How to access a Solidity mapping from HardHat

Question

I have a mapping:

mapping(bytes32 => string) requestToCharacterName;

I am trying to access it from HardHat as such:

contract.requestToCharacterName(bytes32)

And receiving the following error:

 TypeError: contract.requestToCharacterName is not a function

What do I need to do in HardHat to properly access this mapping?

Answer 1

Every variable is actually just a view function, however, if no visibility is specified, it will default to internal (per the solidity docs).

You cannot call the view function on an internal function, so, you just need to change the visibility of the mapping to public.

mapping(bytes32 => string) public requestToCharacterName;

Otherwise, you can read directly from storage using something like hardhat-storage-layout.