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| import time | |
| import requests | |
| import logging | |
| import boto3 | |
| from botocore.config import Config | |
| def send_price_data_to_timestream(write_client): | |
| base_url = "https://min-api.cryptocompare.com/data" | |
| symbols = "BTC,ETH,REP,DASH" | |
| r = requests.get(f"{base_url}/pricemulti?fsyms={symbols}&tsyms=USD") | |
| data = r.json() | |
| # extract the price for each cryptocurrency | |
| btc = data['BTC']['USD'] | |
| eth = data['ETH']['USD'] | |
| rep = data['REP']['USD'] | |
| dash = data['DASH']['USD'] | |
| # Convert data to the proper Timestream format: time, measure, dimension | |
| now = str(round(time.time() * 1000)) | |
| current_prices = [{'Time': now, | |
| 'TimeUnit': 'MILLISECONDS', | |
| 'Dimensions': [{'Name': 'crypto', 'Value': 'BTC'}], | |
| 'MeasureName': 'Price', | |
| 'MeasureValue': str(btc), | |
| 'MeasureValueType': 'DOUBLE'}, | |
| {'Time': now, | |
| 'TimeUnit': 'MILLISECONDS', | |
| 'Dimensions': [{'Name': 'crypto', 'Value': 'ETH'}], | |
| 'MeasureName': 'Price', | |
| 'MeasureValue': str(eth), | |
| 'MeasureValueType': 'DOUBLE'}, | |
| {'Time': now, | |
| 'TimeUnit': 'MILLISECONDS', | |
| 'Dimensions': [{'Name': 'crypto', 'Value': 'DASH'}], | |
| 'MeasureName': 'Price', | |
| 'MeasureValue': str(dash), | |
| 'MeasureValueType': 'DOUBLE'}, | |
| {'Time': now, | |
| 'TimeUnit': 'MILLISECONDS', | |
| 'Dimensions': [{'Name': 'crypto', 'Value': 'REP'}], | |
| 'MeasureName': 'Price', | |
| 'MeasureValue': str(rep), | |
| 'MeasureValueType': 'DOUBLE'}] | |
| logger.info("Sending records to Timestream...") | |
| write_client.write_records(DatabaseName="demo", | |
| TableName="demo", | |
| Records=current_prices, | |
| CommonAttributes={}) | |
| logger.info("Price data written to Timestream.") | |
| if __name__ == '__main__': | |
| logging.basicConfig(format="[%(levelname)s] [%(name)s] [%(asctime)s]: %(message)s", level="INFO") | |
| logger = logging.getLogger(__name__) | |
| session = boto3.Session(region_name='eu-central-1') | |
| timestream_write_client = session.client('timestream-write', | |
| config=Config(read_timeout=20, | |
| max_pool_connections=5000, | |
| retries={'max_attempts': 10})) | |
| while True: | |
| send_price_data_to_timestream(timestream_write_client) | |
| logger.info("Sleeping for 10 seconds...") | |
| time.sleep(10) |
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