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example_stream_buffer_fifo-lifo.py
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
#
# File: example_stream_buffer_fifo-lifo.py
#
# Part of ‘UNICORN Binance WebSocket API’
# Project website: https://github.com/oliver-zehentleitner/unicorn-binance-websocket-api
# Documentation: https://oliver-zehentleitner.github.io/unicorn-binance-websocket-api
# PyPI: https://pypi.org/project/unicorn-binance-websocket-api/
#
# Author: Oliver Zehentleitner
# https://about.me/oliver-zehentleitner
#
# Copyright (c) 2019-2021, Oliver Zehentleitner
# All rights reserved.
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish, dis-
# tribute, sublicense, and/or sell copies of the Software, and to permit
# persons to whom the Software is furnished to do so, subject to the fol-
# lowing conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
# ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
# SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
# IN THE SOFTWARE.
from unicorn_binance_websocket_api.unicorn_binance_websocket_api_manager import BinanceWebSocketApiManager
import logging
import time
import os
# https://docs.python.org/3/library/logging.html#logging-levels
logging.basicConfig(level=logging.ERROR,
filename=os.path.basename(__file__) + '.log',
format="{asctime} [{levelname:8}] {process} {thread} {module}: {message}",
style="{")
# create instance of BinanceWebSocketApiManager
binance_websocket_api_manager = BinanceWebSocketApiManager(exchange="binance.com", stream_buffer_maxlen=3)
binance_websocket_api_manager.create_stream('kline_1m', 'bnbbtc',
stream_buffer_name="buffer1",
stream_buffer_maxlen=4,
output="UnicornFy")
binance_websocket_api_manager.create_stream('kline_1m', 'bnbbtc',
stream_buffer_name="buffer2",
stream_buffer_maxlen=4,
output="UnicornFy")
time.sleep(4)
print(f"sb-len: {binance_websocket_api_manager.get_stream_buffer_length()}")
time.sleep(1)
print(f"sb-len: {binance_websocket_api_manager.get_stream_buffer_length()}")
time.sleep(1)
print(f"sb-len: {binance_websocket_api_manager.get_stream_buffer_length()}")
time.sleep(1)
print(f"sb-len: {binance_websocket_api_manager.get_stream_buffer_length()}")
time.sleep(1)
print(f"clearing...")
binance_websocket_api_manager.clear_stream_buffer(stream_buffer_name="buffer1")
binance_websocket_api_manager.clear_stream_buffer(stream_buffer_name="buffer2")
print(f"sb-len: {binance_websocket_api_manager.get_stream_buffer_length()}")
time.sleep(1)
print(f"sb-len: {binance_websocket_api_manager.get_stream_buffer_length()}")
time.sleep(1)
print(f"sb-len: {binance_websocket_api_manager.get_stream_buffer_length()}")
time.sleep(1)
print(f"sb-len: {binance_websocket_api_manager.get_stream_buffer_length()}")
time.sleep(1)
print(f"sb-len: {binance_websocket_api_manager.get_stream_buffer_length()}")
time.sleep(1)
print(f"sb-len: {binance_websocket_api_manager.get_stream_buffer_length()}")
time.sleep(1)
print(f"sb-len: {binance_websocket_api_manager.get_stream_buffer_length()}")
time.sleep(1)
print(f"sb-len: {binance_websocket_api_manager.get_stream_buffer_length()}")
time.sleep(1)
print(f"sb-len: {binance_websocket_api_manager.get_stream_buffer_length()}")
time.sleep(1)
print(f"sb-len: {binance_websocket_api_manager.get_stream_buffer_length()}")
time.sleep(1)
print(f"sb-len: {binance_websocket_api_manager.get_stream_buffer_length()}")
time.sleep(1)
print(f"sb-len: {binance_websocket_api_manager.get_stream_buffer_length()}")
time.sleep(1)
print(f"sb-len: {binance_websocket_api_manager.get_stream_buffer_length()}")
time.sleep(1)
print(f"sb-len: {binance_websocket_api_manager.get_stream_buffer_length()}")
time.sleep(1)
print(f"sb-len: {binance_websocket_api_manager.get_stream_buffer_length()}")
time.sleep(1)
print(f"sb-len: {binance_websocket_api_manager.get_stream_buffer_length()}")
time.sleep(1)
print(f"sb-len: {binance_websocket_api_manager.get_stream_buffer_length()}")
time.sleep(1)
print(f"sb-len: {binance_websocket_api_manager.get_stream_buffer_length()}")
time.sleep(1)
print(f"sb-len: {binance_websocket_api_manager.get_stream_buffer_length()}")
time.sleep(1)
print(f"sb-len: {binance_websocket_api_manager.get_stream_buffer_length()}")
time.sleep(1)
print(f"sb-len: {binance_websocket_api_manager.get_stream_buffer_length()}")
time.sleep(1)
print(f"sb-len: {binance_websocket_api_manager.get_stream_buffer_length()}")
time.sleep(1)
print(f"sb-len: {binance_websocket_api_manager.get_stream_buffer_length()}")
print(f"FIFO START ##################################################")
i = 0
while i < 5:
oldest_stream_data_from_stream_buffer = binance_websocket_api_manager.pop_stream_data_from_stream_buffer(stream_buffer_name="buffer1")
if oldest_stream_data_from_stream_buffer is False:
time.sleep(0.01)
else:
if oldest_stream_data_from_stream_buffer is not None:
print(f"FIFO: {oldest_stream_data_from_stream_buffer}")
i += 1
print(f"LIFO START ##################################################")
i = 0
while i < 5:
oldest_stream_data_from_stream_buffer = binance_websocket_api_manager.pop_stream_data_from_stream_buffer(stream_buffer_name="buffer2",
mode="LIFO")
if oldest_stream_data_from_stream_buffer is False:
time.sleep(0.01)
else:
if oldest_stream_data_from_stream_buffer is not None:
print(f"LIFO: {oldest_stream_data_from_stream_buffer}")
i += 1
binance_websocket_api_manager.stop_manager_with_all_streams()