parsing Opendata JSON with NodeJS

Question

I Have this project where I want to get the JSON data from an Open Dataset . I need to use NodeJS to get this JSON info from this dataset and pass it to angular. The problem is that I'm passing a JSON-file instead of a JSON object so I can't use the usual Angular functions like ng-repeat on this data. I'm guessing I need to Parse this JSON in NodeJS first, but HOW do I do this? How do I parse this JSON and only pass the requested objects back to my angular?

NodeJS code for getting the full JSON from the dataset to Angular:

app.post("/", function (req, res) {
    request("http://datasets.antwerpen.be/v1/bevolking/inkomensvolgenswoonplaatsperdistrict.json").pipe(res);
})

so I angular I will get the entire JSON, but this is neither efficient/fast, nor is it possible for me to handle the data in Angular.

Answer 1

I tried the url you gave and it returns an object which contain an array of objects. I guess you want the ng-repeat to run through that array vs the top parent object?

if you know the top parent key (which was 'inkomensvolgenswoonplaatsperdistrict' when I tested) you can tell angular to use it, like this:

<div ng-repeat="(key, value) in myObj.inkomensvolgenswoonplaatsperdistrict"> ... </div>

which will tell angular to run through the array.

If you want to handle this at the node level, you can do the following:

app.post("/", function (req, res) {
    request("http://datasets.antwerpen.be/v1/bevolking/inkomensvolgenswoonplaatsperdistrict.json", function (error, response, body) {
        if ( error || response.statusCode != 200)
            return (res.status (response.statusCode).end ()) ;
        var data =JSON.parse (body) ;
        res.json (data.inkomensvolgenswoonplaatsperdistrict) ;
    });
}) ;