fallback function only works for ether/gas token... you can know how many ether in msg.value inside the fallback function

for erc20 tokens u could use _beforeTokenTransfer or _afterTokenTransfer functions to create a similar functionality

Jun 28, 2022, 11:39 AM

yeah, thats right. but fallback triggered on unknown function signature i.e. direct transfer and direct ERC20 transfer also has msg.data, and i was interested maybe there is some method to get number of received tokens from msg.data

Jun 28, 2022, 11:42 AM

nope

you need to implement a custom function that will be called by the token contract

like deposit()

Jun 28, 2022, 11:48 AM

there's another function like fallback to handle msg.data (so instead of fallback the other one is called and msg.data is filled) but i can't remember the name rn lol

Jun 28, 2022, 11:50 AM

yes, but in my situation i only can use fallback, because it has to be only direct transfer to the sc

i will do more research, thanks )

Jun 28, 2022, 11:51 AM

https://solidity-by-example.org/sending-ether

hope it helps, receive and fallback and explained there

Jun 28, 2022, 11:52 AM

https://ethereum.stackexchange.com/questions/84699/method-like-fallback-function-for-erc20-tokens

Jun 28, 2022, 11:52 AM

@ismailb @FreezyDev thanks guys 👍

Jun 28, 2022, 11:53 AM

fallback function only works for ether/gas token... you can know how many ether in msg.value inside the fallback functionfor erc20 tokens u could use _beforeTokenTransfer or _afterTokenTransfer functions to create a similar functionality

fallback function only works for ether/gas token... you can know how many ether in msg.value inside the fallback function

for erc20 tokens u could use _beforeTokenTransfer or _afterTokenTransfer functions to create a similar functionality