Dukascopy Support Board • View topic

diegoalvsu

Hello,
I'm starting to read about the feeds in the wiki, but there is something I do not understand: Is it the same to use the feed TIME_PERIOD_AGGREGATION or TICKS (and use onFeedData () method), to use the onbar methods () and onTick ()?. If so should use feeds that are more modern/top/advanced than the old onbar and methods onTick solution? What differences might have on the use of the two options?

Thanks, sorry for my English!

API Support

diegoalvsu wrote:

Is it the same to use the feed TIME_PERIOD_AGGREGATION or TICKS (and use onFeedData () method), to use the onbar methods () and onTick ()?.

IFeedListener.onFeedData works only with the feeds that you explicitly subscribe to, however, standard onBar and onTick data for all active instruments. See more here:
https://www.dukascopy.com/wiki/#Strategy_API/IStrategy_interface

diegoalvsu wrote:

If so should use feeds that are more modern/top/advanced than the old onbar and methods onTick solution?

If you only want to work with ticks and bars then you might as well just use onTick and onBar methods. However, if you wish to have the flexibility to change to other type of feeds simply by changing the feed descriptor from the strategy parameter dialog, then the preferable approach is to use the IFeedListener.