50 lines
1.5 KiB
Plaintext
50 lines
1.5 KiB
Plaintext
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I would like to have a program that contors to these rules:
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1. written in python3
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2. singe file
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And then makes these things:
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1. record the bitcoin price
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1.1. by fetching:
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source = 'http://api.binance.com/api/v3/avgPrice'
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payload = {'symbol': 'BTCUSDT'}
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response = requests.get(source, params=payload)
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binance api response is like:
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{
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"mins": 5,
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"price: "170.20"
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}
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1.2. and storing it in sqlite3 or other embedded database
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The database should hold these informations:
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* timestamp as unix timestamp
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* value of the symbol
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* name of the symbol
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* source of the symbol
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1.3
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Fetch the price every "mins" minutes, something like:
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time_delta = time.now() - timestamp_of_last_record
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if time_delta <= mins_from_last_record
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fetch_new_price_data()
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2. serve a http/json api to send the gathered price data forward
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Every response from this api should contain sha256 checksum as last element it is json document.
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This api should be accessible by token authentication.
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2.1 allow full dump of the database as json document
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2.2 allow partial dump by getting limiting timestamp as of attribure from the http get reqeust
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3. Hold the sice of the files under control
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The database that holds the price data should be rotated every midnight.
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So that we dont end up with large database files on the server.
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Can you generate this?
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I think to make this work there needs to be threading. One thread for the data gathering and another for the api serving.
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