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Update docs in types-support for retrieving metadata for typegen #5809

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Mar 7, 2024
Merged

Update docs in types-support for retrieving metadata for typegen #5809

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Update docs in types-support for retrieving metadata for typegen
TarikGul Mar 7, 2024
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TarikGul Mar 7, 2024
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TarikGul Mar 7, 2024
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Update packages/types-support/src/metadata/README.md
TarikGul Mar 7, 2024
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Update packages/types-support/src/metadata/README.md
TarikGul Mar 7, 2024
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20 changes: 20 additions & 0 deletions packages/types-support/src/metadata/README.md
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Expand Up @@ -8,6 +8,26 @@ Clone the [polkadot-sdk](https://github.com/paritytech/polkadot-sdk) repository

`--dev` sets the flag `--tmp` automatically so there is no need for purging the dev db.

For Polkadot & Kusama -

Clone the [polkadot-fellows/runtimes](https://github.com/polkadot-fellows/runtimes/tree/main) repository and from the ROOT run:

```bash
$ unset SKIP_WASM_BUILD
$ cargo build --release -p chain-spec-generator --features fast-runtime
$ ./target/release/chain-spec-generator polkadot-dev > polkadotDevChainSpec.json
```

Note: For kusama just change the `polkadotDevChainSpec.json` to `kusamaDevChainSpec.json`.

Clone the [polkadot-sdk](https://github.com/paritytech/polkadot-sdk) repository and from the ROOT run:

```bash
$ cargo build --release --bin polkadot-prepare-worker --features fast-runtime
$ cargo build --release --bin polkadot-execute-worker --features fast-runtime
$ ./target/release/polkadot --chain polkadotDevChainSpec.json
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```

To retrieve the metadata -

`curl -H "Content-Type: application/json" -d '{"id":"1", "jsonrpc":"2.0", "method": "state_getMetadata", "params":[]}' http://localhost:9944`
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