Hi, guys, I am writing BEP20 token contract, how can I take bnb as commission in token contract when user swap bnb for token?

you need to be on a BNB network and that's gonna be your native currency and the rest should be the same as usual erc20

I am also doing on BSC network now, not sure how to get BNB in my BEP20 contract.

Go read existing token contracts that have taxes

As my understanding, these taxes are my token, not a BNB. I want to get these fee from BNB amount which user purchased by BNB.

Yes, you are correct, the taxes are taken in the token whose contract you are deploying and users are trading. How does someone typically go from a token to BNB?

(this approach is taken in many contracts for doing things like periodically adding liquidity using taxes)

inbox me

ok