Added ability to send a transaction (#8)

Author: EvgenKor

lib/networks/client.d.ts

@@ -44,4 +44,5 @@ export declare abstract class Client {
     estimateTxFee(): Promise<TxFee>;
     sign(data: string): Promise<string>;
     signTypedData(data: any): Promise<string>;
+    sendTransaction(to: string, amount: bigint, data: string): Promise<string>;
 }

lib/networks/client.js

@@ -43,4 +43,5 @@ export declare class EthereumClient extends Client {
     directDeposit(poolAddress: string, amount: string, zkAddress: string): Promise<string>;
     sign(data: string): Promise<string>;
     signTypedData(data: object): Promise<string>;
+    sendTransaction(to: string, amount: bigint, data: string): Promise<string>;
 }

lib/networks/client.js.map

@@ -1,6 +1,6 @@
 {
   "name": "zeropool-support-js",
-  "version": "0.8.0",
+  "version": "0.9.0",
   "license": "MIT",
   "author": "Dmitry Vdovin <voidxnull@gmail.com>",
   "homepage": "https://github.com/zeropoolnetwork/zeropool-api-js",

lib/networks/evm/client.d.ts

@@ -101,4 +101,8 @@ export abstract class Client {
   public async signTypedData(data: any): Promise<string> {
     throw new Error('unimplemented');
   }
+
+  public async sendTransaction(to: string, amount: bigint, data: string): Promise<string> {
+    throw new Error('unimplemented');
+  }
 }

lib/networks/evm/client.js

@@ -347,4 +347,26 @@ export class EthereumClient extends Client {
 
     return signPromise;
   }
+
+  public async sendTransaction(to: string, amount: bigint, data: string): Promise<string> {
+    const address = await this.getAddress();
+    var txObject: TransactionConfig = {
+      from: address,
+      to,
+      value: amount.toString(),
+      data,
+    };
+
+    const gas = await this.web3.eth.estimateGas(txObject);
+    const gasPrice = Number(await this.web3.eth.getGasPrice());
+    const nonce = await this.web3.eth.getTransactionCount(address);
+    txObject.gas = gas;
+    txObject.gasPrice = `0x${BigInt(Math.ceil(gasPrice * this.gasMultiplier)).toString(16)}`;
+    txObject.nonce = nonce;
+
+    const signedTx = await this.web3.eth.signTransaction(txObject);
+    const receipt = await this.web3.eth.sendSignedTransaction(signedTx.raw);
+
+    return receipt.transactionHash;
+  }
 }