Error executing GetJSON in service - Invalid Content Type: text/html

[DV_9683959]

Hello guys,

I have a service in ThingWorx 9 where I am trying to use the GetJSON from ContentLoaderFunctions to get the data for a ThingWorx project but I get the following error: " Message :: Invalid Content Type: text/html". I checked the logs and there are no other errors.

I tried to do this request from Postman and it works fine. Also tried a PostJSON and it works fine, so the appKey it's ok. I also tested the javascript from below with ThingWorx 8.5 and it works without any issues...but for ThongWorx 9 it simply does not work.

You can find below the javascript code from my service:

var params = {

  headers: {
     "appKey": "6b2c8c8b-423e-5a56-c321-5e378ff55662",
     "Content-type": "application/json"
      } /* JSON */,
   url: "http://localhost/Thingworx/Projects/daniel_test_99" /* STRING */
};

var result = Resources["ContentLoaderFunctions"].GetJSON(params);

If it's important "daniel_test_99" it's a local Project with no dependencies.

ThingWorx version: 9.0

Do you have any idea why it's not working?

Thanks!

[ptc-914827]

I have the same problem!

[zyuan1]

What's the output type of GetJson service and your own script?

[DV_9683959]

Output type is JSON.

[ptc-914827]

The workaround I used is to use GetText() instead, but then you need to parse the result to json.

[zyuan1]

Since you've tested through Postman and TWX 8.5, then this script should be okay;

You're not getting 401 error, so the server's external connection is correct;

I asked what's the output type of your script to check if you forget to change the output from Nothing to Json, because it sometimes happen to me;

After all these, there might be some difference or even bug in the TWX 9 , you may create a case for it and let TS contact R&D.

[arozbaum]

Hi,

Add the Accept header in your request,

var params = {

  headers: {

     ...
     "Accept": "application/json"

      } /* JSON */,
};

This will tell the server to respond with a JSON.

In the response headers, content-type tells you what the server actually sent back.

if you added the Accept header asking for a JSON but got text/html, notify the owner of the server that if the server cannot respond in accordance to the Accept cookie it should return a 406.

most likely it will be fixed and the server will return a JSON.

Thanks,

Arkady. 

[RY_9708308]

Hope this works.

[slangley]

Hi @DV_9683959.

If one of the previous responses allowed you to find a solution, please mark the appropriate one as the Accepted solution for the benefit of others with the same issue.

Regards.

--Sharon