CODEWITHSUNDEEP
androidjsonrequest
eskalera
eskalera

Reputation: 1092

How to build JSON Request Body?

I'm trying to build the following JSON Request Body.

It's my first time with JSON and I'm following this examples, but still struggling.

I've been taking a look to GSON but wanted to manage pure JSON first, and maybe for something so small it's not worth it to add GSON library?

Could you help me with the code?

Thanks.

{
   locations:
   [
      {
         latLng:
         {
            lat: 40.900799,
            lng: 8.606102
         }
      },
      {
         latLng:
         {
            lat: 42.900799,
            lng: 9.606102
         }
      }
   ]
}

EDIT:

Here is the Web Service I am trying to consume and here a request sample.

Upvotes: 0

Views: 9715

Answers (3)

Yevgeny Simkin
Yevgeny Simkin

Reputation: 28379

Expanding on maciekczwa's answer. JSON (unlike arguably XML) isn't really meant to be looked at with human eyes. It very quickly becomes very hard to see where one object starts and ends and what's wrapping what. Use his example to create your main JSON object and then fill it with whatever objects you need to. When you're all done you can convert it to string for transport very easily, without having to look at it, and doing it this way means not having to worry about what labels need to be wrapped in what kinds of quotes etc.

And eskalera is 100% correct. JSON requires all fields to be wrapped in quotes (the rules around whether or not they can be single quotes or *MUST be double quotes vary from implementation to implementation, but again, this is only relevant if you're constructing the JSON manually, as you should only do in instances where it's EXTREMELY simple (and even then... probably not).

Upvotes: 0

maciekczwa
maciekczwa

Reputation: 46

Use json objects. Do something like that. Don't write json by hand, you could easily do a mistake.

public JSON() throws JSONException
{
    JSONArray locArr=new JSONArray();
    locArr.put(createLatLng(40.900799, 8.606102));
    locArr.put(createLatLng(42.900799, 9.606102));
    JSONObject main=new JSONObject();
    main.put("locations", locArr);
    Log.d("JSON",main.toString());      
}


public JSONObject createLatLng(double lat, double lng) throws JSONException
{
    JSONObject latLng=new JSONObject();
    latLng.put("lat",lat);
    latLng.put("lon",lng);
    JSONObject latLngWrap=new JSONObject();
    latLngWrap.put("latLng",latLng);
    return latLngWrap;
}

Upvotes: 3

macwier
macwier

Reputation: 1083

JSON notation requires the "" around field names. Values should only be wrapped, if they are string.

{
 "locations":
   [
      {
         "latLng":
         {
            "lat": 40.900799,
            "lng": 8.606102
         }
      },
      {
         "latLng":
         {
            "lat": 42.900799,
            "lng": 9.606102
         }
      }
   ]
}

You can always verify, if you JSON is correct using http://jsonlint.com/

Upvotes: 1

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