complete refactor

Cargo.lock

@@ -1,5 +1,10 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+[[package]]
+name = "anyhow"
+version = "1.0.31"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "arrayvec"
 version = "0.5.1"
@@ -165,6 +170,23 @@ dependencies = [
  "uint 0.8.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "ethers"
+version = "0.1.0"
+dependencies = [
+ "anyhow 1.0.31 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethers-abi 0.1.0",
+ "ethers-contract 0.1.0",
+ "ethers-providers 0.1.0",
+ "ethers-signers 0.1.0",
+ "ethers-types 0.1.0",
+ "ethers-utils 0.1.0",
+ "rand 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.110 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.53 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio 0.2.21 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "ethers-abi"
 version = "0.1.0"
@@ -1076,6 +1098,17 @@ dependencies = [
  "mio 0.6.22 (registry+https://github.com/rust-lang/crates.io-index)",
  "pin-project-lite 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tokio-macros 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "tokio-macros"
+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "proc-macro2 1.0.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1326,6 +1359,7 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [metadata]
+"checksum anyhow 1.0.31 (registry+https://github.com/rust-lang/crates.io-index)" = "85bb70cc08ec97ca5450e6eba421deeea5f172c0fc61f78b5357b2a8e8be195f"
 "checksum arrayvec 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "cff77d8686867eceff3105329d4698d96c2391c176d5d03adc90c7389162b5b8"
 "checksum async-trait 0.1.31 (registry+https://github.com/rust-lang/crates.io-index)" = "26c4f3195085c36ea8d24d32b2f828d23296a9370a28aa39d111f6f16bef9f3b"
 "checksum autocfg 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)" = "1d49d90015b3c36167a20fe2810c5cd875ad504b39cff3d4eae7977e6b7c1cb2"
@@ -1444,6 +1478,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum tiny-keccak 1.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1d8a021c69bb74a44ccedb824a046447e2c84a01df9e5c20779750acb38e11b2"
 "checksum tiny-keccak 2.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "2c9d3793400a45f954c52e73d068316d76b6f4e36977e3fcebb13a2721e80237"
 "checksum tokio 0.2.21 (registry+https://github.com/rust-lang/crates.io-index)" = "d099fa27b9702bed751524694adbe393e18b36b204da91eb1cbbbbb4a5ee2d58"
+"checksum tokio-macros 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)" = "f0c3acc6aa564495a0f2e1d59fab677cd7f81a19994cfc7f3ad0e64301560389"
 "checksum tokio-rustls 0.13.1 (registry+https://github.com/rust-lang/crates.io-index)" = "15cb62a0d2770787abc96e99c1cd98fcf17f94959f3af63ca85bdfb203f051b4"
 "checksum tokio-util 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "be8242891f2b6cbef26a2d7e8605133c2c554cd35b3e4948ea892d6d68436499"
 "checksum tower-service 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e987b6bf443f4b5b3b6f38704195592cca41c5bb7aedd3c3693c7081f8289860"

Cargo.toml

@@ -1,7 +1,7 @@
 [workspace]
 
 members = [
-    # "./crates/ethers",
+    "./crates/ethers",
     "./crates/ethers-abi",
     "./crates/ethers-contract",
     # "./crates/ethers-derive",
@@ -10,35 +10,3 @@ members = [
     "./crates/ethers-types",
     "./crates/ethers-utils",
 ]
-
-# [dependencies]
-# ethers-derive = { path = "ethers-derive", optional = true }
-# 
-# ethereum-types = { version = "0.9.2", default-features = false, features = ["serialize"] }
-# url = { version = "2.1.1", default-features = false }
-# 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 }
-# rustc-hex = { version = "2.1.0", default-features = false }
-# rand = { version = "0.5.1", default-features = false } # this should be the same rand crate version as the one in secp
-# secp256k1 = { version = "0.17.2", default-features = false, features = ["std", "recovery", "rand"] }
-# zeroize = { version = "1.1.0", default-features = false }
-# tiny-keccak = { version = "2.0.2", default-features = false }
-# 
-# solc = { git = "https://github.com/paritytech/rust_solc", optional = true }
-# rlp = "0.4.5"
-# ethabi = "12.0.0"
-# bincode = "1.2.1"
-# arrayvec = "0.5.1"
-# 
-# [dev-dependencies]
-# tokio = { version = "0.2.21", features = ["macros"] }
-# failure = "0.1.8"
-# rand = { version = "0.5.1" }
-# 
-# [features]
-# default = ["derive"]
-# derive = ["ethers-derive"]
-# 

README.md

@@ -6,12 +6,15 @@ Complete Ethereum wallet implementation and utilities in Rust (with WASM and FFI
 
 - [x] User friendly transaction APIs
 - [x] Type-safe EIP-155 transactions
+- [x] Querying past events
 - [ ] Event Monitoring
 - [ ] Deploy and interact with smart contracts
 - [ ] Type safe smart contract bindings
 - [ ] Hardware wallet support
 - [ ] ...
 
+## Directory Structure
+
 ## Acknowledgements
 
 This library would not have been possibly without the great work of the creators of [`rust-web3`]() and [`ethcontract-rs`]()
@@ -19,33 +22,3 @@ This library would not have been possibly without the great work of the creators
 A lot of the code was inspired and adapted from them, to a unified and opinionated interface. 
 That said, Rust-web3 is ~9k LoC (tests included) and ethcontract-rs is 11k lines, 
 so in total about 20k lines of code with tests. This library is xxx LoC.
-
-## Examples
-
-### Sending a transaction with an offline key
-
-```rust
-use ethers::{types::TransactionRequest, HttpProvider, MainnetWallet};
-use std::convert::TryFrom;
-
-// connect to the network
-let provider = HttpProvider::try_from("http://localhost:8545")?;
-
-// create a wallet and connect it to the provider
-let client = "15c42bf2987d5a8a73804a8ea72fb4149f88adf73e98fc3f8a8ce9f24fcb7774"
-    .parse::<MainnetWallet>()?
-    .connect(&provider);
-
-// craft the transaction using the builder pattern
-let tx = TransactionRequest::new()
-    .send_to_str("986eE0C8B91A58e490Ee59718Cca41056Cf55f24")?
-    .value(10000);
-
-// send it!
-let tx = client.sign_and_send_transaction(tx, None).await?;
-
-// get the mined tx
-let tx = client.get_transaction(tx.hash).await?;
-
-println!("{}", serde_json::to_string(&tx)?);
-```

crates/ethers-abi/src/lib.rs

@@ -7,7 +7,7 @@ pub use ethabi::Contract as Abi;
 pub use ethabi::*;
 
 mod tokens;
-pub use tokens::{Detokenize, Tokenizable, TokenizableItem, Tokenize};
+pub use tokens::{Detokenize, InvalidOutputType, Tokenizable, TokenizableItem, Tokenize};
 
 /// Extension trait for `ethabi::Function`.
 pub trait FunctionExt {

crates/ethers-abi/src/tokens.rs

@@ -1,5 +1,6 @@
 //! Contract Functions Output types.
 //! Adapted from: https://github.com/tomusdrw/rust-web3/blob/master/src/contract/tokens.rs
+#[allow(clippy::all)]
 use crate::Token;
 
 use arrayvec::ArrayVec;

crates/ethers/Cargo.toml

@@ -4,8 +4,35 @@ 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
+[features]
+default = ["full"]
+full = [
+    "abi",
+    "contract",
+    "providers",
+    "signers",
+    "types",
+    "utils",
+]
+
+abi = ["ethers-abi"]
+contract = ["ethers-contract"]
+providers = ["ethers-providers"]
+signers = ["ethers-signers"]
+types = ["ethers-types"]
+utils = ["ethers-utils"]
 
 [dependencies]
+ethers-abi = { path = "../ethers-abi", optional = true }
+ethers-contract = { path = "../ethers-contract", optional = true }
+ethers-providers = { path = "../ethers-providers", optional = true }
+ethers-signers = { path = "../ethers-signers", optional = true }
+ethers-types = { path = "../ethers-types", optional = true }
+ethers-utils = { path = "../ethers-utils", optional = true }
 
-# TODO: Make this have features for each available module
+[dev-dependencies]
+anyhow = "1.0.31"
+tokio = { version = "0.2.21", features = ["macros"] }
+serde_json = "1.0.53"
+rand = "0.5.1" # note: when passing RNGs, they must be with version 0.5.1
+serde = { version = "1.0.110", features = ["derive"] }

crates/ethers/examples/contract.rs

@@ -1,9 +1,12 @@
-use ethabi::Token;
 use ethers::{
-    contract::{Contract, Detokenize},
+    abi::{Detokenize, InvalidOutputType, Token},
+    contract::Contract,
+    providers::HttpProvider,
+    signers::MainnetWallet,
     types::Address,
-    HttpProvider, MainnetWallet,
 };
+
+use anyhow::Result;
 use serde::Serialize;
 use std::convert::TryFrom;
 
@@ -18,9 +21,7 @@ struct ValueChanged {
 }
 
 impl Detokenize for ValueChanged {
-    fn from_tokens(
-        tokens: Vec<Token>,
-    ) -> Result<ValueChanged, ethers::contract::InvalidOutputType> {
+    fn from_tokens(tokens: Vec<Token>) -> Result<ValueChanged, InvalidOutputType> {
         let author: Address = tokens[0].clone().to_address().unwrap();
         let old_value = tokens[1].clone().to_string().unwrap();
         let new_value = tokens[2].clone().to_string().unwrap();
@@ -34,7 +35,7 @@ impl Detokenize for ValueChanged {
 }
 
 #[tokio::main]
-async fn main() -> Result<(), failure::Error> {
+async fn main() -> Result<()> {
     // connect to the network
     let provider = HttpProvider::try_from("http://localhost:8545")?;
 

crates/ethers/examples/get_logs.rs

@@ -1,11 +1,12 @@
+use anyhow::Result;
 use ethers::{
+    providers::HttpProvider,
     types::{Address, Filter},
-    HttpProvider,
 };
 use std::convert::TryFrom;
 
 #[tokio::main]
-async fn main() -> Result<(), failure::Error> {
+async fn main() -> Result<()> {
     // connect to the network
     let provider = HttpProvider::try_from("http://localhost:8545")?;
 

crates/ethers/examples/local_signer.rs

@@ -1,8 +1,9 @@
-use ethers::{types::TransactionRequest, HttpProvider, MainnetWallet};
+use anyhow::Result;
+use ethers::{providers::HttpProvider, signers::MainnetWallet, types::TransactionRequest};
 use std::convert::TryFrom;
 
 #[tokio::main]
-async fn main() -> Result<(), failure::Error> {
+async fn main() -> Result<()> {
     // connect to the network
     let provider = HttpProvider::try_from("http://localhost:8545")?;
 

crates/ethers/examples/sign.rs

@@ -1,4 +1,4 @@
-use ethers::{MainnetWallet as Wallet, Signer};
+use ethers::signers::{MainnetWallet as Wallet, Signer};
 
 fn main() {
     let message = "Some data";

crates/ethers/examples/transfer_eth.rs

@@ -1,11 +1,12 @@
+use anyhow::Result;
 use ethers::{
+    providers::HttpProvider,
     types::{BlockNumber, TransactionRequest},
-    HttpProvider,
 };
 use std::convert::TryFrom;
 
 #[tokio::main]
-async fn main() -> Result<(), failure::Error> {
+async fn main() -> Result<()> {
     // connect to the network
     let provider = HttpProvider::try_from("http://localhost:8545")?;
     let accounts = provider.get_accounts().await?;

crates/ethers/src/lib.rs

@@ -15,23 +15,32 @@
 //! More examples can be found in the [`examples` directory of the
 //! repositry](https://github.com/gakonst/ethers-rs)
 
-pub mod providers;
-pub use providers::HttpProvider;
+#[cfg(feature = "abi")]
+pub mod abi {
+    pub use ethers_abi::*;
+}
 
-pub mod contract;
-pub use contract::Contract;
+#[cfg(feature = "contract")]
+pub mod contract {
+    pub use ethers_contract::*;
+}
 
-pub(crate) mod signers;
-pub use signers::{AnyWallet, MainnetWallet, Signer};
+#[cfg(feature = "providers")]
+pub mod providers {
+    pub use ethers_providers::*;
+}
 
-/// Ethereum related datatypes
-pub mod types;
+#[cfg(feature = "signers")]
+pub mod signers {
+    pub use ethers_signers::*;
+}
 
-/// Re-export solc for convenience
-pub use solc;
+#[cfg(feature = "types")]
+pub mod types {
+    pub use ethers_types::*;
+}
 
-/// Various utilities
-pub mod utils;
-
-/// ABI utilities
-pub mod abi;
+#[cfg(feature = "utils")]
+pub mod utils {
+    pub use ethers_utils::*;
+}