abigen for complex contract example about ethereum-development-with-go-book HOT 3 CLOSED

for the uniswap StakingRewards contract, I have invoke it successfuly

But for tether token, abigen error: use --alias for renaming I don't know how to solve it

from ethereum-development-with-go-book.

Looks like the generated ABI has a totalSupply method as well as a _totalSupply method so the problem is the generator will pascal case the names and remove special characters so they both become normalized to TotalSupply which creates an ambiguity conflict.

[
  {
    "constant": true,
    "inputs": [],
    "name": "totalSupply",
    "outputs": [
      {
        "name": "",
        "type": "uint256"
      }
    ],
    "payable": false,
    "type": "function"
  },
  ...
  {
    "constant": true,
    "inputs": [],
    "name": "_totalSupply",
    "outputs": [
      {
        "name": "",
        "type": "uint256"
      }
    ],
    "payable": false,
    "type": "function"
  },
]

The solution is to use the --alias flag to change the name of one the ABI method names to something else so there's no conflict:

abigen --bin=bin/TetherToken.bin --abi=build/TetherToken.abi --pkg=usdt --out=usdt.go --alias _totalSupply=TotalSupply1

from ethereum-development-with-go-book.

@miguelmota got it, thanks for the explain！

from ethereum-development-with-go-book.