I'm horribly sorry if there is a post for this, I tried to search but didn't find a answer.
Problem:
I'm calling a web service and receiving not so well formed JSON data from a Dynamics Nav service:
JSON:
"[{\"type\":\"2\",\"number\":\"VHT3866\",\"location\":\"Delta\",\"destinationNo\":\"\",\"contactName\":\"Jesus\",\"shipToName\":\"Lord jesus\",\"highPriority\":\"false\",\"hasComment\":\"true\",\"assignedTo\":\"\",\"source\":\"\"},{\"type\":\"2\",\"number\":\"VHT3866\",\"location\":\"Delta\",\"destinationNo\":\"\",\"contactName\":\"Jesus\",\"shipToName\":\"Lord jesus\",\"highPriority\":\"false\",\"hasComment\":\"true\",\"assignedTo\":\"\",\"source\":\"\"}]"
I then take this JSON and use angular.fromJson(json) to get it properly.
It doesn't seem to change into an array of javascript objects, but just plain text.
However if I take the same JSON and just put it manually in like this:
var json = angular.fromJson(stringfromserver);
It turns into a proper javascript object and ng-repeat throws no error.
I found an answer on Quora:
--- Le Batoure,
Angular from json is now strict so assuming that this string is from a trusted source you would have to use "eval()" plus surround the call in parenthesis for it to work
var hatsData = angular.fromJson(eval("(" + hats + ")"))
If you bring your JSON from http request for example you don't need to use the fromJson method.
The JSON is automatically parsed by Angular and you can use it directly.
Related
A rather basic Angular 8 question I assume, but here goes:
I am using http.get() to pull a JSON response from the server. If I save the response as a variable, e.g. jsonResponse, and put that response into my HTML component as {{jsonResponse | json}} I get the anticipated nice json object, e.g. { 'hithere': {'this is me' : 'no really'}}.
But I cannot seem to get the same nice Object to loop through in the TS/JS side of things. Can someone point me in the correct direction so that I can do something like. jsonResponse.hithere?
Try passing the object using JSON.parse(obj) and then loop/traverse through its leafs.
I'm new to the World of triplets :-) I'm trying to use DotNetRDF to load the SOLR searchresult into a Graph using DotNetRDF.
The URL I'm getting data from is:
https://nvv.entryscape.net/store/search?type=solr&query=rdfType:https%5C%3A%2F%2Fnvv.entryscape.net%2Fns%2FDocument+AND+context:https%5C%3A%2F%2Fnvv.entryscape.net%2Fstore%2F1
The format is supposed to be "RDF/JSON". No matter what parser or what I try - I only get "invalid URI". Have tried to load from the URL and also tried downloadning the result to a file and load from file, same error.
I'm using VS2017 and have "nugetted" the latest version of DotNetRdf.
Please help me, what am I missing?
Regards,
Lars Siden
It looks like the JSON being returned by that endpoint is not valid RDF/JSON. It does appear to contain some RDF/JSON fragments but they are wrapped up inside another JSON structure. The RDFJSONParser in dotNetRDF requires that your entire JSON document be a single, valid chunk of RDF/JSON.
The value at resource.children[*].metadata is an RDF/JSON object. So is the value at resource.children[*].info. The rest is wrapper using property names that are not valid IRIs (hence the parser error message).
Unfortunately there is no easy way to skip over the rest of the JSON document and only parse the valid bits. To do that you will need to load the JSON document using Newtonsoft.JSON and then serialize each valid RDF/JSON object you are interested in as a string and load that using the RDFJSONParser's Load(IGraph, TextReader) or Parse(IRdfHandler, TextReader) method.
http://www.playframework.com/documentation/2.1.x/JavaTodoList
Using the above tutorial as a reference, I have created an application which sends data from the model to view via the Application controller.
I have managed to display the model(Tasks) as a high chart. The code is here.
public static Result format(){
return ok(views.html.frmt.render("Visualize it",Task.all()));
}
This goes to this view page.
http://ideone.com/ycz9ko
Currently, I use scala templating inside the javascript code itself. Refer to lines 9-14 and lines 20-24.This unelegant style of doing things is not really optimal.
I want to be able to accomplish the above using Json instead.
public static Result jsonIt(){
List<Task> tasks = Task.all();
return ok(Json.toJson(tasks));
}
My Qns are how to send the JSON objects to a view template.
And how to parse it into a Highcharts format. Is there some standard procedure to do this ? Or else I have to write my own method to do this ?
It'll great if someone can show me a code snippet. Also I would prefer a post not using Ajax. I would just want to know how to do this first.
I also found this stackoverflow post useful.how to parse json into highcharts. However, it didnt answer the part about converting from Play format to Highcharts format.
Thanks in advance
You don't need to pass a json object to your template, instead you might do an ajax call from your client side javascript (your template) and get json response that you could use futher in javascript code to build a chart. For example :
You have some path that is bind to your controller jsonIt() like so /chartsdata/json
then using jquery shorthand for ajax request:
var chart_data = $.get('/chartsdata/json', function(data) {
return data;
});
now you can use a chart_data that is an array of objects where each object represents a Task, in your further javascript code to build a chart.
I am new to JSP and I am having trouble finding a simple concrete example to make a request to a server that returns a JSON object.
What I am trying to do is something like:
myjson_object = getJSONfrom("my.webserver.com/get/json")
I basically want to add such a line to an existing JSP page so that I can have the JSON object available. I would like to avoid using AJAX or JQuery. I have found several examples like this one, but for some reason they do not work in my case.
Probably trying to do that operation into JSP is not a good idea, since you'd need to use scriptlets and I understand scriptlets are now considered not a good practice (see this)... You'd better do it into a servlet (see this)...
Anyway the code would be similar. You first need to make the request and then parse the JSON response...
In order to make the request you can use HttpURLConnection class. See this question.
Once you have the server response into a BufferedReader, you can parse the JSON using some library, such as Gson. You can find lots of examples of JSON deserializing using Gson in SO, like this or this.
i am new with JSON. I am using a api which using JSON for response. I am calling the api url by simple xhr method. The code is working and i am getting 200 status but
how do i able to retrieve the JSON in the html?
I was able to show the JSON by printing xhr.responseText in innerHTML. But i need to show the data so i can use them in html.
Can you suggest how i can present the data in html when i have the json data in xhr.responseText.
Please let me know if you need more info.
Can anyone guide me how to do it via jquery also?
If you add JSON2.js (from https://github.com/douglascrockford/JSON-js/blob/master/json2.js) to your page, then you can parse the JSON into a JavaScript object by using:
var parsedData = JSON.parse(xhr.responseText);
If you completely trust your JSON source, you can also do it very quickly and without using JSON2.js by simply evaling it thus:
var parsedData = eval('(' + xhr.responseText + ')');
but this will run any code embedded in the response and so isn't secure and generally wouldn't be recommended.
here is another post which works and less code because of jquery. The first answer works perfectly. I thought this might be help for people who having same problem.
Trying to use jQuery to display JSON text data