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Update README.md (#1584)

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* Update README.md

Make it clear that Subxt is not just for submitting extrinsics at the top of the README

* And WebAssembly
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James Wilson
2024-05-16 12:21:39 +01:00
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# subxt · ![build](https://github.com/paritytech/subxt/workflows/Rust/badge.svg) [![Latest Version](https://img.shields.io/crates/v/subxt.svg)](https://crates.io/crates/subxt) [![Documentation](https://docs.rs/subxt/badge.svg)](https://docs.rs/subxt)
A library to **sub**mit e**xt**rinsics to a [substrate](https://github.com/paritytech/substrate) node via RPC.
Subxt is a library for interacting with [Substrate](https://github.com/paritytech/polkadot-sdk) based nodes in Rust and WebAssembly. It can:
- Submit Extrinsics (this is where the name comes from).
- Subscribe to blocks, reading the extrinsics and associated events from them.
- Read and iterate over storage values.
- Read constants and custom values from the metadata.
- Call runtime APIs, returning the results.
- Do all of the above via a safe, statically types interface or via a dynamic one when you need the flexibility.
- Compile to WASM and run entirely in the browser.
- Do a bunch of things in a `#[no_std]` environment via the `subxt-core` crate.
- Use a built-in light client (`smoldot`) to interact with chains.
## Usage