ethereum.decode does not recognise bool datatype

[0xxlegolas]

Having this weird issue. Whenever there is bool type in the args ethereum.decode throws error : with message: unexpected null here is the code :

let data = Bytes.fromHexString("0x010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000a")
let decoded = ethereum.decode("(bool,uint256,uint256)", data)!;

Expected values are : (true, 0, 10)

You can try this with the below combination as well.

let data = Bytes.fromHexString("0x01")
let decoded = ethereum.decode("(bool)", data)!; //this returns null

Any workaround for this ?

[azf20]

hey @0xxlegolas not sure what your exact use case is so may not help, but there are some examples on encoding and decoding booleans here: https://github.com/graphprotocol/graph-node/blob/6a7806cc465949ebb9e5b8269eeb763857797efc/tests/integration-tests/host-exports/src/mapping.ts#L72

[0xxlegolas]

@azf20 Yes I have seen these examples. And I found out the issue. Apparently the bool value is 0x01 is not recognised by ethereum.encode. It only recognises 0x0000000000000000000000000000000000000000000000000000000000000001 as a bool where is bool is encoded as uint256 value.

Below does not works

let value = ethereum.decode("bool", Bytes.fromHexString("0x01"))

Below works

let value = ethereum.decode("bool", Bytes.fromHexString("0x0000000000000000000000000000000000000000000000000000000000000001"))

[azf20]

OK great - closing as I think you have resolved, but reopen if you think a change in functionality is required here