alessiosavi / coinbase-fetcher

go-coinbase-fetcher

A simple go library delegated to store the history from coinbase.com for any given currency

Functionalities:

• The Downloader have the following parameter: Granularity, Pair, LimitDate:
  • Granularity: 60, 300, 900, 3600, 21600, 86400;
  • Pair: coinbase pair;
  • Limit date: stop date (download all from now since limit date);
• The Downloader create a csv file using the input parameter, an example: BTC-USD-86400-2015-01-01T00:00:00Z-2022-02-28T00:39:03Z.csv;
• The csv file created is processed in streaming. Once that a batch of 300 rows have been downloaded, the result is store into the file; serialized as csv;

Example:

// ...
var opts = datastructure.DownloadOpts{
Granularity: datastructure.GRANULARITY_DAY,
Pair:        "BTC-USD",
LimitDate:   time.Date(2015, 01, 01, 0, 0, 0, 0, time.UTC),
}
// ...

Once initialized, the downloader is delegated to download the data for the given pair in the given period

download := opts.New()
filename := download.Download(nil)

A progressbar will show the number estimated finish time and other information:

2021-08-09T00:30:00Z   7% |█████████████████                              | (65/836, 5 it/s) [15s:2m34s]

The manager

The Manager is delegated to perform few operation on the file:

• Sort
• Drop duplicates

var manager datastructure.Manager
manager.Sort(filename)
manager.DropDuplicates(filename)