add docs to ethers-signer

crates/ethers-signers/src/client.rs

@@ -6,6 +6,9 @@ use ethers_types::{Address, BlockNumber, NameOrAddress, TransactionRequest, TxHa
 use std::ops::Deref;
 
 #[derive(Clone, Debug)]
+/// A client provides an interface for signing and broadcasting locally signed transactions
+/// It Derefs to `Provider`, which allows interacting with the Ethereum JSON-RPC provider
+/// via the same API.
 pub struct Client<'a, P, N, S> {
     pub(crate) provider: &'a Provider<P, N>,
     pub(crate) signer: Option<S>,
@@ -26,8 +29,7 @@ where
     P: JsonRpcClient,
     N: Network,
 {
-    /// Signs the transaction and then broadcasts its RLP encoding via the `eth_sendRawTransaction`
+    /// Signs and broadcasts the transaction
-    /// API
     pub async fn send_transaction(
         &self,
         mut tx: TransactionRequest,
@@ -92,6 +94,7 @@ where
         Ok(())
     }
 
+    /// Returns the client's address
     pub fn address(&self) -> Address {
         self.signer
             .as_ref()
@@ -99,6 +102,7 @@ where
             .unwrap_or_default()
     }
 
+    /// Returns a reference to the client's provider
     pub fn provider(&self) -> &Provider<P, N> {
         self.provider
     }

crates/ethers-signers/src/lib.rs

@@ -1,14 +1,42 @@
-//! Ethereum compatible signers
+//! # ethers-signers
 //!
-//! Currently supported:
+//! Provides a unified interface for locally signing transactions and interacting
-//! - [x] Private Key
+//! with the Ethereum JSON-RPC. You can implement the `Signer` trait to extend
-//! - [ ] Encrypted Json
+//! functionality to other signers such as Hardware Security Modules, KMS etc.
-//! - [ ] Ledger
-//! - [ ] Trezor
 //!
-//! Implement the `Signer` trait to add support for new signers, e.g. with Ledger.
+//! ```ignore
+//! # use anyhow::Result;
+//! # use ethers::{providers::HttpProvider, signers::MainnetWallet, types::TransactionRequest};
+//! # use std::convert::TryFrom;
+//! # async fn main() -> Result<()> {
+//! // connect to the network
+//! let provider = HttpProvider::try_from("http://localhost:8545")?;
 //!
-//! TODO: We might need a `SignerAsync` trait for HSM use cases?
+//! // instantiate the wallet and connect it to the provider to get a client
+//! let client = "dcf2cbdd171a21c480aa7f53d77f31bb102282b3ff099c78e3118b37348c72f7"
+//!     .parse::<MainnetWallet>()?
+//!     .connect(&provider);
+//!
+//! // create a transaction
+//! let tx = TransactionRequest::new()
+//!     .to("vitalik.eth") // this will use ENS
+//!     .value(10000);
+//!
+//! // send it! (this will resolve the ENS name to an address under the hood)
+//! let hash = client.send_transaction(tx, None).await?;
+//!
+//! // get the mined tx
+//! let tx = client.get_transaction(hash).await?;
+//!
+//! // get the receipt
+//! let receipt = client.get_transaction_receipt(tx.hash).await?;
+//!
+//! println!("{}", serde_json::to_string(&tx)?);
+//! println!("{}", serde_json::to_string(&receipt)?);
+//!
+//! # Ok(())
+//! # }
+// TODO: We might need a `SignerAsync` trait for HSM use cases?
 
 mod wallet;
 pub use wallet::Wallet;

crates/ethers-signers/src/wallet.rs

@@ -9,11 +9,14 @@ use ethers_types::{
 
 use std::{marker::PhantomData, str::FromStr};
 
-/// A keypair
+/// An Ethereum keypair
 #[derive(Clone, Debug)]
 pub struct Wallet<N> {
+    /// The Wallet's private Key
     pub private_key: PrivateKey,
+    /// The Wallet's public Key
     pub public_key: PublicKey,
+    /// The wallet's address
     pub address: Address,
     network: PhantomData<N>,
 }