EncryptMessage.js Create EncryptMessage page
import { Account, Deadline, NetworkType, TransferTransaction, TransactionHttp, PublicAccount } from 'nem2-sdk'
import { Box, Button, Container, TextField, Typography } from '@material-ui/core'
import React, { Component } from 'react'
# 親の顔より見たコンポーネント
class EncryptMessage extends Component {
constructor(props) {
super(props)
this.state = {
input: {
public_key: '',
message: '',
},
}
}
# input: という書き方
handleFormInputChanged(event) {
this.setState({
input: {
...this.state.input,
[event.target.name]: event.target.value,
},
})
}
# 公開鍵をもらってくる、秘密鍵を作る、公開鍵で暗号化？
handleSendMessage() {
if (this.state.input.public_key.length === 64) {
try {
const privateKey = process.env.REACT_APP_PRIVATE_KEY
const account = Account.createFromPrivateKey(privateKey, NetworkType.MIJIN_TEST)
const RecipientAccount = PublicAccount.createFromPublicKey(this.state.input.public_key, NetworkType.MIJIN_TEST)
const encryptedMessage = account.encryptMessage(this.state.input.message, RecipientAccount)
const transferTransaction = TransferTransaction.create(
Deadline.create(),
RecipientAccount.address,
[],
encryptedMessage,
NetworkType.MIJIN_TEST
)
const signedTransaction = account.sign(transferTransaction, process.env.REACT_APP_NETWORK_GENERATION_HASH)
const transactionHttp = new TransactionHttp('http://localhost:3000')
# この書き方は重要かもしれない
transactionHttp.announce(signedTransaction).subscribe(x => console.log(x), err => console.error(err))
} catch (e) {
console.log(e)
}
}
}
render() {
return (
<Container maxWidth="md">
<Box m={2}>
<Box p={1}>
<Typography variant="h4" gutterBottom>
暗号化メッセージを含むトランザクションの作成
</Typography>
</Box>
<Box p={1}>
<Typography variant="body1" gutterBottom>
受け手の公開鍵
</Typography>
<TextField
label="Recipient Public Key"
name="public_key"
onChange={this.handleFormInputChanged.bind(this)}
value={this.state.input.public_key}
margin="normal"
fullWidth
/>
</Box>
<Box p={1}>
<Typography variant="body1" gutterBottom>
メッセージ
</Typography>
<TextField
label="メッセージ"
name="message"
onChange={this.handleFormInputChanged.bind(this)}
value={this.state.input.message}
margin="normal"
fullWidth
/>
<Button variant="contained" color="primary" onClick={this.handleSendMessage.bind(this)}>
送金
</Button>
</Box>
</Box>
</Container>
)
}
}
export default EncryptMessage
