feat(nostr): Created nostr views

src/components/app-body/bch-wallet/wallet-summary.js

@@ -3,7 +3,7 @@
 */
 
 // Global npm libraries
-import React, { useCallback, useEffect, useState } from 'react'
+import React, { useState } from 'react'
 import { Container, Row, Col, Card } from 'react-bootstrap'
 import { FontAwesomeIcon } from '@fortawesome/react-fontawesome'
 import { faWallet, faEye, faEyeSlash } from '@fortawesome/free-solid-svg-icons'
@@ -12,9 +12,6 @@ import { faWallet, faEye, faEyeSlash } from '@fortawesome/free-solid-svg-icons'
 // Local libraries
 import './wallet-summary.css'
 import CopyOnClick from './copy-on-click'
-import { getPublicKey } from 'nostr-tools/pure'
-import { base58_to_binary as base58ToBinary } from 'base58-js'
-import { bytesToHex } from '@noble/hashes/utils' // already an installed dependency
 
 function WalletSummary (props) {
   // Props
@@ -28,10 +25,7 @@ function WalletSummary (props) {
   const [blurredPrivateKey, setBlurredPrivateKey] = useState(true)
   const [blurredNostrPrivKey, setBlurredNostrPrivKey] = useState(true)
 
-  const [nostrKeyPair, setNostrKeyPair] = useState({
+  const [nostrKeyPair] = useState(bchWalletState.nostrKeyPair)
-    privHex: '',
-    pubHex: ''
-  })
 
   // Encapsulate component state into an object that can be passed to child functions
   const walletSummaryData = {
@@ -82,30 +76,6 @@ function WalletSummary (props) {
     }
   }
 
-  const nostrKeyPairFromWIF = useCallback((WIF) => {
-    if (!WIF) return
-
-    // Extract the privaty key from the WIF, using this guide:
-    // https://learnmeabitcoin.com/technical/keys/private-key/wif/
-    const wifBuf = base58ToBinary(WIF)
-    const privBuf = wifBuf.slice(1, 33)
-    // console.log('privBuf: ', privBuf)
-
-    const privHex = bytesToHex(privBuf)
-    console.log('BCH & Nostr private key (HEX format): ', privHex)
-
-    const pubHex = getPublicKey(privBuf)
-    console.log('nostrPubKey: ', pubHex)
-
-    return {
-      privHex,
-      pubHex
-    }
-  }, [])
-
-  useEffect(() => {
-    setNostrKeyPair(nostrKeyPairFromWIF(bchWalletState.privateKey))
-  }, [nostrKeyPairFromWIF, bchWalletState])
   return (
     <>
       <Container>

src/components/app-body/index.js

@@ -23,6 +23,8 @@ import SlpTokens from './slp-tokens'
 import SweepWif from './sweep/index.js'
 import SignMessage from './sign/index.js'
 import ServerSelectView from './configuration/select-server-view'
+import NostrPost from './nostr/nostr-post.js'
+import NostrRead from './nostr/nostr-read.js'
 
 function AppBody (props) {
   // Dependency injection through props
@@ -43,6 +45,9 @@ function AppBody (props) {
         <Route path='/sweep' element={<SweepWif appData={appData} />} />
         <Route path='/sign' element={<SignMessage appData={appData} />} />
         <Route path='/configuration' element={<ServerSelectView appData={appData} />} />
+        <Route path='/nostr-post' element={<NostrPost appData={appData} />} />
+        <Route path='/nostr-read' element={<NostrRead appData={appData} />} />
+
       </Routes>
       {/** Show in all paths except the servers view */}
       {/* {appData.currentPath !== '/servers' && <SelectServerButton linkTo='/servers' appData={appData} />} */}

src/components/app-body/nostr/nostr-post.js

@@ -0,0 +1,158 @@
+/*
+Component for posting nostr information.
+*/
+
+// Global npm libraries
+import React, { useState } from 'react'
+import { Container, Form, Button, Spinner } from 'react-bootstrap'
+import Accordion from 'react-bootstrap/Accordion'
+import { finalizeEvent } from 'nostr-tools/pure'
+import { Relay } from 'nostr-tools/relay'
+import { hexToBytes } from '@noble/hashes/utils' // already an installed dependency
+
+function NostrPost (props) {
+  const [accordionKey, setAccordionKey] = useState('1')
+  const [onFetch, setOnFetch] = useState(false)
+  const { bchWalletState } = props.appData
+  const [formData, setFormData] = useState({
+    name: '',
+    about: ''
+  })
+
+  const [errorMsg, setErrorMsg] = useState('')
+  const [successMsg, setSuccessMsg] = useState('')
+
+  const handleInputChange = (e) => {
+    const { name, value } = e.target
+    setFormData({
+      ...formData,
+      [name]: value
+    })
+
+    setSuccessMsg('')
+    setErrorMsg('')
+  }
+  // Post on nostr network
+  const handleSubmit = async (e) => {
+    e.preventDefault()
+    try {
+      setErrorMsg('')
+      setSuccessMsg('')
+      setOnFetch(true)
+
+      const { nostrKeyPair } = bchWalletState
+
+      // Convert private key to binary
+      const privateKeyBin = hexToBytes(nostrKeyPair.privHex)
+
+      // Relay list
+      const psf = 'wss://nostr-relay.psfoundation.info'
+
+      const formDataString = JSON.stringify(formData)
+
+      // Generate a post.
+      const eventTemplate = {
+        kind: 0,
+        created_at: Math.floor(Date.now() / 1000),
+        tags: [],
+        content: formDataString
+      }
+      console.log(`eventTemplate: ${JSON.stringify(eventTemplate, null, 2)}`)
+
+      // Sign the post
+      const signedEvent = finalizeEvent(eventTemplate, privateKeyBin)
+      console.log('signedEvent: ', signedEvent)
+
+      // Connect to a relay.
+      const relay = await Relay.connect(psf)
+      console.log(`connected to ${relay.url}`)
+
+      // Publish the message to the relay.
+      const result = await relay.publish(signedEvent)
+      console.log('result: ', result)
+
+      // Close the connection to the relay.
+      relay.close()
+      resetForm()
+      setSuccessMsg('Post successfully published!')
+      setOnFetch(false)
+    } catch (error) {
+      console.warn(error)
+      setErrorMsg(error.message || 'An error occurred while posting')
+      setOnFetch(false)
+    }
+  }
+
+  const handleAccordionChange = (key) => {
+    setAccordionKey(key)
+  }
+
+  const resetForm = () => {
+    setFormData({
+      name: '',
+      about: ''
+    })
+  }
+
+  return (
+    <>
+      <Container>
+        <Accordion activeKey={accordionKey} onSelect={handleAccordionChange}>
+          <Accordion.Item eventKey='1'>
+            <Accordion.Header>Post</Accordion.Header>
+            <Accordion.Body>
+              {errorMsg && (
+                <div className='alert alert-danger' role='alert'>
+                  {errorMsg}
+                </div>
+              )}
+              {successMsg && (
+                <div className='alert alert-success' role='alert'>
+                  {successMsg}
+                </div>
+              )}
+              <Form onSubmit={handleSubmit}>
+                <Form.Group className='mb-3'>
+                  <Form.Label>Name</Form.Label>
+                  <Form.Control
+                    type='text'
+                    placeholder='Enter your name'
+                    name='name'
+                    value={formData.name}
+                    onChange={handleInputChange}
+                    required
+                  />
+                </Form.Group>
+
+                <Form.Group className='mb-3'>
+                  <Form.Label>About</Form.Label>
+                  <Form.Control
+                    as='textarea'
+                    rows={3}
+                    placeholder='Tell us about yourself'
+                    name='about'
+                    value={formData.about}
+                    onChange={handleInputChange}
+                    required
+                  />
+                </Form.Group>
+
+                <div className='d-flex justify-content-center'>
+                  {!onFetch && (
+                    <Button variant='primary' type='submit' disabled={onFetch}>
+                      Post
+                    </Button>
+                  )}
+                  {onFetch && <Spinner animation='border' variant='primary' />}
+                </div>
+
+              </Form>
+            </Accordion.Body>
+          </Accordion.Item>
+        </Accordion>
+      </Container>
+    </>
+  )
+}
+
+export default NostrPost

src/components/app-body/nostr/nostr-read.js

@@ -0,0 +1,67 @@
+// Global npm libraries
+import React, { useEffect, useState } from 'react'
+import { Container } from 'react-bootstrap'
+
+import Accordion from 'react-bootstrap/Accordion'
+
+import { RelayPool } from 'nostr'
+
+function NostrRead (props) {
+  const { bchWalletState } = props.appData
+  const [posts, setPosts] = useState([])
+  const [accordionKey, setAccordionKey] = useState('0')
+  const [loaded, setLoaded] = useState(false)
+
+  useEffect(() => {
+    // Get Last post from a author
+    const start = () => {
+      const { nostrKeyPair } = bchWalletState
+
+      const psf = 'wss://nostr-relay.psfoundation.info'
+
+      const pool = RelayPool([psf])
+      pool.on('open', relay => {
+        relay.subscribe('subid', { limit: 10, kinds: [0], authors: [nostrKeyPair.pubHex] })
+      })
+
+      pool.on('eose', relay => {
+        console.log('Closing Relay')
+        relay.close()
+      })
+
+      pool.on('event', (relay, subId, ev) => {
+        console.log('Received event:', ev)
+        setPosts(currentPosts => [...currentPosts, ev])
+      })
+
+      setLoaded(true)
+    }
+
+    if (!loaded) {
+      start()
+    }
+  }, [bchWalletState, loaded])
+
+  const handleAccordionChange = (key) => {
+    setAccordionKey(key)
+  }
+
+  return (
+    <Container>
+      <Accordion activeKey={accordionKey} onSelect={handleAccordionChange}>
+        <Accordion.Item eventKey='0'>
+          <Accordion.Header>Read   (  {posts.length} post found  )</Accordion.Header>
+          <Accordion.Body>
+            {posts.map((post, index) => (
+              <div key={index}>
+                <span>{post.content}</span>
+              </div>
+            ))}
+          </Accordion.Body>
+        </Accordion.Item>
+      </Accordion>
+    </Container>
+  )
+}
+
+export default NostrRead

src/components/nav-menu/index.js

@@ -100,6 +100,20 @@ function NavMenu (props) {
             >
               Configuration
             </NavLink>
+            <NavLink
+              className={currentPath === '/nostr-post' ? 'nav-link-active' : 'nav-link-inactive'}
+              to='/nostr-post'
+              onClick={handleClickEvent}
+            >
+              Nostr Post
+            </NavLink>
+            <NavLink
+              className={currentPath === '/nostr-read' ? 'nav-link-active' : 'nav-link-inactive'}
+              to='/nostr-read'
+              onClick={handleClickEvent}
+            >
+              Nostr Profile
+            </NavLink>
           </Nav>
         </Navbar.Collapse>
       </Navbar>

src/services/async-load.js

@@ -10,6 +10,9 @@ import BchDexLib from 'bch-dex-lib'
 import GistServers from './gist-servers'
 import Nostr from './nostr'
 import P2WDB from 'p2wdb'
+import { base58_to_binary as base58ToBinary } from 'base58-js'
+import { bytesToHex } from '@noble/hashes/utils' // already an installed dependency
+import { getPublicKey } from 'nostr-tools/pure'
 
 class AsyncLoad {
   constructor () {
@@ -59,8 +62,14 @@ class AsyncLoad {
       await wallet.walletInfoPromise
       await wallet.initialize()
       console.log('starting to update wallet state.')
+
+      // Get Nostr key pair from WIF
+      const nostrKeyPair = this.nostrKeyPairFromWIF(wallet.walletInfo.privateKey)
+
+      const walletInfo = wallet.walletInfo
+      walletInfo.nostrKeyPair = nostrKeyPair
       // Update the state of the wallet.
-      appData.updateBchWalletState({ walletObj: wallet.walletInfo, appData })
+      appData.updateBchWalletState({ walletObj: walletInfo, appData })
       console.log('finished updating wallet state.')
       // Save the mnemonic to local storage.
       if (!mnemonic) {
@@ -246,6 +255,27 @@ class AsyncLoad {
       throw error
     }
   }
+
+  // Get Nostr key pair from WIF
+  nostrKeyPairFromWIF (WIF) {
+    if (!WIF) return
+
+    // Extract the privaty key from the WIF, using this guide:
+    // https://learnmeabitcoin.com/technical/keys/private-key/wif/
+    const wifBuf = base58ToBinary(WIF)
+    const privBuf = wifBuf.slice(1, 33)
+    // console.log('privBuf: ', privBuf)
+
+    const privHex = bytesToHex(privBuf)
+    console.log('BCH & Nostr private key (HEX format): ', privHex)
+
+    const pubHex = getPublicKey(privBuf)
+
+    return {
+      privHex,
+      pubHex
+    }
+  }
 }
 
 function sleep (ms) {