function to help periodically collect data

[durtal]

create a single function which could be used to help periodically collect betfair market data, similar to the process found in vignette two

[durtal]

Function is being worked on, not yet exposed, can be seen (commented out) here

One issue I encountered when retrieving data for all horse racing markets (marketFilter(eventTypeIds = 7)), is request limits. Not immediately within the function (here), but when I double check whether the markets are still active this section.

Might be a case of moving this available_markets check into the else statement (as this is loading pre-collected markets).

May also be a case of actively restricting the number of markets the function tries to collect at one time, at the moment the maxResults parameter allows the user to set this argument, but it could be hard coded within the function (meh).