Newer
Older
use crate::server::rpc_module::MethodSink;
use futures_channel::mpsc;
use jsonrpsee_types::v2::error::{JsonRpcError, JsonRpcErrorCode, JsonRpcErrorObject};
use jsonrpsee_types::v2::params::{Id, TwoPointZero};
David
committed
use jsonrpsee_types::v2::request::JsonRpcInvalidRequest;
use jsonrpsee_types::v2::response::JsonRpcResponse;
use serde::Serialize;
/// Helper for sending JSON-RPC responses to the client
pub fn send_response(id: Id, tx: &MethodSink, result: impl Serialize) {
let json = match serde_json::to_string(&JsonRpcResponse { jsonrpc: TwoPointZero, id: id.clone(), result }) {
Ok(json) => json,
Err(err) => {
log::error!("Error serializing response: {:?}", err);
return send_error(id, tx, JsonRpcErrorCode::InternalError.into());
if let Err(err) = tx.unbounded_send(json) {
log::error!("Error sending response to the client: {:?}", err)
}
}
/// Helper for sending JSON-RPC errors to the client
pub fn send_error(id: Id, tx: &MethodSink, error: JsonRpcErrorObject) {
let json = match serde_json::to_string(&JsonRpcError { jsonrpc: TwoPointZero, error, id }) {
Ok(json) => json,
Err(err) => {
log::error!("Error serializing error message: {:?}", err);
return;
}
};
if let Err(err) = tx.unbounded_send(json) {
log::error!("Error sending response to the client: {:?}", err)
}
}
David
committed
/// Figure out if this is a sufficiently complete request that we can extract an [`Id`] out of, or just plain
/// unparseable garbage.
pub fn prepare_error(data: &[u8]) -> (Id<'_>, JsonRpcErrorCode) {
match serde_json::from_slice::<JsonRpcInvalidRequest>(&data) {
Ok(JsonRpcInvalidRequest { id }) => (id, JsonRpcErrorCode::InvalidRequest),
Err(_) => (Id::Null, JsonRpcErrorCode::ParseError),
}
}
/// Read all the results of all method calls in a batch request from the ['Stream']. Format the result into a single
/// `String` appropriately wrapped in `[`/`]`.
pub async fn collect_batch_response(rx: mpsc::UnboundedReceiver<String>) -> String {
let mut buf = String::with_capacity(2048);
buf.push('[');
let mut buf = rx
.fold(buf, |mut acc, response| async move {
acc.push_str(&response);