POST tasks/{task_id}/fields

curl --request POST \
     --url https://api.cmp.optimizely.com/v3/tasks/{task_id}/fields \
     --header 'accept: application/json' \
     --header 'content-type: application/json' \
     --data '{
     "type": "checkbox",
     "values": [],
     "id": "41aac313bda1e40b6cde7116fc24a"
     }'

var myHeaders = new Headers();
myHeaders.append("accept", "application/json");
myHeaders.append("content-type", "application/json");

var raw = JSON.stringify({
   "type": "checkbox",
   "values": [],
   "id": "41aac313bda1e40b6cde7116fc24a"
});

var requestOptions = {
   method: 'POST',
   headers: myHeaders,
   body: raw,
   redirect: 'follow'
};

fetch("https://api.cmp.optimizely.com/v3/tasks/{task_id}/fields", requestOptions)
   .then(response => response.text())
   .then(result => console.log(result))
   .catch(error => console.log('error', error));

require "uri"
require "json"
require "net/http"

url = URI("https://api.cmp.optimizely.com/v3/tasks/{task_id}/fields")

https = Net::HTTP.new(url.host, url.port)
https.use_ssl = true

request = Net::HTTP::Post.new(url)
request["accept"] = "application/json"
request["content-type"] = "application/json"
request.body = JSON.dump({
   "type": "checkbox",
   "values": [],
   "id": "41aac313bda1e40b6cde7116fc24a"
})

response = https.request(request)
puts response.read_body

import requests
import json

url = "https://api.cmp.optimizely.com/v3/tasks/{task_id}/fields"

payload = json.dumps({
   "type": "checkbox",
   "values": [],
   "id": "41aac313bda1e40b6cde7116fc24a"
})
headers = {
   'accept': 'application/json',
   'content-type': 'application/json'
}

response = requests.request("POST", url, headers=headers, data=payload)

print(response.text)

// Added field to a task.
{}

// Client error
{
  "message": "Not found",
  "errors": ""
}

// Authorization error
{
  "message": "Not found",
  "errors": ""
}

// Permission error
{
  "message": "Not found",
  "errors": ""
}

// Not found error
{
  "message": "Not found",
  "errors": ""
}

// Unprocessable entity error
{
  "message": "Not found",
  "errors": ""
}