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[package]
name = "bunbun-worker"
version = "0.1.0"
description = "An rpc and non-rpc rabbitmq worker for Mediarose"
edition = "2021"
license = "AGPL-3.0"
authors = ["4o1x5 <4o1x5@4o1x5.dev>"]
[dependencies]
async-trait = "0.1.83"
futures = "0.3.31"
lapin = "2.5.0"
serde = "1.0.213"
serde_json = "1.0.132"
tokio = { version = "1.41.0", features = ["full"] }
tracing = "0.1.40"
uuid = { version = "1.11.0", features = ["v4"] }
[dev-dependencies]
tracing-test = "0.2.5"
test-log = "0.2.16"
tracing = "0.1.40"

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If your software can interact with users remotely through a computer
network, you should also make sure that it provides a way for users to
get its source. For example, if your program is a web application, its
interface could display a "Source" link that leads users to an archive
of the code. There are many ways you could offer source, and different
solutions will be better for different programs; see section 13 for the
specific requirements.
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU AGPL, see
<https://www.gnu.org/licenses/>.

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[licenses]
allow = ["MIT"]

116
flake.lock Normal file
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@ -0,0 +1,116 @@
{
"nodes": {
"advisory-db": {
"flake": false,
"locked": {
"lastModified": 1728933535,
"narHash": "sha256-+EO3jis98fMzG2/JPeFcmWgDxxm4RO0q/TSxiXHoAFs=",
"owner": "rustsec",
"repo": "advisory-db",
"rev": "57c4a0ce3a1a3cdbf9e7eaa16b5441345de50d13",
"type": "github"
},
"original": {
"owner": "rustsec",
"repo": "advisory-db",
"type": "github"
}
},
"crane": {
"locked": {
"lastModified": 1729741221,
"narHash": "sha256-8AHZZXs1lFkERfBY0C8cZGElSo33D/et7NKEpLRmvzo=",
"owner": "ipetkov",
"repo": "crane",
"rev": "f235b656ee5b2bfd6d94c3bfd67896a575d4a6ed",
"type": "github"
},
"original": {
"owner": "ipetkov",
"repo": "crane",
"type": "github"
}
},
"fenix": {
"inputs": {
"nixpkgs": [
"nixpkgs"
],
"rust-analyzer-src": []
},
"locked": {
"lastModified": 1729751566,
"narHash": "sha256-99u/hrgBdi8bxSXZc9ZbNkR5EL1htrkbd3lsbKzS60g=",
"owner": "nix-community",
"repo": "fenix",
"rev": "f32a2d484091a6dc98220b1f4a2c2d60b7c97c64",
"type": "github"
},
"original": {
"owner": "nix-community",
"repo": "fenix",
"type": "github"
}
},
"flake-utils": {
"inputs": {
"systems": "systems"
},
"locked": {
"lastModified": 1726560853,
"narHash": "sha256-X6rJYSESBVr3hBoH0WbKE5KvhPU5bloyZ2L4K60/fPQ=",
"owner": "numtide",
"repo": "flake-utils",
"rev": "c1dfcf08411b08f6b8615f7d8971a2bfa81d5e8a",
"type": "github"
},
"original": {
"owner": "numtide",
"repo": "flake-utils",
"type": "github"
}
},
"nixpkgs": {
"locked": {
"lastModified": 1729690727,
"narHash": "sha256-kpkyedYvqiVvMhHaDaIPqD0tUgT+reMMRjrjnlZ1aQo=",
"owner": "NixOS",
"repo": "nixpkgs",
"rev": "be79af5ec63facf6c7709094db72b253c34e1ac2",
"type": "github"
},
"original": {
"owner": "NixOS",
"ref": "nixpkgs-unstable",
"repo": "nixpkgs",
"type": "github"
}
},
"root": {
"inputs": {
"advisory-db": "advisory-db",
"crane": "crane",
"fenix": "fenix",
"flake-utils": "flake-utils",
"nixpkgs": "nixpkgs"
}
},
"systems": {
"locked": {
"lastModified": 1681028828,
"narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
"owner": "nix-systems",
"repo": "default",
"rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
"type": "github"
},
"original": {
"owner": "nix-systems",
"repo": "default",
"type": "github"
}
}
},
"root": "root",
"version": 7
}

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{
description = "BunBun-worker flake";
inputs = {
nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
crane.url = "github:ipetkov/crane";
fenix = {
url = "github:nix-community/fenix";
inputs.nixpkgs.follows = "nixpkgs";
inputs.rust-analyzer-src.follows = "";
};
flake-utils.url = "github:numtide/flake-utils";
advisory-db = {
url = "github:rustsec/advisory-db";
flake = false;
};
};
outputs = { self, nixpkgs, crane, fenix, flake-utils, advisory-db, ... }:
flake-utils.lib.eachDefaultSystem (system:
let
pkgs = nixpkgs.legacyPackages.${system};
inherit (pkgs) lib;
craneLib = crane.mkLib pkgs;
src = craneLib.cleanCargoSource ./.;
# Common arguments can be set here to avoid repeating them later
commonArgs = {
inherit src;
strictDeps = true;
buildInputs = [
# Add additional build inputs here
] ++ lib.optionals pkgs.stdenv.isDarwin [
# Additional darwin specific inputs can be set here
pkgs.libiconv
];
# Additional environment variables can be set directly
# MY_CUSTOM_VAR = "some value";
};
craneLibLLvmTools = craneLib.overrideToolchain
(fenix.packages.${system}.complete.withComponents [
"cargo"
"llvm-tools"
"rustc"
]);
# Build *just* the cargo dependencies, so we can reuse
# all of that work (e.g. via cachix) when running in CI
cargoArtifacts = craneLib.buildDepsOnly commonArgs;
# Build the actual crate itself, reusing the dependency
# artifacts from above.
bunbun-worker = craneLib.buildPackage (commonArgs // {
inherit cargoArtifacts;
});
in
{
checks = {
# Build the crate as part of `nix flake check` for convenience
inherit bunbun-worker;
# Run clippy (and deny all warnings) on the crate source,
# again, reusing the dependency artifacts from above.
#
# Note that this is done as a separate derivation so that
# we can block the CI if there are issues here, but not
# prevent downstream consumers from building our crate by itself.
bunbun-worker-clippy = craneLib.cargoClippy (commonArgs // {
inherit cargoArtifacts;
cargoClippyExtraArgs = "--all-targets -- --deny warnings";
});
bunbun-worker-doc = craneLib.cargoDoc (commonArgs // {
inherit cargoArtifacts;
});
# Check formatting
bunbun-worker-fmt = craneLib.cargoFmt {
inherit src;
};
bunbun-worker-toml-fmt = craneLib.taploFmt {
src = pkgs.lib.sources.sourceFilesBySuffices src [ ".toml" ];
# taplo arguments can be further customized below as needed
# taploExtraArgs = "--config ./taplo.toml";
};
# Audit dependencies
bunbun-worker-audit = craneLib.cargoAudit {
inherit src advisory-db;
};
# Audit licenses
bunbun-worker-deny = craneLib.cargoDeny {
inherit src;
};
# Run tests with cargo-nextest
# Consider setting `doCheck = false` on `bunbun-worker` if you do not want
# the tests to run twice
bunbun-worker-nextest = craneLib.cargoNextest (commonArgs // {
inherit cargoArtifacts;
partitions = 1;
partitionType = "count";
});
};
packages = {
default = bunbun-worker;
} // lib.optionalAttrs (!pkgs.stdenv.isDarwin) {
bunbun-worker-llvm-coverage = craneLibLLvmTools.cargoLlvmCov (commonArgs // {
inherit cargoArtifacts;
});
};
apps.default = flake-utils.lib.mkApp {
drv = bunbun-worker;
};
devShells.default = craneLib.devShell {
# Inherit inputs from checks.
checks = self.checks.${system};
LIBCLANG_PATH = "${pkgs.llvmPackages_17.libclang.lib}/lib";
RUST_SRC_PATH = "${pkgs.rust.packages.stable.rustPlatform.rustLibSrc}";
packages = with pkgs;[
openssl
pkg-config
libiconv
cargo-hakari
llvmPackages.clang
cmake
];
};
});
}

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# A Rabbit-worker & client
A rust crate to work with RPC and nonRPC calls using rabbitmq.
TODO description...

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use std::{
fmt::{Debug, Display},
str::from_utf8,
time::Instant,
};
use futures::StreamExt;
use lapin::{
options::*, types::FieldTable, types::ShortString, BasicProperties, Channel, Connection,
ConnectionProperties,
};
use serde::{de::DeserializeOwned, Serialize};
use uuid::Uuid;
use crate::ResultHeader;
/// An remote procedure client for rabbitmq (AMQP)
/// With this client you can send messages to a queue that other microservices
/// will process
#[derive(Debug)]
pub struct AMQPClient {
conn: Connection,
}
impl AMQPClient {
/// Creates an rpc client
///
/// # Examples
///
/// ```
/// // Create a client and send a message
/// use jobhandler::client::RpcClient;
/// let client = RpcClient::new("amqp://127.0.0.1:5672", "email_rpc");
/// ```
pub async fn new(address: &str) -> Result<Self, lapin::Error> {
let conn = Connection::connect(address, ConnectionProperties::default()).await?;
tracing::trace!("Created a listener");
Ok(Self { conn })
}
pub async fn rpc_call<T: RPCClientTask + Send + Debug>(
&mut self,
data: T,
queue_name: &str,
) -> Result<T::Result, RpcClientError<T::ErroredResult>>
where
T: Serialize + DeserializeOwned,
{
let now = Instant::now();
let correlation_id = Uuid::new_v4();
// TODO handle errors
tracing::debug!("Creating channel");
let channel = self.conn.create_channel().await.unwrap();
tracing::debug!("Creating callback queue for result/error messages from rpc call");
let callback_queue = channel
.queue_declare(
"",
QueueDeclareOptions {
exclusive: true,
..Default::default()
},
FieldTable::default(),
)
.await
.unwrap();
// TODO handle errors
tracing::debug!(
"Creating consumer to listen for error/result messages {}",
callback_queue.name()
);
let mut consumer = channel
.basic_consume(
callback_queue.name().as_str(),
"",
BasicConsumeOptions {
no_ack: true,
..Default::default()
},
FieldTable::default(),
)
.await
.unwrap();
tracing::debug!("Publishing message for {}", callback_queue.name());
match channel
.basic_publish(
"",
queue_name,
BasicPublishOptions::default(),
serde_json::to_string(&data).unwrap().as_bytes(),
BasicProperties::default()
.with_reply_to(callback_queue.name().clone())
.with_correlation_id(correlation_id.clone().to_string().into()),
)
.await
{
Err(error) => {
tracing::error!("Failed to send job to AMQP queue: {}", error)
}
Ok(confirmation) => match confirmation.await {
Err(error) => {
tracing::error!("AMQP failed to confirm dispatch of job {error}")
}
Ok(confirmation) => {
tracing::info!(
"Sent RPC job of type {} to channel {} Ack: {}",
std::any::type_name::<T>(),
queue_name,
confirmation.is_ack()
);
}
},
}
// TODO implement timeout
tracing::debug!("Awaiting response from callback queue");
let del = loop {
match consumer.next().await {
None => {
tracing::error!("Received empty data after {:?}", now.elapsed());
return Err(RpcClientError::NoReply);
}
Some(del) => match del {
Err(error) => {
tracing::error!(
"Received error as response: {} after: {:?}",
error,
now.elapsed()
);
// Idk if i should nack it?
return Err(RpcClientError::FailedDecode);
}
Ok(del) => {
tracing::debug!("Received response after {:?}", now.elapsed());
break del;
}
},
};
};
// What the fuck is this
tracing::debug!("Decoding headers");
let result_type = match del.properties.headers().to_owned() {
None => {
tracing::error!(
"Got a response with no headers, this might be an issue with version mismatch"
);
return Err(RpcClientError::InvalidResponse);
}
Some(headers) => match headers.inner().get("outcome") {
None => {
tracing::error!("Got a response with no outcome header");
return Err(RpcClientError::InvalidResponse);
}
Some(res) => match res.as_long_string() {
None => {
tracing::error!("Got a response with no headers");
return Err(RpcClientError::InvalidResponse);
}
Some(outcome) => {
match serde_json::from_str::<ResultHeader>(outcome.to_string().as_str()) {
Ok(result_header) => {
tracing::trace!("Result header: {:?}", result_header);
result_header
}
Err(_) => {
tracing::warn!("Received a result header but it's not a type that can be deserailized ");
return Err(RpcClientError::InvalidResponse);
}
}
}
},
},
};
tracing::debug!("Result type is: {result_type}, decoding acorrdingly");
let utf8 = match from_utf8(&del.data) {
Ok(r) => r,
Err(error) => {
tracing::error!("Failed to decode response message to utf8 {error}");
return Err(RpcClientError::FailedDecode);
}
};
let _ = channel.close(0, "byebye").await;
// acking for idk reason
let _ = del.ack(BasicAckOptions::default()).await;
match result_type {
ResultHeader::Error => match serde_json::from_str::<T::ErroredResult>(utf8) {
// get result header
Err(_) => {
tracing::error!("Failed to decode response message to E");
return Err(RpcClientError::FailedDecode);
}
Ok(res) => return Err(RpcClientError::ServerErrored(res)),
},
ResultHeader::Panic => return Err(RpcClientError::ServerPanicked),
ResultHeader::Ok =>
// get result
{
match serde_json::from_str::<T::Result>(utf8) {
Err(_) => {
tracing::error!("Failed to decode response message to R");
return Err(RpcClientError::FailedDecode);
}
Ok(res) => return Ok(res),
}
}
}
// ack message
}
/// Sends a message to the queue
///
/// # Examples
///
/// ```
/// use jobhandler::client::Client;
/// let client = Client::new("amqp://127.0.0.1:5672");
/// let result = client.call(EmailJob::new("someone@example.com", "Hello there"), "email_channel");
/// ```
pub async fn call<T>(&mut self, data: T, queue_name: &str) -> Result<(), ClientError>
where
T: Serialize + DeserializeOwned,
{
let channel = self.conn.create_channel().await.unwrap();
match channel
.basic_publish(
"",
queue_name,
BasicPublishOptions::default(),
serde_json::to_string(&data).unwrap().as_bytes(),
BasicProperties::default(),
)
.await
{
Err(error) => {
tracing::error!("Failed to send job to AMQP queue: {}", error);
let _ = channel.close(0, "byebye").await;
return Err(ClientError::FailedToSend);
}
Ok(confirmation) => match confirmation.await {
Err(error) => {
let _ = channel.close(0, "byebye").await;
tracing::error!("AMQP failed to confirm dispatch of job {error}")
}
Ok(confirmation) => {
let _ = channel.close(0, "byebye").await;
tracing::debug!(
"AMQP confirmed dispatch of job | Acknowledged? {}",
confirmation.is_ack()
)
}
},
}
Ok(())
}
}
#[derive(Debug)]
pub enum RpcClientError<E> {
NoReply,
FailedDecode,
FailedToSend,
InvalidResponse,
ServerErrored(E),
ServerPanicked,
}
#[derive(Debug)]
pub enum ClientError {
FailedToSend,
}
impl Display for ClientError {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
match self {
Self::FailedToSend => write!(f, "Failed to send to queue"),
}
}
}
pub trait RPCClientTask: Sized + Debug + DeserializeOwned {
type Result: Serialize + DeserializeOwned + Debug;
type ErroredResult: Serialize + DeserializeOwned + Debug;
/// A function to display the task
fn display(&self) -> String {
format!("{:?}", self)
}
}

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use futures::{future::BoxFuture, FutureExt, StreamExt};
use lapin::{
options::{
BasicAckOptions, BasicConsumeOptions, BasicNackOptions, BasicPublishOptions,
BasicQosOptions,
},
protocol::basic::Consume,
types::{DeliveryTag, FieldTable, LongString, ShortString},
BasicProperties, Channel, Connection, ConnectionProperties, Consumer,
};
use serde::{de::DeserializeOwned, Deserialize, Serialize};
use std::{
fmt::{Debug, Display},
pin::Pin,
str::from_utf8,
sync::Arc,
};
use tokio::sync::Mutex;
mod client;
mod test;
struct BunBunWorker {
channel: Channel,
consumers: Vec<Consumer>,
handlers: Vec<
Arc<
dyn Fn(
lapin::message::Delivery,
) -> Pin<Box<dyn std::future::Future<Output = ()> + Send>>
+ Send
+ Sync,
>,
>,
}
impl BunBunWorker {
pub async fn new(amqp_server_url: impl Into<String>, limit: Option<u16>) -> Self {
let channel = Self::create_channel(amqp_server_url.into(), limit).await;
BunBunWorker {
channel,
handlers: Vec::new(),
consumers: Vec::new(),
}
}
async fn create_channel(amqp_server_url: String, limit: Option<u16>) -> Channel {
let conn = Connection::connect(&amqp_server_url, ConnectionProperties::default())
.await
.expect("connection error");
match limit {
Some(limit) => {
let channel = conn.create_channel().await.expect("create channel error");
channel
.basic_qos(limit, BasicQosOptions::default())
.await
.expect("Failed to set prefetch amount");
channel
}
None => conn.create_channel().await.expect("create channel error"),
}
}
pub async fn add_rpc_consumer<J: RPCServerTask + 'static + Send>(
&mut self,
queue_name: &str,
consumer_tag: &str,
state: Arc<Mutex<J::State>>,
) where
<J as RPCServerTask>::State: std::marker::Send,
<J as RPCServerTask>::Result: std::marker::Send,
<J as RPCServerTask>::ErroredResult: std::marker::Send,
{
let consumer = self
.channel
.basic_consume(
queue_name,
consumer_tag,
BasicConsumeOptions::default(),
FieldTable::default(),
)
.await
.expect("basic_consume error");
let channel = self.channel.clone();
let handler: Arc<
dyn Fn(
lapin::message::Delivery,
) -> Pin<Box<dyn std::future::Future<Output = ()> + Send>>
+ Send
+ Sync,
> = Arc::new(move |delivery: lapin::message::Delivery| {
let state = Arc::clone(&state);
let channel = channel.clone();
Box::pin(async move {
let routing_key = match delivery.properties.reply_to().as_ref() {
Some(key) => key.clone().to_owned(),
None => {
tracing::warn!("Received a job with no reply_to!");
tracing::trace!("No reply_to for job {:?}, skipping loop", delivery);
let _ = nack(channel.clone(), delivery.delivery_tag).await;
return ();
}
};
// TODO handle errors
let correlation_id = match delivery.properties.correlation_id().clone() {
None => {
tracing::warn!("received a job with no correlation id");
tracing::trace!("no correlation id for delivery {:?}", delivery);
let _ = nack(channel.clone(), delivery.delivery_tag).await;
return ();
}
Some(id) => id,
};
if let Ok(job) = J::decode(delivery.data.clone()) {
// Catching panics
let outcome = tokio::task::spawn(async move { job.run(state).await }).await;
match outcome {
Err(error) => {
tracing::error!("Failed to start thread for worker {}", error);
// TODO return erro
let headers = create_header(ResultHeader::Panic);
let _ = delivery.ack(BasicAckOptions::default()).await; // acking the delivery
respond_to_rpc_queue(
channel.clone(),
routing_key,
headers,
correlation_id,
None::<J::ErroredResult>,
)
.await
}
Ok(Ok(res)) => {
let headers = create_header(ResultHeader::Ok);
let _ = delivery.ack(BasicAckOptions::default()).await; // acking the delivery
respond_to_rpc_queue(
channel.clone(),
routing_key,
headers,
correlation_id,
Some(res),
)
.await
}
Ok(Err(err)) => {
//
let headers = create_header(ResultHeader::Ok);
let _ = delivery.ack(BasicAckOptions::default()).await; // acking the delivery
respond_to_rpc_queue(
channel.clone(),
routing_key,
headers,
correlation_id,
Some(err),
)
.await
}
}
} else {
delivery.nack(BasicNackOptions::default()).await.unwrap();
}
})
});
self.handlers.push(handler);
self.consumers.push(consumer);
}
pub async fn start_all_listeners(&self) {
for (handler, consumer) in self.handlers.iter().zip(self.consumers.iter()) {
let consumer = consumer.clone();
let handler = Arc::clone(handler);
tracing::debug!(
"Listening for incoming messages for queue: {}",
consumer.queue().as_str()
);
tokio::spawn(async move {
consumer
.for_each_concurrent(None, move |delivery| {
let handler = Arc::clone(&handler);
// TODO handle unwrap of delivery
let delivery = delivery.unwrap();
async move {
handler(delivery).await;
}
})
.await;
});
}
// TODO hand the program
}
}
pub trait RPCServerTask: Sized + Debug + DeserializeOwned {
type Result: Serialize + DeserializeOwned + Debug;
type ErroredResult: Serialize + DeserializeOwned + Debug;
type State: Clone + Debug;
fn decode(data: Vec<u8>) -> Result<Self, RabbitDecodeError> {
let job = match from_utf8(&data) {
Err(_) => {
return Err(RabbitDecodeError::NotUtf8);
}
Ok(data) => match serde_json::from_str::<Self>(data) {
Err(_) => return Err(RabbitDecodeError::NotJson),
Ok(data) => data,
},
};
Ok(job)
}
fn run(
self,
state: Arc<Mutex<Self::State>>,
) -> BoxFuture<'static, Result<Self::Result, Self::ErroredResult>>;
/// A function to display the task
fn display(&self) -> String {
format!("{:?}", self)
}
}
#[derive(Debug)]
pub enum RabbitDecodeError {
NotJson,
InvalidField,
NotUtf8,
}
async fn respond_to_rpc_queue(
channel: Channel,
routing_key: ShortString,
headers: FieldTable,
correlation_id: ShortString,
body: Option<impl Serialize + DeserializeOwned>,
) {
match body {
None => {
//
let _ = channel
.basic_publish(
"",
&routing_key.to_string().as_str(),
BasicPublishOptions::default(),
"".as_bytes(),
BasicProperties::default()
.with_correlation_id(correlation_id)
.with_headers(headers),
)
.await;
}
Some(body) => {
// TODO handle errors? idk
let _ = channel
.basic_publish(
"",
&routing_key.to_string().as_str(),
BasicPublishOptions::default(),
serde_json::to_string(&body).unwrap().as_bytes(),
BasicProperties::default()
.with_correlation_id(correlation_id)
.with_headers(headers),
)
.await;
}
}
}
async fn nack(channel: Channel, delivery_tag: DeliveryTag) {
let asd = BasicNackOptions::default();
match channel.basic_nack(delivery_tag, asd).await {
Err(error) => {
tracing::warn!(
"Failed to nack to server about delivery tag: {}, {}",
delivery_tag,
error
)
}
Ok(_) => {
tracing::debug!("Sent nack back to server")
}
}
}
fn create_header(header: ResultHeader) -> FieldTable {
let mut headers = FieldTable::default();
headers.insert(
"outcome".into(),
lapin::types::AMQPValue::LongString(serde_json::to_string(&header).unwrap().into()),
);
headers
}
#[derive(Debug, Serialize, Deserialize)]
pub enum ResultHeader {
Ok,
Error,
Panic,
}
impl Display for ResultHeader {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
match self {
Self::Error => write!(f, "Error"),
Self::Ok => write!(f, "Ok"),
Self::Panic => write!(f, "Panic"),
}
}
}

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#[cfg(test)]
mod test {
use std::{env, os::unix::thread, sync::Arc, time::Duration};
use futures::future::join_all;
use serde::{Deserialize, Serialize};
use test_log::test;
use tokio::{runtime::Builder, signal, sync::Mutex, time::sleep};
use tracing_test::traced_test;
use crate::{
client::{AMQPClient, RPCClientTask},
BunBunWorker, RPCServerTask,
};
#[derive(Clone, Debug)]
pub struct State {
pub something: String,
}
#[derive(Deserialize, Serialize, Clone, Debug)]
pub struct EmailJob {
send_to: String,
contents: String,
}
#[derive(Deserialize, Serialize, Clone, Debug, PartialEq)]
pub struct EmailJobResult {
contents: String,
}
#[derive(Deserialize, Serialize, Clone, Debug)]
pub enum EmailJobResultError {
Errored,
}
#[derive(Deserialize, Serialize, Clone, Debug)]
pub struct PanickingEmailJob {
send_to: String,
contents: String,
}
impl RPCServerTask for EmailJob {
type ErroredResult = EmailJobResultError;
type Result = EmailJobResult;
type State = State;
fn run(
self,
state: Arc<Mutex<Self::State>>,
) -> futures::prelude::future::BoxFuture<'static, Result<Self::Result, Self::ErroredResult>>
{
Box::pin(async move {
tracing::info!("Sent email to {}", self.send_to);
tokio::time::sleep(Duration::from_secs(2)).await;
return Ok(EmailJobResult {
contents: self.contents.clone(),
});
})
}
}
impl RPCServerTask for PanickingEmailJob {
type ErroredResult = EmailJobResultError;
type Result = EmailJobResult;
type State = State;
fn run(
self,
state: Arc<Mutex<Self::State>>,
) -> futures::prelude::future::BoxFuture<'static, Result<Self::Result, Self::ErroredResult>>
{
Box::pin(async move { panic!("Ooops..") })
}
}
impl RPCClientTask for EmailJob {
type ErroredResult = EmailJobResultError;
type Result = EmailJobResult;
}
#[test(tokio::test)]
#[traced_test]
async fn rpc() {
//
let mut listener =
BunBunWorker::new(env::var("AMQP_SERVER_URL").unwrap(), 100.into()).await;
listener
.add_rpc_consumer::<EmailJob>(
"email-emailjob-v1.0.0",
"emailjob",
Arc::new(Mutex::new(State {
something: "test".into(),
})),
)
.await;
tracing::debug!("Starting listener");
listener.start_all_listeners().await;
signal::ctrl_c().await.expect("failed to listen for event");
}
#[test(tokio::test)]
#[traced_test]
async fn rpc_that_will_panic() {
//
let mut listener =
BunBunWorker::new(env::var("AMQP_SERVER_URL").unwrap(), 100.into()).await;
listener
.add_rpc_consumer::<PanickingEmailJob>(
"email-emailjob-v1.0.0",
"emailjob",
Arc::new(Mutex::new(State {
something: "test".into(),
})),
)
.await;
tracing::debug!("Starting listener");
listener.start_all_listeners().await;
signal::ctrl_c().await.expect("failed to listen for event");
}
#[test(tokio::test)]
#[traced_test]
async fn rpc_client() {
//
let mut client = AMQPClient::new(env::var("AMQP_SERVER_URL").unwrap().as_str())
.await
.unwrap();
let result = client
.rpc_call::<EmailJob>(
EmailJob {
send_to: "someone".into(),
contents: "something".into(),
},
"email-emailjob-v1.0.0",
)
.await
.unwrap();
assert_eq!(
result,
EmailJobResult {
contents: "something".to_string()
}
)
}
#[test(tokio::test)]
#[traced_test]
async fn rpc_client_spam_multithread() {
//
let mut client = AMQPClient::new(env::var("AMQP_SERVER_URL").unwrap().as_str())
.await
.unwrap();
let client = Arc::new(Mutex::new(client));
let mut threads = vec![];
for _ in 0..30 {
let client = client.clone();
threads.push(tokio::task::spawn(async move {
client
.clone()
.lock()
.await
.rpc_call::<EmailJob>(
EmailJob {
send_to: "someone".into(),
contents: "something".into(),
},
"email-emailjob-v1.0.0",
)
.await
}));
}
let output = join_all(threads).await;
for outcome in output {
match outcome {
Ok(Ok(res)) => {
//
tracing::info!("Got result: {:?}", res)
}
Ok(Err(error)) => {
panic!(
"Test failed due to the server panicking on the other end: {:?}",
error
)
}
Err(error) => {
panic!("Test failed due to: {}", error)
}
}
}
}
}

13
taplo.toml Normal file
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# Sorts `Cargo.toml` dependencies. All other `.toml` files are formatted with the default config.
#
# https://taplo.tamasfe.dev/configuration/file.html#configuration-file
[formatting]
reorder_keys = false
[[rule]]
include = ["**/Cargo.toml"]
keys = ["dependencies"]
[rule.formatting]
reorder_keys = true