Develop Reference

AngularJs http request concats my data into a JSON key

Sometimes a behavior is so bizarre that I don't even know how to begin to google it. I'm fairly new at Angular, and I am trying to send POST data to my node server from the client. Here is the controller on the client side:
var app = angular.module("groomer", []);
app.controller("gCtrl", function($scope, $http) {
$http.defaults.headers.post["Content-Type"] = "application/x-www-form-urlencoded";
$scope.send = function() {
$http({
method : "POST",
url : "/gUpdate",
data: {
gName:$scope.gName,
gPhone:$scope.gPhone,
gWebsite:$scope.gWebsite,
gEmail:$scope.gEmail,
gCustAcct:$scope.gCustAcct,
gAddress:$scope.gAddress,
gNotes:$scope.gNotes
}
}).then(function success(response) {
alert(console.log('Success!'));
}, function error(response) {
alert(console.log('Booooooo'));
});
};
});
What I naively imagine ought to show up at the server is:
req.body = {
gName:'a',
gPhone:'b',
gWebsite:'c',
gEmail:'d',
gCustAcct:'e',
gAddress:'f',
gNotes:'g'
}
But things get weird. What actually shows up at the server as the request body is:
{"{\"gName\":\"a\",\"gPhone\":\"b\",\"gWebsite\":\"c\",\"gEmail\":\"d\",\"gCustAcct\":\"e\",\"gAddress\":\"f\",\"gNotes\":\"g\"}":""}
In case it takes you a second to see what's happening here, that's all of my JSON keys and data in an object, double-quoted, escaped, concatenated as a string, and passed to the server inside an object as a JSON key corresponding to an empty value.
//so
var lifeMakesSense = {gName:'a',gPhone:'b',gWebsite:'c',gEmail:'d',gCustAcct:'e',gAddress:'f',gNotes:'g'}
//becomes
var waitNo = "{\"gName\":\"a\",\"gPhone\":\"b\",\"gWebsite\":\"c\",\"gEmail\":\"d\",\"gCustAcct\":\"e\",\"gAddress\":\"f\",\"gNotes\":\"g\"}"
//then
var whatEven = {waitNo:""} // nailed it
Thoughts?

Writing specific value from database to HTML via AJAX/jQuery

First time question, hoping for some advice:
Code on webpage:
<form id="inbound" action="javascript:validateinbound();">
<input type="submit" value="Go!" id="inbound">
<script>
function validateinbound() {
$('#inbound:input').each(function () {
var iv = $(this).val();
$('#response').hide();
$('#mydiv').fadeIn(1200);
$('#mydiv').delay(1200).fadeOut(600);
$(function () {
$.ajax( {
url: 'validateinbound.php',
data: "variable="+iv,
dataType: 'json',
success: function(data) {
var response = JSON.stringify(data);
$('#response').delay(3600).fadeIn(600);
$('#response').append("<p>Answer: </p>"+response);
}
});
});
});
};
</script>
</form>
This returns a string that I would like to work with that looks like this:
Answer:
[{"id":"1","answer":"Pull logging","question_id":"5","feature_id":"1","answer_id":"9"}]
Ideally what I would like to do is only select the 'value' to the maxmail_answer 'key' (hopefully those are the right terms?) to the webpage instead. Right now there is only one value but there will be more in the future so something that could parse this string for a specific key and only output those values.
Visually I would see:
Answer: Pull logging ( and then another Answer: for each value I pull out )
First time ever using this site and these languages so total noob and would appreciate some guidance.
Thanks!

You do not to stringify the JSON response, you can get the value of the key you want using the object notation . as follows:
function validateinbound() {
$('#inbound:input').each(function () {
var iv = $(this).val();
$('#response').hide();
$('#mydiv').fadeIn(1200);
$('#mydiv').delay(1200).fadeOut(600);
$(function () {
$.ajax( {
url: 'validateinbound.php',
data: "variable="+iv,
dataType: 'json',
success: function(data) {
//var response = JSON.stringify(data); // no need for this line
$('#response').delay(3600).fadeIn(600);
// catch the answer here
// your result returns within an array so you need to catch the first index
$('#response').append("<p>Answer: </p>"+response[0].answer);
}
});
});
});
};
Besides, ids are unique, you can only access a single element via id selector #, you do not need a .each

What you are receiving from your server is an array of objects in the JSON format. The sample that you have put has the length of "1" and therefore, if want to reach the "id" of the first array, it would be like this:
// var response = JSON.stringify(data); (// don't stringify it!
$('#response').delay(3600).fadeIn(600);
$('#response').append("<p>Answer: </p>"+data[0].id);

You need here a loop to go through your array of results and display each result
success: function(data) {
var response = JSON.stringify(data);
$('#response').delay(3600).fadeIn(600);
$.each(response,function(index,value){//the each loop
$('#response').append("<p>Answer: </p>"+value.answer);//get the answer using . notation
});
}

Json.stringify() returns your javascript object as json data, but i think in your case your response is a json data which you need to manipulate. Json.parse() does this for you and you can access your answer as a property of the javascript object.
success: function(data) {
var response = JSON.parse(data);
$('#response').delay(3600).fadeIn(600);
$('#response').append("<p>Answer: </p>"+response[0].answer);
}
if your json data has multiple result and you need to work through all of them use a loop.
$.each(response,function(index, object){
var response = JSON.parse(data);
$('#response').delay(3600).fadeIn(600);
$('#response').append("<p>Answer: </p>"+object.answer);
});

First of all. Thank you to everyone who commented on this to help me get started in the right direction. I was able to get what I needed working!! Here is the solution:
<form id="inbound" action="javascript:validateinbound();">
<input type="submit" value="Go!" id="inbound">
<script>
function validateinbound() {
$('#controlpanel:input').each(function () {
var iv = $(this).val();
$('#response').html("");
$('#response').hide();
$('#mydiv').fadeIn(1200);
$('#mydiv').delay(1200).fadeOut(600);
$(function () {
$.ajax( {
url: 'validateinbound.php',
data: "variable="+iv,
dataType: 'json',
success: function(data) {
var newdata = JSON.stringify(data);
var response = JSON.parse(newdata);
$('#response').delay(3600).fadeIn(600);
$.each(response, function(array, object) {
$('#response').append("<p>Answer: </p>"+object.answer);
});
}
});
});
});
};
</script>
</form>
I needed to parse the data correctly. So I used JSON.stringify to get the data into a string that JSON.parse could use to manipulate the data. But function(index,object) wouldn't work because my output was not an index, but an array. So when changing to function(array,object) this allowed me to get my data just the way that I needed.
Again thanks to everyone for their help!

Not Able to receive data from api server( with public ip) using ngReouce

I know this question in naive, but i stuck and new to angular. I search enough but not able to comeup with solution.
var app=angular.module('myApp',['ngResource']);
app.controller('myCtrl',['$scope','$resource',function ($scope,$resource) {
// body...
var data= $resource('http://ip/category/something',{"p1":76,"p3":9}, { charge: { method: 'POST' } });
console.log(data);
}]);
I am not able to fetch the data from the server and it return a function.
I need explanation if it is possible.

the problem you have is that the $resource service isnt a function that returns data from a request, it returns a $resource object, that has predefined methods to make those requests.
heres how you should do it to get what your looking for
var app=angular.module('myApp',['ngResource']);
app.controller('myCtrl',['$scope','$resource','$q',function($scope,$resource,$q) {
// body...
var data,
dataResource = $resource('http://ip/category/something',{"p1":76,"p3":9}, { charge: { method: 'POST' } });
data = dataResource.get();
$q.when(data.$promise).then(function(){
console.log(data);
});
}])
```
or something like that.

pass collection of objects through http post in angular js

I have pass a collection of objects through http post in angular js.
The code is as follows:
$scope.selectedContent = function () {
var contents = $filter('filter')($scope.data.ContentId, { Selected: true }); // I could able to get all the selected objects here, No problem with it
var jsonData = angular.toJson(contents); //It is not able to convert to Json if there are more than 5 records
var promise = $http.post('/webapi/cmsApi/CmsPublishApprovedContent?jsonData=' + jsonData, {});
promise.success(function () {
window.location.reload();
});
[ReferrerFilterAttribute]
[HttpPost]
[System.Web.Http.ActionName("CmsPublishApprovedContent")]
public void CmsPublishApprovedContent(string jsonData)
{
var contents = JsonConvert.DeserializeObject<List<ContentNodeInWorkFlow>>(jsonData);
foreach (var content in contents)
{
_contentService.PublishContent(content.ContentId, userId);
}
}
}
The above code works fine if there are 5 records or less. If there are more records, I could able to get all the selected record
objects in the variable 'contents'. But the problem is occuring when converting to Json for all those objects. I
have about 500 records to pass through. How can do I it?
There is no specific reason to convert to JSON data. I just need to extract the ids of all the selected items. I have modified the above code as below:
$scope.selectedContent = function () {
var contents = $filter('filter')($scope.data, { Selected: true });
var abc = [];
angular.forEach(contents, function(content)
{
abc.push(content.ContentId); // got all the ids in the array now
});
var promise = $http.post('/webapi/cmsApi/CmsPublishApprovedContent' ,{contents : abc});
promise.success(function () {
window.location.reload();
});
}
I have just took an array and pushed all the content ids into it. I could able to see all the ids in the array now. I tried to pass the array as above.
How to retrieve those array in the code behind.
[ReferrerFilterAttribute]
[HttpPost]
[System.Web.Http.ActionName("CmsPublishApprovedContent")]
public void CmsPublishApprovedContent(int[] abc)
{}
I do not see any values obtained under int[] abc. What will be the datatype for the parameter in the method call above.

You need second argument of $http.post method. You have to send such data by POST requests, not in query of url. You can put some data into body of the post request.
You need this:
var postBodyWithHugeAmountOFData = {data: [1,2,3,4,5...500]};
$http.post(url, postBodyWithHugeAmountOFData).success(function () {});
Also, you must be ready to handle this request in your backend.

is there any specific reason u want to pass this data as a JSON?.
if u r using Web API in that case u can pass the object as it is but only make sure that collection in web API method contains all the property in javascript collection

Thank you for all your posts. It's working fine without converting to Json. The code is as below.
$scope.selectedContent = function () {
var contents = $filter('filter')($scope.data, { Selected: true });
var promise = $http.post('/webapi/cmsApi/CmsPublishApprovedContent' ,contents);
promise.success(function () {
window.location.reload();
});
}
and the signature would be
public void CmsPublishApprovedContent(List<ContentNodeInWorkFlow> abc)
{
}

ngResource retrive unique ID from POST response after $save()

So I have a Resource defined as follows:
angular.module('questionService', ['ngResource'])
.factory('QuestionService', function($http, $resource) {
var QuestionService = $resource('/api/questions/:key', {}, {
query: {
method:'GET',
isArray:true,
},
save: {
method: 'POST',
}
});
return QuestionService
});
And later on I take some form input and do the following
var newQ = {
txt: $scope.addTxt
};
QuestionService.save(newQ)
The server responds to the POST request both by reissuing the JSON for the object and setting the location header with the new unique ID. The problem is that Angular is not saving that returned JSON or the location header into the object and it is not getting set with the ID from the server for future operations. I've tried a number of things such as:
transformResponse: function(data, headersGetter) {
locationHeader = headersGetter().location;
key = locationHeader.split('/').slice(-1)[0];
data.key = key;
return data;
}
However the returned data item doesn't seem to be getting used. Am I missing something? This seems like a pretty common use case for interacting with a REST api.
Thanks!

You need to have a success handler to assign the new id to newQ manually:
QuestionService.save(newQ, function(data) {
newQ.id = data.id;
});
But there is a better to achieve the same. Because your QuestionService is a resource class object, you can instantiate your newQ like this:
var newQ = new QuestionService({text: $scope.addTxt});
Then, call $save() of newQ:
newQ.$save();
Now newQ should have the new id returned by the server.

I have Asp.Net server with WebApi2 running, i use Ok(number) to return content, and it return for example '6' as result. once it return, the angular show an object containing promise and state, and prototypes and a deep repeated hierarchy, but no value, no '6'.
So i went to see where the data goes, for seeing where the data is i define a transform, and i see awo the data, but it's not a json...
later i change it to following, and now i have a obj in my success function, which has sub property called 'returnValue' (as i defined), and this object hold my value.
transformResponse: function(data, header){
var obj={};
obj.returnValue=angular.fromJson(data);
return obj;
},