Markup

api/src/StamperWrapper.js

+import { sign } from "crypto";
+
 //const stamperInterface = require('../../contract/build/contracts/Stamper.json')
 
 class Stamper {
     constructor(web3, contractAbi, contractAddress) {
         this.web3 = web3
+        this.contractAddress = contractAddress
         this.contract = new web3.eth.Contract(contractAbi, contractAddress)
     }
 
-    setSender(fromAddress) {
-        this.from = fromAddress
-    }
-
-    async stamp(hashes) {
+    // stampea un conjunto de hashes.
+    // si walletAccount es undefined trata de usar la account de web3.eth.defaultAccount
+    async stamp(hashes, walletAccount) {
         console.log(`stamping ${hashes}`)
 
+        let defaultAccount = (walletAccount) ? walletAccount.address : this.web3.eth.defaultAccount
         let hashesToStamp = []
 
         for (let i=0; i < hashes.length; i++) {
-            let blockNo = await this.contract.methods.getBlockNo(hashes[i], this.from).call()
+            let blockNo = await this.contract.methods.getBlockNo(hashes[i], defaultAccount).call()
             if (blockNo == 0) hashesToStamp.push(hashes[i])
         }
 
@@ -25,10 +27,36 @@ class Stamper {
             resolve()
         })
 
-        let txPromise = this.contract.methods.put(hashesToStamp).send({
-            from: this.from,
-            gasLimit: 500000
-        })
+        let txPromise
+        let gasLimit = 2000000
+
+        if (walletAccount) {
+            let methodPut = this.contract.methods.put(hashesToStamp)
+            let encodedABI = methodPut.encodeABI()
+
+            let tx = {
+                to: this.contractAddress,
+                // v: 47525974938 * 35 + 2,
+                // v: 47525974938,
+                chainId: '200941592',
+                gas: gasLimit,
+                // gasLimit: gasLimit,
+                data: encodedABI
+            }
+            // tx.v = Buffer.from([47525974938])
+            // tx.nonce = this.web3.utils.toHex(await this.web3.eth.getTransactionCount(defaultAccount))
+
+            let signedTx = await walletAccount.signTransaction(tx)
+            // console.log(signedTx)
+            // txPromise = this.web3.eth.sendSignedTransaction(signedTx)
+            // txPromise = this.web3.eth.sendSignedTransaction('0x' + signedTx.serialize().toString('hex'))
+            txPromise = this.web3.eth.sendSignedTransaction(signedTx.rawTransaction)
+        } else {
+            txPromise = this.contract.methods.put(hashesToStamp).send({
+                from: defaultAccount,
+                gasLimit: gasLimit
+            })
+        }
 
         txPromise.then((receipt) => {
             console.log(`> hashes stampeados en bloque: ${receipt.blockNumber}`)