curl --request POST \
  --url 'https://oauth.msu.io/oauth/revoke' \
  --header 'Content-Type: application/x-www-form-urlencoded' \
  --header 'Authorization: Basic base64({CLIENT_ID}:{CLIENT_SECRET})' \
  --data 'token={REFRESH_TOKEN}&token_type_hint=refresh_token'

const response = await fetch('https://oauth.msu.io/oauth/revoke', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/x-www-form-urlencoded',
    'Authorization': `Basic ${btoa('{CLIENT_ID}:{CLIENT_SECRET}')}`
  },
  body: new URLSearchParams({
    token: '{REFRESH_TOKEN}',
    token_type_hint: 'refresh_token'
  })
});

import requests
import base64

credentials = base64.b64encode(b'{CLIENT_ID}:{CLIENT_SECRET}').decode()

response = requests.post(
  'https://oauth.msu.io/oauth/revoke',
  headers={
    'Content-Type': 'application/x-www-form-urlencoded',
    'Authorization': f'Basic {credentials}'
  },
  data={
    'token': '{REFRESH_TOKEN}',
    'token_type_hint': 'refresh_token'
  }
)

HTTP/1.1 200 OK