Comments

That's absolutely fantastic. Thank you so much for all your help !

Install the latest version of bfexplorer, I have just added Home/AwayNumberOfRedCards and CornersDifference to Football bot Start/StopCriteria parameters.

That seems a very good tool for football trading. Wouldn't it be possible to include/use some of these parameters on a Football Bot ? Or at least the Red Cards information that can change the whole course of a match ?

I can understand only what is asked, not what you think.

Just common sense when we are talking about number of api calls to betfair api, to minimize you need to monitor as less as markets as needed using reasonable update interval.

I do not know on what markets you run your strategy, or what exactly you do, so how could I advise?

Graf, asked:

“It could make some sense not to make so many calls until the first goal is scored and there is no active bet and most of all if the match ends 0-0. Am I right?”

So I can only understand that he executes his strategy on football/soccer markets.

Bfexplorer does not implement adjustable update interval, I mean feature that bot will automatically switch update interval for some markets that is the role of bespoke betfair app developed exactly for customer needs.

In this post:

http://bfexplorer.net/Community/BlogContent/525

I described such tool for football trades who use match details, score, time, some statistics to decide if they open market/s, and trade on them.  

This tool updates market data only for in-play markets in 5 seconds interval.

Please understand that this discussion was (and still is) about on how to reduce Betfair data reading calls to prevent further API delays. Thank you

Graf, this discussion was about how any bot operates on a market when bets are placed, not about exact strategy and how to execute it as effective as possible.

It could make some sense not to make so many calls until the first goal is scored and there is no active bet and most of all if the match ends 0-0. Am I right ?

Bot manages any action, so when executed every 10 seconds, setting any time parameter in the bot settings lower than update interval does not make sense.

Ok. And if I use Strategy/Bot Executor with same Update Interval set to 10 seconds with a BeTheFirstInQueue bot with its ChaseOddsTimeout set to 00:00:01.5000000 will it also update the BeTheFirstInQueue bet placing each 00:00:01.5000000 and not each 10 seconds ? Thank you very much for all your time and patience.

No, I already explained that, any bet operation is separated from market data update. It is totally different betfair API method call.

Thank you very much for your short video. But what I really need to know is if, in "Strategy/Bot Executor", a bet also needs to wait those same 10 seconds Update Interval to be placed after a goal is scored (plus the regular Betfair "countdown" for live matches) or if those 10 seconds refers only to market data readings and bet placing on "Strategy/Bot Executor" is immediate (plus the regular Betfair "countdown" for live matches). 

I have just added to your post short video that could help you understand the bot execution in the “Strategy Bot Executor” tool.

I selected two markets and set the start execution time 5 minutes before official event start, and the update interval to 10 seconds.

The bot to execute was: Test of ReportMarketDataChanged, just simple bot trigger script to report total matched volume on the market, or text: “No update!” when no data change or update was detected by bot.

When clicking on Open button the “Strategy Bot Executor” loaded those two markets, and in Output view we could read:

Strategy/Bot Executor: The next strategy/bot execution is scheduled to: 10. 6. 2020 12:40:00

And exactly at: 10. 6. 2020 12:40:00

We can see the message: “The bot Test of ReportMarketDataChanged has been started.”

And after 10 seconds, in the next bot execution cycle:

10. 6. 2020 12:40:10 Total matched: 52.54

And so on every 10 seconds.

Later I had double-clicked on selected market in the “Strategy Bot Executor” view, what means the market had been open in the “Bet Event” view, and as the bot was still active, it started to report:

10. 6. 2020 12:40:47 Total matched: 114.72

10. 6. 2020 12:40:47 No update!

But of course not in 10 seconds interval but 250 milliseconds one, I use for the active market update.

Ok, let's just forget the Betfair bet placing countdowns in Live matches. But if instead of BeTheFirstInQueue, I use a FillorKill or PlaceBet bot (with no delay set on the bot) and Strategy/Bot Executor Udate Interval set to 10 seconds, will it take also 10 seconds for that bet to be placed after 1-0 is scored ? What I really need to know is if Strategy/Bot Executor Update Intervals also delays bet placing or only refers to Betfair data readings. Thank you

When your “BeTheFirstInQueue” bot executes bet placing operation this operation is executed immediately.  

Now depending on in-play status of the market, placed bet is inserted to betfair market immediately (50 – 150 milliseconds, depending on your connection latency to betfair server), or if market is in-play, after in-play delay time expires (on football markets the in-play delay for bet placing is 8-10 seconds).

Yes, if your bot is executed by “Strategy/Bot Executor” tool, and you set update interval to 10 seconds, then your bot “BeTheFirstInQueue” is executed each 10 seconds, so also update of bets is done in this interval when “BeTheFirstInQueue” needs to update your bet, but any bet operation is executed immediately.

I would suggest testing it yourself. Open bfexplorer app and execute your strategy using “Strategy/Bot Executor” tool. Then manually open market in Bet Event view, and just watch how your bets are updated.

On betfair forum:

Sir, I am familiar with many programming languages including python I used to make ML model and simple flask api server app to expose ML model to my bots, as mostly I used .net programming languages for betfair bot programming like C# or my favourite F#, and did not find other way to interoperate between python and .net.

Well yes now I am experimenting with pythonnet to integrate python scripting to my app, for now I support only F# scripts.

I downloaded your library and it is just wrapper for couple api methods, without implementing any app domain or services. Therefore I really wonder to see some examples of using your library in betfair application, as you say: "My personal bots run 24/7 and never fall over due to program bugs, so I must be doing something right." and “It has been downloaded thousands of times and sometimes people say thank you and send me donations because it has saved them many hours of development time.”

Well, my library was not download thousands of times, therefore I believe you have got a lot of sample code, for instance implementing this feature, one of Bet Angle users was asking for:
“how to back the favourite at Betfair SP. I am having problems when the favourite changes late in betting.”

I have done such simple bot script:

Betfair SP Favourite Bot Trigger

And I am really interested to see your python implementation for exact the same simple bot. Your web site was funded in 2008 so I believe your level of expertise is even better than mine. If you show me better solution in python, I will be glad to donate your splendid work and use your library instead of mine.

I think this is clear, I built bespoke apps or bots only for my subscribers:

http://bfexplorer.net/Subscribe

If you want to analyze data on live markets, then this tool may help you:

Betfair Charts Tool

If you want to build bot or app according to your specification:

1) Subscribe

2) Send me your short description for your app and/or bot

I hope you understand that your expectation for the project price can be quite different from my price, therefore use your common sense and calculate my average 30 GBP per working hour to expected amount of work for bot or app.

Of course there is other option for you as I offer Bfexplorer BOT SDK for my subscribers, so if your friend or you, yourself are able to program you can do so, or ask another software developer to do so using Bfexplorer BOT SDK, what is the way I do built bespoke bots or apps for betfair.

I saw this and your other answer. I know you don't work for free. How do I negotiate your contract to develop a system exclusively for me?

This feature is not yet publicly available, so you can use it only when I built for you bespoke bot.

I do not work for free, so depending of complexity of your bot, the price starts from 80 GBP (30 GBP working hour).

I can work for free, when you offer free work for me which I would have any interest in.

Actually this is not bfexplorer trading app. If you have a look at on the video and app title it says: “Bfexplorer – data analyzer”, so it is different app that looks like bfexplrer, but is mainly used to analyze betfair historical data on ladders, and of course back test different bot strategies you can set in bfexplorer trading app.

I cannot afford to buy myself betfair historical data, so when developing this app I used pro historical data provided by my subscriber.

At these days betfair offers for free set of pro historical data, so maybe this app could be used by more subscribers

https://historicdata.betfair.com/

On the other hand I will need some time to implement new features to the app, mainly possibly to move forward or back in data. My first implementation loads all data but starts to reply them from 10 minutes before official market start time. Yes, it is possible to restart replying data.

Therefore this app can be available only to my subscribers, and to those subscribers who can afford to pay my working time to end development of this app, so the app can be used by general user/subscriber.

In the explanation above you say: "I added code to save all traded prices and volume for nominated selection and for the current winner selection, when nominated selection is not the winner."
How should I proceed to build this functionality in my bfexplorer?