mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-04-27 01:07:57 +00:00
Liu-Cheng Xu
cef6d697b8
When we build a `Client` for a substrate chain, we can only access the methods exposed in `Client` which does not cover all the RPC interfaces in the chain, it's not feasible to request the methods like `chain_getKeys` with `Client` only. The downstream user of this library has to build another `RpcClient` for the uncovered RPC interfaces, which can be unneccessary.
subxt · 
A library to submit extrinsics to a substrate node via RPC.
Usage
See examples.
Integration Testing
Most tests require a running substrate node to communicate with. This is done by spawning an instance of the
substrate node per test. It requires an executable binary substrate at v3.0.0 on your path.
This can be done by downloading the prebuilt binary:
curl "https://releases.parity.io/substrate/x86_64-debian:stretch/v3.0.0/substrate/substrate" --output substrate --location
chmod +x ./substrate
mv substrate ~/.local/bin
Or installed from source via cargo:
cargo install --git https://github.com/paritytech/substrate node-cli --tag=v3.0.0 --force
Alternatives
substrate-api-client provides similar functionality.
Subxt Client
By default the client builder will connect to a full node via rpc. The subxt-client helps
embedding a light client directly. It can also be used to embed a full node. This is especially
useful for testing and ci.