Hong Kong spot BTC/ETH ETFs — canonical shape with a data-status flag.

Hong Kong spot ETFs (CSOP, ChinaAMC, Harvest, Bosera) are the Asia-session counterpart to the US funds. Ingestion is NOT live yet — the schema already carries a `region='HK'` column on `etf_flow`, so rows will flow through this endpoint automatically once the adapter ships. Until then `meta.dataStatus = 'not-yet-ingested'` so dashboards can render a friendly placeholder.

Query parameters

All query parameters are optional unless marked required.

Response shape

Always wrapped in the standard envelope. Nullable fields are explicitly marked — treat missing numeric data as a real data-source gap, not as an error.

// Wrapped in the standard envelope:
// {
//   data: /* shape below */,
//   meta?: { total?: number; limit?: number; offset?: number; ... }
// }

{
  region: "HK";
  flows: Array<{
    date: string;
    tickerFlows: Record<string, number>;  // keyed "ASSET:TICKER" (e.g. "BTC:CSOP")
    total: number;
  }>;
  cumulative: number;
}

Example

Copy the curl, replace YOUR_KEY with a real key from your dashboard, and run.

curl -sS "http://localhost:3000/api/v1/etf/hk?days=30"

{
  "data": {
    "region": "HK",
    "flows": [],
    "cumulative": 0
  },
  "meta": { "total": 0, "days": 30, "dataStatus": "not-yet-ingested" }
}

Notes

• Check `meta.dataStatus` — a value of `not-yet-ingested` means the feed hasn't shipped yet and the empty response is expected.
• Ticker key format is `ASSET:TICKER` to disambiguate BTC vs ETH products from the same issuer.