Node flags (cmd/node/main.go):
--max-cpu / --max-ram-mb — Go runtime caps (GOMAXPROCS / GOMEMLIMIT)
--feed-disk-limit-mb — hard 507 refusal for new post bodies over quota
--chain-disk-limit-mb — advisory watcher (can't reject blocks without
breaking consensus; logs WARN every minute)
Client — Saved Messages (self-chat):
- Auto-created on sign-in, pinned top of chat list, blue bookmark avatar
- Send short-circuits the relay (no encrypt, no fee, no mailbox hop)
- Empty state rendered outside inverted FlatList — fixes the mirrored
"say hi…" on Android RTL-aware layout builds
- PostCard shows "You" for own posts instead of the self-contact alias
Client — user walls:
- New route /(app)/feed/author/[pub] with infinite-scroll via
`created_at` cursor and pull-to-refresh
- Profile screen gains "View posts" button (universal) next to
"Open chat" (contact-only)
Feed pipeline:
- Bump client JPEG quality 0.5 → 0.75 to match server scrubber (Q=75),
so a 60 KiB compose doesn't balloon past 256 KiB after server re-encode
- ErrPostTooLarge now wraps with the actual size vs cap, errors.Is
preserved in the HTTP layer
- FeedMailbox quota + DiskUsage surface — supports new CLI flag
README:
- Step-by-step "first node / joiner" section on the landing page,
full flag tables incl. the new resource-cap group, minimal
checklists for open/private/low-end deployments
1. GO_BACK warning & stuck screens
When a deep link or direct push put the user on /feed/[id],
/profile/[address], /compose, or /settings without any prior stack
entry, tapping the header chevron emitted:
"ERROR The action 'GO_BACK' was not handled by any navigator"
and did nothing — user was stuck.
New helper lib/utils.safeBack(fallback = '/(app)/chats') wraps
router.canGoBack() — when there's history it pops; otherwise it
replace-navigates to a sensible fallback (chats list by default,
'/' for auth screens so we land back at the onboarding).
Applied to every header chevron and back-from-detail flow:
app/(app)/chats/[id], app/(app)/compose, app/(app)/feed/[id]
(header + onDeleted), app/(app)/feed/tag/[tag],
app/(app)/profile/[address], app/(app)/new-contact (header + OK
button on request-sent alert), app/(app)/settings,
app/(auth)/create, app/(auth)/import.
2. Prevent self-contact-request
new-contact.tsx now compares the resolved address against
keyFile.pub_key at two points:
- right after resolveUsername + getIdentity in search() — before
the profile card even renders, so the user doesn't see the
"Send request" CTA for themselves.
- inside sendRequest() as a belt-and-braces guard in case the
check was somehow bypassed.
The search path shows an inline error ("That's you. You can't
send a contact request to yourself."); sendRequest falls back to
an Alert with the same meaning. Both compare case-insensitively
against the pubkey hex so mixed-case pastes work.
Technically the server would still accept a self-request (the
chain stores it under contact_in:<self>:<self>), but it's a dead-
end UX-wise — the user can't chat with themselves — so the client
blocks it preemptively instead of letting users pay the fee for
nothing.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Two dev-only seed modules removed now that the app talks to a real
backend:
- lib/devSeed.ts — fake 15+ contacts with mock chat histories,
mounted via useDevSeed() in (app)/_layout.tsx on empty store.
Was useful during client-first development; now it fights real
contact sync and confuses operators bringing up fresh nodes
("why do I see NBA scores and a dchain_updates channel in my
chat list?").
- lib/devSeedFeed.ts — 12 synthetic feed posts surfaced when the
real API returned empty. Same reasoning: operator imports genesis
key on a fresh node, opens Feed, sees 12 mock posts that aren't on
their chain. "Test data" that looks real is worse than an honest
empty state.
Feed screen now shows its proper empty state ("Пока нет
рекомендаций", etc.) when the API returns zero items OR on network
error. Chat screen starts empty until real contacts + messages
arrive via WS / storage cache.
Also cleaned a stale comment in chats/[id].tsx that referenced
devSeed.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Server pagination
- blockchain.PostsByAuthor signature extended with beforeTs int64;
passing 0 keeps the previous "everything, newest first" behaviour,
non-zero skips posts with CreatedAt >= beforeTs so clients can
paginate older results.
- node.FeedConfig.PostsByAuthor callback type updated; the two
/feed endpoints that use it (timeline + author) now accept
`?before=<unix_seconds>` and forward it through. /feed/author
limit default dropped from 50 to 30 to match the client's page
size.
- node/api_common.go: new queryInt64 helper for parsing the cursor
param safely (matches the queryInt pattern already used).
Client infinite scroll (Feed tab)
- lib/feed.ts: fetchTimeline / fetchAuthorPosts accept
`{limit?, before?}` options. Old signatures still work for other
callers (fetchForYou / fetchTrending / fetchHashtag) — those are
ranked feeds that don't have a stable cursor so they stay
single-shot.
- feed/index.tsx: tracks loadingMore / exhausted state. onEndReached
(threshold 0.6) fires loadMore() which fetches the next 20 posts
using the oldest currently-loaded post's created_at as `before`.
Deduplicates on post_id before appending. Stops when the server
returns < PAGE_SIZE items. ListFooterComponent shows a small
spinner during paginated fetches.
- FlatList lazy-render tuning on all feed lists (index + hashtag):
initialNumToRender:10, maxToRenderPerBatch:8, windowSize:7,
removeClippedSubviews — first paint stays quick even with 100+
posts loaded.
Chat lazy render
- chats/[id].tsx FlatList: initialNumToRender:25 (~1.5 screens),
maxToRenderPerBatch:12, windowSize:10, removeClippedSubviews.
Keeps initial chat open snappy on conversations with thousands
of messages; RN re-renders a small window around the viewport
and drops the rest.
Tests
- chain_test.go updated for new PostsByAuthor signature.
- All 7 Go packages green.
- tsc --noEmit clean.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Ships the client side of the v2.0.0 feed feature. Folds client-app/
into the monorepo (was previously .gitignored as "tracked separately"
but no separate repo ever existed — for v2.0.0 the client is
first-class).
Feed screens
app/(app)/feed.tsx — Feed tab
- Three-way tab strip: Подписки / Для вас / В тренде backed by
/feed/timeline, /feed/foryou, /feed/trending respectively
- Default landing tab is "Для вас" — surfaces discovery without
requiring the user to follow anyone first
- FlatList with pull-to-refresh + viewability-driven view counter
bump (posts visible ≥ 60% for ≥ 1s trigger POST /feed/post/…/view)
- Floating blue compose button → /compose
- Per-post liked_by_me fetched in batches of 6 after list load
app/(app)/compose.tsx — post composer modal
- Fullscreen, Twitter-like header (✕ left, Опубликовать right)
- Auto-focused multiline TextInput, 4000 char cap
- Hashtag preview chips that auto-update as you type
- expo-image-picker + expo-image-manipulator pipeline: resize to
1080px max-dim, JPEG Q=50 (client-side first-pass compression
before the mandatory server-side scrub)
- Live fee estimate + balance guard with a confirmation modal
("Опубликовать пост? Цена: 0.00X T · Размер: N KB")
- Exif: false passed to ImagePicker as an extra privacy layer
app/(app)/feed/[id].tsx — post detail
- Full PostCard rendering + detailed info panel (views, likes,
size, fee, hosting relay, hashtags as tappable chips)
- Triggers bumpView on mount
- 410 (on-chain soft-delete) routes back to the feed
app/(app)/feed/tag/[tag].tsx — hashtag feed
app/(app)/profile/[address].tsx — rebuilt
- Twitter-ish profile: avatar, name, address short-form, post count
- Posts | Инфо tab strip
- Follow / Unfollow button for non-self profiles (optimistic UI)
- Edit button on self profile → settings
- Secondary actions (chat, copy address) when viewing a known contact
Supporting library
lib/feed.ts — HTTP wrappers + tx builders for every /feed/* endpoint:
- publishPost (POST /feed/publish, signed)
- publishAndCommit (publish → on-chain CREATE_POST)
- fetchPost / fetchStats / bumpView
- fetchAuthorPosts / fetchTimeline / fetchForYou / fetchTrending /
fetchHashtag
- buildCreatePostTx / buildDeletePostTx
- buildFollowTx / buildUnfollowTx
- buildLikePostTx / buildUnlikePostTx
- likePost / unlikePost / followUser / unfollowUser / deletePost
(high-level helpers that bundle build + submitTx)
- formatFee, formatRelativeTime, formatCount — Twitter-like display
helpers
components/feed/PostCard.tsx — core card component
- Memoised for performance (N-row re-render on every like elsewhere
would cost a lot otherwise)
- Optimistic like toggle with heart-bounce spring animation
- Hashtag highlighting in body text (tappable → hashtag feed)
- Long-press context menu (Delete, owner-only)
- Views / likes / share-link / reply icons in footer row
Navigation cleanup
- NavBar: removed the SOON pill on the Feed tab (it's shipped now)
- (app)/_layout: hide NavBar on /compose and /feed/* sub-routes
- AnimatedSlot: treat /feed/<id>, /feed/tag/<t>, /compose as
sub-routes so back-swipe-right closes them
Channel removal (client side)
- lib/types.ts: ContactKind stripped to 'direct' | 'group'; legacy
'channel' flag removed. `kind` field kept for backward compat with
existing AsyncStorage records.
- lib/devSeed.ts: dropped the 5 channel seed contacts.
- components/ChatTile.tsx: removed channel kindIcon branch.
Dependencies
- expo-image-manipulator added for client-side image compression.
- expo-file-system/legacy used for readAsStringAsync (SDK 54 moved
that API to the legacy sub-path; the new streaming API isn't yet
stable).
Type check
- npx tsc --noEmit — clean, 0 errors.
Next (not in this commit)
- Direct attachment-bytes endpoint on the server so post-detail can
actually render the image (currently shows placeholder with URL)
- Cross-relay body fetch via /api/relays + hosting_relay pubkey
- Mentions (@username) with notifications
- Full-text search
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Excluded from release bundle:
- CONTEXT.md, CHANGELOG.md (agent/project working notes)
- client-app/ (React Native messenger — tracked separately)
- contracts/hello_go/ (unused standalone example)
Kept contracts/counter/ and contracts/name_registry/ as vm-test fixtures
(referenced by vm/vm_test.go; NOT production contracts).
Docs refactor:
- docs/README.md — new top-level index with cross-references
- docs/quickstart.md — rewrite around single-node as primary path
- docs/node/README.md — full rewrite, all CLI flags, schema table
- docs/api/README.md — add /api/well-known-version, /api/update-check
- docs/contracts/README.md — split native (Go) vs WASM (user-deployable)
- docs/update-system.md — new, full 5-layer update system design
- README.md — link into docs/, drop CHANGELOG/client-app references
Build-time version system (inherited from earlier commits this branch):
- node --version / client --version with ldflags-injected metadata
- /api/well-known-version with {build, protocol_version, features[]}
- Peer-version gossip on dchain/version/v1
- /api/update-check against Gitea release API
- deploy/single/update.sh with semver guard + 15-min systemd jitter
