In my opinion best way is something like phpmyadmin on public server where everybody can choose periods, pairs, exchanges and download defined candles by export to sqlite, postgre or mongodb.
It can be do propably in raw mysql and frontend like phpmyadmin.
Or by simpler script which for example: download from server specified parts with one pair, with 7 days period and merge all pairs to specified by user datasets on local.
All datasets size from all supported exchanged should has some GB. Not more like 50 GB. It should be done with webserver.
It can be do propably in raw mysql and frontend like phpmyadmin.
Or by simpler script which for example: download from server specified parts with one pair, with 7 days period and merge all pairs to specified by user datasets on local.
All datasets size from all supported exchanged should has some GB. Not more like 50 GB. It should be done with webserver.
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