## [encodeUint64(asset_id) doesn't work](https://forum.algorand.co/t/encodeuint64-asset-id-doesnt-work/8572/8)

**Date:** Jan 5, 2023  
**User:** @fabrice

I am also facing same issue with algosdk 1.24.1 and node version 18.12.1, getting error on algosdk.encodeUint64() method.

## [Opt In Stateful Smart Contract](https://forum.algorand.co/t/opt-in-stateful-smart-contract/3640/3)

**Date:** Jun 30, 2021

What if it is not opt in call, I want to write to local state of an account that has opted in stateful smart contract? In that case, I need to pass that account through transaction call?