How to send a form with just 1 TextBox and 1 Button via Postman

I tried creating a request via postman with below Request Body with 1 input text,

{
    "subject" : "Fill Up the Form",
    "content" : "Form Data",
    "formMetaData" : {
      "id": "myform1234",
      "controls": [{
        "type": "Circuit.Enums.FormControlType.INPUT",
        "name": "Your Name"
      }]
    } 
}

But I am only getting the Content and Subject part in Circuit Sandbox. Form part is missing

Using the Rest API and not the SDK you should replace the ENUMS with strings for the control types.

I have a working code sample in Postman for this

curl -X POST \
  https://beta.circuit.com/rest/v2/conversations/6aecff9e-1aa0-46f3-8e24-8519e2956291/messages \
  -H 'Authorization: Bearer 11111omitted' \
  -H 'Content-Type: application/x-www-form-urlencoded' \
  -F 'content=Please fill in the form below' \
  -F 'subject=Test form' \
  -F 'formMetaData={"id":"myformonbeta","title":"Test Form","controls":[{"type":"INPUT","name":"name","text":"What is your namne ?","rows":1},{"type":"BUTTON","text":"Send"}]}'

Hope this helps