20 lines
723 B
Markdown
20 lines
723 B
Markdown
# Ticker Tape
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To download a list of trades from a specific day from Alpaca, make an account on https://alpaca.markets/ and set APCA_API_KEY_ID and APCA_API_SECRET_KEY environment variables.
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Then use `ticker_tape.py` to download and then sort them:
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```
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python ticker_tape.py --symbol-file sp100_symbols.txt --start 2026-06-12 --raw > trades_unsorted.csv
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sort -t, -k1 trades_unsorted.csv > trades_sorted.csv
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```
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To generate ESC/POS commands for the receipt printer use `print_tape.py`:
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```
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uv run python print_tape.py -o ticker_tape.escpos trades_sorted.csv
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```
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Defaults to 10,000 trades per escpos file, cutting the receipt paper every 1000 stocks.
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1000 trades translates into about roughly 10 feet of receipt paper.
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