api.at warn Unable to map [u8; 32] to a lookup index

[jiqiang90]

• I'm submitting a ...

• [x] Bug report
• [ ] Feature request
• [ ] Support request
• [ ] Other

• What is the current behavior and expected behavior?

We are recently update to v11, and we found decorated method api.at will throw warning, this flood so all other logs within our app, it also lead other logs monitoring app crashes.

To reproduce this:

const { ApiPromise, WsProvider } = require(`@polkadot/api`)
const provider = new WsProvider('wss://rpc-polkadot.luckyfriday.io');

async function main(){
    const api = await ApiPromise.create({provider});
    // block height 38565
    const apiAt = await api.at('0xad17bc48645d34fb7e7109f047d027d7db21cfda17e4bade2007a247e47f7c79');
}

main().catch(e=>process.exit(1));

this should warn

Unable to map [u8; 32] to a lookup index

• What is the motivation for changing the behavior?

Improved logging

• Please tell us about your environment:

  • Version: 11.0.2

  • Environment:

  • [x] Node.js v18.17.1

  • [ ] Browser

  • [ ] Other (limited support for other environments)

  • Language:

  • [x] JavaScript

  • [ ] TypeScript (include tsc --version)

  • [ ] Other

[TarikGul]

rel: https://github.com/polkadot-js/api/pull/5764

I will have this on the project board queue, but I don't see much that can be done to resolve this. At best we can switch the type of logging so that it can be turned off and or reduced.