fix examples

ethers-providers/src/lib.rs

@@ -11,9 +11,6 @@ use std::{error::Error, fmt::Debug};
 
 pub use provider::{Provider, ProviderError};
 
-/// An HTTP provider for interacting with an Ethereum-compatible blockchain
-pub type HttpProvider = Provider<Http>;
-
 #[async_trait]
 /// Trait which must be implemented by data transports to be used with the Ethereum
 /// JSON-RPC provider.

ethers-providers/src/provider.rs

@@ -25,9 +25,10 @@ pub struct Provider<P>(P, Option<Address>);
 #[derive(Debug, Error)]
 /// An error thrown when making a call to the provider
 pub enum ProviderError {
-    #[error(transparent)]
     // dyn dispatch the error to avoid generic return types
-    JsonRpcClientError(#[from] Box<dyn std::error::Error>),
+    #[error(transparent)]
+    JsonRpcClientError(#[from] Box<dyn std::error::Error + Send + Sync>),
+
     #[error("ens name not found: {0}")]
     EnsError(String),
 }
@@ -357,13 +358,12 @@ impl TryFrom<&str> for Provider<HttpProvider> {
 mod ens_tests {
     use super::*;
 
+    const INFURA: &str = "https://mainnet.infura.io/v3/c60b0bb42f8a4c6481ecd229eddaca27";
+
     #[tokio::test]
     // Test vector from: https://docs.ethers.io/ethers.js/v5-beta/api-providers.html#id2
     async fn mainnet_resolve_name() {
-        let provider = Provider::<HttpProvider>::try_from(
+        let provider = Provider::<HttpProvider>::try_from(INFURA).unwrap();
-            "https://mainnet.infura.io/v3/9408f47dedf04716a03ef994182cf150",
-        )
-        .unwrap();
 
         let addr = provider
             .resolve_name("registrar.firefly.eth")
@@ -389,10 +389,7 @@ mod ens_tests {
     #[tokio::test]
     // Test vector from: https://docs.ethers.io/ethers.js/v5-beta/api-providers.html#id2
     async fn mainnet_lookup_address() {
-        let provider = Provider::<HttpProvider>::try_from(
+        let provider = Provider::<HttpProvider>::try_from(INFURA).unwrap();
-            "https://mainnet.infura.io/v3/9408f47dedf04716a03ef994182cf150",
-        )
-        .unwrap();
 
         let name = provider
             .lookup_address("6fC21092DA55B392b045eD78F4732bff3C580e2c".parse().unwrap())

ethers-signers/src/client.rs

@@ -30,7 +30,7 @@ pub enum ClientError {
     ProviderError(#[from] ProviderError),
 
     #[error(transparent)]
-    SignerError(#[from] Box<dyn std::error::Error>),
+    SignerError(#[from] Box<dyn std::error::Error + Send + Sync>),
 
     #[error("ens name not found: {0}")]
     EnsError(String),
@@ -123,6 +123,11 @@ where
     pub fn signer_unchecked(&self) -> &S {
         self.signer.as_ref().expect("no signer is configured")
     }
+
+    pub fn with_signer(mut self, signer: S) -> Self {
+        self.signer = Some(signer);
+        self
+    }
 }
 
 // Abuse Deref to use the Provider's methods without re-writing everything.

ethers/examples/contract.rs

@@ -5,7 +5,7 @@ use ethers::{
 };
 use std::convert::TryFrom;
 
-// Generate the contract bindings by providing the ABI
+// Generate the type-safe contract bindings by providing the ABI
 abigen!(
     SimpleContract,
     r#"[{"inputs":[{"internalType":"string","name":"value","type":"string"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"author","type":"address"},{"indexed":false,"internalType":"string","name":"oldValue","type":"string"},{"indexed":false,"internalType":"string","name":"newValue","type":"string"}],"name":"ValueChanged","type":"event"},{"inputs":[],"name":"getValue","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","constant": true, "type":"function"},{"inputs":[{"internalType":"string","name":"value","type":"string"}],"name":"setValue","outputs":[],"stateMutability":"nonpayable","type":"function"}]"#,
@@ -28,14 +28,14 @@ async fn main() -> Result<()> {
         .spawn();
 
     // 3. instantiate our wallet
-    let wallet = "380eb0f3d505f087e438eca80bc4df9a7faa24f868e69fc0440261a0fc0567dc"
+    let wallet =
-        .parse::<MainnetWallet>()?;
+        "380eb0f3d505f087e438eca80bc4df9a7faa24f868e69fc0440261a0fc0567dc".parse::<Wallet>()?;
 
     // 4. connect to the network
-    let provider = HttpProvider::try_from(url.as_str())?;
+    let provider = Provider::<Http>::try_from(url.as_str())?;
 
     // 5. instantiate the client with the wallet
-    let client = wallet.connect(&provider);
+    let client = wallet.connect(provider);
 
     // 6. create a factory which will be used to deploy instances of the contract
     let factory = ContractFactory::new(&client, &contract.abi, &contract.bytecode);

ethers/examples/ens.rs

@@ -5,13 +5,14 @@ use std::convert::TryFrom;
 #[tokio::main]
 async fn main() -> Result<()> {
     // connect to the network
-    let provider =
+    let provider = Provider::<Http>::try_from(
-        HttpProvider::try_from("https://mainnet.infura.io/v3/9408f47dedf04716a03ef994182cf150")?;
+        "https://mainnet.infura.io/v3/c60b0bb42f8a4c6481ecd229eddaca27",
+    )?;
 
     // create a wallet and connect it to the provider
     let client = "dcf2cbdd171a21c480aa7f53d77f31bb102282b3ff099c78e3118b37348c72f7"
-        .parse::<MainnetWallet>()?
+        .parse::<Wallet>()?
-        .connect(&provider);
+        .connect(provider);
 
     // craft the transaction
     let tx = TransactionRequest::new().to("vitalik.eth").value(100_000);

ethers/examples/get_logs.rs

@@ -1,11 +1,11 @@
 use anyhow::Result;
-use ethers::{networks::Any, prelude::*};
+use ethers::prelude::*;
 use std::convert::TryFrom;
 
 #[tokio::main]
 async fn main() -> Result<()> {
     // connect to the network
-    let provider = HttpProvider::<Any>::try_from("http://localhost:8545")?;
+    let provider = Provider::<Http>::try_from("http://localhost:8545")?;
 
     let filter = Filter::new()
         .address_str("f817796F60D268A36a57b8D2dF1B97B14C0D0E1d")?

ethers/examples/local_signer.rs

@@ -10,15 +10,16 @@ async fn main() -> Result<()> {
         .port(port)
         .mnemonic("abstract vacuum mammal awkward pudding scene penalty purchase dinner depart evoke puzzle")
         .spawn();
+
     // this private key belongs to the above mnemonic
-    let wallet: MainnetWallet =
+    let wallet: Wallet =
         "380eb0f3d505f087e438eca80bc4df9a7faa24f868e69fc0440261a0fc0567dc".parse()?;
 
     // connect to the network
-    let provider = HttpProvider::try_from(url.as_str())?;
+    let provider = Provider::<Http>::try_from(url.as_str())?;
 
     // connect the wallet to the provider
-    let client = wallet.connect(&provider);
+    let client = wallet.connect(provider);
 
     // craft the transaction
     let tx = TransactionRequest::new()

ethers/examples/sign.rs

@@ -2,7 +2,7 @@ use ethers::prelude::*;
 
 fn main() {
     let message = "Some data";
-    let wallet = MainnetWallet::new(&mut rand::thread_rng());
+    let wallet = Wallet::new(&mut rand::thread_rng());
 
     // sign a message
     let signature = wallet.sign_message(message);

ethers/examples/transfer_eth.rs

@@ -1,5 +1,5 @@
 use anyhow::Result;
-use ethers::{networks::Any, prelude::*, utils::GanacheBuilder};
+use ethers::{prelude::*, utils::GanacheBuilder};
 use std::convert::TryFrom;
 
 #[tokio::main]
@@ -9,7 +9,7 @@ async fn main() -> Result<()> {
     let _ganache = GanacheBuilder::new().port(port).spawn();
 
     // connect to the network
-    let provider = HttpProvider::<Any>::try_from(url.as_str())?;
+    let provider = Provider::<Http>::try_from(url.as_str())?;
     let accounts = provider.get_accounts().await?;
     let from = accounts[0];