feat: adding rpc interfaces into sequencer and node

Cargo.toml

@@ -14,7 +14,8 @@ members = [
     "mempool",
     "zkvm", 
     "node_core", 
-    "sequencer_core",
+    "sequencer_core", 
+    "rpc_primitives",
 ]
 
 [workspace.dependencies]
@@ -23,6 +24,9 @@ num_cpus = "1.13.1"
 openssl = { version = "0.10", features = ["vendored"] }
 openssl-probe = { version = "0.1.2" }
 serde_json = "1.0.81"
+actix = "0.13.0"
+actix-cors = "0.6.1"
+futures = "0.3"
 
 env_logger = "0.10"
 log = "0.4"

consensus/src/lib.rs

@@ -1 +1 @@
-//ToDo: Add consensus module
+//ToDo: Add consensus module

mempool/src/lib.rs

@@ -1 +1 @@
-//ToDo: Add mempool module
+//ToDo: Add mempool module

networking/src/lib.rs

@@ -1 +1 @@
-//ToDo: Add networking module
+//ToDo: Add networking module

node_core/src/lib.rs

@@ -1 +1 @@
-//ToDo: Add node_core module
+//ToDo: Add node_core module

node_rpc/Cargo.toml

@@ -9,6 +9,9 @@ serde_json.workspace = true
 env_logger.workspace = true
 log.workspace = true
 serde.workspace = true
+actix.workspace = true
+actix-cors.workspace = true
+futures.workspace = true
 
 actix-web.workspace = true
 
@@ -34,4 +37,7 @@ path = "../vm"
 path = "../zkvm"
 
 [dependencies.node_core]
-path = "../node_core"
+path = "../node_core"
+
+[dependencies.rpc_primitives]
+path = "../rpc_primitives"

node_rpc/src/lib.rs

@@ -1 +1,39 @@
-//ToDo: Add node_rpc module
+pub mod net_utils;
+pub mod process;
+pub mod types;
+
+use rpc_primitives::{
+    errors::{RpcError, RpcErrorKind},
+    RpcPollingConfig,
+};
+use serde::Serialize;
+use serde_json::Value;
+
+pub use net_utils::*;
+
+use self::types::err_rpc::RpcErr;
+
+//ToDo: Add necessary fields
+pub struct JsonHandler {
+    pub polling_config: RpcPollingConfig,
+}
+
+fn respond<T: Serialize>(val: T) -> Result<Value, RpcErr> {
+    Ok(serde_json::to_value(val)?)
+}
+
+pub fn rpc_error_responce_inverter(err: RpcError) -> RpcError {
+    let mut content: Option<Value> = None;
+    if err.error_struct.is_some() {
+        content = match err.error_struct.clone().unwrap() {
+            RpcErrorKind::HandlerError(val) | RpcErrorKind::InternalError(val) => Some(val),
+            RpcErrorKind::RequestValidationError(vall) => Some(serde_json::to_value(vall).unwrap()),
+        };
+    }
+    RpcError {
+        error_struct: None,
+        code: err.code,
+        message: err.message,
+        data: content,
+    }
+}

node_rpc/src/net_utils.rs

@@ -0,0 +1,64 @@
+use std::io;
+
+use actix_cors::Cors;
+use actix_web::{http, middleware, web, App, Error as HttpError, HttpResponse, HttpServer};
+use futures::Future;
+use futures::FutureExt;
+use log::info;
+
+use rpc_primitives::message::Message;
+use rpc_primitives::RpcConfig;
+
+use super::JsonHandler;
+
+pub const SHUTDOWN_TIMEOUT_SECS: u64 = 10;
+
+fn rpc_handler(
+    message: web::Json<Message>,
+    handler: web::Data<JsonHandler>,
+) -> impl Future<Output = Result<HttpResponse, HttpError>> {
+    let response = async move {
+        let message = handler.process(message.0).await?;
+        Ok(HttpResponse::Ok().json(&message))
+    };
+    response.boxed()
+}
+
+fn get_cors(cors_allowed_origins: &[String]) -> Cors {
+    let mut cors = Cors::permissive();
+    if cors_allowed_origins != ["*".to_string()] {
+        for origin in cors_allowed_origins {
+            cors = cors.allowed_origin(origin);
+        }
+    }
+    cors.allowed_methods(vec!["GET", "POST"])
+        .allowed_headers(vec![http::header::AUTHORIZATION, http::header::ACCEPT])
+        .allowed_header(http::header::CONTENT_TYPE)
+        .max_age(3600)
+}
+
+#[allow(clippy::too_many_arguments)]
+pub fn new_http_server(config: RpcConfig) -> io::Result<actix_web::dev::Server> {
+    let RpcConfig {
+        addr,
+        cors_allowed_origins,
+        polling_config,
+        limits_config,
+    } = config;
+    info!(target:"network", "Starting http server at {}", addr);
+    let handler = web::Data::new(JsonHandler { polling_config });
+
+    // HTTP server
+    Ok(HttpServer::new(move || {
+        App::new()
+            .wrap(get_cors(&cors_allowed_origins))
+            .app_data(handler.clone())
+            .app_data(web::JsonConfig::default().limit(limits_config.json_payload_max_size))
+            .wrap(middleware::Logger::default())
+            .service(web::resource("/").route(web::post().to(rpc_handler)))
+    })
+    .bind(addr)?
+    .shutdown_timeout(SHUTDOWN_TIMEOUT_SECS)
+    .disable_signals()
+    .run())
+}

node_rpc/src/process.rs

@@ -0,0 +1,53 @@
+use actix_web::Error as HttpError;
+use serde_json::Value;
+
+use rpc_primitives::{
+    errors::RpcError,
+    message::{Message, Request},
+    parser::RpcRequest,
+};
+
+use crate::{
+    rpc_error_responce_inverter,
+    types::rpc_structs::{HelloRequest, HelloResponse},
+};
+
+use super::{respond, types::err_rpc::RpcErr, JsonHandler};
+
+impl JsonHandler {
+    pub async fn process(&self, message: Message) -> Result<Message, HttpError> {
+        let id = message.id();
+        if let Message::Request(request) = message {
+            let message_inner = self
+                .process_request_internal(request)
+                .await
+                .map_err(|e| e.0)
+                .map_err(rpc_error_responce_inverter);
+            Ok(Message::response(id, message_inner))
+        } else {
+            Ok(Message::error(RpcError::parse_error(
+                "JSON RPC Request format was expected".to_owned(),
+            )))
+        }
+    }
+
+    #[allow(clippy::unused_async)]
+    ///Example of request processing
+    async fn process_temp_hello(&self, request: Request) -> Result<Value, RpcErr> {
+        let _hello_request = HelloRequest::parse(Some(request.params))?;
+
+        let helperstruct = HelloResponse {
+            greeting: "HELLO_FROM_NODE".to_string(),
+        };
+
+        respond(helperstruct)
+    }
+
+    pub async fn process_request_internal(&self, request: Request) -> Result<Value, RpcErr> {
+        match request.method.as_ref() {
+            //Todo : Add handling of more JSON RPC methods
+            "hello" => self.process_temp_hello(request).await,
+            _ => Err(RpcErr(RpcError::method_not_found(request.method))),
+        }
+    }
+}

node_rpc/src/types/err_rpc.rs

@@ -0,0 +1,47 @@
+use log::debug;
+
+use rpc_primitives::errors::{RpcError, RpcParseError};
+
+pub struct RpcErr(pub RpcError);
+
+pub type RpcErrInternal = anyhow::Error;
+
+pub trait RpcErrKind: 'static {
+    fn into_rpc_err(self) -> RpcError;
+}
+
+impl<T: RpcErrKind> From<T> for RpcErr {
+    fn from(e: T) -> Self {
+        Self(e.into_rpc_err())
+    }
+}
+
+macro_rules! standard_rpc_err_kind {
+    ($type_name:path) => {
+        impl RpcErrKind for $type_name {
+            fn into_rpc_err(self) -> RpcError {
+                self.into()
+            }
+        }
+    };
+}
+standard_rpc_err_kind!(RpcError);
+standard_rpc_err_kind!(RpcParseError);
+
+impl RpcErrKind for serde_json::Error {
+    fn into_rpc_err(self) -> RpcError {
+        RpcError::serialization_error(&self.to_string())
+    }
+}
+
+impl RpcErrKind for RpcErrInternal {
+    fn into_rpc_err(self) -> RpcError {
+        RpcError::new_internal_error(None, &format!("{self:#?}"))
+    }
+}
+
+#[allow(clippy::needless_pass_by_value)]
+pub fn from_rpc_err_into_anyhow_err(rpc_err: RpcError) -> anyhow::Error {
+    debug!("Rpc error cast to anyhow error : err {rpc_err:?}");
+    anyhow::anyhow!(format!("{rpc_err:#?}"))
+}

node_rpc/src/types/mod.rs

@@ -0,0 +1,3 @@
+pub mod err_rpc;
+pub mod parse;
+pub mod rpc_structs;

node_rpc/src/types/parse.rs

@@ -0,0 +1 @@
+

node_rpc/src/types/rpc_structs.rs

@@ -0,0 +1,16 @@
+use rpc_primitives::errors::RpcParseError;
+use rpc_primitives::parse_request;
+use rpc_primitives::parser::parse_params;
+use rpc_primitives::parser::RpcRequest;
+use serde::{Deserialize, Serialize};
+use serde_json::Value;
+
+#[derive(Serialize, Deserialize, Debug)]
+pub struct HelloRequest {}
+
+parse_request!(HelloRequest);
+
+#[derive(Serialize, Deserialize, Debug)]
+pub struct HelloResponse {
+    pub greeting: String,
+}

node_runner/Cargo.toml

@@ -9,6 +9,7 @@ serde_json.workspace = true
 env_logger.workspace = true
 log.workspace = true
 serde.workspace = true
+actix.workspace = true
 
 actix-web.workspace = true
 tokio.workspace = true
@@ -38,4 +39,7 @@ path = "../zkvm"
 path = "../node_rpc"
 
 [dependencies.node_core]
-path = "../node_core"
+path = "../node_core"
+
+[dependencies.rpc_primitives]
+path = "../rpc_primitives"

node_runner/src/lib.rs

@@ -0,0 +1,17 @@
+use anyhow::Result;
+use log::info;
+use node_rpc::new_http_server;
+use rpc_primitives::RpcConfig;
+
+pub async fn main_runner() -> Result<()> {
+    env_logger::init();
+
+    let http_server = new_http_server(RpcConfig::default())?;
+    info!("HTTP server started");
+    let _http_server_handle = http_server.handle();
+    tokio::spawn(http_server);
+
+    loop {
+        //ToDo: Insert activity into main loop
+    }
+}

node_runner/src/main.rs

@@ -1,5 +1,16 @@
-//ToDo: Add node_runner module
+use anyhow::Result;
 
-fn main() {
+use node_runner::main_runner;
-    println!("Hello, world!");
+
+pub const NUM_THREADS: usize = 4;
+
+fn main() -> Result<()> {
+    actix::System::with_tokio_rt(|| {
+        tokio::runtime::Builder::new_multi_thread()
+            .worker_threads(NUM_THREADS)
+            .enable_all()
+            .build()
+            .unwrap()
+    })
+    .block_on(main_runner())
 }

rpc_primitives/Cargo.toml

@@ -0,0 +1,11 @@
+[package]
+name = "rpc_primitives"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+anyhow.workspace = true
+serde_json.workspace = true
+env_logger.workspace = true
+log.workspace = true
+serde.workspace = true

rpc_primitives/src/errors.rs

@@ -0,0 +1,185 @@
+use serde_json::{to_value, Value};
+use std::fmt;
+
+#[derive(serde::Serialize)]
+pub struct RpcParseError(pub String);
+
+/// This struct may be returned from JSON RPC server in case of error
+/// It is expected that that this struct has impls From<_> all other RPC errors
+/// like [`RpcBlockError`](crate::types::blocks::RpcBlockError)
+#[derive(Debug, serde::Serialize, serde::Deserialize, Clone, PartialEq)]
+#[serde(deny_unknown_fields)]
+pub struct RpcError {
+    #[serde(flatten)]
+    pub error_struct: Option<RpcErrorKind>,
+    /// Deprecated please use the `error_struct` instead
+    pub code: i64,
+    /// Deprecated please use the `error_struct` instead
+    pub message: String,
+    /// Deprecated please use the `error_struct` instead
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub data: Option<Value>,
+}
+
+#[derive(Debug, serde::Serialize, serde::Deserialize, Clone, PartialEq)]
+#[serde(tag = "name", content = "cause", rename_all = "SCREAMING_SNAKE_CASE")]
+pub enum RpcErrorKind {
+    RequestValidationError(RpcRequestValidationErrorKind),
+    HandlerError(Value),
+    InternalError(Value),
+}
+
+#[derive(Debug, serde::Serialize, serde::Deserialize, Clone, PartialEq)]
+#[serde(tag = "name", content = "info", rename_all = "SCREAMING_SNAKE_CASE")]
+pub enum RpcRequestValidationErrorKind {
+    MethodNotFound { method_name: String },
+    ParseError { error_message: String },
+}
+
+/// A general Server Error
+#[derive(serde::Serialize, serde::Deserialize, Debug, PartialEq, Eq, Clone)]
+pub enum ServerError {
+    Timeout,
+    Closed,
+}
+
+impl RpcError {
+    /// A generic constructor.
+    ///
+    /// Mostly for completeness, doesn't do anything but filling in the corresponding fields.
+    pub fn new(code: i64, message: String, data: Option<Value>) -> Self {
+        RpcError {
+            code,
+            message,
+            data,
+            error_struct: None,
+        }
+    }
+
+    /// Create an Invalid Param error.
+    pub fn invalid_params(data: impl serde::Serialize) -> Self {
+        let value = match to_value(data) {
+            Ok(value) => value,
+            Err(err) => {
+                return Self::server_error(Some(format!(
+                    "Failed to serialize invalid parameters error: {:?}",
+                    err.to_string()
+                )))
+            }
+        };
+        RpcError::new(-32_602, "Invalid params".to_owned(), Some(value))
+    }
+
+    /// Create a server error.
+    pub fn server_error<E: serde::Serialize>(e: Option<E>) -> Self {
+        RpcError::new(
+            -32_000,
+            "Server error".to_owned(),
+            e.map(|v| to_value(v).expect("Must be representable in JSON")),
+        )
+    }
+
+    /// Create a parse error.
+    pub fn parse_error(e: String) -> Self {
+        RpcError {
+            code: -32_700,
+            message: "Parse error".to_owned(),
+            data: Some(Value::String(e.clone())),
+            error_struct: Some(RpcErrorKind::RequestValidationError(
+                RpcRequestValidationErrorKind::ParseError { error_message: e },
+            )),
+        }
+    }
+
+    pub fn serialization_error(e: &str) -> Self {
+        RpcError::new_internal_error(Some(Value::String(e.to_owned())), e)
+    }
+
+    /// Helper method to define extract `INTERNAL_ERROR` in separate `RpcErrorKind`
+    /// Returns `HANDLER_ERROR` if the error is not internal one
+    pub fn new_internal_or_handler_error(error_data: Option<Value>, error_struct: Value) -> Self {
+        if error_struct["name"] == "INTERNAL_ERROR" {
+            let error_message = match error_struct["info"].get("error_message") {
+                Some(Value::String(error_message)) => error_message.as_str(),
+                _ => "InternalError happened during serializing InternalError",
+            };
+            Self::new_internal_error(error_data, error_message)
+        } else {
+            Self::new_handler_error(error_data, error_struct)
+        }
+    }
+
+    pub fn new_internal_error(error_data: Option<Value>, info: &str) -> Self {
+        RpcError {
+            code: -32_000,
+            message: "Server error".to_owned(),
+            data: error_data,
+            error_struct: Some(RpcErrorKind::InternalError(serde_json::json!({
+                "name": "INTERNAL_ERROR",
+                "info": serde_json::json!({"error_message": info})
+            }))),
+        }
+    }
+
+    fn new_handler_error(error_data: Option<Value>, error_struct: Value) -> Self {
+        RpcError {
+            code: -32_000,
+            message: "Server error".to_owned(),
+            data: error_data,
+            error_struct: Some(RpcErrorKind::HandlerError(error_struct)),
+        }
+    }
+
+    /// Create a method not found error.
+    pub fn method_not_found(method: String) -> Self {
+        RpcError {
+            code: -32_601,
+            message: "Method not found".to_owned(),
+            data: Some(Value::String(method.clone())),
+            error_struct: Some(RpcErrorKind::RequestValidationError(
+                RpcRequestValidationErrorKind::MethodNotFound {
+                    method_name: method,
+                },
+            )),
+        }
+    }
+}
+
+impl fmt::Display for RpcError {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(f, "{self:?}")
+    }
+}
+
+impl From<RpcParseError> for RpcError {
+    fn from(parse_error: RpcParseError) -> Self {
+        Self::parse_error(parse_error.0)
+    }
+}
+
+impl From<std::convert::Infallible> for RpcError {
+    fn from(_: std::convert::Infallible) -> Self {
+        unsafe { core::hint::unreachable_unchecked() }
+    }
+}
+
+impl fmt::Display for ServerError {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            ServerError::Timeout => write!(f, "ServerError: Timeout"),
+            ServerError::Closed => write!(f, "ServerError: Closed"),
+        }
+    }
+}
+
+impl From<ServerError> for RpcError {
+    fn from(e: ServerError) -> RpcError {
+        let error_data = match to_value(&e) {
+            Ok(value) => value,
+            Err(_err) => {
+                return RpcError::new_internal_error(None, "Failed to serialize ServerError")
+            }
+        };
+        RpcError::new_internal_error(Some(error_data), e.to_string().as_str())
+    }
+}

rpc_primitives/src/lib.rs

@@ -0,0 +1,72 @@
+use std::time::Duration;
+
+use serde::{Deserialize, Serialize};
+
+pub mod errors;
+pub mod message;
+pub mod parser;
+
+#[derive(Serialize, Deserialize, Clone, Copy, Debug)]
+pub struct RpcPollingConfig {
+    pub polling_interval: Duration,
+    pub polling_timeout: Duration,
+}
+
+impl Default for RpcPollingConfig {
+    fn default() -> Self {
+        Self {
+            polling_interval: Duration::from_millis(500),
+            polling_timeout: Duration::from_secs(10),
+        }
+    }
+}
+
+#[derive(Serialize, Deserialize, Clone, Debug)]
+pub struct RpcLimitsConfig {
+    /// Maximum byte size of the json payload.
+    pub json_payload_max_size: usize,
+}
+
+impl Default for RpcLimitsConfig {
+    fn default() -> Self {
+        Self {
+            json_payload_max_size: 10 * 1024 * 1024,
+        }
+    }
+}
+
+#[derive(Serialize, Deserialize, Clone, Debug)]
+pub struct RpcConfig {
+    pub addr: String,
+    pub cors_allowed_origins: Vec<String>,
+    pub polling_config: RpcPollingConfig,
+    #[serde(default)]
+    pub limits_config: RpcLimitsConfig,
+}
+
+impl Default for RpcConfig {
+    fn default() -> Self {
+        RpcConfig {
+            addr: "0.0.0.0:3040".to_owned(),
+            cors_allowed_origins: vec!["*".to_owned()],
+            polling_config: RpcPollingConfig::default(),
+            limits_config: RpcLimitsConfig::default(),
+        }
+    }
+}
+
+impl RpcConfig {
+    pub fn new(addr: &str) -> Self {
+        RpcConfig {
+            addr: addr.to_owned(),
+            ..Default::default()
+        }
+    }
+
+    pub fn with_port(port: u16) -> Self {
+        RpcConfig {
+            addr: format!("0.0.0.0:{port}"),
+            ..Default::default()
+        }
+    }
+}

rpc_primitives/src/message.rs

@@ -0,0 +1,551 @@
+// Copyright 2017 tokio-jsonrpc Developers
+//
+// Licensed under the Apache License, Version 2.0, <LICENSE-APACHE or
+// http://apache.org/licenses/LICENSE-2.0> or the MIT license <LICENSE-MIT or
+// http://opensource.org/licenses/MIT>, at your option. This file may not be
+// copied, modified, or distributed except according to those terms.
+
+//! JSON-RPC 2.0 messages.
+//!
+//! The main entrypoint here is the [Message](enum.Message.html). The others are just building
+//! blocks and you should generally work with `Message` instead.
+use serde::de::{Deserializer, Error, Unexpected, Visitor};
+use serde::ser::{SerializeStruct, Serializer};
+use serde_json::{Result as JsonResult, Value};
+use std::fmt::{Formatter, Result as FmtResult};
+
+use super::errors::RpcError;
+
+#[derive(Debug, Clone, PartialEq, Eq, Hash)]
+struct Version;
+
+impl serde::Serialize for Version {
+    fn serialize<S: Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error> {
+        serializer.serialize_str("2.0")
+    }
+}
+
+impl<'de> serde::Deserialize<'de> for Version {
+    fn deserialize<D: Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error> {
+        struct VersionVisitor;
+        impl<'de> Visitor<'de> for VersionVisitor {
+            type Value = Version;
+
+            fn expecting(&self, formatter: &mut Formatter<'_>) -> FmtResult {
+                formatter.write_str("a version string")
+            }
+
+            fn visit_str<E: Error>(self, value: &str) -> Result<Version, E> {
+                match value {
+                    "2.0" => Ok(Version),
+                    _ => Err(E::invalid_value(Unexpected::Str(value), &"value 2.0")),
+                }
+            }
+        }
+        deserializer.deserialize_str(VersionVisitor)
+    }
+}
+
+/// An RPC request.
+#[derive(Debug, serde::Serialize, serde::Deserialize, Clone, PartialEq)]
+#[serde(deny_unknown_fields)]
+pub struct Request {
+    jsonrpc: Version,
+    pub method: String,
+    #[serde(default, skip_serializing_if = "Value::is_null")]
+    pub params: Value,
+    pub id: Value,
+}
+
+impl Request {
+    /// Answer the request with a (positive) reply.
+    ///
+    /// The ID is taken from the request.
+    pub fn reply(&self, reply: Value) -> Message {
+        Message::Response(Response {
+            jsonrpc: Version,
+            result: Ok(reply),
+            id: self.id.clone(),
+        })
+    }
+    /// Answer the request with an error.
+    pub fn error(&self, error: RpcError) -> Message {
+        Message::Response(Response {
+            jsonrpc: Version,
+            result: Err(error),
+            id: self.id.clone(),
+        })
+    }
+}
+
+/// A response to an RPC.
+///
+/// It is created by the methods on [Request](struct.Request.html).
+#[derive(Debug, Clone, PartialEq)]
+pub struct Response {
+    jsonrpc: Version,
+    pub result: Result<Value, RpcError>,
+    pub id: Value,
+}
+
+impl serde::Serialize for Response {
+    fn serialize<S: Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error> {
+        let mut sub = serializer.serialize_struct("Response", 3)?;
+        sub.serialize_field("jsonrpc", &self.jsonrpc)?;
+        match self.result {
+            Ok(ref value) => sub.serialize_field("result", value),
+            Err(ref err) => sub.serialize_field("error", err),
+        }?;
+        sub.serialize_field("id", &self.id)?;
+        sub.end()
+    }
+}
+
+/// Deserializer for `Option<Value>` that produces `Some(Value::Null)`.
+///
+/// The usual one produces None in that case. But we need to know the difference between
+/// `{x: null}` and `{}`.
+fn some_value<'de, D: Deserializer<'de>>(deserializer: D) -> Result<Option<Value>, D::Error> {
+    serde::Deserialize::deserialize(deserializer).map(Some)
+}
+
+/// A helper trick for deserialization.
+#[derive(serde::Deserialize)]
+#[serde(deny_unknown_fields)]
+struct WireResponse {
+    // It is actually used to eat and sanity check the deserialized text
+    #[allow(dead_code)]
+    jsonrpc: Version,
+    // Make sure we accept null as Some(Value::Null), instead of going to None
+    #[serde(default, deserialize_with = "some_value")]
+    result: Option<Value>,
+    error: Option<RpcError>,
+    id: Value,
+}
+
+// Implementing deserialize is hard. We sidestep the difficulty by deserializing a similar
+// structure that directly corresponds to whatever is on the wire and then convert it to our more
+// convenient representation.
+impl<'de> serde::Deserialize<'de> for Response {
+    fn deserialize<D: Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error> {
+        let wr: WireResponse = serde::Deserialize::deserialize(deserializer)?;
+        let result = match (wr.result, wr.error) {
+            (Some(res), None) => Ok(res),
+            (None, Some(err)) => Err(err),
+            _ => {
+                let err = D::Error::custom("Either 'error' or 'result' is expected, but not both");
+                return Err(err);
+            }
+        };
+        Ok(Response {
+            jsonrpc: Version,
+            result,
+            id: wr.id,
+        })
+    }
+}
+
+/// A notification (doesn't expect an answer).
+#[derive(Debug, serde::Serialize, serde::Deserialize, Clone, PartialEq)]
+#[serde(deny_unknown_fields)]
+pub struct Notification {
+    jsonrpc: Version,
+    pub method: String,
+    #[serde(default, skip_serializing_if = "Value::is_null")]
+    pub params: Value,
+}
+
+/// One message of the JSON RPC protocol.
+///
+/// One message, directly mapped from the structures of the protocol. See the
+/// [specification](http://www.jsonrpc.org/specification) for more details.
+///
+/// Since the protocol allows one endpoint to be both client and server at the same time, the
+/// message can decode and encode both directions of the protocol.
+///
+/// The `Batch` variant is supposed to be created directly, without a constructor.
+///
+/// The `UnmatchedSub` variant is used when a request is an array and some of the subrequests
+/// aren't recognized as valid json rpc 2.0 messages. This is never returned as a top-level
+/// element, it is returned as `Err(Broken::Unmatched)`.
+#[derive(Debug, Clone, PartialEq, serde::Serialize, serde::Deserialize)]
+#[serde(untagged)]
+pub enum Message {
+    /// An RPC request.
+    Request(Request),
+    /// A response to a Request.
+    Response(Response),
+    /// A notification.
+    Notification(Notification),
+    /// A batch of more requests or responses.
+    ///
+    /// The protocol allows bundling multiple requests, notifications or responses to a single
+    /// message.
+    ///
+    /// This variant has no direct constructor and is expected to be constructed manually.
+    Batch(Vec<Message>),
+    /// An unmatched sub entry in a `Batch`.
+    ///
+    /// When there's a `Batch` and an element doesn't comform to the JSONRPC 2.0 format, that one
+    /// is represented by this. This is never produced as a top-level value when parsing, the
+    /// `Err(Broken::Unmatched)` is used instead. It is not possible to serialize.
+    #[serde(skip_serializing)]
+    UnmatchedSub(Value),
+}
+
+impl Message {
+    /// A constructor for a request.
+    ///
+    /// The ID is auto-set to dontcare.
+    pub fn request(method: String, params: Value) -> Self {
+        let id = Value::from("dontcare");
+        Message::Request(Request {
+            jsonrpc: Version,
+            method,
+            params,
+            id,
+        })
+    }
+    /// Create a top-level error (without an ID).
+    pub fn error(error: RpcError) -> Self {
+        Message::Response(Response {
+            jsonrpc: Version,
+            result: Err(error),
+            id: Value::Null,
+        })
+    }
+    /// A constructor for a notification.
+    pub fn notification(method: String, params: Value) -> Self {
+        Message::Notification(Notification {
+            jsonrpc: Version,
+            method,
+            params,
+        })
+    }
+    /// A constructor for a response.
+    pub fn response(id: Value, result: Result<Value, RpcError>) -> Self {
+        Message::Response(Response {
+            jsonrpc: Version,
+            result,
+            id,
+        })
+    }
+    /// Returns id or Null if there is no id.
+    pub fn id(&self) -> Value {
+        match self {
+            Message::Request(req) => req.id.clone(),
+            _ => Value::Null,
+        }
+    }
+}
+
+/// A broken message.
+///
+/// Protocol-level errors.
+#[derive(Debug, Clone, PartialEq, serde::Deserialize)]
+#[serde(untagged)]
+pub enum Broken {
+    /// It was valid JSON, but doesn't match the form of a JSONRPC 2.0 message.
+    Unmatched(Value),
+    /// Invalid JSON.
+    #[serde(skip_deserializing)]
+    SyntaxError(String),
+}
+
+impl Broken {
+    /// Generate an appropriate error message.
+    ///
+    /// The error message for these things are specified in the RFC, so this just creates an error
+    /// with the right values.
+    pub fn reply(&self) -> Message {
+        match *self {
+            Broken::Unmatched(_) => Message::error(RpcError::parse_error(
+                "JSON RPC Request format was expected".to_owned(),
+            )),
+            Broken::SyntaxError(ref e) => Message::error(RpcError::parse_error(e.clone())),
+        }
+    }
+}
+
+/// A trick to easily deserialize and detect valid JSON, but invalid Message.
+#[derive(serde::Deserialize)]
+#[serde(untagged)]
+pub enum WireMessage {
+    Message(Message),
+    Broken(Broken),
+}
+
+pub fn decoded_to_parsed(res: JsonResult<WireMessage>) -> Parsed {
+    match res {
+        Ok(WireMessage::Message(Message::UnmatchedSub(value))) => Err(Broken::Unmatched(value)),
+        Ok(WireMessage::Message(m)) => Ok(m),
+        Ok(WireMessage::Broken(b)) => Err(b),
+        Err(e) => Err(Broken::SyntaxError(e.to_string())),
+    }
+}
+
+pub type Parsed = Result<Message, Broken>;
+
+/// Read a [Message](enum.Message.html) from a slice.
+///
+/// Invalid JSON or JSONRPC messages are reported as [Broken](enum.Broken.html).
+pub fn from_slice(s: &[u8]) -> Parsed {
+    decoded_to_parsed(::serde_json::de::from_slice(s))
+}
+
+/// Read a [Message](enum.Message.html) from a string.
+///
+/// Invalid JSON or JSONRPC messages are reported as [Broken](enum.Broken.html).
+pub fn from_str(s: &str) -> Parsed {
+    from_slice(s.as_bytes())
+}
+
+impl From<Message> for String {
+    fn from(val: Message) -> Self {
+        ::serde_json::ser::to_string(&val).unwrap()
+    }
+}
+
+impl From<Message> for Vec<u8> {
+    fn from(val: Message) -> Self {
+        ::serde_json::ser::to_vec(&val).unwrap()
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use serde_json::de::from_slice;
+    use serde_json::json;
+    use serde_json::ser::to_vec;
+    use serde_json::Value;
+
+    use super::*;
+
+    /// Test serialization and deserialization of the Message
+    ///
+    /// We first deserialize it from a string. That way we check deserialization works.
+    /// But since serialization doesn't have to produce the exact same result (order, spaces, …),
+    /// we then serialize and deserialize the thing again and check it matches.
+    #[test]
+    #[allow(clippy::too_many_lines)]
+    fn message_serde() {
+        // A helper for running one message test
+        fn one(input: &str, expected: &Message) {
+            let parsed: Message = from_str(input).unwrap();
+            assert_eq!(*expected, parsed);
+            let serialized = to_vec(&parsed).unwrap();
+            let deserialized: Message = from_slice(&serialized).unwrap();
+            assert_eq!(parsed, deserialized);
+        }
+
+        // A request without parameters
+        one(
+            r#"{"jsonrpc": "2.0", "method": "call", "id": 1}"#,
+            &Message::Request(Request {
+                jsonrpc: Version,
+                method: "call".to_owned(),
+                params: Value::Null,
+                id: json!(1),
+            }),
+        );
+        // A request with parameters
+        one(
+            r#"{"jsonrpc": "2.0", "method": "call", "params": [1, 2, 3], "id": 2}"#,
+            &Message::Request(Request {
+                jsonrpc: Version,
+                method: "call".to_owned(),
+                params: json!([1, 2, 3]),
+                id: json!(2),
+            }),
+        );
+        // A notification (with parameters)
+        one(
+            r#"{"jsonrpc": "2.0", "method": "notif", "params": {"x": "y"}}"#,
+            &Message::Notification(Notification {
+                jsonrpc: Version,
+                method: "notif".to_owned(),
+                params: json!({"x": "y"}),
+            }),
+        );
+        // A successful response
+        one(
+            r#"{"jsonrpc": "2.0", "result": 42, "id": 3}"#,
+            &Message::Response(Response {
+                jsonrpc: Version,
+                result: Ok(json!(42)),
+                id: json!(3),
+            }),
+        );
+        // A successful response
+        one(
+            r#"{"jsonrpc": "2.0", "result": null, "id": 3}"#,
+            &Message::Response(Response {
+                jsonrpc: Version,
+                result: Ok(Value::Null),
+                id: json!(3),
+            }),
+        );
+        // An error
+        one(
+            r#"{"jsonrpc": "2.0", "error": {"code": 42, "message": "Wrong!"}, "id": null}"#,
+            &Message::Response(Response {
+                jsonrpc: Version,
+                result: Err(RpcError::new(42, "Wrong!".to_owned(), None)),
+                id: Value::Null,
+            }),
+        );
+        // A batch
+        one(
+            r#"[
+                {"jsonrpc": "2.0", "method": "notif"},
+                {"jsonrpc": "2.0", "method": "call", "id": 42}
+            ]"#,
+            &Message::Batch(vec![
+                Message::Notification(Notification {
+                    jsonrpc: Version,
+                    method: "notif".to_owned(),
+                    params: Value::Null,
+                }),
+                Message::Request(Request {
+                    jsonrpc: Version,
+                    method: "call".to_owned(),
+                    params: Value::Null,
+                    id: json!(42),
+                }),
+            ]),
+        );
+        // Some handling of broken messages inside a batch
+        let parsed = from_str(
+            r#"[
+                {"jsonrpc": "2.0", "method": "notif"},
+                {"jsonrpc": "2.0", "method": "call", "id": 42},
+                true
+            ]"#,
+        )
+        .unwrap();
+        assert_eq!(
+            Message::Batch(vec![
+                Message::Notification(Notification {
+                    jsonrpc: Version,
+                    method: "notif".to_owned(),
+                    params: Value::Null,
+                }),
+                Message::Request(Request {
+                    jsonrpc: Version,
+                    method: "call".to_owned(),
+                    params: Value::Null,
+                    id: json!(42),
+                }),
+                Message::UnmatchedSub(Value::Bool(true)),
+            ]),
+            parsed
+        );
+        to_vec(&Message::UnmatchedSub(Value::Null)).unwrap_err();
+    }
+
+    /// A helper for the `broken` test.
+    ///
+    /// Check that the given JSON string parses, but is not recognized as a valid RPC message.
+
+    /// Test things that are almost but not entirely JSONRPC are rejected
+    ///
+    /// The reject is done by returning it as Unmatched.
+    #[test]
+    #[allow(clippy::panic)]
+    fn broken() {
+        // A helper with one test
+        fn one(input: &str) {
+            let msg = from_str(input);
+            match msg {
+                Err(Broken::Unmatched(_)) => (),
+                _ => panic!("{input} recognized as an RPC message: {msg:?}!"),
+            }
+        }
+
+        // Missing the version
+        one(r#"{"method": "notif"}"#);
+        // Wrong version
+        one(r#"{"jsonrpc": 2.0, "method": "notif"}"#);
+        // A response with both result and error
+        one(r#"{"jsonrpc": "2.0", "result": 42, "error": {"code": 42, "message": "!"}, "id": 1}"#);
+        // A response without an id
+        one(r#"{"jsonrpc": "2.0", "result": 42}"#);
+        // An extra field
+        one(r#"{"jsonrpc": "2.0", "method": "weird", "params": 42, "others": 43, "id": 2}"#);
+        // Something completely different
+        one(r#"{"x": [1, 2, 3]}"#);
+
+        match from_str(r#"{]"#) {
+            Err(Broken::SyntaxError(_)) => (),
+            other => panic!("Something unexpected: {other:?}"),
+        };
+    }
+
+    /// Test some non-trivial aspects of the constructors
+    ///
+    /// This doesn't have a full coverage, because there's not much to actually test there.
+    /// Most of it is related to the ids.
+    #[test]
+    #[allow(clippy::panic)]
+    #[ignore]
+    fn constructors() {
+        let msg1 = Message::request("call".to_owned(), json!([1, 2, 3]));
+        let msg2 = Message::request("call".to_owned(), json!([1, 2, 3]));
+        // They differ, even when created with the same parameters
+        assert_ne!(msg1, msg2);
+        // And, specifically, they differ in the ID's
+        let (req1, req2) = if let (Message::Request(req1), Message::Request(req2)) = (msg1, msg2) {
+            assert_ne!(req1.id, req2.id);
+            assert!(req1.id.is_string());
+            assert!(req2.id.is_string());
+            (req1, req2)
+        } else {
+            panic!("Non-request received");
+        };
+        let id1 = req1.id.clone();
+        // When we answer a message, we get the same ID
+        if let Message::Response(ref resp) = req1.reply(json!([1, 2, 3])) {
+            assert_eq!(
+                *resp,
+                Response {
+                    jsonrpc: Version,
+                    result: Ok(json!([1, 2, 3])),
+                    id: id1
+                }
+            );
+        } else {
+            panic!("Not a response");
+        }
+        let id2 = req2.id.clone();
+        // The same with an error
+        if let Message::Response(ref resp) =
+            req2.error(RpcError::new(42, "Wrong!".to_owned(), None))
+        {
+            assert_eq!(
+                *resp,
+                Response {
+                    jsonrpc: Version,
+                    result: Err(RpcError::new(42, "Wrong!".to_owned(), None)),
+                    id: id2,
+                }
+            );
+        } else {
+            panic!("Not a response");
+        }
+        // When we have unmatched, we generate a top-level error with Null id.
+        if let Message::Response(ref resp) =
+            Message::error(RpcError::new(43, "Also wrong!".to_owned(), None))
+        {
+            assert_eq!(
+                *resp,
+                Response {
+                    jsonrpc: Version,
+                    result: Err(RpcError::new(43, "Also wrong!".to_owned(), None)),
+                    id: Value::Null,
+                }
+            );
+        } else {
+            panic!("Not a response");
+        }
+    }
+}

rpc_primitives/src/parser.rs

@@ -0,0 +1,27 @@
+use serde::de::DeserializeOwned;
+use serde_json::Value;
+
+use crate::errors::RpcParseError;
+
+pub trait RpcRequest: Sized {
+    fn parse(value: Option<Value>) -> Result<Self, RpcParseError>;
+}
+
+pub fn parse_params<T: DeserializeOwned>(value: Option<Value>) -> Result<T, RpcParseError> {
+    if let Some(value) = value {
+        serde_json::from_value(value)
+            .map_err(|err| RpcParseError(format!("Failed parsing args: {err}")))
+    } else {
+        Err(RpcParseError("Require at least one parameter".to_owned()))
+    }
+}
+#[macro_export]
+macro_rules! parse_request {
+    ($request_name:ty) => {
+        impl RpcRequest for $request_name {
+            fn parse(value: Option<Value>) -> Result<Self, RpcParseError> {
+                parse_params::<Self>(value)
+            }
+        }
+    };
+}

sequencer_rpc/Cargo.toml

@@ -9,6 +9,9 @@ serde_json.workspace = true
 env_logger.workspace = true
 log.workspace = true
 serde.workspace = true
+actix.workspace = true
+actix-cors.workspace = true
+futures.workspace = true
 
 actix-web.workspace = true
 
@@ -22,4 +25,7 @@ path = "../consensus"
 path = "../networking"
 
 [dependencies.sequencer_core]
-path = "../sequencer_core"
+path = "../sequencer_core"
+
+[dependencies.rpc_primitives]
+path = "../rpc_primitives"

sequencer_rpc/src/lib.rs

@@ -1 +1,39 @@
-//ToDo: Add sequencer_rpc module
+pub mod net_utils;
+pub mod process;
+pub mod types;
+
+use rpc_primitives::{
+    errors::{RpcError, RpcErrorKind},
+    RpcPollingConfig,
+};
+use serde::Serialize;
+use serde_json::Value;
+
+pub use net_utils::*;
+
+use self::types::err_rpc::RpcErr;
+
+//ToDo: Add necessary fields
+pub struct JsonHandler {
+    pub polling_config: RpcPollingConfig,
+}
+
+fn respond<T: Serialize>(val: T) -> Result<Value, RpcErr> {
+    Ok(serde_json::to_value(val)?)
+}
+
+pub fn rpc_error_responce_inverter(err: RpcError) -> RpcError {
+    let mut content: Option<Value> = None;
+    if err.error_struct.is_some() {
+        content = match err.error_struct.clone().unwrap() {
+            RpcErrorKind::HandlerError(val) | RpcErrorKind::InternalError(val) => Some(val),
+            RpcErrorKind::RequestValidationError(vall) => Some(serde_json::to_value(vall).unwrap()),
+        };
+    }
+    RpcError {
+        error_struct: None,
+        code: err.code,
+        message: err.message,
+        data: content,
+    }
+}

sequencer_rpc/src/net_utils.rs

@@ -0,0 +1,64 @@
+use std::io;
+
+use actix_cors::Cors;
+use actix_web::{http, middleware, web, App, Error as HttpError, HttpResponse, HttpServer};
+use futures::Future;
+use futures::FutureExt;
+use log::info;
+
+use rpc_primitives::message::Message;
+use rpc_primitives::RpcConfig;
+
+use super::JsonHandler;
+
+pub const SHUTDOWN_TIMEOUT_SECS: u64 = 10;
+
+fn rpc_handler(
+    message: web::Json<Message>,
+    handler: web::Data<JsonHandler>,
+) -> impl Future<Output = Result<HttpResponse, HttpError>> {
+    let response = async move {
+        let message = handler.process(message.0).await?;
+        Ok(HttpResponse::Ok().json(&message))
+    };
+    response.boxed()
+}
+
+fn get_cors(cors_allowed_origins: &[String]) -> Cors {
+    let mut cors = Cors::permissive();
+    if cors_allowed_origins != ["*".to_string()] {
+        for origin in cors_allowed_origins {
+            cors = cors.allowed_origin(origin);
+        }
+    }
+    cors.allowed_methods(vec!["GET", "POST"])
+        .allowed_headers(vec![http::header::AUTHORIZATION, http::header::ACCEPT])
+        .allowed_header(http::header::CONTENT_TYPE)
+        .max_age(3600)
+}
+
+#[allow(clippy::too_many_arguments)]
+pub fn new_http_server(config: RpcConfig) -> io::Result<actix_web::dev::Server> {
+    let RpcConfig {
+        addr,
+        cors_allowed_origins,
+        polling_config,
+        limits_config,
+    } = config;
+    info!(target:"network", "Starting http server at {}", addr);
+    let handler = web::Data::new(JsonHandler { polling_config });
+
+    // HTTP server
+    Ok(HttpServer::new(move || {
+        App::new()
+            .wrap(get_cors(&cors_allowed_origins))
+            .app_data(handler.clone())
+            .app_data(web::JsonConfig::default().limit(limits_config.json_payload_max_size))
+            .wrap(middleware::Logger::default())
+            .service(web::resource("/").route(web::post().to(rpc_handler)))
+    })
+    .bind(addr)?
+    .shutdown_timeout(SHUTDOWN_TIMEOUT_SECS)
+    .disable_signals()
+    .run())
+}

sequencer_rpc/src/process.rs

@@ -0,0 +1,53 @@
+use actix_web::Error as HttpError;
+use serde_json::Value;
+
+use rpc_primitives::{
+    errors::RpcError,
+    message::{Message, Request},
+    parser::RpcRequest,
+};
+
+use crate::{
+    rpc_error_responce_inverter,
+    types::rpc_structs::{HelloRequest, HelloResponse},
+};
+
+use super::{respond, types::err_rpc::RpcErr, JsonHandler};
+
+impl JsonHandler {
+    pub async fn process(&self, message: Message) -> Result<Message, HttpError> {
+        let id = message.id();
+        if let Message::Request(request) = message {
+            let message_inner = self
+                .process_request_internal(request)
+                .await
+                .map_err(|e| e.0)
+                .map_err(rpc_error_responce_inverter);
+            Ok(Message::response(id, message_inner))
+        } else {
+            Ok(Message::error(RpcError::parse_error(
+                "JSON RPC Request format was expected".to_owned(),
+            )))
+        }
+    }
+
+    #[allow(clippy::unused_async)]
+    ///Example of request processing
+    async fn process_temp_hello(&self, request: Request) -> Result<Value, RpcErr> {
+        let _hello_request = HelloRequest::parse(Some(request.params))?;
+
+        let helperstruct = HelloResponse {
+            greeting: "HELLO_FROM_SEQUENCER".to_string(),
+        };
+
+        respond(helperstruct)
+    }
+
+    pub async fn process_request_internal(&self, request: Request) -> Result<Value, RpcErr> {
+        match request.method.as_ref() {
+            //Todo : Add handling of more JSON RPC methods
+            "hello" => self.process_temp_hello(request).await,
+            _ => Err(RpcErr(RpcError::method_not_found(request.method))),
+        }
+    }
+}

sequencer_rpc/src/types/err_rpc.rs

@@ -0,0 +1,47 @@
+use log::debug;
+
+use rpc_primitives::errors::{RpcError, RpcParseError};
+
+pub struct RpcErr(pub RpcError);
+
+pub type RpcErrInternal = anyhow::Error;
+
+pub trait RpcErrKind: 'static {
+    fn into_rpc_err(self) -> RpcError;
+}
+
+impl<T: RpcErrKind> From<T> for RpcErr {
+    fn from(e: T) -> Self {
+        Self(e.into_rpc_err())
+    }
+}
+
+macro_rules! standard_rpc_err_kind {
+    ($type_name:path) => {
+        impl RpcErrKind for $type_name {
+            fn into_rpc_err(self) -> RpcError {
+                self.into()
+            }
+        }
+    };
+}
+standard_rpc_err_kind!(RpcError);
+standard_rpc_err_kind!(RpcParseError);
+
+impl RpcErrKind for serde_json::Error {
+    fn into_rpc_err(self) -> RpcError {
+        RpcError::serialization_error(&self.to_string())
+    }
+}
+
+impl RpcErrKind for RpcErrInternal {
+    fn into_rpc_err(self) -> RpcError {
+        RpcError::new_internal_error(None, &format!("{self:#?}"))
+    }
+}
+
+#[allow(clippy::needless_pass_by_value)]
+pub fn from_rpc_err_into_anyhow_err(rpc_err: RpcError) -> anyhow::Error {
+    debug!("Rpc error cast to anyhow error : err {rpc_err:?}");
+    anyhow::anyhow!(format!("{rpc_err:#?}"))
+}

sequencer_rpc/src/types/mod.rs

@@ -0,0 +1,3 @@
+pub mod err_rpc;
+pub mod parse;
+pub mod rpc_structs;

sequencer_rpc/src/types/parse.rs

@@ -0,0 +1 @@
+

sequencer_rpc/src/types/rpc_structs.rs

@@ -0,0 +1,16 @@
+use rpc_primitives::errors::RpcParseError;
+use rpc_primitives::parse_request;
+use rpc_primitives::parser::parse_params;
+use rpc_primitives::parser::RpcRequest;
+use serde::{Deserialize, Serialize};
+use serde_json::Value;
+
+#[derive(Serialize, Deserialize, Debug)]
+pub struct HelloRequest {}
+
+parse_request!(HelloRequest);
+
+#[derive(Serialize, Deserialize, Debug)]
+pub struct HelloResponse {
+    pub greeting: String,
+}

sequencer_runner/Cargo.toml

@@ -9,6 +9,7 @@ serde_json.workspace = true
 env_logger.workspace = true
 log.workspace = true
 serde.workspace = true
+actix.workspace = true
 
 actix-web.workspace = true
 tokio.workspace = true
@@ -26,4 +27,7 @@ path = "../networking"
 path = "../sequencer_rpc"
 
 [dependencies.sequencer_core]
-path = "../sequencer_core"
+path = "../sequencer_core"
+
+[dependencies.rpc_primitives]
+path = "../rpc_primitives"

sequencer_runner/src/lib.rs

@@ -0,0 +1,17 @@
+use anyhow::Result;
+use log::info;
+use rpc_primitives::RpcConfig;
+use sequencer_rpc::new_http_server;
+
+pub async fn main_runner() -> Result<()> {
+    env_logger::init();
+
+    let http_server = new_http_server(RpcConfig::default())?;
+    info!("HTTP server started");
+    let _http_server_handle = http_server.handle();
+    tokio::spawn(http_server);
+
+    loop {
+        //ToDo: Insert activity into main loop
+    }
+}

sequencer_runner/src/main.rs

@@ -1,5 +1,16 @@
-//ToDo: Add sequencer_runner module
+use anyhow::Result;
 
-fn main() {
+use sequencer_runner::main_runner;
-    println!("Hello, world!");
+
+pub const NUM_THREADS: usize = 4;
+
+fn main() -> Result<()> {
+    actix::System::with_tokio_rt(|| {
+        tokio::runtime::Builder::new_multi_thread()
+            .worker_threads(NUM_THREADS)
+            .enable_all()
+            .build()
+            .unwrap()
+    })
+    .block_on(main_runner())
 }

storage/src/lib.rs

@@ -1 +1 @@
-//ToDo: Add storage module
+//ToDo: Add storage module

utxo/src/lib.rs

@@ -1 +1 @@
-//ToDo: Add utxo module
+//ToDo: Add utxo module

zkvm/src/lib.rs

@@ -1 +1 @@
-//ToDo: Add zkvm module
+//ToDo: Add zkvm module