Blockchain:week0

blockchain.json

@@ -1,6 +1,17 @@
 [
   {
-    "hash": "0",
-    "previousHash": null
+    "previousHash": null,
+    "hash": "0"
+  },
+  {
+    "previousHash": "0",
+    "hash": "01000",
+    "transactions": [
+      {
+        "fromAddress": "123",
+        "toAddress": "456",
+        "amount": 789
+      }
+    ]
   }
 ]

src/add-block.js

@@ -12,9 +12,19 @@ const addBlock = () => {
 
 	// Create a hash, previousHash and transactions property for newBlock and push that into blockchain
 
-	blockchain.push();
+	const newBlock={
+		previousHash : previousBlock.hash,
+		hash : previousBlock.hash+1000,
+		transactions : [{
+			fromAddress: "123",
+			toAddress: "456",
+			amount: 789,
+		}],
+	};
+
+	blockchain.push(newBlock);
 	writeBlockchain(blockchain);
 	writeTransactions([]);
 };
 
-module.exports = { addBlock };
+module.exports = { addBlock };

src/add-transaction.js

@@ -5,12 +5,19 @@ const addTransaction = () => {
 	const toAddress = process.argv[3];
 	const amount = parseInt(process.argv[4]);
 
-	// Xreate new transactions and push them into transactions.json containing the above properties
+	// Create new transactions and push them into transactions.json containing the above properties
 	// Refer blockchain-helpers.js for writeTransactions and getTransactions
 
+	const newTransaction ={
+		fromAddress: "123",
+		toAddress: "456",
+		amount: 789,
+	};
+
+
 	const transactions = getTransactions();
-	transactions.push();
+	transactions.push(newTransaction);
 	writeTransactions(transactions);
 };
 
-module.exports = { addTransaction };
+module.exports = { addTransaction };

src/init-blockchain.js

@@ -1,13 +1,20 @@
 // Start here
-
 const { writeBlockchain } = require("./blockchain-helpers");
 
 const initBlockchain = () => {
+
 	// Create a genesisBlock and add appropriate hash and previous hash property to genesisBlock
+	const genesisBlock = {
+		previousHash: null,
+		hash: "0"
+	};
 
 	// Create a blockchain constant containing genesisBlock
+	const blockchain = [genesisBlock];
+
 	// Refer writeBlockchain function from blockchain-helpers
 	writeBlockchain(blockchain);
+
 };
 
-module.exports = { initBlockchain };
+module.exports = { initBlockchain };