curl -X POST https://api.llmgenerator.com/api/v1/auth/refresh \
  -H "Content-Type: application/json" \
  -d '{
        "refreshToken": "YOUR_REFRESH_TOKEN"
      }'

const response = await fetch('https://api.llmgenerator.com/api/v1/auth/refresh', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    refreshToken: 'YOUR_REFRESH_TOKEN'
  })
});

const data = await response.json();

{
  "success": true,
  "message": "Token refreshed successfully",
  "tokens": {
    "accessToken": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9...",
    "refreshToken": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9...",
    "expiresIn": 900,
    "tokenType": "Bearer"
  }
}

{
  "message": "Invalid or expired refresh token"
}

{
  "message": "Refresh token has been revoked"
}