blockchain-js

User Javascript for simple blockchain simulation

Tools

• express.js
• vue.js
• webpack4

API

See your blockchain

• /blockchain

transaction your block

• /transaction/broadcast

Verify the block [nonce]

• /mine

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Server Node API

Broadcast all node and Synchronize new node

• /register-and-broadcast-node

Synchronize new node

• /register-node

Broadcast

• /register-nodes-bulk

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安裝

• npm run build

如何使用

0. 先同步節點 /BlockData
1. 發起交易 /BlockTransaction
2. 生成待驗證之交易

"pendingTransactions":[{}],"currentNodeUrl":"http://localhost:3001","networkNodes":[]

3. 驗證交易(挖礦) /mine

{"note":"New block mined successfully!","block":{"index":2,"timestamp":1544953463473,"transactions":[{}],"nonce":204174,"hash":"000026ba598492e722df4cf5473603a4fc1e0b946d0021a40c8f924ec006a0d0","previousBlockHash":"0"}}

4. 使用 /BlockExplorer查看

操作

1. 創建初始區塊 this.createNewBlock(100, '0', '0');
2. createNewTransaction 建立新的交易並放進待驗證之交易中addTransactionToPendingTransactions
3. 廣播所有節點有待完成之交易
4. 挖礦/mine POF計算nonce(每個節點所爭搶的值)
5. 使用新的nonce 再去 hashBlock 產生新的Block
6. 挖礦費用加入新的block的待驗證交易