K-line push (not supported)
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Alltick's WebSocket interface does not support K-line data push. Both historical and real-time K-lines can only be accessed through the HTTP interface. Recommended implementation methods are as follows:
Implementation Suggestions (for reference):
1、Periodic K-line Retrieval: To ensure quick updates, consider purchasing a high-frequency request plan.
2、Combine HTTP Interfaces: It is recommended to use both /kline and /batch-kline interfaces as follows:
First, use the /kline interface to poll and store historical data in a local database. Subsequent historical data can be retrieved directly from the database without additional requests.
Then, continuously use the /batch-kline interface to request the latest two K-lines for multiple products and update the database.
This method allows for quick updates of the latest K-lines while avoiding limitations from frequent historical requests.
Alltick API does not provide price change or 24-hour price change fields. Users can calculate price changes using Alltick data.
1、Daily Price Change Calculation：
Method 1: Use the HTTP API to get the daily K-line closing price for today and the previous day.
Formula: Price Change (%) = (Today's Closing Price - Previous Day's Closing Price) / Previous Day's Closing Price * 100%
Method 2: Use the WebSocket API to get the latest price and the HTTP API to fetch the previous day's closing price.
Formula: Price Change (%) = (Latest Price - Previous Day's Closing Price) / Previous Day's Closing Price * 100%
2、24-Hour Price Change Calculation：
Use the WebSocket trade price API (Request Protocol: 22004) to receive real-time tick data.
To calculate, store the latest price from 24 hours ago and use the following formula:
Formula: 24H Price Change (%) = (Latest Price - Price 24 Hours Ago) / Price 24 Hours Ago * 100%
Official website: https://alltick.co/