feat(tagged posts): Nostr posts made with this app are tagged for easy tracking in a global feed

feat(nostr): Created UI for Kind 1 Nostr posts

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({
-    privHex: '',
-    pubHex: ''
-  })
+  const [nostrKeyPair] = useState(bchWalletState.nostrKeyPair)
 
   // 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>
@@ -195,28 +165,28 @@ function WalletSummary (props) {
                   </Row>
                   <Row style={{ padding: '25px', backgroundColor: '#eee' }}>
                     <Col xs={10} sm={10} lg={8} style={{ padding: '10px' }}>
-                      <b>Nostr Priv Key:</b> <span className={blurredNostrPrivKey ? 'blurred' : null}>{nostrKeyPair.privHex}</span>
+                      <b>Nostr Priv Key:</b> <span className={blurredNostrPrivKey ? 'blurred' : null}>{nostrKeyPair.nsec}</span>
                     </Col>
                     <Col xs={6} sm={1} lg={2} style={{ textAlign: 'center' }}>
                       <FontAwesomeIcon
                         style={{ cursor: 'pointer' }}
                         icon={eyeIcon.privateKey}
                         size='lg'
-                        onClick={() => toggleNostrPrivateKeyBlur(nostrKeyPair.privHex)}
+                        onClick={() => toggleNostrPrivateKeyBlur(nostrKeyPair.nsec)}
                       />
                     </Col>
                     <Col xs={6} sm={1} lg={2} style={{ textAlign: 'center' }}>
-                      <CopyOnClick appData={appData} value={nostrKeyPair.privHex} />
+                      <CopyOnClick appData={appData} value={nostrKeyPair.nsec} />
                     </Col>
                   </Row>
                   <Row style={{ padding: '25px', backgroundColor: '#eee' }}>
                     <Col xs={10} sm={10} lg={8} style={{ padding: '10px' }}>
-                      <b>Nostr Pub Key:</b> {nostrKeyPair.pubHex}
+                      <b>Nostr Pub Key:</b> {nostrKeyPair.npub}
                     </Col>
                     <Col xs={6} sm={1} lg={2} style={{ textAlign: 'center' }} />
 
                     <Col xs={6} sm={1} lg={2} style={{ textAlign: 'center' }}>
-                      <CopyOnClick appData={appData} value={nostrKeyPair.pubHex} />
+                      <CopyOnClick appData={appData} value={nostrKeyPair.npub} />
                     </Col>
                   </Row>
                 </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/index.js'
+import NostrRead from './nostr/nostr-read/index.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/index.js.js

@@ -0,0 +1,31 @@
+/*
+Component for posting nostr information.
+*/
+
+// Global npm libraries
+import React from 'react'
+import { Container } from 'react-bootstrap'
+import ProfilePost from './profile-post'
+import PublicPost from './public-post'
+
+function NostrPost (props) {
+  return (
+    <>
+      <Container>
+        <h2 style={{
+          textAlign: 'center',
+          margin: '20px 0',
+          padding: '10px',
+          borderBottom: '2px solid #ccc'
+        }}
+        >
+          Nostr Post
+        </h2>
+        <ProfilePost {...props} />
+        <PublicPost {...props} />
+      </Container>
+    </>
+  )
+}
+
+export default NostrPost

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

@@ -0,0 +1,158 @@
+/*
+Component for posting nostr information on kind 0.
+*/
+
+// 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 ProfilePost (props) {
+  const [accordionKey, setAccordionKey] = useState(null)
+  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 className='mt-4'>
+        <Accordion activeKey={accordionKey} onSelect={handleAccordionChange}>
+          <Accordion.Item eventKey='0'>
+            <Accordion.Header>Profile 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 ProfilePost

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

@@ -0,0 +1,142 @@
+/*
+Component for posting nostr information on kind 1.
+*/
+
+// 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 PublicPost (props) {
+  const [accordionKey, setAccordionKey] = useState(null)
+  const [onFetch, setOnFetch] = useState(false)
+  const { bchWalletState } = props.appData
+  const [formData, setFormData] = useState({
+    content: ''
+  })
+
+  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'
+
+      // Generate a post.
+      const eventTemplate = {
+        kind: 1,
+        created_at: Math.floor(Date.now() / 1000),
+        tags: [['t', 'slpdex-socialmedia']],
+        content: formData.content
+      }
+      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({
+      content: ''
+    })
+  }
+
+  return (
+    <>
+      <Container className='mt-4'>
+        <Accordion activeKey={accordionKey} onSelect={handleAccordionChange}>
+          <Accordion.Item eventKey='0'>
+            <Accordion.Header>Public 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>Message</Form.Label>
+                  <Form.Control
+                    as='textarea'
+                    rows={7}
+                    placeholder="What's happening?"
+                    name='content'
+                    value={formData.content}
+                    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 PublicPost

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

@@ -0,0 +1,23 @@
+/*
+Component for read nostr information.
+*/
+
+// Global npm libraries
+import React, { useState } from 'react'
+import { Container } from 'react-bootstrap'
+import ProfileRead from './profile-read.js'
+import PublicRead from './public-read.js'
+
+function NostrRead (props) {
+  const [profile, setProfile] = useState(false)
+  return (
+    <>
+      <Container>
+        <ProfileRead {...props} setProfile={setProfile} />
+        <PublicRead {...props} profile={profile} />
+      </Container>
+    </>
+  )
+}
+
+export default NostrRead

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

@@ -0,0 +1,102 @@
+/**
+ * Component for read nostr information kind 0
+ */
+// Global npm libraries
+import React, { useEffect, useState } from 'react'
+import { Container, Button } from 'react-bootstrap'
+import CopyOnClick from '../../bch-wallet/copy-on-click.js'
+import { FontAwesomeIcon } from '@fortawesome/react-fontawesome'
+import { faUser } from '@fortawesome/free-solid-svg-icons'
+
+import { RelayPool } from 'nostr'
+
+function ProfileRead (props) {
+  const { bchWalletState } = props.appData
+  const { setProfile } = props
+  const [post, setPost] = useState({})
+  const [loaded, setLoaded] = useState(false)
+
+  useEffect(() => {
+    const start = () => {
+      const { nostrKeyPair } = bchWalletState
+      const psf = 'wss://nostr-relay.psfoundation.info'
+
+      const pool = RelayPool([psf])
+      pool.on('open', relay => {
+        relay.subscribe('subid', { limit: 5, 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)
+        const profile = JSON.parse(ev.content)
+        setPost(profile)
+        setProfile(profile)
+      })
+
+      setLoaded(true)
+    }
+
+    if (!loaded) {
+      start()
+    }
+  }, [bchWalletState, loaded, setProfile])
+
+  return (
+    <Container>
+      <div className='d-flex flex-column flex-md-row align-items-center gap-4 mb-5 p-3 p-md-5 bg-light rounded-4 shadow-sm'>
+        <div style={{ width: '100px', height: '100px' }} className='mb-3 mb-md-0'>
+          <div
+            className='rounded-circle bg-gradient shadow d-flex align-items-center justify-content-center'
+            style={{
+              width: '100%',
+              height: '100%',
+              background: 'linear-gradient(45deg, #6c757d, #495057)'
+            }}
+          >
+            <FontAwesomeIcon icon={faUser} size='3x' color='#7c7c7d' />
+          </div>
+        </div>
+        <div className='flex-grow-1 text-center text-md-start mb-3 mb-md-0 d-flex flex-column align-items-center align-items-md-start'>
+          <h3 className='mb-2 fw-bold'>{post.name}</h3>
+          <div className='text-muted small mb-3 d-flex align-items-center flex-column flex-md-row'>
+            <span className='text-truncate me-2 mb-2 mb-md-0'>
+              <span className='d-md-none'>
+                {`${bchWalletState.nostrKeyPair.npub.slice(0, 8)}...${bchWalletState.nostrKeyPair.npub.slice(-5)}`}
+              </span>
+              <span className='d-none d-md-inline'>
+                {bchWalletState.nostrKeyPair.npub}
+              </span>
+            </span>
+            <CopyOnClick walletProp='npub' appData={props.appData} value={bchWalletState.nostrKeyPair.npub} />
+          </div>
+          <div className='fs-6 text-secondary'>{post.about}</div>
+        </div>
+        <div className='d-flex gap-2 align-items-center flex-wrap justify-content-center'>
+          <Button
+            variant='outline-danger'
+            className='px-3 px-md-4 py-2 rounded-pill fw-semibold'
+            style={{ minWidth: '120px' }}
+          >
+            <i className='bi bi-person-plus me-2' />
+            Follow
+          </Button>
+          <Button
+            variant='primary'
+            className='px-3 px-md-4 py-2 rounded-pill fw-semibold'
+            style={{ minWidth: '120px' }}
+          >
+            <i className='bi bi-chat-dots me-2' />
+            Message
+          </Button>
+        </div>
+      </div>
+    </Container>
+  )
+}
+
+export default ProfileRead

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

@@ -0,0 +1,93 @@
+/**
+ *  Component for read nostr information kind 1
+ */
+// Global npm libraries
+import React, { useEffect, useState } from 'react'
+import { Container, Card } from 'react-bootstrap'
+import { FontAwesomeIcon } from '@fortawesome/react-fontawesome'
+import { faUser } from '@fortawesome/free-solid-svg-icons'
+
+import { RelayPool } from 'nostr'
+
+function PublicRead (props) {
+  const { bchWalletState } = props.appData
+  const [posts, setPosts] = useState([])
+  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: 5, kinds: [1], 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])
+
+  return (
+    <Container className='mt-4'>
+      <div>
+        {posts.map((post, index) => (
+          <Card key={index} className='mb-4 bg-light rounded-4 shadow-sm border-0'>
+            <Card.Body className='p-3'>
+              <div className='d-flex align-items-center gap-3 mb-3'>
+                <div
+                  className='rounded-circle bg-gradient shadow d-flex align-items-center justify-content-center'
+                  style={{
+                    width: '48px',
+                    height: '48px',
+                    background: 'linear-gradient(45deg, #6c757d, #495057)'
+                  }}
+                >
+                  <FontAwesomeIcon icon={faUser} size='1x' color='#7c7c7d' />
+                </div>
+                <div className='flex-grow-1'>
+                  <div className='fw-bold mb-1'>{props.profile?.name}</div>
+                  <small className='text-muted'>
+                    {`${bchWalletState.nostrKeyPair.npub.slice(0, 8)}...${bchWalletState.nostrKeyPair.npub.slice(-5)}`}
+                  </small>
+                </div>
+                <small className='text-muted'>
+                  {new Date(post.created_at * 1000).toLocaleString()}
+                </small>
+              </div>
+              <div className='mb-4'>
+                <div className='fs-5 ms-5 text-dark' style={{ lineHeight: '1.3' }}>
+                  {post.content}
+                </div>
+              </div>
+            </Card.Body>
+          </Card>
+        ))}
+        {!posts.length && loaded && (
+          <div className='text-center text-muted py-5 bg-light rounded-4 shadow-sm'>
+            <i className='bi bi-inbox-fill fs-1 mb-3 d-block opacity-50' />
+            <div>No posts found</div>
+          </div>
+        )}
+      </div>
+    </Container>
+  )
+}
+
+export default PublicRead

src/components/app-body/sweep/index.js

@@ -41,7 +41,10 @@ const SweepWif = (props) => {
 
   // Handle sweep function
   const handleSweep = async (e) => {
-    e.preventDefault()
+    if (e) {
+      e.preventDefault()
+    }
+
     try {
       console.log(`Sweeping this WIF: ${wifToSweep}`)
 

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/config/index.js

@@ -14,7 +14,10 @@ const config = {
   ghRepo: 'https://github.com/Permissionless-Software-Foundation/bch-dex-taker-v2',
   radicleUrl: 'https://app.radicle.network/seeds/maple.radicle.garden/rad:git:hnrkd5cjwwb5tzx37hq9uqm5ubon7ee468xcy/remotes/hyyycncbn9qzqmobnhjq9rry6t4mbjiadzjoyhaknzxjcz3cxkpfpc',
 
-  dexServer: 'https://dex-api.fullstack.cash'
+  dexServer: 'https://dex-api.fullstack.cash',
+
+  nostrTopic: 'bch-dex-test-topic-02',
+  nostrRelay: 'wss://nostr-relay.psfoundation.info'
 
 }
 

src/services/async-load.js

@@ -10,6 +10,10 @@ 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'
+import * as nip19 from 'nostr-tools/nip19'
 
 class AsyncLoad {
   constructor () {
@@ -59,8 +63,14 @@ 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)
+      console.log('nostrKeyPair: ', nostrKeyPair)
+      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 +256,33 @@ 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)
+    // Convert the private key to a hex string
+    const privHex = bytesToHex(privBuf)
+    // Convert the private key to a Nostr NSEC key
+    const nsec = nip19.nsecEncode(privBuf)
+
+    // Get the public key hex string from the private key
+    const pubHex = getPublicKey(privBuf)
+    // Convert the public key to a Nostr NPUB key
+    const npub = nip19.npubEncode(pubHex)
+
+    return {
+      privHex,
+      pubHex,
+      nsec,
+      npub
+    }
+  }
 }
 
 function sleep (ms) {

src/services/nostr.js

@@ -13,6 +13,7 @@ import { finalizeEvent } from 'nostr-tools/pure'
 import { Relay } from 'nostr-tools/relay'
 import BchNostr from 'bch-nostr'
 import * as nip19 from 'nostr-tools/nip19'
+import config from '../config/index.js'
 
 class NostrBrowser {
   constructor (localConfig = {}) {
@@ -23,8 +24,8 @@ class NostrBrowser {
     this.bchWallet = localConfig.bchWallet
 
     this.bchNostr = new BchNostr({
-      relayWs: 'wss://nostr-relay.psfoundation.info',
-      topic: 'bch-dex-test-topic-01'
+      relayWs: config.nostrRelay,
+      topic: config.nostrTopic
     })
   }
 
@@ -68,11 +69,11 @@ class NostrBrowser {
       //   tags: [['t', 'bch-dex-test-topic-01']]
       // }
 
-      const relayWs = 'wss://nostr-relay.psfoundation.info'
+      const relayWs = config.nostrRelay
       const eventTemplate = {
         kind: 867,
         created_at: Math.floor(Date.now() / 1000),
-        tags: [['t', 'bch-dex-test-topic-01']],
+        tags: [['t', config.nostrTopic]],
         content: msg
       }