curl --request POST \
  --url https://sandbox.rx.tera.health/v1/enrollments/{enrollment_id}/plan \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "plan_code": "ai_only",
  "reason": "Patient downgraded at renewal"
}
'

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({plan_code: 'ai_only', reason: 'Patient downgraded at renewal'})
};

fetch('https://sandbox.rx.tera.health/v1/enrollments/{enrollment_id}/plan', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://sandbox.rx.tera.health/v1/enrollments/{enrollment_id}/plan"

payload = {
    "plan_code": "ai_only",
    "reason": "Patient downgraded at renewal"
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)