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  • c# - PubNub JSON serialization code works in example project but not in my project

    - by pilau
    I am making a Winamp plugin with the single function of sending the details of the song being played over HTTP to a webpage. It works like this: Winamp song event triggered - check for new song - publish to webpage using PubNub (C# API). So far I got to the stage where everything works exactly as it is supposed to, except for the PubNub code which doesn't serialize the object I'm passing for publishing into JSON. All I keep getting in the PubNub console is a mere {} - an empty JSON object. A little background on the project structure: I am using Sharpamp which is a custom library that enables making Winamp plugins with C#. I am also using the PubNub C# API. The gen_notifier_cs project is the C++ plugin wrapper created by Sharpamp. notifier_cs is where all my code resides. The two other projects are self explanatory I assume. I have referenced the PubNub API in notifier_cs, and also have referenced Sharpamp in both notifier_cs and PubNub API. So, the objects that need to get serialized are of a class Song as defined in Sharpamp: public class Song { public string Title { get; internal set; } public string Artist { get; internal set; } public string Album { get; internal set; } public string Year { get; internal set; } public bool HasMetadata { get; internal set; } public string Filename { get; internal set; } } So let's say if I have a song object with song data in it, I would go pubnub.publish("winamp_pipe", song); to publish it and PubNub will automatically serialize the data into JSON. But that's just not working in my solution. To test why it wasn't serializing, I copied that class to the example code file in the PubNub API. Visual Studio changed the class to this (notice the public Song() method): public class Song { public Song() { return; } public string Album { get; set; } public string Artist { get; set; } public string Filename { get; set; } public bool HasMetadata { get; set; } public string Title { get; set; } public string Year { get; set; } } On the same example file I initiated a default song object with some values: Song song = new Song(); song.Album = "albumname"; song.Artist = "artistname"; song.HasMetadata = true; song.Title = "songtitle"; song.Year = "2012"; And published it: pubnub.publish("winamp_pipe", song); and it worked! I got the JSON object in the PubNub channel! {"Album":"albumname","Artist":"artistname","Filename":null,"HasMetadata":true,"Title":"songtitle","Year":"2012"} So, I tried replacing the "new" Song class with the original one defined in Sharpamp. I tried adding another class definition in the notifier_cs project but that clashes with the one in Sharpamp which I have to rely on. I have been trying so many things as far as I could come up with. Needless to say none prevailed. Still, all I get is an empty JSON object. I have been pulling out my hair for the last day. I know this post is super long but I appreciate your input nonetheless. Thanks in advance.

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  • How to prevent direct access to my JSON service?

    - by FrankLy
    I have a JSON web service to return home markers to be displayed on my Google Map. Essentially, http://example.com calls the web service to find out the location of all map markers to display like so: http://example.com/json/?zipcode=12345 And it returns a JSON string such as: {"address": "321 Main St, Mountain View, CA, USA", ...} So on my index.html page, I take that JSON string and place the map markers. However, what I don't want to have happen is people calling out to my JSON web service directly. I only want http://example.com/index.html to be able to call my http://example.com/json/ web service ... and not some random dude calling the /json/ directly. Quesiton: how do I prevent direct calling/access to my http://example.com/json/ web service?

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  • Read JSON (text file) into C# application

    - by Bi
    I have a configuration file in the following JSON format: { "key1": "value1", "key2": "value2", "key3": false, "key4": 10, } The user can set/unset the configuration values using a text editor. I however need to read it in my C# application. Whats the best way to do so for JSON? The above keys are not associated with a class. Thanks

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  • JSON undefined in IE7

    - by Joel
    Hey, I am using the following line of JQuery code: $.get('/ajax/buy', {'categoryname':chosenSelected}, function(data) { data = JSON.parse(data); ... However, when running it on IE7 I get error msg "JSON undefined:". How can I use the parser with compatibility to IE7 (and all major browsers)? Thanks in advance, Joel

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  • How should I escape strings in JSON?

    - by Bytecode Ninja
    When creating JSON data manually, how should I escape string fields? Should I use something like Apache Commons Lang's StringEscapeUtilities.escapeHtml, StringEscapeUtilities.escapeXml, or should I use java.net.URLEncoder? The problem is that when I use SEU.escapeHtml, it doesn't escape quotes and when I wrap the whole string in a pair of 's, a malformed JSON will be generated.

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  • Jquery 'permission denied' error for JSON call between HTTP and HTTPS

    - by Murali B
    Hi, I have a login control on my homepage (http://www.xyz.com) which makes a JSON login request over HTTPS (https://www.xyz.com/json.ashx). This seems to work fine in Firefox and IE7. But IE8 gives a 'permission denied' error for jquery.min.js I have verified that this call works fine if its solely over http or https. Is the call considered 'cross-domain' if it is between the http and https sections of the site? How can I resolve this problem? Thanks, Murali

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  • Json Jackson deserialization without inner classes

    - by Eto Demerzel
    Hi everyone, I have a question concerning Json deserialization using Jackson. I would like to deserialize a Json file using a class like this one: (taken from http://wiki.fasterxml.com/JacksonInFiveMinutes) public class User { public enum Gender { MALE, FEMALE }; public static class Name { private String _first, _last; public String getFirst() { return _first; } public String getLast() { return _last; } public void setFirst(String s) { _first = s; } public void setLast(String s) { _last = s; } } private Gender _gender; private Name _name; private boolean _isVerified; private byte[] _userImage; public Name getName() { return _name; } public boolean isVerified() { return _isVerified; } public Gender getGender() { return _gender; } public byte[] getUserImage() { return _userImage; } public void setName(Name n) { _name = n; } public void setVerified(boolean b) { _isVerified = b; } public void setGender(Gender g) { _gender = g; } public void setUserImage(byte[] b) { _userImage = b; } } A Json file can be deserialized using the so called "Full Data Binding" in this way: ObjectMapper mapper = new ObjectMapper(); User user = mapper.readValue(new File("user.json"), User.class); My problem is the usage of the inner class "Name". I would like to do the same thing without using inner classes. The "User" class would became like that: import Name; import Gender; public class User { private Gender _gender; private Name _name; private boolean _isVerified; private byte[] _userImage; public Name getName() { return _name; } public boolean isVerified() { return _isVerified; } public Gender getGender() { return _gender; } public byte[] getUserImage() { return _userImage; } public void setName(Name n) { _name = n; } public void setVerified(boolean b) { _isVerified = b; } public void setGender(Gender g) { _gender = g; } public void setUserImage(byte[] b) { _userImage = b; } } This means to find a way to specify to the mapper all the required classes in order to perform the deserialization. Is this possible? I looked at the documentation but I cannot find any solution. My need comes from the fact that I use the Javassist library to create such classes, and it does not support inner or anonymous classes. Thank you in advance

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  • Chrome Extension - Cross-Origin XMLHttpRequest - Returning HTML/JSON

    - by Tyler
    Hi everyone, I hope you can help me :) I've created a Chrome extension (my first one) and I'm having some difficulty auto-populating a <select> with <option> that are being returned. the default_popup page is index.htm. I have two <select> (listboxes? can't remember the name) boxes. When a user first clicks the extension, it performs a XMLHttpRequest to a php script and get's a list of names from a MySQL database. It returns (onLoad) the list in the form of: <option>blah</option> When a user selects an option from the first listbox/select, it performs another XMLHttpRequest and auto-populates the second listbox/select. Then when a user selects an option from the second listbox it will eventually populate a few details further down the page. I've been testing by just running the index.htm file and seeing if just the code works correctly, which it does. However when trying to view it from the extension, it doesn't work. The onLoad doesn't fill in the first listbox, and selecting an option (one that I typed in the box for testing purposes) from the first listbox doesn't populate the second listbox. I thought maybe it was a permissions error, so I tried adding the domain to the manifest.json file; but I appear to be getting an error in the manifest.json file after doing so. In my default_popup (index.htm) file I have this script for my XMLHttpRequest: <script type="text/javascript"> function getClient(str,type) { if (str=="") { document.getElementById(type).innerHTML=""; return; } if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari xmlhttp=new XMLHttpRequest(); } else {// code for IE6, IE5 xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } xmlhttp.onreadystatechange=function() { if (xmlhttp.readyState==4 && xmlhttp.status==200) { document.getElementById(type).innerHTML=xmlhttp.responseText; } } xmlhttp.open("GET","http://(domain removed)/Extension/getInfo.php?q="+type+"&c="+str,true,"user","pass"); xmlhttp.send(); } </script> This is what my manifest.json file looks like: { "name": "Client Center Lite", "version": "1.0", "description": "blah", "browser_action": { "default_icon": "images/icon_19.png", "default_popup": "index.htm", "default_title": "Client Center Lite" }, "icons":{ "128":"images/icon_128.png" } "permissions": { "http://(domain removed)/" }, } Am I doing this correctly? The point of the extension is to be able to quickly view client details. The extension will only be given to employees locally in a .crx file, and not distributed online. The domain I am accessing through the PHP/MySQL is accessible from the web, but I'm currently using localhost in my mysql_connect string. Do I need to be returning the <option> elements encoded as JSON? If so, I'm completely cluesless as how to do that.

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  • Gridview get image from JSON using AsyncTask

    - by kongkea
    This project I've done with image in my drawable but now I want to get image url from JSON by using Asynctask and display it. and I make php that provide a json string like below. I want to get path of image(url) by using AsyncTask from JSON. I want to use data from json instead of public mThumbId = {...}; {"count":"28","data": [{"id":"1", "first_name":"man", "last_name":"woman", "username":"man", "password":"4f70432e636970de9929bcc6f1b72412", "email":"[email protected]", "url":"http://vulcan.wr.usgs.gov/Imgs/Jpg/MSH/Images/MSH64_aerial_view_st_helens_from_NE_09-64_med.jpg"}, {"id":"2", "first_name":"first", "last_name":"Last Name", "username":"user", "password":"1a1dc91c907325c69271ddf0c944bc72", "email":"[email protected]", "url":"http://www.danheller.com/images/California/Marin/Scenics/bird-view-big.jpg"}, {"id":"3", "first_name":"first", "last_name":"Last Name", "username":"user", "password":"1a1dc91c907325c69271ddf0c944bc72", "email":"0", "url":"http://www.hermes.net.au/bodhi/images/view/large/view_03.jpg"}]} AndroidGridLayoutActivity GridView gridView = (GridView) findViewById(R.id.grid_view); gridView.setAdapter(new ImageAdapter(this)); gridView.setOnItemClickListener(new OnItemClickListener() { public void onItemClick(AdapterView<?> parent, View v, int position, long id) { Intent i = new Intent(getApplicationContext(), FullImageActivity.class); i.putExtra("id", position); startActivity(i); } }); ImageAdapter public class ImageAdapter extends BaseAdapter { private Context mContext; // Keep all Images in array public Integer[] mThumbIds = { R.drawable.pic_1, R.drawable.pic_2, R.drawable.pic_3, R.drawable.pic_4, R.drawable.pic_5, R.drawable.pic_6, R.drawable.pic_7, R.drawable.pic_8, R.drawable.pic_9, R.drawable.pic_10, R.drawable.pic_11, R.drawable.pic_12, R.drawable.pic_13, R.drawable.pic_14, R.drawable.pic_15 }; // Constructor public ImageAdapter(Context c){ mContext = c; } public int getCount() { return mThumbIds.length; } public Object getItem(int position) { return mThumbIds[position]; } public long getItemId(int position) { return 0; } public View getView(int position, View convertView, ViewGroup parent) { ImageView imageView = new ImageView(mContext); imageView.setImageResource(mThumbIds[position]); imageView.setScaleType(ImageView.ScaleType.CENTER_CROP); imageView.setLayoutParams(new GridView.LayoutParams(70, 70)); return imageView; } } FullImageActivity Intent i = getIntent(); int position = i.getExtras().getInt("id"); ImageAdapter imageAdapter = new ImageAdapter(this); ImageView imageView = (ImageView) findViewById(R.id.full_image_view); imageView.setImageResource(imageAdapter.mThumbIds[position]);

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  • How to post json data with extJS

    - by maximus
    Greeings: I'm a bit of a newb with both extJS and json. What is the most painless route to POSTing json data using extJS? I'm not really interested any GUI features, just using the framework to send some sample data.

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  • Use a JSON array with objects with javascript

    - by Fredrik Johansson
    Hi, I have a function that will get a JSON array with objects. In the function I will be able to loop through the array, access a property and use that property. Like this: Variable that I will pass to the function will look like this: [{"id":28,"Title":"Sweden"}, {"id":56,"Title":"USA"}, {"id":89,"Title":"England"}] function test(myJSON) { // maybe parse my the JSON variable? // and then I want to loop through it and access my IDs and my titles } Any suggestions how I can solve it? Regards, Fredrik

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  • python parsing file json

    - by michele
    File json: {"maps":[{"id":"blabla","iscategorical":"0"},{"id":"blabla","iscategorical":"0"}], "masks":["id":"valore"], "om_points":"value", "parameters":["id":"valore"] } I write this script but it only print all the text. json_data=open(file_directory).read() data = json.loads(json_data) pprint(data) How can I parse the file and extract single values? Thanks in advance.

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  • Convert JSON structure

    - by Scobal
    I have a set of data in one JSON structure: [[task1, 10, 99], [task2, 10, 99], [task3, 10, 99], [task1, 11, 99], [task2, 11, 99], [task3, 11, 99]] and need to convert it to another JSON structure: [{ label: "task1", data: [[10, 99], [11, 99]] }, { label: "task2", data: [[10, 99], [11, 99]] }, { label: "task3", data: [[10, 99], [11, 99]] }] What's the best way to do this with javascript/java?

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  • Choosing between JSON and XML

    - by Midhat
    Previously I used XML soap for data exchange in my web services, But switched to json for another project. Now I cant seem to find a reason to go back to XML, primarily because of the response size difference for large objects. In what case would you need to use XML over json for web service response

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  • How to decode JSON (varying number of elements, varying keys) using Jquery

    - by Obay
    My JSON looks like this: { "[email protected]":"Person1", "[email protected]":"Person65", "[email protected]":"Person24" } It's returned in various number of elements, and various keys. How do I traverse the data if my code is like this: $.post("includes/ajax.php", { group_id : $('#group').val() }, function(data) { //how do i traverse data here? }, "json"); Any help will be appreciated :) Thanks!

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  • .NET JSON parser comparison

    - by On Freund
    I've been looking into several JSON parsers for .NET (LitJSON, JsonExSerializer and JSON.NET), and was wondering if anyone has any experience with them and can shed some light on the differences and the pros and cons for each of them.

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  • Coercing Json Serializer into producing a particular datetime format (yyyy-mm-ddThh:mm:ss.msmsmsZ)

    - by Chris McCall
    MyClass theSession = new MyClass() { accountId = 12345, timeStamp = DateTime.Now, userType = "theUserType" }; System.Web.Script.Serialization.JavaScriptSerializer Json = new System.Web.Script.Serialization.JavaScriptSerializer(); Response.Write(Json.Serialize(theSession)); Produces: {"accountId":12345,"timeStamp":"\/Date(1268420981135)\/","userType":"theUserType"} How can I present the date as: "timestamp":"2010-02-15T23:53:35.963Z" ?

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  • Using JSON Data to Populate a Google Map with Database Objects

    - by MikeH
    I'm revising this question after reading the resources mentioned in the original answers and working through implementing it. I'm using the google maps api to integrate a map into my Rails site. I have a markets model with the following columns: ID, name, address, lat, lng. On my markets/index view, I want to populate a map with all the markets in my markets table. I'm trying to output @markets as json data, and that's where I'm running into problems. I have the basic map displaying, but right now it's just a blank map. I'm following the tutorials very closely, but I can't get the markers to generate dynamically from the json. Any help is much appreciated! Here's my setup: Markets Controller: def index @markets = Market.filter_city(params[:filter]) respond_to do |format| format.html # index.html.erb format.json { render :json => @market} format.xml { render :xml => @market } end end Markets/index view: <head> <script type="text/javascript" src="http://www.google.com/jsapi?key=GOOGLE KEY REDACTED, BUT IT'S THERE" > </script> <script type="text/javascript"> var markets = <%= @markets.to_json %>; </script> <script type="text/javascript" charset="utf-8"> google.load("maps", "2.x"); google.load("jquery", "1.3.2"); </script> </head> <body> <div id="map" style="width:400px; height:300px;"></div> </body> Public/javascripts/application.js: function initialize() { if (GBrowserIsCompatible() && typeof markets != 'undefined') { var map = new GMap2(document.getElementById("map")); map.setCenter(new GLatLng(40.7371, -73.9903), 13); map.addControl(new GLargeMapControl()); function createMarker(latlng, market) { var marker = new GMarker(latlng); var html="<strong>"+market.name+"</strong><br />"+market.address; GEvent.addListener(marker,"click", function() { map.openInfoWindowHtml(latlng, html); }); return marker; } var bounds = new GLatLngBounds; for (var i = 0; i < markets.length; i++) { var latlng=new GLatLng(markets[i].lat,markets[i].lng) bounds.extend(latlng); map.addOverlay(createMarker(latlng, markets[i])); } } } window.onload=initialize; window.onunload=GUnload;

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  • Addin to Visual Studio for visualizing a selected json string in the editor

    - by Larsi
    Hi! I've got a lot of xml files, and embedded in some elements there are json serialized objects. They are quite difficult to read and modify. So question is: Are there any Visual Studio addins availible that can take selected json-text in the editor, and visualize it (and maybe even allow for editing)? if not, if I must build it - are there any good starting points or samples availible? (making a right-click command availible when text is selected, and them showing a popup) Regards Larsi

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  • Edit JSON-Parser to parse geoJSON?

    - by rdesign
    Hey, I want to use geoJSON-formatted Data in my iPhone app. THere is a JSON parser but no geoJason parser. Anyone can please help me? How do I have to edit the JSON parser to get geoJSON parsing successful? Is there any geoJson parser for Objective-C out there? Thanks a lot.

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