curl --request GET \
  --url https://api.predexon.com/v2/polymarket/candlesticks/{condition_id} \
  --header 'x-api-key: <api-key>'

{
  "interval": 123,
  "interval_seconds": 123,
  "candlesticks": [
    {
      "end_period_ts": 123,
      "price": {
        "open": 123,
        "high": 123,
        "low": 123,
        "close": 123,
        "open_dollars": "<string>",
        "high_dollars": "<string>",
        "low_dollars": "<string>",
        "close_dollars": "<string>",
        "mean": 123,
        "mean_dollars": "<string>",
        "previous": 123,
        "previous_dollars": "<string>"
      },
      "volume": 123,
      "trades_count": 123
    }
  ],
  "condition_id": "<string>",
  "token_id": "<string>",
  "first_trade_ts": 123,
  "last_trade_ts": 123
}