Encoding a function and passing the returned value to another encoded function

Smart Contracts
1

My current setup has a contract which inherits the AccessControl. The contract is not necessarily deployed prior to me calling various functions on it, so l line up a bunch of function calls prior to deployment using the ethers.js encodeFunctionData. One function, grantRole, I call like so:

  const ABI = (await deployments.getArtifact("StableToken")).abi;
  const iface = new ethers.utils.Interface(ABI);

  calldatas.push(
    iface.encodeFunctionData("grantRole", [
      "0x9f2df0fed2c77648de5860a4cc508cd0818c85b8b8a1ab4ceeef8d981c8956a6",
      issuance.address
    ])
  );

The role I'm granting is called MINTER_ROLE and it is declared in the solidity contract like so:

bytes32 public constant MINTER_ROLE = keccak256("MINTER_ROLE");

and, once the StableToken contract is deployed, I can call it in JS with:

await stableToken.MINTER_ROLE()

As can be seen, the role is hardcoded. Instead, I'm wondering if there is a way to call stableToken.MINTER_ROLE() using encodeFunctionData (or some other method) and then passing it to the grantRole call, something like:

  const ABI = (await deployments.getArtifact("StableToken")).abi;
  const iface = new ethers.utils.Interface(ABI);

  const role = iface.encodeFunctionData("MINTER_ROLE");

  calldatas.push(
    iface.encodeFunctionData("grantRole", [
      role,
      issuance.address
    ])
  );

Not that the above works, but the idea would be that MINTER_ROLE() could be encoded and then the calls result could be passed to the grantRole function.

Is this even possible? If so, how to I get the first encoded function data into the second encoded function data? I'm using the propose method available in OpenZeppelin's Governor, with the calls lined up in calldata.