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Ajax and how to select nodes via JSON

in Using jQuery • 6 years ago

Hi all, I got an success call back from an API in this way, everthing's fine so far.

$.ajax({
  crossOrigin: true,
  url: url,
  success: function(data) {
      console.log(data.result);
  }
});

The API dont support JSONP, but i using http://www.ajax-cross-origin.com/ and store the proxy at google. Fine, but I can only get data back using data.result

If I use Postman, to me it looks that I should use for example
data.result.ResponseData.Metros[0].DisplayTime to be able to get "Nu" as the image shows.

How should I type the nodes?

If i type for example data.result[0] I got a "{" back - but somehow I cannot select anything after "result", I want to select for example
data.result.ResponseData.Metros[0].GroupOfLine or something in this level

Thanks!

Replies(7)

jakecigar

Re: Ajax and how to select nodes via JSON

6 years ago

If data.result[0] === "{", then data.result is a string that needs to be parsed with JSON.parse.

JΛ̊KE

drwat21

Re: Ajax and how to select nodes via JSON

6 years ago

Great, yes i see, that worked! Thanks alot mr jakecigar.
This stuff worked for me:

$(function(){
    $.ajax({
        crossOrigin: true,
        url: url,
    })
    .done(successFunction)
    .fail(failFunction)

    function successFunction(data){

        var d = JSON.parse(data.result);
        //console.log(d.ResponseData.Metros[0].DisplayTime); 
        var myData = [];
            for(var i = 0; i < 5; ++i){
                var displayTime = d.ResponseData.Metros[i].DisplayTime;
                    myData.push("<div id='depItems'>" + 
                        "<span id='depTime'>" + '' + displayTime + "</span>" +              
                    '</div>');
                $("#realtimedepartures").html(myData.join(''))
        }
    }
    function failFunction(request, textStatus, errorThrown) {console.log('Funkar ej..' + request + textStatus + errorThrown)}

});

jakecigar

Re: Ajax and how to select nodes via JSON

6 years ago

Do you feel comfortable using a third party service? If they go under or change their terms of use, your site stops working.

You can do what they do on your own server in just about any server language.

JΛ̊KE

watusiware

Re: Ajax and how to select nodes via JSON

6 years ago

That site actually give you the trivial PHP source to run on your own server.

As well, it also supplies a Google Apps source file that you could use to host the proxy "in the cloud" if you don't have a PHP site to put their script in.

Page down toward the bottom:

http://www.ajax-cross-origin.com/install.html

I wouldn't suggest using their server.

drwat21

Re: Re: Ajax and how to select nodes via JSON

6 years ago

Ok, I would love to do that. I have access to a web server so I should be able to host it there, but at the moment I have no clue how to do this, guess I can find some information by searching the Internet. Thanks for advices!

watusiware

Re: Ajax and how to select nodes via JSON

6 years ago

It only makes sense to do it with PHP if you already use PHP. Since you say you have no clue how to do it, I'd guess you don't use PHP.

The cool way to do it is in the cloud. Set up a Google developer account. I don't know if Google has some free tier for Google Apps. Amazon does for their AWS Lambda, which is similar to Google Apps.

The instructions for setting it with with Google Apps is the single paragraph at the end of the page!

Google probably won't shut down or go out of business. ;)

(That said, they have many times disappointed developers by starting some service and then deciding they don't want to do it any more and then shutting it down. Very unlikely for Google Apps.)

drwat21

Re: Ajax and how to select nodes via JSON

6 years ago

Hi yes, that's right, I don't know PHP. I manage to do this with Google Apps, that works just fine for my needs. Thanks a lot guys!

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