https://github.com/danforbes/decode-substrate-metadata

The purpose of this project is to learn more about the SCALE codec by using it to decode Substrate metadata :nerd_face:
https://github.com/danforbes/decode-substrate-metadata

Last synced: 2 days ago
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The purpose of this project is to learn more about the SCALE codec by using it to decode Substrate metadata :nerd_face:

• Host: GitHub
• URL: https://github.com/danforbes/decode-substrate-metadata
• Owner: danforbes
• License: unlicense
• Created: 2020-05-23T01:29:48.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2021-05-30T11:27:08.000Z (over 3 years ago)
• Last Synced: 2023-03-05T21:47:15.922Z (over 1 year ago)
• Language: JavaScript
• Size: 18.6 KB
• Stars: 1
• Watchers: 1
• Forks: 2
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Decode Substrate Metadata

[Substrate](https://www.substrate.io/)-based blockchains use the [SCALE](https://www.substrate.io/kb/advanced/codec)

codec to encode data, including [the metadata](https://www.substrate.io/kb/runtime/metadata) that describes the chain.

The purpose of this project is to learn more about the SCALE codec by using it to decode

[`v11` of Substrate metadata](https://crates.parity.io/frame_metadata/struct.RuntimeMetadataV11.html).

## Usage

In order to use this project, you must first install its dependencies:

```

$ yarn

```

Then, use the provided `start` command to fetch the latest metadata from `wss://kusama-rpc.polkadot.io/` and write the

raw metadata to `metadata.scale` & the parsed metadata to `metadata.json`.

```

$ yarn start

```

## Source

All of the code for this project is in a single file, [`index.js`](./index.js). Take a look and see the SCALE codec in

action :nerd_face: