP works here.
Just make your ajax call without specifying the 'dataType' attribute, then control should come back to your success callback if your ajax call completes successfully.
FYI: jQuery will try to find the response data type based on the MIME type of that response.
Example:
$( function() {
$.ajax({
url :"http://example.com:8999/123",
type: 'GET',
success: function (data) {
console.log(data); // Prints the response on console
alert('success');
}
})
});
If you want to make this call only with JSONP then it would be better to share the reason with us, so that we can suggest a better solution if possible.
I am currently developing a Ruby on rails 3 application.
My server controller function render a json object as response:
class DaysController < BaseController
...
def the_days
...
render :json => days
end
end
In my javascript,I use the following code to get json response from server( that's from the_day function in controller)
$.getJSON(
url,
{emp_id: emp_id},
function(data) {
var result = data.response;
alert(result)
alert(data)
},
"json"
);
I use firefox browswer and checked with Firebug, in Firebug Net->XHR, I see the Get request is successful, and the response "days" is there. That's both request and response are successful.
But I did not see the two alert window defined in the above $.getJSON function, why? Why I can not get the response "days" in $.getJSON function??
-----------------Edited------------------
I edited my code to this one:
$.ajax({
url: myURL,
type: 'GET',
data: {
emp_id: emp_id
},
dataType: "json",
success: function(data) {
alert("hi");
alert(data)
}
});
When I run this code, the browser is stuck at success: function(data)
If data is coming back null, but the response was otherwise successful, I'd say that you're sending the request in a manner that violates the Same Origin Policy.
The request needs to be sent to the same host/port/protocol that served the original page.
If this is only an issue in your development environment, you can test in Chrome by launching it from a Terminal application with --disable-web-security.
EDIT: Try changing the parameter name from data to something else, like dat or whatever.
Then try an alert:
alert( dat );
I've heard of some browsers having trouble with the data parameter when you utilize the data property of an AJAX call.
I'm guessing that the problem is that data does not have a response property. Try alerting just the data variable. It should be the days object itself.
I wish I could just leave a comment but I guess I don't have access to that yet.
Anyway, I'd start with something even more basic. Add some text alerts just to make sure you're actually making it to where you think you are. ie...
$.getJSON(
url,
{emp_id: emp_id},
function(data) {
alert('hi') // add this
var result = data.response;
alert('bye') // add maybe even this
alert(result)
alert(data)
},
"json"
);
Sometimes when I'm debugging I find that even my most basic assumptions are wrong.
Edit: here's some sample code from working code I recently implemented
$.ajax({
url: 'users/check_username',
type: 'GET',
data: {
username: username
},
dataType: "json",
success: function(user_exists) {
alert(user_exists) // CHANGE THIS PART
}
});
It sounds like you are not sending the correct header in your ruby application. Firebug should report the response Content Type as application/json because that is what jquery is expecting it to be.
You could try changing the datatype in your ajax call to html to see if your alerts work with that, but that doesn't really help with the json parsing.
ALL, finally, I figured out the root cause. The reason is simply because of "Invalid json data" returned in server. That's in rails controller function 'def the_days':
render :json => days
should be modified to
render :json => days.to_json
Then, everything works smoothly:) Thank you all anyhow!