From 8ff9a894c0946245ba7f746b7081c67565edcc34 Mon Sep 17 00:00:00 2001
From: Georgios Konstantopoulos <me@gakonst.com>
Date: Sun, 20 Sep 2020 21:27:00 +0300
Subject: [PATCH] chore: add example for ledger

---
 ethers-signers/src/ledger/types.rs |  2 --
 ethers-signers/src/lib.rs          |  4 +++-
 ethers/Cargo.toml                  |  1 +
 ethers/examples/ledger.rs          | 25 +++++++++++++++++++++++++
 4 files changed, 29 insertions(+), 3 deletions(-)
 create mode 100644 ethers/examples/ledger.rs

diff --git a/ethers-signers/src/ledger/types.rs b/ethers-signers/src/ledger/types.rs
index 6284455b..eba06171 100644
--- a/ethers-signers/src/ledger/types.rs
+++ b/ethers-signers/src/ledger/types.rs
@@ -56,7 +56,6 @@ pub enum INS {
 #[derive(Debug, Copy, Clone, Eq, PartialEq)]
 #[allow(non_camel_case_types)]
 pub enum P1 {
-    CONFIRM = 0x01,
     NON_CONFIRM = 0x00,
     MORE = 0x80,
 }
@@ -65,6 +64,5 @@ pub enum P1 {
 #[derive(Debug, Copy, Clone, Eq, PartialEq)]
 #[allow(non_camel_case_types)]
 pub enum P2 {
-    CHAINCODE = 0x01,
     NO_CHAINCODE = 0x00,
 }
diff --git a/ethers-signers/src/lib.rs b/ethers-signers/src/lib.rs
index 71d68030..a1c1d298 100644
--- a/ethers-signers/src/lib.rs
+++ b/ethers-signers/src/lib.rs
@@ -41,7 +41,9 @@ mod wallet;
 pub use wallet::Wallet;
 
 #[cfg(feature = "ledger")]
-pub mod ledger;
+mod ledger;
+#[cfg(feature = "ledger")]
+pub use ledger::{app::LedgerEthereum as Ledger, types::{LedgerError, DerivationType as HDPath}};
 
 mod nonce_manager;
 pub(crate) use nonce_manager::NonceManager;
diff --git a/ethers/Cargo.toml b/ethers/Cargo.toml
index 32c738e6..1901dc8a 100644
--- a/ethers/Cargo.toml
+++ b/ethers/Cargo.toml
@@ -40,6 +40,7 @@ core = ["ethers-core"]
 contract = ["ethers-contract"]
 providers = ["ethers-providers"]
 signers = ["ethers-signers"]
+ledger = ["ethers-signers/ledger"]
 
 [dependencies]
 ethers-contract = { version = "0.1.3", path = "../ethers-contract", optional = true }
diff --git a/ethers/examples/ledger.rs b/ethers/examples/ledger.rs
new file mode 100644
index 00000000..8d6282c7
--- /dev/null
+++ b/ethers/examples/ledger.rs
@@ -0,0 +1,25 @@
+use anyhow::Result;
+use ethers::{utils::parse_ether, prelude::*};
+
+#[tokio::main]
+async fn main() -> Result<()> {
+    // Connect over websockets
+    let provider = Provider::new(Ws::connect("ws://localhost:8545").await?);
+    // Instantiate the connection to ledger with Ledger Live derivation path and
+    // the wallet's index. Alternatively, you may use Legacy with the wallet's
+    // index or supply the  full HD path string. You may also provide the chain_id
+    // (here: mainnet) for EIP155 support.
+    let ledger = Ledger::new(HDPath::LedgerLive(0), Some(1)).await?;
+    let client = Client::new(provider, ledger).await?;
+
+    // Create and broadcast a transaction (ENS enabled!)
+    // (this will require confirming the tx on the device)
+    let tx = TransactionRequest::new()
+        .to("vitalik.eth")
+        .value(parse_ether(10)?);
+    let tx_hash = client.send_transaction(tx, None).await?;
+
+    // Get the receipt
+    let receipt = client.pending_transaction(tx_hash).confirmations(3).await?;
+    Ok(())
+}