Pinning doesn't work with @helia/json

[juliangruber]

import { createHelia } from 'helia'
import { json } from '@helia/json'

const helia = await createHelia()
const j = json(helia)

const cid = await j.add([{foo:'bar'}])
await helia.pins.add(cid)

Uncaught Error: No dag walker found for cid codec 512
at #walkDag (file:///Users/julian/dev/meridian-ie/measure-service/node_modules/helia/dist/src/pins.js:96:19)
at file:///Users/julian/dev/meridian-ie/measure-service/node_modules/helia/dist/src/pins.js:53:32
at file:///Users/julian/dev/meridian-ie/measure-service/node_modules/p-queue/dist/index.js:111:37
at PQueue._PQueue_tryToStartAnother (file:///Users/julian/dev/meridian-ie/measure-service/node_modules/p-queue/dist/index.js:285:13)

I'm trying to pin data that I imported using @helia/json. Am I doing something wrong?

[juliangruber]

The same does work with @helia/dag-cbor

[achingbrain]

Am I doing something wrong?

No, there's no dag walker configured for the json codec - one is added by #247 which should resolve this issue.