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use flate2::read::ZlibDecoder;
use crate::gateway::WsClient;
use crate::internal::prelude::*;
use serde_json;
use tungstenite::Message;
pub trait ReceiverExt {
fn recv_json(&mut self) -> Result<Option<Value>>;
}
pub trait SenderExt {
fn send_json(&mut self, value: &Value) -> Result<()>;
}
impl ReceiverExt for WsClient {
fn recv_json(&mut self) -> Result<Option<Value>> {
Ok(match self.read_message()? {
Message::Binary(bytes) => {
serde_json::from_reader(ZlibDecoder::new(&bytes[..]))
.map(Some)
.map_err(|why| {
warn!("Err deserializing bytes: {:?}; bytes: {:?}", why, bytes);
why
})?
},
Message::Text(payload) => {
serde_json::from_str(&payload).map(Some).map_err(|why| {
warn!(
"Err deserializing text: {:?}; text: {}",
why,
payload,
);
why
})?
},
Message::Ping(x) => {
self.write_message(Message::Pong(x)).map_err(Error::from)?;
None
},
Message::Pong(_) => None,
})
}
}
impl SenderExt for WsClient {
fn send_json(&mut self, value: &Value) -> Result<()> {
serde_json::to_string(value)
.map(Message::Text)
.map_err(Error::from)
.and_then(|m| self.write_message(m).map_err(Error::from))
}
}
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