lafere-api 0.1.0

A more or less simple communication protocol library.
Documentation 
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#[cfg(feature = "json")]
#[cfg_attr(docsrs, doc(cfg(feature = "json")))]
pub mod json {
	use crate::error::MessageError;
	use crate::message::{Action, Message, PacketBytes};
	use bytes::BytesRead;

	use serde::{de::DeserializeOwned, Serialize};

	pub fn encode<T, A, B>(value: T) -> Result<Message<A, B>, MessageError>
	where
		T: Serialize,
		A: Action,
		B: PacketBytes,
	{
		let mut msg = Message::new();
		serde_json::to_writer(msg.body_mut(), &value)
			.map_err(MessageError::Json)?;

		Ok(msg)
	}

	pub fn decode<A, B, T>(msg: Message<A, B>) -> Result<T, MessageError>
	where
		A: Action,
		B: PacketBytes,
		T: DeserializeOwned,
	{
		serde_json::from_slice(msg.body().as_slice())
			.map_err(MessageError::Json)
	}
}

#[cfg(feature = "protobuf")]
#[cfg_attr(docsrs, doc(cfg(feature = "protobuf")))]
pub mod protobuf {
	use crate::error::MessageError;
	use crate::message::{Action, Message, PacketBytes};
	use bytes::BytesRead;

	use protopuffer::decode::DecodeMessage;
	use protopuffer::encode::{EncodeMessage, MessageEncoder};

	pub fn encode<T, A, B>(mut value: T) -> Result<Message<A, B>, MessageError>
	where
		T: EncodeMessage,
		A: Action,
		B: PacketBytes,
	{
		let mut msg = Message::new();
		let mut encoder = MessageEncoder::new(msg.body_mut());
		value
			.encode(None, &mut encoder)
			.map_err(MessageError::EncodeError)?;

		Ok(msg)
	}

	pub fn decode<A, B, T>(msg: Message<A, B>) -> Result<T, MessageError>
	where
		A: Action,
		B: PacketBytes,
		T: for<'a> DecodeMessage<'a>,
	{
		T::parse_from_bytes(msg.body().as_slice())
			.map_err(MessageError::DecodeError)
	}
}