wip

Cargo.toml

@@ -5,10 +5,10 @@ members = [
     # "./crates/ethers-abi",
     # "./crates/ethers-contract",
     # "./crates/ethers-derive",
-    # "./crates/ethers-providers",
+    "./crates/ethers-providers",
     # "./crates/ethers-signers",
     "./crates/ethers-types",
-    # "./crates/ethers-utils",
+    "./crates/ethers-utils",
 ]
 
 # [dependencies]

crates/ethers-providers/Cargo.toml

@@ -4,6 +4,13 @@ version = "0.1.0"
 authors = ["Georgios Konstantopoulos <me@gakonst.com>"]
 edition = "2018"
 
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
 [dependencies]
+ethers-types = { path = "../ethers-types" }
+ethers-utils = { path = "../ethers-utils" }
+
+async-trait = { version = "0.1.31", default-features = false }
+reqwest = { version = "0.10.4", default-features = false, features = ["json", "rustls-tls"] }
+serde = { version = "1.0.110", default-features = false, features = ["derive"] }
+serde_json = { version = "1.0.53", default-features = false }
+thiserror = { version = "1.0.19", default-features = false }
+url = { version = "2.1.1", default-features = false }

crates/ethers-providers/src/http.rs

@@ -1,6 +1,6 @@
 //! Minimal HTTP JSON-RPC 2.0 Client
 //! The request/response code is taken from [here](https://github.com/althea-net/guac_rs/blob/master/web3/src/jsonrpc)
-use crate::providers::JsonRpcClient;
+use crate::JsonRpcClient;
 
 use async_trait::async_trait;
 use reqwest::{Client, Error as ReqwestError};

crates/ethers-providers/src/lib.rs

@@ -1,7 +1,29 @@
-#[cfg(test)]
-mod tests {
-    #[test]
-    fn it_works() {
-        assert_eq!(2 + 2, 4);
-    }
+//! Ethereum compatible providers
+//! Currently supported:
+//! - Raw HTTP POST requests
+//!
+//! TODO: WebSockets, multiple backends, popular APIs etc.
+
+mod provider;
+mod http;
+
+use async_trait::async_trait;
+use serde::{Deserialize, Serialize};
+use std::{error::Error, fmt::Debug};
+
+/// An HTTP provider for interacting with an Ethereum-compatible blockchain
+pub type HttpProvider = Provider<http::Provider>;
+
+#[async_trait]
+/// Implement this trait in order to plug in different backends
+pub trait JsonRpcClient: Debug {
+    type Error: Error;
+
+    /// Sends a request with the provided method and the params serialized as JSON
+    async fn request<T: Serialize + Send + Sync, R: for<'a> Deserialize<'a>>(
+        &self,
+        method: &str,
+        params: Option<T>,
+    ) -> Result<R, Self::Error>;
 }
+

crates/ethers-providers/src/provider.rs

@@ -1,39 +1,13 @@
-//! Ethereum compatible providers
-//! Currently supported:
-//! - Raw HTTP POST requests
-//!
-//! TODO: WebSockets, multiple backends, popular APIs etc.
-mod http;
-
-use crate::{
-    signers::{Client, Signer},
-    types::{
+use ethers_types::{
     Address, Block, BlockId, BlockNumber, Filter, Log, Transaction, TransactionReceipt,
     TransactionRequest, TxHash, U256,
-    },
-    utils,
 };
+use ethers_utils as utils;
 
 use async_trait::async_trait;
 use serde::{Deserialize, Serialize};
 use std::{error::Error, fmt::Debug};
 
-/// An HTTP provider for interacting with an Ethereum-compatible blockchain
-pub type HttpProvider = Provider<http::Provider>;
-
-#[async_trait]
-/// Implement this trait in order to plug in different backends
-pub trait JsonRpcClient: Debug {
-    type Error: Error;
-
-    /// Sends a request with the provided method and the params serialized as JSON
-    async fn request<T: Serialize + Send + Sync, R: for<'a> Deserialize<'a>>(
-        &self,
-        method: &str,
-        params: Option<T>,
-    ) -> Result<R, Self::Error>;
-}
-
 /// An abstract provider for interacting with the [Ethereum JSON RPC
 /// API](https://github.com/ethereum/wiki/wiki/JSON-RPC)
 #[derive(Clone, Debug)]
@@ -41,16 +15,6 @@ pub struct Provider<P>(P);
 
 // JSON RPC bindings
 impl<P: JsonRpcClient> Provider<P> {
-    /// Connects to a signer and returns a client
-    pub fn connect<S: Signer>(&self, signer: S) -> Client<S, P> {
-        Client {
-            signer: Some(signer),
-            provider: self,
-        }
-    }
-
-    // Cost related
-
     /// Gets the current gas price as estimated by the node
     pub async fn get_gas_price(&self) -> Result<U256, P::Error> {
         self.0.request("eth_gasPrice", None::<()>).await

crates/ethers-types/Cargo.toml

@@ -7,6 +7,8 @@ edition = "2018"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+ethers-utils = { path = "../ethers-utils" }
+
 ethereum-types = { version = "0.9.2", default-features = false, features = ["serialize"] }
 serde = { version = "1.0.110", default-features = false, features = ["derive"] }
 rlp = { version = "0.4.5", default-features = false }

crates/ethers-types/src/block.rs

@@ -1,4 +1,4 @@
-use crate::types::{Address, Bloom, Bytes, H256, U256, U64};
+use crate::{Address, Bloom, Bytes, H256, U256, U64};
 use serde::{ser::SerializeStruct, Deserialize, Serialize, Serializer};
 
 /// The block type returned from RPC calls.

crates/ethers-types/src/keys.rs

@@ -1,3 +1,6 @@
+use crate::{Address, Signature, Transaction, TransactionRequest, H256, U256, U64};
+use ethers_utils::{hash_message, keccak256};
+
 use rand::Rng;
 use secp256k1::{
     key::ONE_KEY, Error as SecpError, Message, PublicKey as PubKey, Secp256k1, SecretKey,
@@ -7,11 +10,6 @@ use std::str::FromStr;
 use thiserror::Error;
 use zeroize::DefaultIsZeroes;
 
-use crate::{
-    types::{Address, Signature, Transaction, TransactionRequest, H256, U256, U64},
-    utils::{hash_message, keccak256},
-};
-
 /// A private key on Secp256k1
 #[derive(Copy, Clone, Debug, PartialEq, Eq)]
 pub struct PrivateKey(pub(super) SecretKey);

crates/ethers-types/src/log.rs

@@ -1,7 +1,5 @@
-use crate::{
-    types::{Address, BlockNumber, Bytes, H256, U256, U64},
-    utils::keccak256,
-};
+use crate::{Address, BlockNumber, Bytes, H256, U256, U64};
+use ethers_utils::keccak256;
 use serde::{Deserialize, Serialize};
 use std::str::FromStr;
 

crates/ethers-types/src/signature.rs

@@ -1,8 +1,6 @@
 // Code adapted from: https://github.com/tomusdrw/rust-web3/blob/master/src/api/accounts.rs
-use crate::{
-    types::{Address, PublicKey, H256},
-    utils::hash_message,
-};
+use crate::{Address, PublicKey, H256};
+use ethers_utils::hash_message;
 
 use rustc_hex::ToHex;
 use secp256k1::{

crates/ethers-types/src/transaction.rs

@@ -1,8 +1,7 @@
 //! Transaction types
-use crate::{
-    types::{Address, Bloom, Bytes, Log, Signature, H256, U256, U64},
-    utils::keccak256,
-};
+use crate::{Address, Bloom, Bytes, Log, Signature, H256, U256, U64};
+use ethers_utils::keccak256;
+
 use rlp::RlpStream;
 use serde::{Deserialize, Serialize};
 use std::str::FromStr;

crates/ethers-utils/Cargo.toml

@@ -4,6 +4,8 @@ version = "0.1.0"
 authors = ["Georgios Konstantopoulos <me@gakonst.com>"]
 edition = "2018"
 
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
 [dependencies]
+ethereum-types = { version = "0.9.2", default-features = false, features = ["serialize"] }
+tiny-keccak = { version = "2.0.2", default-features = false }
+serde = { version = "1.0.110", default-features = false }
+serde_json = { version = "1.0.53", default-features = false, features = ["alloc"] }

crates/ethers-utils/src/lib.rs

@@ -1,7 +1,81 @@
+//! Various utilities for manipulating Ethereum related dat
+use ethereum_types::H256;
+use tiny_keccak::{Hasher, Keccak};
+
+const PREFIX: &str = "\x19Ethereum Signed Message:\n";
+
+/// Hash a message according to EIP-191.
+///
+/// The data is a UTF-8 encoded string and will enveloped as follows:
+/// `"\x19Ethereum Signed Message:\n" + message.length + message` and hashed
+/// using keccak256.
+pub fn hash_message<S>(message: S) -> H256
+where
+    S: AsRef<[u8]>,
+{
+    let message = message.as_ref();
+
+    let mut eth_message = format!("{}{}", PREFIX, message.len()).into_bytes();
+    eth_message.extend_from_slice(message);
+
+    keccak256(&eth_message).into()
+}
+
+/// Compute the Keccak-256 hash of input bytes.
+// TODO: Add Solidity Keccak256 packing support
+pub fn keccak256(bytes: &[u8]) -> [u8; 32] {
+    let mut output = [0u8; 32];
+    let mut hasher = Keccak::v256();
+    hasher.update(bytes);
+    hasher.finalize(&mut output);
+    output
+}
+
+/// Calculate the function selector as per the contract ABI specification. This
+/// is defined as the first 4 bytes of the Keccak256 hash of the function
+/// signature.
+pub fn id<S: AsRef<str>>(signature: S) -> [u8; 4] {
+    let mut output = [0u8; 4];
+
+    let mut hasher = Keccak::v256();
+    hasher.update(signature.as_ref().as_bytes());
+    hasher.finalize(&mut output);
+
+    output
+}
+
+/// Serialize a type. Panics if the type is returns error during serialization.
+pub fn serialize<T: serde::Serialize>(t: &T) -> serde_json::Value {
+    serde_json::to_value(t).expect("Types never fail to serialize.")
+}
+
 #[cfg(test)]
 mod tests {
+    use super::*;
+
+    // test vector taken from:
+    // https://web3js.readthedocs.io/en/v1.2.2/web3-eth-accounts.html#hashmessage
     #[test]
-    fn it_works() {
-        assert_eq!(2 + 2, 4);
+    fn test_hash_message() {
+        let hash = hash_message("Hello World");
+
+        assert_eq!(
+            hash,
+            "a1de988600a42c4b4ab089b619297c17d53cffae5d5120d82d8a92d0bb3b78f2"
+                .parse()
+                .unwrap()
+        );
+    }
+
+    #[test]
+    fn simple_function_signature() {
+        // test vector retrieved from
+        // https://web3js.readthedocs.io/en/v1.2.4/web3-eth-abi.html#encodefunctionsignature
+        assert_eq!(id("myMethod(uint256,string)"), [0x24, 0xee, 0x00, 0x97],);
+    }
+
+    #[test]
+    fn revert_function_signature() {
+        assert_eq!(id("Error(string)"), [0x08, 0xc3, 0x79, 0xa0]);
     }
 }

crates/ethers-utils/src/utils.rs

@@ -1,81 +0,0 @@
-//! Various utilities for manipulating Ethereum related dat
-use crate::types::{Selector, H256};
-use tiny_keccak::{Hasher, Keccak};
-
-const PREFIX: &str = "\x19Ethereum Signed Message:\n";
-
-/// Hash a message according to EIP-191.
-///
-/// The data is a UTF-8 encoded string and will enveloped as follows:
-/// `"\x19Ethereum Signed Message:\n" + message.length + message` and hashed
-/// using keccak256.
-pub fn hash_message<S>(message: S) -> H256
-where
-    S: AsRef<[u8]>,
-{
-    let message = message.as_ref();
-
-    let mut eth_message = format!("{}{}", PREFIX, message.len()).into_bytes();
-    eth_message.extend_from_slice(message);
-
-    keccak256(&eth_message).into()
-}
-
-/// Compute the Keccak-256 hash of input bytes.
-// TODO: Add Solidity Keccak256 packing support
-pub fn keccak256(bytes: &[u8]) -> [u8; 32] {
-    let mut output = [0u8; 32];
-    let mut hasher = Keccak::v256();
-    hasher.update(bytes);
-    hasher.finalize(&mut output);
-    output
-}
-
-/// Calculate the function selector as per the contract ABI specification. This
-/// is defined as the first 4 bytes of the Keccak256 hash of the function
-/// signature.
-pub fn id<S: AsRef<str>>(signature: S) -> Selector {
-    let mut output = [0u8; 4];
-
-    let mut hasher = Keccak::v256();
-    hasher.update(signature.as_ref().as_bytes());
-    hasher.finalize(&mut output);
-
-    output
-}
-
-/// Serialize a type. Panics if the type is returns error during serialization.
-pub fn serialize<T: serde::Serialize>(t: &T) -> serde_json::Value {
-    serde_json::to_value(t).expect("Types never fail to serialize.")
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    // test vector taken from:
-    // https://web3js.readthedocs.io/en/v1.2.2/web3-eth-accounts.html#hashmessage
-    #[test]
-    fn test_hash_message() {
-        let hash = hash_message("Hello World");
-
-        assert_eq!(
-            hash,
-            "a1de988600a42c4b4ab089b619297c17d53cffae5d5120d82d8a92d0bb3b78f2"
-                .parse()
-                .unwrap()
-        );
-    }
-
-    #[test]
-    fn simple_function_signature() {
-        // test vector retrieved from
-        // https://web3js.readthedocs.io/en/v1.2.4/web3-eth-abi.html#encodefunctionsignature
-        assert_eq!(id("myMethod(uint256,string)"), [0x24, 0xee, 0x00, 0x97],);
-    }
-
-    #[test]
-    fn revert_function_signature() {
-        assert_eq!(id("Error(string)"), [0x08, 0xc3, 0x79, 0xa0]);
-    }
-}