add a prelude to make importing stuff easier

crates/ethers/examples/contract.rs

@@ -1,9 +1,7 @@
 use anyhow::Result;
 use ethers::{
-    contract::{abigen, ContractFactory},
+    prelude::*,
-    core::utils::{GanacheBuilder, Solc},
+    utils::{GanacheBuilder, Solc},
-    providers::HttpProvider,
-    signers::MainnetWallet,
 };
 use std::convert::TryFrom;
 

crates/ethers/examples/ens.rs

@@ -1,5 +1,5 @@
 use anyhow::Result;
-use ethers::{core::types::TransactionRequest, providers::HttpProvider, signers::MainnetWallet};
+use ethers::prelude::*;
 use std::convert::TryFrom;
 
 #[tokio::main]

crates/ethers/examples/get_logs.rs

@@ -1,8 +1,5 @@
 use anyhow::Result;
-use ethers::{
+use ethers::{networks::Any, prelude::*};
-    core::types::{Address, Filter},
-    providers::{networks::Any, HttpProvider},
-};
 use std::convert::TryFrom;
 
 #[tokio::main]

crates/ethers/examples/local_signer.rs

@@ -1,9 +1,5 @@
 use anyhow::Result;
-use ethers::{
+use ethers::{prelude::*, utils::GanacheBuilder};
-    core::{types::TransactionRequest, utils::GanacheBuilder},
-    providers::HttpProvider,
-    signers::MainnetWallet,
-};
 use std::convert::TryFrom;
 
 #[tokio::main]
@@ -37,7 +33,7 @@ async fn main() -> Result<()> {
 
     let receipt = client.get_transaction_receipt(tx.hash).await?;
 
-    println!("Send tx: {}", serde_json::to_string(&tx)?);
+    println!("Sent tx: {}\n", serde_json::to_string(&tx)?);
     println!("Tx receipt: {}", serde_json::to_string(&receipt)?);
 
     Ok(())

crates/ethers/examples/sign.rs

@@ -1,8 +1,8 @@
-use ethers::signers::{MainnetWallet as Wallet, Signer};
+use ethers::prelude::*;
 
 fn main() {
     let message = "Some data";
-    let wallet = Wallet::new(&mut rand::thread_rng());
+    let wallet = MainnetWallet::new(&mut rand::thread_rng());
 
     // sign a message
     let signature = wallet.sign_message(message);

crates/ethers/examples/transfer_eth.rs

@@ -1,11 +1,5 @@
 use anyhow::Result;
-use ethers::{
+use ethers::{networks::Any, prelude::*, utils::GanacheBuilder};
-    core::{
-        types::{BlockNumber, TransactionRequest},
-        utils::GanacheBuilder,
-    },
-    providers::{networks::Any, HttpProvider},
-};
 use std::convert::TryFrom;
 
 #[tokio::main]

crates/ethers/src/lib.rs

@@ -34,3 +34,26 @@ pub mod signers {
 pub mod core {
     pub use ethers_core::*;
 }
+
+// Re-export ethers_core::utils
+#[cfg(feature = "core")]
+pub use ethers_core::utils;
+
+// Re-export ethers_providers::networks
+#[cfg(feature = "providers")]
+pub use ethers_providers::networks;
+
+/// Brings all types, contract, providers and signer imports into scope
+pub mod prelude {
+    #[cfg(feature = "contract")]
+    pub use ethers_contract::*;
+
+    #[cfg(feature = "providers")]
+    pub use ethers_providers::*;
+
+    #[cfg(feature = "signers")]
+    pub use ethers_signers::*;
+
+    #[cfg(feature = "core")]
+    pub use ethers_core::types::*;
+}