Forum Discussion

miraks's avatar
miraks
Creator II
5 years ago

How to return JSON from a odata method

Hi,

I created a a serveur method named COCO_MONITORING returning a JSON like this

var innovator = this.getInnovator();
var output= new Newtonsoft.Json.Linq.JObject();
....
return innovator.newResult(output.ToString(Newtonsoft.Json.Formatting.None));

I'm able to call it in odata like this:
https://serveur/1Z62innovator/server/odata/method.COCO_MONITORING

My problem is that the output of the web service is a text/plain containing the json as a text.

I would like to have directly the json (application/json).

How can I do that ?

3 Replies

  • angela's avatar
    angela
    Catalyst II
    5 years ago

    Hi Miraks,

    newResult can just return text. Maybe you can add your output to a temporary Aras item and then return the item?

    • miraks's avatar
      miraks
      Creator II
      5 years ago

      Hi Angelalp,

      Thank you for your answer.

      If my method is like this:

      return this.getInnovator().newResult(new Newtonsoft.Json.Linq.JObject
       {
       {"return_code", 0} ,
       {"message", "hello world!"}
       }.ToString(Newtonsoft.Json.Formatting.None));

      The output is a text:

      If my method is like this:

      var item = this.getInnovator().newItem();
      item.setProperty("json", new Newtonsoft.Json.Linq.JObject
       {
       {"return_code", 0} ,
       {"message", "hello world!"}
       }.ToString(Newtonsoft.Json.Formatting.None));

      return item;

      The output is a text:

      So, you are right, with your solution the output is well a JSON.

      But a JSON of an Item. Is it possible to send a fully customized JSON ?

      Regards.

      • angela's avatar
        angela
        Catalyst II
        5 years ago

        Hi Miraks,

        standard Aras Method just can return items. "Results" and "Error" are also just items.

        Maybe you can use some kind of custom class or other more native C# techniques, but I am not sure. Some times you see these kind of designs in native Aras code.