2

I have a constructor like so:

constructor(bytes32[] proposalNames) public {
...

How do I input values for it on deplyoment with remix? I tried ["foo", "bar"] but it said:

creation of Ballot errored: Error encoding arguments: Error: invalid bytes32 value (arg="", coderType="bytes32", value="foo", version=4.0.47)

1
  • 1
    That's because foo and bar aren't bytes32 arguments. Use something like: ["0x0000000000000000000000000000000000000000000000000000000000000001","0x0000000000000000000000000000000000000000000000000000000000000002"]
    – alberto
    Oct 20, 2020 at 16:06

1 Answer 1

6

This:

const Web3 = require("web3");

console.log(Web3.utils.asciiToHex("foo"));
console.log(Web3.utils.asciiToHex("bar"));

Gives:

0x666f6f
0x626172

So I believe that one of the following should work for you:

[0x666f6f, 0x626172]
["0x666f6f", "0x626172"]
[0x666f6f0000000000000000000000000000000000000000000000000000000000, 0x6261720000000000000000000000000000000000000000000000000000000000]
["0x666f6f0000000000000000000000000000000000000000000000000000000000", "0x6261720000000000000000000000000000000000000000000000000000000000"]
1
  • 2
    Thanks - interestingly only the last one worked.
    – nz_21
    Oct 20, 2020 at 16:57

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