Implementation:HKUDS AI Trader Get Daily Price Crypto
| Knowledge Sources | |
|---|---|
| Domains | Data_Engineering, Financial_Data, Cryptocurrency |
| Last Updated | 2026-02-09 14:00 GMT |
Overview
Concrete tool for fetching daily cryptocurrency OHLCV data from Alpha Vantage API, wrapping the internal get_crypto_daily_price function.
Description
The get_daily_price function in the crypto module is a thin wrapper around get_crypto_daily_price that delegates to Alpha Vantage's DIGITAL_CURRENCY_DAILY endpoint. It backs up existing data before fetching, merges new data with historical records, and converts the response to a standardized JSON format compatible with the rest of the data pipeline.
Usage
Import and call this function when populating the crypto data directory with daily price data for major cryptocurrencies. Typically called in a loop over the 10-coin universe (BTC, ETH, XRP, SOL, ADA, SUI, LINK, AVAX, LTC, DOT).
Code Reference
Source Location
- Repository: AI-Trader
- File: data/crypto/get_daily_price_crypto.py
- Lines: L324-329
Signature
def get_daily_price(symbol: str):
"""
Fetches daily crypto OHLCV from Alpha Vantage and saves to JSON.
Args:
symbol: Cryptocurrency symbol (e.g. "BTC", "ETH")
Returns:
None. Delegates to get_crypto_daily_price(symbol, market="USD")
"""
Import
from data.crypto.get_daily_price_crypto import get_daily_price
I/O Contract
Inputs
| Name | Type | Required | Description |
|---|---|---|---|
| symbol | str | Yes | Cryptocurrency symbol (e.g. "BTC", "ETH", "SOL") |
| ALPHAADVANTAGE_API_KEY | str (env) | Yes | Alpha Vantage API key from environment |
Outputs
| Name | Type | Description |
|---|---|---|
| daily_prices_{SYMBOL}.json | File | JSON file in data/crypto/coin/ with merged OHLCV data |
Usage Examples
Fetch All Crypto Prices
from data.crypto.get_daily_price_crypto import get_daily_price
crypto_symbols = ["BTC", "ETH", "XRP", "SOL", "ADA", "SUI", "LINK", "AVAX", "LTC", "DOT"]
for symbol in crypto_symbols:
get_daily_price(symbol)
# Creates: data/crypto/coin/daily_prices_{symbol}.json
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