feat(explorer): Created a block explorer for P2WDB

src/explorer/index.js

@@ -0,0 +1,172 @@
+import React from 'react'
+import { Row, Col, Content, Box, DataTable } from 'adminlte-2-react'
+const axios = require('axios').default
+
+const SERVER = 'https://p2wdb.fullstack.cash/'
+const EXPLORER_URL = 'https://explorer.bitcoin.com/bch/tx/'
+
+let _this
+class Explorer extends React.Component {
+  constructor (props) {
+    super(props)
+    _this = this
+    this.state = {
+      data: [],
+      firstColumns: [
+        { title: 'Created At', data: 'createdAt' },
+        {
+          title: 'Transaction ID',
+          data: 'txid',
+          render: txid => <span id={txid.subString}>{txid.subString}</span>
+        },
+        {
+          title: 'Hash',
+          data: 'hash',
+          render: hash => (
+            <span
+              onclick={() => {
+                console.log('test')
+              }}
+              id={hash.subString}
+            >
+              {hash.subString}
+            </span>
+          )
+        },
+        { title: 'App Id', data: 'appId' }
+      ],
+      entries: []
+    }
+  }
+
+  render () {
+    const { data, firstColumns } = _this.state
+    return (
+      <Content
+        title='P2WDB Explorer'
+        subTitle='Block Explorer for P2WDB'
+        browserTitle='P2WDB Explorer'
+      >
+        <Row>
+          <Col xs={12}>
+            <Box title='Block explorer for P2WDB'>
+              <DataTable
+                columns={firstColumns}
+                data={data}
+                options={{
+                  paging: true,
+                  lengthChange: false,
+                  searching: false,
+                  ordering: true,
+                  info: true,
+                  autoWidth: true
+                }}
+                onPageChange={_this.handleEvents}
+              />
+            </Box>
+          </Col>
+        </Row>
+      </Content>
+    )
+  }
+
+  async componentDidMount () {
+    const entries = await _this.getEntries()
+    _this.generateDataTable(entries)
+  }
+
+  async componentDidUpdate () {
+    // Adds new 'click' events when the view is updated
+    const { entries } = _this.state
+    _this.handleEvents(entries)
+  }
+
+  // REST petition to Get data fron the pw2db
+  async getEntries () {
+    try {
+      const options = {
+        method: 'GET',
+        url: `${SERVER}entry/all/${0}`,
+        data: {}
+      }
+      const result = await axios.request(options)
+      console.log('result', result.data)
+      _this.setState({
+        entries: result.data.data
+      })
+      return result.data.data
+    } catch (err) {
+      console.warn('Error in getEntries() ', err)
+    }
+  }
+
+  generateDataTable (dataArr) {
+    try {
+      const data = []
+      for (let i = 0; i < dataArr.length; i++) {
+        const entry = dataArr[i]
+        const row = {
+          createdAt: entry.createdAt,
+          txid: {
+            subString: _this.simplifyString(entry.key),
+            value: entry.key
+          },
+          hash: {
+            subString: _this.simplifyString(entry.hash),
+            value: entry.hash
+          },
+          appId: entry.appId
+        }
+        data.push(row)
+      }
+      _this.setState({
+        data
+      })
+    } catch (err) {
+      console.warn('Error in generateDataTable() ', err)
+    }
+  }
+
+  simplifyString (txid) {
+    try {
+      const subTxid = txid.slice(0, 4)
+      const subTxid2 = txid.slice(-4)
+      return `${subTxid}...${subTxid2}`
+    } catch (err) {
+      console.warn('Error in cutTxid() ', err)
+    }
+  }
+
+  handleTxId (txid) {
+    try {
+      window.open(`${EXPLORER_URL}${txid}`, '_blank')
+    } catch (err) {
+      console.warn('Error in handleTxId() ', err)
+    }
+  }
+
+  // Gets each element of the transaction id column
+  // to add them the onClick event, its done this way
+  // because that event is not recognized if it gets
+  // added directly to the html tag
+  handleEvents () {
+    try {
+      const { entries } = _this.state
+      for (let i = 0; i < entries.length; i++) {
+        const entry = entries[i]
+        const txid = _this.simplifyString(entry.key)
+        const element = document.getElementById(txid)
+        if (element) {
+          // Adding on click event
+          element.addEventListener('click', () => {
+            _this.handleTxId(entry.key)
+          })
+        }
+      }
+    } catch (err) {
+      console.warn('Error in handleEvents() ', err)
+    }
+  }
+}
+
+export default Explorer