Batch Query

Efficiently fetch large amounts of stock data.

getAllAShareQuotes

Get all A-Share real-time quotes.

const quotes = await sdk.getAllAShareQuotes({
  batchSize: 500,
  concurrency: 5,
  onProgress: (completed, total) => {
    console.log(`Progress: ${completed}/${total}`);
  },
});

Parameters

Parameter	Type	Default	Description
batchSize	number	500	Codes per request
concurrency	number	7	Parallel requests
onProgress	function	-	Progress callback

getAllHKShareQuotes

Get all HK stock quotes.

const quotes = await sdk.getAllHKShareQuotes({
  concurrency: 5,
  onProgress: (c, t) => console.log(`${c}/${t}`),
});

getAllUSShareQuotes

Get all US stock quotes.

const quotes = await sdk.getAllUSShareQuotes({
  concurrency: 5,
  onProgress: (c, t) => console.log(`${c}/${t}`),
});

getAllQuotesByCodes

Get quotes for specific code list.

const codes = ['sh600000', 'sz000001', 'sh600519', ...];

const quotes = await sdk.getAllQuotesByCodes(codes, {
  batchSize: 100,
  concurrency: 3,
});

batchRaw

Low-level batch query for mixed data types.

const result = await sdk.batchRaw([
  'r_sz000858',  // Real-time quote
  'r_sh600519',  // Real-time quote
]);

Performance Tips

1. Adjust concurrency based on network

   • Low latency: Use higher concurrency (7-10)
   • High latency: Use lower concurrency (3-5)

2. Use progress callbacks for UI feedback

   onProgress: (completed, total) => {
     updateProgressBar(completed / total * 100);
   }

3. Handle errors gracefully

   try {
     const quotes = await sdk.getAllAShareQuotes();
   } catch (error) {
     // Implement retry or fallback
   }