substrate-erc20-multi
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substrate-developer-hub
SAMPLE: Implementation of a multi-erc20 token Substrate runtime.
When calling `_transfer()` ```rust fn _transfer( token_id: u32, from: T::AccountId, to: T::AccountId, value: T::TokenBalance, ); ``` If `from == to`, tokens are duplicated. ## To reproduce Run the tests added...
Adds a few tests focusing on transfer functionality (does not test transfer_from/approve or events). One of the tests fails. That's because there is a bug in `transfer()` that allows token...
Updates the project to depend on substrate 2.0 (3ba0f2a2). Code copied from https://github.com/substrate-developer-hub/substrate-node-template/commit/3abe9654b566c7ec89830a05354e3c8ee7340229.
In current state `transfer_from` executes against an `Allowance` entry with `to` as the spender side , which is wrong. The spender side should be verified against the sender of the...
IIUC `transfer_from` needs to notify everyone about the changed allowance after some of it is spent. Presently, the amount used in the `Approval` event is the transaction amount instead of...
In `transfer_from` the allowance subtraction happens before `_transfer` gets the chance to check that `from` has sufficient token funds. As a result the following erroneous scenario is possible: * Alice...
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SAMPLE: Implementation of a multi-erc20 token Substrate runtime.