mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-05-01 12:27:56 +00:00
Add light client platform WASM compatible (#1026)
* Cargo update in prep for wasm build Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * Add light client test Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * Implement low level socket Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * Add native platform primitives Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * Add wasm platform primitives Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * Implement smoldot platform Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * Adjust code to use custom platform Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * Adjust feature flags Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * tests: Adjust wasm endpoint to accept ws for p2p Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * Adjust wasm socket Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * Book mention of wasm Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * ci: Propagate env variable properly Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * subxt: Revert to native feature flags Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * cli: Use tokio rt-multi-thread feature Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * subxt: Add tokio feature flags for native platform Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * wasm: Use polkadot live for wasm testing Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * wasm: Add support for DNS p2p addresses Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * wasm: Disable logs Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * wasm: Run wasm test for firefox driver Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * wasm: Reenable chrome driver Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * Move lightclient RPC to dedicated crate for better feature flags and modularity Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * Use subxt-lightclient low level RPC crate Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * Apply cargo fmt Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * Enable default:native feature for cargo check Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * ci: Extra step for subxt-lightclient similar to signer crate Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * Remove native platform code and use smoldot instead Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * codegen: Enable tokio/multi-threads Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * lightclient: Refactor modules Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * Adjust testing crates Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * ci: Run light-client WASM tests Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * wasm-rpc: Remove light-client imports Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * testing: Update wasm cargo.lock files Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * ci: Spawn substrate node with deterministic p2p address for WASM tests Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * wasm_socket: Use rc and refcell Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * wasm_socket: Switch back to Arc<Mutex<>> Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * Add comments Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> --------- Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>
This commit is contained in:
Alexandru Vasile
@@ -0,0 +1,114 @@
|
||||
// Copyright 2019-2023 Parity Technologies (UK) Ltd.
|
||||
// This file is dual-licensed as Apache-2.0 or GPL-3.0.
|
||||
// see LICENSE for license details.
|
||||
|
||||
use super::{
|
||||
background::{BackgroundTask, FromSubxt, MethodResponse},
|
||||
LightClientRpcError,
|
||||
};
|
||||
use serde_json::value::RawValue;
|
||||
use tokio::sync::{mpsc, mpsc::error::SendError, oneshot};
|
||||
|
||||
use super::platform::build_platform;
|
||||
|
||||
pub const LOG_TARGET: &str = "light-client";
|
||||
|
||||
/// The light-client RPC implementation that is used to connect with the chain.
|
||||
#[derive(Clone)]
|
||||
pub struct LightClientRpc {
|
||||
/// Communicate with the backend task that multiplexes the responses
|
||||
/// back to the frontend.
|
||||
to_backend: mpsc::UnboundedSender<FromSubxt>,
|
||||
}
|
||||
|
||||
impl LightClientRpc {
|
||||
/// Constructs a new [`LightClientRpc`], providing the chain specification.
|
||||
///
|
||||
/// The chain specification can be downloaded from a trusted network via
|
||||
/// the `sync_state_genSyncSpec` RPC method. This parameter expects the
|
||||
/// chain spec in text format (ie not in hex-encoded scale-encoded as RPC methods
|
||||
/// will provide).
|
||||
///
|
||||
/// ## Panics
|
||||
///
|
||||
/// Panics if being called outside of `tokio` runtime context.
|
||||
pub fn new(
|
||||
config: smoldot_light::AddChainConfig<'_, (), impl Iterator<Item = smoldot_light::ChainId>>,
|
||||
) -> Result<LightClientRpc, LightClientRpcError> {
|
||||
tracing::trace!(target: LOG_TARGET, "Create light client");
|
||||
|
||||
let mut client = smoldot_light::Client::new(build_platform());
|
||||
|
||||
let smoldot_light::AddChainSuccess {
|
||||
chain_id,
|
||||
json_rpc_responses,
|
||||
} = client
|
||||
.add_chain(config)
|
||||
.map_err(|err| LightClientRpcError::AddChainError(err.to_string()))?;
|
||||
|
||||
let (to_backend, backend) = mpsc::unbounded_channel();
|
||||
|
||||
// `json_rpc_responses` can only be `None` if we had passed `json_rpc: Disabled`.
|
||||
let rpc_responses = json_rpc_responses.expect("Light client RPC configured; qed");
|
||||
|
||||
let future = async move {
|
||||
let mut task = BackgroundTask::new(client, chain_id);
|
||||
task.start_task(backend, rpc_responses).await;
|
||||
};
|
||||
|
||||
#[cfg(feature = "native")]
|
||||
tokio::spawn(future);
|
||||
#[cfg(feature = "web")]
|
||||
wasm_bindgen_futures::spawn_local(future);
|
||||
|
||||
Ok(LightClientRpc { to_backend })
|
||||
}
|
||||
|
||||
/// Submits an RPC method request to the light-client.
|
||||
///
|
||||
/// This method sends a request to the light-client to execute an RPC method with the provided parameters.
|
||||
/// The parameters are parsed into a valid JSON object in the background.
|
||||
pub fn method_request(
|
||||
&self,
|
||||
method: String,
|
||||
params: String,
|
||||
) -> Result<oneshot::Receiver<MethodResponse>, SendError<FromSubxt>> {
|
||||
let (sender, receiver) = oneshot::channel();
|
||||
|
||||
self.to_backend.send(FromSubxt::Request {
|
||||
method,
|
||||
params,
|
||||
sender,
|
||||
})?;
|
||||
|
||||
Ok(receiver)
|
||||
}
|
||||
|
||||
/// Makes an RPC subscription call to the light-client.
|
||||
///
|
||||
/// This method sends a request to the light-client to establish an RPC subscription with the provided parameters.
|
||||
/// The parameters are parsed into a valid JSON object in the background.
|
||||
pub fn subscription_request(
|
||||
&self,
|
||||
method: String,
|
||||
params: String,
|
||||
) -> Result<
|
||||
(
|
||||
oneshot::Receiver<MethodResponse>,
|
||||
mpsc::UnboundedReceiver<Box<RawValue>>,
|
||||
),
|
||||
SendError<FromSubxt>,
|
||||
> {
|
||||
let (sub_id, sub_id_rx) = oneshot::channel();
|
||||
let (sender, receiver) = mpsc::unbounded_channel();
|
||||
|
||||
self.to_backend.send(FromSubxt::Subscription {
|
||||
method,
|
||||
params,
|
||||
sub_id,
|
||||
sender,
|
||||
})?;
|
||||
|
||||
Ok((sub_id_rx, receiver))
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user