I need to call Api using ajax in javascript.
I have used following code to call api
$.ajax({
type: 'GET',
//contentType: "application/json; charset=utf-8",
url: 'http://localhost:51870/api/Home/Get',
dataType:'json',
success: function (data) {
debugger;
alert(data);
},
error: function (error) {
debugger;
alert('error; ' + eval(error));
}
});
and Code for API is
[System.Web.Http.HttpGet]
public JsonResult Get()
{
List<PieChartValue> lstPieChartValue = new List<PieChartValue>();
PieChartValue p1 = new PieChartValue
{
ColumnName = "text",
Value = 100
};
PieChartValue p2 = new PieChartValue
{
ColumnName = "text",
Value = 200
};
lstPieChartValue.Add(p1);
lstPieChartValue.Add(p2);
return new JsonResult(){ Data = lstPieChartValue };
}
I am getting error:
No 'Access-Control-Allow-Origin' header is present on the requested resource
Thanks.
Related
I'm using toast.js in an Asp.Net Core 2.0 application. Right now I have a problem with an ajax call. It seems that all works fine but my ajax doesn't execute success or error function.
The request finish with status 200 in chrome and the response actually show me the data that I return from my method.
The thing that I don't know why happens is that Chrome say that the Initiator is toastr.js instead of my function.
This is just an example of my function in javascript
function callAjax() {
var row = "1";
var json = "{'TwitterId':'" + row + "'}";
var token = $('input[name="__RequestVerificationToken"]').val();
var headers = {};
$.ajax({
type: 'POST',
url: "/Accesos/Index?handler=Example",
contentType: 'application/json',
async: false,
beforeSend: function (xhr) {
xhr.setRequestHeader("XSRF-TOKEN",
$('input:hidden[name="__RequestVerificationToken"]').val());
},
data: JSON.stringify({
Test: 'test'
}),
dataType: "json",
success: function () {
alert("It's works");
},
error: function (xhr) {
alert("There is a problem");
}
});
}
And this is the method in codebehind
[HttpPost]
[ValidateAntiForgeryToken]
public async Task<JsonResult> OnPostExample(string Test)
{
var respuesta = new List<string> { "1", "string1", "string2" };
return new JsonResult(true);
}
This is the result that shows the debug in Chrome
This issue was solved in NToastNotify version 5.0.0
I use Asp.Net WebApi and jQuery.
From page to WebApi i send 'POST' HTTP-Request with object.
$.ajax({
type: "POST",
url: "api/Result",
data: JSON.stringify(makeResultInfo()),//makeResultInfo - function that returns object
contentType: "application/json; charset=utf-8",
dataType: "json",
processData: true,
success: function (data) {
window.location = data;
alert("success");
},
error: function (xhr) {
alert('error');
}
});
WebApi take object correctly and return Excel-file.
[HttpPost]
public HttpResponseMessage Post([FromBody]ResultInfo value)
{
ExcelClass ec = new ExcelClass();
var stream = ec.GetStream(ec.mini_wb);//после теста поправить
// processing the stream.
var result = new HttpResponseMessage(HttpStatusCode.OK)
{
Content = new ByteArrayContent(stream.ToArray())
};
result.Content.Headers.ContentDisposition =
new System.Net.Http.Headers.ContentDispositionHeaderValue("attachment")
{
FileName = "test.xlsx"
};
result.Content.Headers.ContentType =
new MediaTypeHeaderValue("application/octet-stream");
return result;
}
When i make Request to 'api/Result' without parameters - file downloading correctly. But when i send object, response incorrect always and alert always write 'error'.
How i can send object and take file in browser?
In a AJAX request to the server in MVC, how can I pass a list of id's to the controller's action function?
I accept with or without use of Html helpers.
I know MVC's model binder has no problem when it comes to simple types like int, string and bool.
Is it something like I have to use and array instead in the action?
I don't care if I have to use an array or List and even if the strings I int or strings I can always convert them. I just need them on the server.
My List ids gives null at the moment.
Javascript:
var ids= [1,4,5];
// ajax request with ids..
MVC Action:
public ActionResult ShowComputerPackageBuffer(List<int> ids) // ids are null
{
// build model ect..
return PartialView(model);
}
EDIT: Added my AJAX request
$(document).ready(function () {
$('#spanComputerPackagesBuffer').on('click', function () {
var ids = $('#divComputerPackagesBuffer').data('buffer');
console.log('bufferIds: ' + bufferIds);
var data = {
ids: ids
};
var url = getUrlShowComputerPackageBuffer();
loadTable(url, "result", data);
});
});
// AJAX's
function loadTable(url, updateTargetId, data) {
var promise = $.ajax({
url: url,
dataType: "html",
data: data
})
.done(function (result) {
$('#' + updateTargetId).html(result);
})
.fail(function (jqXhr, textStatus, errorThrown) {
var errMsg = textStatus.toUpperCase() + ": " + errorThrown + '. Could not load HTML.';
alert(errMsg);
});
};
// URL's
function getUrlShowComputerPackageBuffer() {
return '#Url.Action("ShowComputerPackageBuffer", "Buffer")';
};
SOLUTIONS: // Thanks to #aherrick comment. I missed the good old "traditional"
$.ajax({
type: "POST",
url: '#Url.Action("ShowComputerPackageBuffer", "Buffer")',
dataType: "json",
traditional: true,
data: {
bufferIds: bufferIds
}
});
Use the traditional parameter and set it to true.
$.ajax({
type: "POST",
url: "/URL",
dataType: "json",
traditional: true,
data: {}
});
Try this one (I've checked it):
$(function () {
var ids = [1, 4, 5];
$.ajax({
type: 'POST',
contentType: 'application/json; charset=utf-8',
url: '#Url.Action("YourAction", "YourController")',
data: JSON.stringify( { ids: ids })
}).done(function () {
});
});
You have to make sure your contentType is application/json and your data is stringified.
public ActionResult SaveSomething(int[] requestData)
//or
public ActionResult SaveSomething(IEnumerable<int> requestData)
Using Action Result you cannot receive JSON object:
Using Controler:
[HttpPost]
[Route( "api/Controller/SaveSomething" )]
public object SaveTimeSheet( int[] requestData )
{
try
{
doSomethingWith( requestData );
return new
{
status = "Ok",
message = "Updated!"
};
}
catch( Exception ex )
{
return new
{
status = "Error",
message = ex.Message
};
}
}
java script:
var ids = [1,4,5];
var baseUrl: 'localhost/yourwebsite'
$.ajax({
url: baseUrl + '/api/Controller/SaveSomething',
type: 'POST',
data: JSON.stringify(ids),
dataType: 'json',
contentType: 'application/json',
error: function (xhr) {
alert('Error: ' + xhr.statusText);
},
success: function (result) {
if (result != undefined) {
window.location.href = window.location.href;
}
},
async: false,
});
I have a variable called sid which handle number of seat. I want to throw sid to TryJSON.aspx method test. then I wanna do manipulate data on method test then throw back the result to this ajax. but I have an error when I just try to throw sid
var sid = jQuery(this).attr('id');
console.log(sid);
$.ajax({
url: "TryJSON.aspx/test",
type: "POST",
data: JSON.stringify({ 'noSeat': sid }),
contentType: "application/json; charset=utf-8",
success: function (response) {
var arr = JSON.parse(response.d);
console.log(arr);
},
error: function () {
alert("sorry, there was a problem!");
console.log("error");
},
complete: function () {
console.log("completed");
}
});
this is my C# code to receive noSeat
[WebMethod]
[ScriptMethod(UseHttpGet = true)]
public static string test(string noSeat)
{
// return noSeat;
//JavaScriptSerializer serializer = new JavaScriptSerializer();
// return new JavaScriptSerializer().Serialize(new { noSeat = noSeat });
}
I have try return only noSeat and also with Javascript serializer. but it has an error. it says
An attempt was made to call the method 'test' using a POST request, which is not allowed.
I have been tried
return "Success !!"
but it doesn't appear on console and still same error.
what's the matter ?
var sid = jQuery(this).attr('id');
console.log(sid);
$.ajax({
url: "TryJSON.aspx/test",
type: "POST",
data: JSON.stringify({ 'noSeat': sid }),
contentType: "application/json; charset=utf-8",
dataType:'json',
success: function (response) {
var arr = JSON.parse(response.d);
console.log(arr);
},
error: function () {
alert("sorry, there was a problem!");
console.log("error");
},
complete: function () {
console.log("completed");
}
});
I'm trying to post JSON data along with 2 ids through a Jquery AJAX post. But I am not able to do it.
Following is my code:
try {
var surveyID= localStorage.getItem("surveyId");
var userDetails = jQuery.parseJSON(localStorage.getItem("userdetails"));
var providerKey = userDetails["ProviderUserKey"];
var dataValue = { "str": StringJson};
var url = APP_URL+"EditSurvey?";
var param = "SurveyId="+surveyID+"&JSONData="+JSON.stringify(dataValue)+"&UserId="+providerKey;
$.ajax({
type: "POST",
contentType: "application/json",
url: url,
data: param,
async:true,
success: function (data) {
alert('sucess');
//}
},
error: function (err) {
alert("Err : " + err.error);
},
});
} catch (error) {
alert(error);
}
I get the following error when I debug this in Safari:
Failed to load resource: the server responded with a status of 500 (Internal Server Error)
and in simulator I get the following error:
Where am I getting wrong? How do I solve this? I have to 3 parameters for post
surveyID
JSON data
userID
Edited:
The webservice is now changed and all 3 params- i.e. 2 ids and one whole json data is passed to the webservice. Still jquery ajax post is not working. See my code below:
var surveyID= localStorage.getItem("surveyId");
var userDetails = jQuery.parseJSON(localStorage.getItem("userdetails"));
var providerKey = userDetails["ProviderUserKey"];
var dataValue = {"surveyID":surveyID, "userID":providerKey, "str": StringJson};
alert(dataValue);
var url = APP_URL+"EditSurvey";
var param = dataValue;
$.ajax({
type: 'POST',
contentType: "application/json",
url: url,
data: dataValue,
success: function (data) {
alert('sucess');
//}
},
error: function (err) {
alert("Err : " + err.text);
},
});
edited to include stringJson:
var StringJson = JSON.stringify(MainJSON);
alert(StringJson);
Check if the final json which is being passed is in the exact format as expected by the server.
Try giving:
contentType: 'application/json',
Accept: 'application/json'
See if it helps.
try this one
formData = {
// all your parameters here
param1: param1,
JSONData: formToJSON(),
UserId: providerKey
}
$.ajax({
type: 'POST',
contentType: 'application/json',
url: url,
dataType: "json",
data: formData,
success: function(data) {
//success handling
},
error: function(data) {
alert("Err : " + err.error);
}
});
function formToJSON() {
return JSON.stringify({
dataValue: dataValue
});
}