A multi-writer discussion board built on nomad.fs. Writers post and comment; the owner invites people via a shareable link or approves access requests. Author names and avatars are resolved from Profile Drives.
Source
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<link rel="icon" type="image/png" sizes="32x32" href="/thumb">
<title>Forum</title>
</head>
<body>
<forum-app></forum-app>
</body>
<script type="module" src="/app.js"></script>
<style>
* { box-sizing: border-box; }
body {
margin: 0;
font-family: system-ui, -apple-system, sans-serif;
font-size: 14px;
color: #222;
background: #f5f5f7;
}
header {
background: #fff;
border-bottom: 1px solid #ddd;
padding: 12px 20px;
display: flex;
align-items: center;
gap: 12px;
}
header h1 {
margin: 0;
font-size: 18px;
font-weight: 600;
flex: 1;
}
header button { cursor: pointer; }
main { max-width: 760px; margin: 0 auto; padding: 20px; }
.post-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 8px; }
.post-item {
background: #fff;
border: 1px solid #ddd;
border-radius: 6px;
padding: 14px 16px;
cursor: pointer;
}
.post-item:hover { border-color: #aaa; }
.post-item h2 { margin: 0 0 4px; font-size: 15px; font-weight: 600; }
.post-meta { color: #666; font-size: 12px; }
.post-meta .category { background: #eef; color: #44c; padding: 2px 6px; border-radius: 3px; margin-right: 6px; }
.thread-header { background: #fff; border: 1px solid #ddd; border-radius: 6px; padding: 16px; margin-bottom: 12px; }
.thread-header h2 { margin: 0 0 6px; font-size: 17px; }
.thread-body { margin: 10px 0; white-space: pre-wrap; line-height: 1.5; }
.comment-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 8px; }
.comment-item {
background: #fff;
border: 1px solid #ddd;
border-radius: 6px;
padding: 12px 16px;
}
.comment-item .comment-body { white-space: pre-wrap; line-height: 1.5; }
.profile-chip {
display: inline-flex;
align-items: center;
gap: 6px;
font-size: 12px;
color: #555;
text-decoration: none;
}
a.profile-chip:hover { color: #2563eb; text-decoration: underline; }
.profile-chip img { width: 18px; height: 18px; border-radius: 50%; object-fit: cover; }
form.post-form, form.comment-form {
background: #fff;
border: 1px solid #ddd;
border-radius: 6px;
padding: 16px;
margin-top: 16px;
display: flex;
flex-direction: column;
gap: 10px;
}
form input, form textarea, form select {
border: 1px solid #ccc;
border-radius: 4px;
padding: 8px 10px;
font-size: 14px;
font-family: inherit;
}
form textarea { min-height: 100px; resize: vertical; }
form button[type=submit] {
align-self: flex-start;
background: #2563eb;
color: #fff;
border: none;
border-radius: 4px;
padding: 8px 16px;
font-size: 14px;
cursor: pointer;
}
form button[type=submit]:hover { background: #1d4ed8; }
.btn { border: 1px solid #ccc; background: #fff; border-radius: 4px; padding: 6px 12px; cursor: pointer; font-size: 13px; }
.btn-primary { background: #2563eb; color: #fff; border-color: #2563eb; }
.btn-danger { background: #dc2626; color: #fff; border-color: #dc2626; }
.notice {
background: #fffbeb;
border: 1px solid #fcd34d;
border-radius: 6px;
padding: 12px 16px;
margin-bottom: 16px;
font-size: 13px;
}
.writers-panel { background: #fff; border: 1px solid #ddd; border-radius: 6px; padding: 16px; margin-top: 16px; }
.writers-panel h3 { margin: 0 0 12px; font-size: 14px; font-weight: 600; }
.request-row { display: flex; align-items: center; gap: 10px; padding: 8px 0; border-bottom: 1px solid #eee; font-size: 13px; }
.request-row:last-child { border-bottom: 0; }
.request-row .spacer { flex: 1; }
.writer-row { display: flex; align-items: center; gap: 8px; padding: 6px 0; font-size: 13px; }
.empty { color: #888; font-style: italic; padding: 20px 0; text-align: center; }
a.back { color: #2563eb; text-decoration: none; font-size: 13px; cursor: pointer; }
a.back:hover { text-decoration: underline; }
.no-profile-hint { font-size: 12px; color: #92400e; background: #fef3c7; border: 1px solid #fcd34d; border-radius: 4px; padding: 3px 8px; }
.no-profile-hint a { color: inherit; font-weight: 600; }
</style>
</html>
{
"title": "My Forum",
"type": "walled.garden/forum",
"fallback": "/index.html",
"collaborative": true
}
// Forum template — uses nomad.fs for multi-writer collaboration
// Each Writer can create posts and comments.
// The drive owner manages who can write via invite/approve flows.
// The drive this page lives in, from nomad.page — host-provided and authoritative on desktop AND
// mobile (never parse `location` yourself; it's unreliable in the mobile WebView).
const BASE = nomad.page.origin
const drive = nomad.fs.drive(BASE)
// ── State ──────────────────────────────────────────────────────────────────────
let state = {
view: 'list', // 'list' | 'thread' | 'new-post' | 'writers'
posts: [],
activePost: null,
comments: [],
writers: [],
requests: [],
info: null,
isWriter: false,
myProfileUrl: null,
myWriterKey: null,
loading: true,
}
// ── Boot ───────────────────────────────────────────────────────────────────────
customElements.define('forum-app', class extends HTMLElement {
async connectedCallback() {
try {
await boot(this)
} catch (err) {
this.innerHTML = `<p style="color:red;padding:20px;font-family:monospace">Forum error: ${err.message}</p>`
console.error('[forum-app] boot error:', err)
}
}
})
async function boot(el) {
state.info = await drive.getInfo()
state.isWriter = state.info.writable
// Load the user's profile from address book
try {
const ab = await nomad.fs.readFile('hyper://private/address-book.json').then(JSON.parse)
console.log('Address book', ab);
state.myProfileUrl = ab?.profiles?.[0]?.key ? `hyper://${ab.profiles[0].key}/` : null
} catch(e) {
console.log('No address book found', e);
}
if (state.isWriter) {
// writerKey is the local autobase writer key — exposed via listWriters
const writers = await drive.listWriters()
state.writers = writers
state.requests = await drive.listRequests()
// Find our writer key from the list that has no profileUrl but matches our profile
const myWriter = writers.find(w => w.profileUrl === state.myProfileUrl) || writers[0]
state.myWriterKey = myWriter?.writerKey
// Live-refresh pending requests as they arrive over the network (no polling)
drive.watchRequests(async () => {
state.requests = await drive.listRequests()
await render(el)
})
}
state.loading = false
await render(el)
}
// ── Router ─────────────────────────────────────────────────────────────────────
function navigate(view, extra = {}) {
Object.assign(state, { view, ...extra })
render(document.querySelector('forum-app')).catch(err => console.error('[forum-app] render error:', err))
}
// ── Render ─────────────────────────────────────────────────────────────────────
async function render(el) {
el.innerHTML = ''
if (state.loading) {
el.append(h('p', { style: 'padding:40px;text-align:center' }, 'Loading…'))
return
}
const header = renderHeader()
el.append(header)
const main = h('main')
el.append(main)
if (state.view === 'list') await renderList(main)
else if (state.view === 'thread') await renderThread(main)
else if (state.view === 'new-post') renderNewPost(main)
else if (state.view === 'writers') await renderWriters(main)
}
function renderHeader() {
const hdr = h('header')
const title = h('h1', {}, state.info?.title || 'Forum')
hdr.append(title)
if (state.view !== 'list') {
hdr.append(h('a', { class: 'back', click: () => navigate('list') }, '← Back'))
}
if (state.isWriter) {
if (state.view === 'list') {
hdr.append(h('button', { class: 'btn btn-primary', click: () => navigate('new-post') }, '+ New Post'))
}
hdr.append(h('button', { class: 'btn', click: () => openWriters() }, 'Writers' + (state.requests.length ? ` (${state.requests.length})` : '')))
if (!state.myProfileUrl) {
hdr.append(h('span', { class: 'no-profile-hint' }, '⚠ ', h('a', { href: '#', click: (e) => { e.preventDefault(); showProfileHelp() } }, 'Set up your profile')))
}
}
return hdr
}
async function renderList(main) {
let posts = []
try {
const entries = await drive.list('/posts/')
posts = await Promise.all(
entries.map(async e => {
const raw = await drive.get(e.key)
try {
return { ...JSON.parse(raw), _path: e.key }
} catch { return null }
})
)
posts = posts.filter(Boolean).sort((a, b) => b.createdAt > a.createdAt ? 1 : -1)
} catch {}
state.posts = posts
if (!state.isWriter) {
main.append(h('div', { class: 'notice' },
'You are not a writer. ',
h('button', { class: 'btn', click: requestAccess }, 'Request write access')
))
}
if (posts.length === 0) {
main.append(h('p', { class: 'empty' }, 'No posts yet.'))
return
}
const ul = h('ul', { class: 'post-list' })
for (const post of posts) {
const li = h('li', { class: 'post-item', click: () => openThread(post) })
if (post.category) li.append(h('span', { class: 'post-meta' }, h('span', { class: 'category' }, post.category)))
li.append(h('h2', {}, post.title))
const meta = h('span', { class: 'post-meta' })
meta.append(await resolveAuthor(post.author?.writerKey, post.author?.url))
meta.append(` · ${formatDate(post.createdAt)}`)
li.append(meta)
ul.append(li)
}
main.append(ul)
}
async function renderThread(main) {
const post = state.activePost
if (!post) { navigate('list'); return }
const hdr = h('div', { class: 'thread-header' })
if (post.category) hdr.append(h('span', { class: 'post-meta' }, h('span', { class: 'category' }, post.category)))
hdr.append(h('h2', {}, post.title))
hdr.append(h('div', { class: 'thread-body' }, post.body))
const authorEl = h('span', { class: 'post-meta' })
authorEl.append(await resolveAuthor(post.author?.writerKey, post.author?.url))
authorEl.append(` · ${formatDate(post.createdAt)}`)
hdr.append(authorEl)
main.append(hdr)
// Comments
let comments = []
const postSlug = post._path.replace('/posts/', '').replace('.json', '')
try {
const entries = await drive.list(`/comments/${postSlug}/`)
comments = await Promise.all(
entries.map(async e => {
const raw = await drive.get(e.key)
try { return JSON.parse(raw) } catch { return null }
})
)
comments = comments.filter(Boolean).sort((a, b) => a.createdAt > b.createdAt ? 1 : -1)
} catch {}
state.comments = comments
if (comments.length > 0) {
const ul = h('ul', { class: 'comment-list' })
for (const c of comments) {
const li = h('li', { class: 'comment-item' })
li.append(h('div', { class: 'comment-body' }, c.body))
const meta = h('span', { class: 'post-meta' })
meta.append(await resolveAuthor(c.author?.writerKey, c.author?.url))
meta.append(` · ${formatDate(c.createdAt)}`)
li.append(meta)
ul.append(li)
}
main.append(ul)
} else {
main.append(h('p', { class: 'empty' }, 'No replies yet.'))
}
if (state.isWriter) {
const form = h('form', { class: 'comment-form', submit: e => submitComment(e, postSlug) })
form.append(h('strong', {}, 'Add a reply'))
form.append(h('textarea', { name: 'body', placeholder: 'Write your reply…', required: true }))
form.append(h('button', { type: 'submit' }, 'Post reply'))
main.append(form)
}
}
function renderNewPost(main) {
const form = h('form', { class: 'post-form', submit: submitPost })
form.append(h('strong', {}, 'New post'))
form.append(h('input', { name: 'title', placeholder: 'Title', required: true }))
form.append(h('input', { name: 'category', placeholder: 'Category (optional)' }))
form.append(h('textarea', { name: 'body', placeholder: 'Write your post…', required: true }))
form.append(h('button', { type: 'submit' }, 'Post'))
main.append(form)
}
async function renderWriters(main) {
const writers = await drive.listWriters()
const requests = await drive.listRequests()
state.writers = writers
state.requests = requests
const panel = h('div', { class: 'writers-panel' })
// Invite section
panel.append(h('h3', {}, 'Invite a writer'))
const inviteBtn = h('button', { class: 'btn btn-primary', click: createInvite }, 'Create invite link')
panel.append(inviteBtn)
panel.append(h('p', { style: 'font-size:12px;color:#666;margin:6px 0 16px' },
'Anyone with the invite link can request write access. You will need to approve them.'
))
// Pending requests
panel.append(h('h3', {}, `Pending requests (${requests.length})`))
if (requests.length === 0) {
panel.append(h('p', { class: 'empty', style: 'padding:8px 0' }, 'No pending requests.'))
} else {
for (const req of requests) {
const row = h('div', { class: 'request-row' })
const profileEl = await resolveAuthor(req.writerKey, req.profileUrl)
row.append(profileEl)
row.append(h('span', { class: 'spacer' }))
row.append(h('button', { class: 'btn btn-primary', click: () => approveRequest(req.writerKey, req.profileUrl) }, 'Approve'))
row.append(h('button', { class: 'btn btn-danger', click: () => denyRequest(req.writerKey) }, 'Deny'))
panel.append(row)
}
}
// Current writers
panel.append(h('h3', { style: 'margin-top:16px' }, `Writers (${writers.length})`))
if (writers.length === 0) {
panel.append(h('p', { class: 'empty', style: 'padding:8px 0' }, 'No writers yet.'))
} else {
for (const w of writers) {
const row = h('div', { class: 'writer-row' })
const profileEl = await resolveAuthor(w.writerKey, w.profileUrl)
row.append(profileEl)
if (w.writerKey !== state.myWriterKey) {
row.append(h('button', { class: 'btn btn-danger', style: 'margin-left:auto', click: () => removeWriter(w.writerKey) }, 'Remove'))
}
panel.append(row)
}
}
main.append(panel)
}
// ── Actions ────────────────────────────────────────────────────────────────────
async function openThread(post) {
state.activePost = post
navigate('thread')
}
async function openWriters() {
Object.assign(state, { view: 'writers' })
await render(document.querySelector('forum-app'))
}
async function submitPost(e) {
e.preventDefault()
const fd = new FormData(e.target)
const now = new Date().toISOString()
const post = {
type: 'walled.garden/post',
title: fd.get('title').trim(),
body: fd.get('body').trim(),
category: fd.get('category').trim() || undefined,
createdAt: now,
author: { url: state.myProfileUrl, writerKey: state.myWriterKey }
}
const valid = nomad.schemas.validate('walled.garden/post', post)
if (!valid.success) { alert('Validation error: ' + valid.error); return }
const slug = `${Date.now()}-${post.title.toLowerCase().replace(/[^a-z0-9]+/g, '-').slice(0, 40)}`
await drive.put(`/posts/${slug}.json`, JSON.stringify(post, null, 2))
Object.assign(state, { view: 'list' })
await render(document.querySelector('forum-app'))
}
async function submitComment(e, postSlug) {
e.preventDefault()
const fd = new FormData(e.target)
const now = new Date().toISOString()
const comment = {
type: 'walled.garden/comment',
topic: `${BASE}posts/${postSlug}.json`,
body: fd.get('body').trim(),
createdAt: now,
author: { url: state.myProfileUrl, writerKey: state.myWriterKey }
}
const slug = Date.now().toString()
await drive.put(`/comments/${postSlug}/${slug}.json`, JSON.stringify(comment, null, 2))
Object.assign(state, { view: 'thread', activePost: state.activePost })
await render(document.querySelector('forum-app'))
}
function showProfileHelp() {
alert(
'To set up your profile:\n\n' +
'1. Open the Nomad explorer and create a new drive.\n' +
'2. Set the drive title to your name.\n' +
'3. Edit /index.json and add: "type": "walled.garden/person"\n' +
'4. Open hyper://private/address-book.json and add:\n' +
' { "profiles": [{ "key": "<your-drive-key>" }] }\n\n' +
'After that, reload this page — your name will appear on your posts.'
)
}
async function requestAccess() {
const profileUrl = state.myProfileUrl
const result = await nomad.fs.requestAccess(BASE, { profileUrl })
alert(`Access requested. Your writer key: ${result.writerKey}\n\nThe forum owner must approve your request.`)
}
async function createInvite() {
const inviteUrl = await drive.createInvite({ multiUse: true })
await navigator.clipboard.writeText(inviteUrl)
alert('Invite link copied to clipboard!\n\n' + inviteUrl)
}
async function approveRequest(writerKey, profileUrl) {
await drive.approveRequest(writerKey, { profileUrl })
alert('Writer approved.')
await openWriters()
}
async function denyRequest(writerKey) {
if (!confirm('Deny this request?')) return
await drive.denyRequest(writerKey)
await openWriters()
}
async function removeWriter(writerKey) {
if (!confirm('Remove this writer?')) return
await drive.removeWriter(writerKey)
await openWriters()
}
// ── Helpers ────────────────────────────────────────────────────────────────────
const profileCache = {}
async function resolveAuthor(writerKey, profileUrl) {
const cacheKey = writerKey || profileUrl || 'unknown'
if (!profileCache[cacheKey]) {
profileCache[cacheKey] = _fetchProfile(profileUrl)
}
const profile = await profileCache[cacheKey]
const chip = profileUrl
? h('a', { class: 'profile-chip', href: profileUrl, click: (e) => { e.stopPropagation(); window.open(profileUrl) } })
: h('span', { class: 'profile-chip' })
if (profile?.thumb) {
const thumbSrc = profile.thumb.startsWith('/')
? profileUrl.replace(/\/$/, '') + profile.thumb
: profileUrl + profile.thumb
chip.append(h('img', { src: thumbSrc, alt: '' }))
}
const label = profile?.title || (writerKey ? writerKey.slice(0, 8) + '…' : 'Unknown')
chip.append(label)
return chip
}
async function _fetchProfile(profileUrl) {
if (!profileUrl) return null
try {
return await nomad.fs.drive(profileUrl).getInfo()
} catch { return null }
}
function formatDate(iso) {
if (!iso) return ''
const d = new Date(iso)
return d.toLocaleDateString(undefined, { month: 'short', day: 'numeric', year: 'numeric' })
}
function h(tag, attrs = {}, ...children) {
const el = document.createElement(tag)
for (const [k, v] of Object.entries(attrs)) {
if (typeof v === 'function') el.addEventListener(k, v)
else el.setAttribute(k, v)
}
for (const child of children) {
if (child instanceof Node) el.append(child)
else if (child != null) el.append(String(child))
}
return el
}
MIT License
Copyright (c) 2020 Blue Link Labs
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
