unable to encode latest metadata with `metadata` codec about polkadot-api HOT 3 CLOSED

If I had to make a guess about what could have happened here, is that perhaps that latest-metadata.json file was generated with an old version of the metadata codec. Please keep in mind that the metadata codec has recently changed. So, if that file was created with the prior codec, then it wont work with the current one.

Yeah, that's what happened: https://gist.github.com/ryanleecode/c0d2b7322f2252378dc50a969bd88772#file-latest_metadata-json-L9-L24

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I tried to reproduce the issue and everything seems to be working fine 🤔.

Please have a look at the test-broken-meta branch, that branch was created after the current main branch and basically what it has is a new package named experiments, which is what I've been using for running different kinds of experiments... Since I already had some code for getting the latest metadata from smoldot, the only thing that I had to do was to try to re-encode it... and everything seems to be working well.

In order to reproduce it, do this: checkout the test-broken-meta branch, run npm i from the root, then run npm run build (also from the root), and then go to packages/experimets and from inside that path run npm start.

Please feel free to make the necessary changes to reproduce the issue.

If I had to make a guess about what could have happened here, is that perhaps that latest-metadata.json file was generated with an old version of the metadata codec. Please keep in mind that the metadata codec has recently changed. So, if that file was created with the prior codec, then it wont work with the current one.

PS: I will be creating a PR later today to add the experiments package into the repo, so that we have a common playground for testing things. That should make everything easier: not just to test stuff, but also to show issues and/or ideas.

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Yup that was indeed the issue. thx for investigating

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