>>>Here is what I see (attached). I think one of the problems is that it's showing wrong content type - it should be JSON. Do you know what should I change?
>>
>>What do you mean by 'wrong content type'? JSON is there - Fiddler is showing a representation of JSON. Does 'raw' view show the json object ?
>
>Here is what raw view shows:
>
>

>POST https://dev.citypass.com/integrationapi//Attraction/Tickets/Validate HTTP/1.1
>Accept: application/json
>Authorization: Basic something here
>Cache-Control: max-age=0
>Content-Type: application/json; charset=utf-8
>Host: dev.citypass.com
>Content-Length: 117
>Expect: 100-continue
>Connection: Keep-Alive
>
>{"TicketBarcode":"BarcodeHere","TicketUsageDate":"2016-10-28T15:09:06.7021957-06:00","UserID":"userNameHere"}

>
>and this is what I am supposed to send:
>
>

>POST /integrationapi//Attraction/Tickets/Validate HTTP/1.1
>Host: dev.citypass.com
>Content-Type: application/json
>Authorization: Basic different info here (not the one I send)
>Cache-Control: no-cache
>Postman-Token: 5fabe5b7-5d25-ac19-e81e-0f41a702f793
> 
>{
>  "TicketUsageRequests": [
>    {
>      "TicketBarcode": "01120800369235",
>      "TicketUsageDate": "2016-10-28T15:09:06.7021957-06:00",
>      "UserID": "patrick" // User is also different, don't know if it matters
>}
>  ]
>}
>

>
>Also, in my request I do not see the name of the object - how should I send it as well?

Firstly fix your headers - you can see what's needed so set the headers accordingly.

The Json object (TicketUsageRequests) is an array of objects so put the item in an array.