Im working on an application who use Angular route service.
I also make a lot of $http get request to load a lot of datas in the background of my application.
But while the data is loading I can't change route I need to wait all data to be loaded to change my route.
Is there any way to prioritize the route request to change pages and still load data in background?
You can try to wrap each $http call in timeout, something like:
$timeout(function() {
$http.get('test.json').success(function() {
});
}, 0);
Related
I have a react application which is making ajax requests for data.
Since adding my components to React Storybook my components do not render data.
Instead of providing default prop types, is it possible to render the actual data being used for my components?
Can I import Axios into storybook and make requests or something along these lines?
Using moxios you can set url capturing regexes to wait for certain requests, and pass back whatever mock data you want to the api calls.
For example:
// Route like /user/{id}/settings/{somesettingname}
moxios.stubRequest(/user\/[0-9a-zA-Z]+\/settings\/[^\/]/, {
response: mockUserSettings,
status: 200,
});
Cross site ajax request with Vue.js 1.0 and Vue Resource. I get the following error: XMLHttpRequest cannot load http://dev.markitondemand.com/MODApis/Api/v2/Lookup/jsonp?input=NFLX&callback=handleResponse. No 'Access-Control-Allow-Origin' header is present on the requested resource.
I have a basic understanding of the problem but not sure how to add a callback function with the request or if that is the best solution for this example. I put in the full request URL here just to make it easier to follow.
new Vue({
el: '#stockList',
data: function() {
return {
query: '',
stocks: []
};
},
ready: function() {
this.getStocks();
},
methods: {
getStocks: function() {
this.$http.get('http://dev.markitondemand.com/MODApis/Api/v2/Lookup/jsonp?input=NFLX&callback=handleResponse',
function(data) {
this.stocks = data;
}
);
}
}
})
I have almost zero understanding of networking, but I was able to get several remote apis to work using:
this.$http.jsonp
instead of
this.$http.get
"No Access-Control-Allow-Origin" header usually is a problem with the server. It means that the server is configured to only allow a person access to the API if the request comes from the same domain as the server. You either need to run the script from the website that you are requesting data from, or you need to change the server config to allow access to all domains.
If you don't have access to the server, and you don't want to run the script in the browser, then I think what you could do is use a headless browser like PhantomJS to navigate to the page, insert a script element into the dom that contains you script, execute the function and then return the data from the API. I could write the code out for you, but to be honest, it's a bit complex. You would have to know how to use node.js, and phantom.js. I've personally only used phantom.js for the Node 'html-pdf' package, but I'm sure with a little bit of reading you could figure out how to do it.
Set your local environment to http instead of https if you have no control over dev.markitondemand.com.
I have this simple page that just needs to show contents that is loaded from an external url (ajax request, response in json format)
I should say I'm a AngularJS newbie.
I've googled a bunch and found different ways of doing this and couldn't manage to determine which is the correct/simple/up-to-date way to achieve this.
My 2 challenges -
Making the AJAX request run on startup (I can load the page before that happens and just load the contents one the ajax request finishes. Maybe show a 'Loading..' indicator)
Doing a ajax request correctly.
Here is my attempt. I know that the ajax request is never made because its not setup correctly.
You are getting into .error function:
http://jsbin.com/oDUsuVA/3/edit
For jsonp your response should be something like:
callback([
{
"title":"License Title 1",
"licenseUrl":"http://cnn.com",
"licenseText": " test"
}]);
Edit:
You can simply do .get() request too, but if you had to use jsonp request interface, you would have to correct response.
A Jsonp request always wraps the logic into a json callback wrapper function.
I just did $http.get instead of your $http.jsonp and it did work for me.
I'm new to backbone.js and I've read other solutions to similar problems but still can't get my example to work. I have a basic rails api that is returning some JSON from the url below and I am trying to access in through a backbone.js front end. Since they are one different servers I think I need to use a 'jsonp' request. I'm currently doing this by overriding the sync function in my backbone collection.
Api url:
http://guarded-wave-4073.herokuapp.com/api/v1/plans.json
sync: function(method, model, options) {
options.timeout = 10000;
options.dataType = 'jsonp';
options.url = 'http://guarded-wave-4073.herokuapp.com/api/v1/plans.json'
return Backbone.sync(method, model, options);
}
To test this I create a new 'plans' collection in my chrome console using "plans = new Plans()" and then "plans.fetch()" to try and get the JSON.
When I call plans.models afterwards I still have an empty array and the object that returns from plans.fetch() doesn't seem to have any json data included.
Any ideas where I'm going wrong?
I have had the same problem before. You should not have to override your sync method.
Taken from Stackoverflow Answer
"The JSONP technique uses a completely different mechanism for issuing HTTP requests to a server and acting on the response. It requires cooperating code in the client page and on the server. The server must have a URL that responds to HTTP "GET" requests with a block of JSON wrapped in a function call. Thus, you can't just do JSONP transactions to any old server; it must be a server that explicitly provides the functionality."
Are you sure your server abides to the above? Test with another compatible jsonp service (Twitter) to see if you receive results?
Have you tried overriding the fetch method as well?
You should add ?callback=? to your api url in order to enable jsonp
Here is my situation:
Im creating a widget that site admins can embed in their site and the data are stored in my server. So the script basically has to make an ajax request to a php file in my server to update the database. Right? Right :)
The ajax request works excellent when i run it in my local server but it does not work when the php file is on my ONLINE server.
This is the code im using:
var url = "http://www.mydomain.net/ajax_php.php";
var params = "com=ins&id=1&mail=mymail#site.net";
http.async = true;
http.open("POST", url, true);
http.onreadystatechange = function() {
if(http.readyState == 4 && http.status == 200) {
//do my things here
alert( http.responseText );
}
}
http.send(params);
In firebug it shows: http://www.mydomain.net/ajax_php.php 200 OK X 600ms.
When i check the ajax responnseText I always get a Status:0
Now my question is: "Can i do cross-domain ajax requests by default? Might this be a cross-domain ajax problem? Since it works when the requested file resides in my local server but DOESN'T work when the requested file is in another server, im thinking ajax requests to another remote server might be denied? Can you help me clear on this?
Thanks..
Cross-domain requests are not directly allowed. However, there is a commonly-used technique called JSONP that will allow you to avoid this restriction through the use of script tags. Basically, you create a callback function with a known name:
function receiveData(data) {
// ...
}
And then your server wraps JSON data in a function call, like this:
receiveData({"the": "data"});
And you "call" the cross-domain server by adding a script tag to your page. jQuery elegantly wraps all of this up in its ajax function.
Another technique that I've had to use at times is cross-document communication through iframes. You can have one window talk to another, even cross-domain, in a restricted manner through postMessage. Note that only recent browsers have this functionality, so that option is not viable in all cases without resorting to hackery.
You're going to need to have your response sent back to your client via a JSONP call.
What you'll need to do is to have your request for data wrapped in a script tag. Your server will respond with your data wrapped in a function call. By downloading the script as an external resource, your browser will execute the script (just like adding a reference to an external JS file like jQuery) and pass the data to a known JS method. Your JS method will then take the data and do whatever you need to do with it.
Lots of steps involved. Using a library like jQuery provides a lot of support for this.
Hope this helps.