I'm developing my own Swap interface that will allow users to swap all ERC20 tokens, but I'd like to create a custom Router and set a small fee, and also collect statistics for the UI.
is there something like this open source for me to take a look at?
This sample here do that, but the developer do not show the code.
since you don't have access to this code, why not use router like that of pancakeswap, uniswap etc that is known and proven.
for two reasons...
1 - I need to charge fees on swaps, something like 0.2%
2 - with a custom router I could have all the metrics I need, like how much was swapped for my swap, how much swaps, etc...