5 files changed, 76 insertions, 32 deletions
diff --git a/packages/subproviders/package.json b/packages/subproviders/package.json
index ec0642bce..7c02b5745 100644
--- a/packages/subproviders/package.json
+++ b/packages/subproviders/package.json
@@ -21,12 +21,14 @@
         "@0xproject/assert": "^0.1.0",
         "@0xproject/types": "^0.3.0",
         "@0xproject/utils": "^0.4.0",
+        "@ledgerhq/hw-app-eth": "^4.3.0",
+        "@ledgerhq/hw-transport": "^4.3.0",
+        "@ledgerhq/hw-transport-u2f": "^4.3.0",
         "bn.js": "^4.11.8",
         "es6-promisify": "^5.0.0",
         "ethereumjs-tx": "^1.3.3",
         "ethereumjs-util": "^5.1.1",
         "hdkey": "^0.7.1",
-        "ledgerco": "0xProject/ledger-node-js-api",
         "lodash": "^4.17.4",
         "semaphore-async-await": "^1.5.1",
         "web3": "^0.20.0",
diff --git a/packages/subproviders/src/globals.d.ts b/packages/subproviders/src/globals.d.ts
index 6f344dcd3..0c8b3fed3 100644
--- a/packages/subproviders/src/globals.d.ts
+++ b/packages/subproviders/src/globals.d.ts
@@ -32,6 +32,28 @@ interface ECSignature {
     r: string;
     s: string;
 }
+
+interface LedgerTransport {
+   close(): Promise<void>
+}
+
+declare module '@ledgerhq/hw-app-eth' {
+    export class Eth {
+        constructor(transport: LedgerTransport);
+        public getAddress(path: string, boolDisplay?: boolean, boolChaincode?: boolean): Promise<{ publicKey: string; address: string; chainCode: string }>;
+        public signTransaction(path: string, rawTxHex: string): Promise<ECSignatureString>;
+        public getAppConfiguration(): Promise<{ arbitraryDataEnabled: number; version: string; }>;
+        public signPersonalMessage(path: string, messageHex: string): Promise<ECSignature>;
+        transport: LedgerTransport;
+    }
+}
+declare module '@ledgerhq/hw-transport-u2f' {
+    export class TransportU2F implements LedgerTransport {
+        public static create(): Promise<TransportU2F>;
+        public close(): Promise<void>;
+    }
+}
+
 declare module 'ledgerco' {
     interface comm {
         close_async(): Promise<void>;
diff --git a/packages/subproviders/src/index.ts b/packages/subproviders/src/index.ts
index 4da405ec0..566743fd0 100644
--- a/packages/subproviders/src/index.ts
+++ b/packages/subproviders/src/index.ts
@@ -1,8 +1,10 @@
 import {
-    comm_node as LedgerNodeCommunication,
-    comm_u2f as LedgerBrowserCommunication,
-    eth as LedgerEthereumClientFn,
-} from 'ledgerco';
+    Eth as LedgerEthereumClientFn,
+} from '@ledgerhq/hw-app-eth';
+
+import {
+    TransportU2F as LedgerBrowserCommunication,
+} from '@ledgerhq/hw-transport-u2f';
 
 import { LedgerEthereumClient } from './types';
 
@@ -19,17 +21,17 @@ export { ECSignature, LedgerWalletSubprovider, LedgerCommunicationClient, NonceS
  * @return LedgerEthereumClient A browser client
  */
 export async function ledgerEthereumBrowserClientFactoryAsync(): Promise<LedgerEthereumClient> {
-    const ledgerConnection = await LedgerBrowserCommunication.create_async();
+    const ledgerConnection = await LedgerBrowserCommunication.create();
     const ledgerEthClient = new LedgerEthereumClientFn(ledgerConnection);
     return ledgerEthClient;
 }
 
-/**
- * A factory for creating a LedgerEthereumClient usable in a Node.js context.
- * @return LedgerEthereumClient A Node.js client
- */
-export async function ledgerEthereumNodeJsClientFactoryAsync(): Promise<LedgerEthereumClient> {
-    const ledgerConnection = await LedgerNodeCommunication.create_async();
-    const ledgerEthClient = new LedgerEthereumClientFn(ledgerConnection);
-    return ledgerEthClient;
-}
+// /**
+//  * A factory for creating a LedgerEthereumClient usable in a Node.js context.
+//  * @return LedgerEthereumClient A Node.js client
+//  */
+// export async function ledgerEthereumNodeJsClientFactoryAsync(): Promise<LedgerEthereumClient> {
+//     const ledgerConnection = await LedgerNodeCommunication.create_async();
+//     const ledgerEthClient = new LedgerEthereumClientFn(ledgerConnection);
+//     return ledgerEthClient;
+// }
diff --git a/packages/subproviders/src/subproviders/ledger.ts b/packages/subproviders/src/subproviders/ledger.ts
index 85cdf0efc..0a84caae3 100644
--- a/packages/subproviders/src/subproviders/ledger.ts
+++ b/packages/subproviders/src/subproviders/ledger.ts
@@ -134,7 +134,7 @@ export class LedgerSubprovider extends Subprovider {
 
         let ledgerResponse;
         try {
-            ledgerResponse = await this._ledgerClientIfExists.getAddress_async(
+            ledgerResponse = await this._ledgerClientIfExists.getAddress(
                 this._derivationPath,
                 this._shouldAlwaysAskForConfirmation,
                 SHOULD_GET_CHAIN_CODE,
@@ -173,7 +173,7 @@ export class LedgerSubprovider extends Subprovider {
         const txHex = tx.serialize().toString('hex');
         try {
             const derivationPath = this._getDerivationPath();
-            const result = await this._ledgerClientIfExists.signTransaction_async(derivationPath, txHex);
+            const result = await this._ledgerClientIfExists.signTransaction(derivationPath, txHex);
             // Store signature in transaction
             tx.r = Buffer.from(result.r, 'hex');
             tx.s = Buffer.from(result.s, 'hex');
@@ -199,7 +199,7 @@ export class LedgerSubprovider extends Subprovider {
         this._ledgerClientIfExists = await this._createLedgerClientAsync();
         try {
             const derivationPath = this._getDerivationPath();
-            const result = await this._ledgerClientIfExists.signPersonalMessage_async(
+            const result = await this._ledgerClientIfExists.signPersonalMessage(
                 derivationPath,
                 ethUtil.stripHexPrefix(data),
             );
@@ -236,7 +236,7 @@ export class LedgerSubprovider extends Subprovider {
             this._connectionLock.signal();
             return;
         }
-        await this._ledgerClientIfExists.comm.close_async();
+        await this._ledgerClientIfExists.transport.close();
         this._ledgerClientIfExists = undefined;
         this._connectionLock.signal();
     }
diff --git a/packages/subproviders/src/types.ts b/packages/subproviders/src/types.ts
index 65b7f6c8f..785547a22 100644
--- a/packages/subproviders/src/types.ts
+++ b/packages/subproviders/src/types.ts
@@ -1,7 +1,25 @@
 import * as _ from 'lodash';
 
+declare class LedgerTransport {
+    // tslint:disable-next-line:async-suffix
+    public static create(): Promise<LedgerTransport>;
+    // tslint:disable-next-line:async-suffix
+    public static close(): Promise<void>;
+}
+
 export interface LedgerCommunicationClient {
-    close_async: () => Promise<void>;
+    close: () => Promise<void>;
+}
+
+export interface LedgerEthereumClient {
+    getAddress: (
+        derivationPath: string,
+        askForDeviceConfirmation?: boolean,
+        shouldGetChainCode?: boolean,
+    ) => Promise<{ publicKey: string; address: string; chainCode: string }>;
+    signTransaction: (derivationPath: string, rawTxHex: string) => Promise<ECSignatureString>;
+    signPersonalMessage: (derivationPath: string, messageHex: string) => Promise<ECSignature>;
+    transport: LedgerCommunicationClient;
 }
 
 /*
@@ -9,18 +27,18 @@ export interface LedgerCommunicationClient {
  * It uses an internal LedgerCommunicationClient to relay these requests. Currently
  * NodeJs and Browser communication are supported.
  */
-export interface LedgerEthereumClient {
-    // shouldGetChainCode is defined as `true` instead of `boolean` because other types rely on the assumption
-    // that we get back the chain code and we don't have dependent types to express it properly
-    getAddress_async: (
-        derivationPath: string,
-        askForDeviceConfirmation: boolean,
-        shouldGetChainCode: true,
-    ) => Promise<LedgerGetAddressResult>;
-    signPersonalMessage_async: (derivationPath: string, messageHex: string) => Promise<ECSignature>;
-    signTransaction_async: (derivationPath: string, txHex: string) => Promise<ECSignatureString>;
-    comm: LedgerCommunicationClient;
-}
+// export interface LedgerEthereumClient {
+//     // shouldGetChainCode is defined as `true` instead of `boolean` because other types rely on the assumption
+//     // that we get back the chain code and we don't have dependent types to express it properly
+//     getAddress_async: (
+//         derivationPath: string,
+//         askForDeviceConfirmation: boolean,
+//         shouldGetChainCode: true,
+//     ) => Promise<LedgerGetAddressResult>;
+//     signPersonalMessage_async: (derivationPath: string, messageHex: string) => Promise<ECSignature>;
+//     signTransaction_async: (derivationPath: string, txHex: string) => Promise<ECSignatureString>;
+//     comm: LedgerCommunicationClient;
+// }
 
 export interface ECSignatureString {
     v: string;