is there a way of getting an estimate on the combined routing fees before desciding to pay a bolt11 invoice in LDK?

[diegovelascommerce]

Hello, I'm working on a project that is integrating lighting payment into a workout app.
The client is asking is there a way to at least show what could be the estimated routing fees that the client would have to pay
in addition to the amount specified in the bolt11?

is there a way I could implement that?

and suggestions or feed back would be appreciated.

Regards,

Diego

[tnull]

Yes, you could retrieve a Route via your Router's find_route and then call Route::get_total_fees() before you go ahead and pay to that route via ChannelManager::send_payment_with_route.

Also, while this unfortunately just slipped the upcoming 0.0.116 release, you will be able to set a max total fee when calculating a route in the future, see #2339.

[diegovelascommerce]

thank you. I'll look into it