diff --git a/.gitignore b/.gitignore index 90a6d8e..e670232 100644 --- a/.gitignore +++ b/.gitignore @@ -32,3 +32,10 @@ deps.zig # User-specific configuration upstreams.json +upstreams-*.json +!upstreams.example.json + +# Frontend +web/node_modules/ +web-dist/ +*.local diff --git a/Dockerfile b/Dockerfile index 3a9f861..a94f714 100644 --- a/Dockerfile +++ b/Dockerfile @@ -7,7 +7,9 @@ FROM alpine:latest AS builder RUN apk add --no-cache \ curl \ xz \ - bash + bash \ + nodejs \ + npm # Install Zig 0.14.1 ARG ZIG_VERSION=0.14.1 @@ -23,9 +25,14 @@ WORKDIR /build COPY build.zig build.zig.zon ./ COPY src/ ./src/ -# Build the project +# Build the backend RUN zig build -Doptimize=ReleaseSafe +# Copy and build frontend +COPY web/ ./web/ +COPY Makefile ./ +RUN cd web && npm ci && npm run build + # Stage 2: Runtime stage FROM alpine:latest @@ -40,12 +47,15 @@ RUN addgroup -g 1000 leanpoint && \ adduser -D -u 1000 -G leanpoint leanpoint # Create directories -RUN mkdir -p /etc/leanpoint /var/lib/leanpoint && \ - chown -R leanpoint:leanpoint /etc/leanpoint /var/lib/leanpoint +RUN mkdir -p /etc/leanpoint /var/lib/leanpoint /usr/share/leanpoint/web && \ + chown -R leanpoint:leanpoint /etc/leanpoint /var/lib/leanpoint /usr/share/leanpoint # Copy binary from builder COPY --from=builder /build/zig-out/bin/leanpoint /usr/local/bin/leanpoint +# Copy web UI from builder +COPY --from=builder /build/web-dist/ /usr/share/leanpoint/web/ + # Copy example config COPY upstreams.example.json /etc/leanpoint/upstreams.example.json @@ -58,5 +68,5 @@ EXPOSE 5555 # Set working directory WORKDIR /var/lib/leanpoint -# Default command -CMD ["leanpoint", "--help"] +# Default command - serve with web UI +CMD ["leanpoint", "--upstreams-config", "/etc/leanpoint/upstreams.json", "--static-dir", "/usr/share/leanpoint/web"] diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..4ddc98b --- /dev/null +++ b/Makefile @@ -0,0 +1,59 @@ +.PHONY: all build build-backend build-web install-web clean clean-web run dev help + +all: build + +help: + @echo "Leanpoint Monorepo Build System" + @echo "" + @echo "Available targets:" + @echo " make build - Build both backend and frontend" + @echo " make build-backend - Build only the Zig backend" + @echo " make build-web - Build only the frontend" + @echo " make install-web - Install frontend dependencies" + @echo " make dev - Run frontend dev server (hot reload)" + @echo " make run - Run the backend" + @echo " make clean - Clean all build artifacts" + @echo " make clean-web - Clean only frontend artifacts" + @echo "" + +# Install frontend dependencies +install-web: + @echo "๐Ÿ“ฆ Installing frontend dependencies..." + cd web && npm install + +# Build frontend (production) +build-web: install-web + @echo "๐ŸŽจ Building frontend..." + cd web && npm run build + @echo "โœ… Frontend built successfully to ./web-dist/" + +# Build backend +build-backend: + @echo "โšก Building Zig backend..." + zig build + @echo "โœ… Backend built successfully to ./zig-out/bin/leanpoint" + +# Build everything +build: build-backend build-web + @echo "โœ… All components built successfully!" + +# Run frontend dev server +dev: + @echo "๐Ÿš€ Starting frontend dev server..." + cd web && npm run dev + +# Run backend +run: + @echo "๐Ÿš€ Running leanpoint..." + ./zig-out/bin/leanpoint --upstreams-config upstreams.json --static-dir web-dist + +# Clean frontend artifacts +clean-web: + @echo "๐Ÿงน Cleaning frontend artifacts..." + rm -rf web/node_modules web-dist + +# Clean all artifacts +clean: clean-web + @echo "๐Ÿงน Cleaning backend artifacts..." + rm -rf zig-out zig-cache + @echo "โœ… All artifacts cleaned!" diff --git a/README.md b/README.md index fc0b028..29a071d 100644 --- a/README.md +++ b/README.md @@ -1,88 +1,143 @@ -# LeanEthereum Checkpoint Status Service +# Leanpoint - Checkpoint Sync Provider [![CI](https://github.com/blockblaz/leanpoint/workflows/CI/badge.svg)](https://github.com/blockblaz/leanpoint/actions) [![License](https://img.shields.io/badge/license-MIT-blue.svg)](LICENSE) -A lightweight, fast Zig service that monitors finality across multiple Lean Ethereum lean nodes with consensus validation. Inspired by [checkpointz](https://github.com/ethpandaops/checkpointz), leanpoint provides reliable checkpoint sync monitoring for the Lean Ethereum ecosystem. +A lightweight, fast Zig service that monitors finality across multiple Lean Ethereum lean nodes with consensus validation and a modern web UI. Inspired by [checkpointz](https://github.com/ethpandaops/checkpointz). -## Table of Contents +## ๐ŸŽฏ What is Leanpoint? -- [Overview](#overview) -- [Features](#features) -- [Quick Start](#quick-start) -- [API Endpoints](#api-endpoints) -- [Configuration](#configuration) -- [Integration with lean-quickstart](#integration-with-lean-quickstart) -- [Supported Beacon API Formats](#supported-beacon-api-formats) -- [Consensus Algorithm](#consensus-algorithm) -- [Monitoring with Prometheus](#monitoring-with-prometheus) -- [Troubleshooting](#troubleshooting) -- [Advanced Usage](#advanced-usage) -- [Architecture Comparison](#architecture-comparison) -- [Contributing](#contributing) +Leanpoint is a monorepo containing: -## Overview +- **Zig Backend** (`src/`) - Fast, lightweight checkpoint sync provider (8MB binary) +- **React Frontend** (`web/`) - Modern web UI for real-time monitoring +- **Unified Build System** - Single `Makefile` to build everything -Leanpoint polls multiple lean nodes, requires 50%+ consensus before serving finality data, and exposes a simple HTTP API with Prometheus metrics. It's designed for: +It polls multiple lean nodes, requires 50%+ consensus before serving finality data, and provides: +- Real-time checkpoint status monitoring +- Per-upstream health tracking +- Prometheus metrics integration +- Web dashboard for visualization -- **Devnet Monitoring**: Track finality across local test networks -- **Production Deployments**: Provide reliable checkpoint sync data -- **Multi-Client Testing**: Monitor zeam, ream, qlean, lantern, lighthouse, grandine, and more -- **Consensus Validation**: Ensure finality agreement across diverse implementations +## ๐Ÿ“ Project Structure -## Features +``` +leanpoint/ +โ”œโ”€โ”€ src/ # Zig backend source +โ”‚ โ”œโ”€โ”€ main.zig # Entry point +โ”‚ โ”œโ”€โ”€ server.zig # HTTP server + API + static file serving +โ”‚ โ”œโ”€โ”€ state.zig # Application state with upstream tracking +โ”‚ โ”œโ”€โ”€ upstreams.zig # Upstream manager with consensus +โ”‚ โ”œโ”€โ”€ lean_api.zig # Lean Ethereum API client +โ”‚ โ”œโ”€โ”€ metrics.zig # Prometheus metrics +โ”‚ โ””โ”€โ”€ config.zig # Configuration loader +โ”œโ”€โ”€ web/ # React frontend +โ”‚ โ”œโ”€โ”€ src/ +โ”‚ โ”‚ โ”œโ”€โ”€ components/ # StatusCard, UpstreamsTable +โ”‚ โ”‚ โ”œโ”€โ”€ api/ # API client functions +โ”‚ โ”‚ โ”œโ”€โ”€ types/ # TypeScript interfaces +โ”‚ โ”‚ โ””โ”€โ”€ App.tsx # Main app +โ”‚ โ”œโ”€โ”€ package.json +โ”‚ โ””โ”€โ”€ README.md +โ”œโ”€โ”€ web-dist/ # Built frontend (generated) +โ”œโ”€โ”€ Makefile # Unified build system +โ”œโ”€โ”€ Dockerfile # Docker image with UI +โ””โ”€โ”€ README.md # This file +``` + +## ๐Ÿš€ Quick Start + +### Build Everything -- โœ… **Multi-upstream support** with 50%+ consensus requirement (like checkpointz) -- โœ… **Parallel polling** of all lean nodes for low latency -- โœ… **Per-upstream health tracking** with error counts and timestamps -- โœ… **Prometheus metrics** for comprehensive monitoring -- โœ… **Health check endpoint** for load balancers and orchestration -- โœ… **Lightweight binary** (~8MB) with minimal resource usage -- โœ… **Easy integration** with lean-quickstart devnets -- โœ… **Standard Beacon API** format support +```bash +make build +``` -## Quick Start +This builds both the Zig backend and the React frontend. -### 1. Build +### Run with Web UI ```bash -zig build +# Create configuration +cp upstreams.example.json upstreams.json +# Edit upstreams.json with your lean node endpoints + +# Run with web interface +./zig-out/bin/leanpoint --upstreams-config upstreams.json --static-dir web-dist ``` -### 2. Create Configuration +### Access the Dashboard + +Open your browser to: + +``` +http://localhost:5555 +``` + +You'll see: +- Real-time checkpoint status (finalized/justified slots) +- Upstreams table with health status +- Consensus information +- Historical checkpoint tracking + +## ๐Ÿ› ๏ธ Development Workflow + +### Backend Development -Using the helper script with lean-quickstart: ```bash -python3 convert-validator-config.py \ - ../lean-quickstart/local-devnet/genesis/validator-config.yaml \ - upstreams.json +# Build only backend +make build-backend + +# Run backend +./zig-out/bin/leanpoint --upstreams-config upstreams.json ``` -Or create manually: +### Frontend Development + ```bash -cp upstreams.example.json upstreams.json -# Edit as needed +# Start frontend dev server with hot reload +make dev +# or +cd web && npm run dev ``` -### 3. Run +The dev server runs on `http://localhost:5173` and proxies API requests to `http://localhost:5555`. + +**Important**: Keep the backend running while developing the frontend! ```bash +# Terminal 1: Backend ./zig-out/bin/leanpoint --upstreams-config upstreams.json + +# Terminal 2: Frontend dev server +make dev ``` -### 4. Check Status +### Production Build ```bash -curl http://localhost:5555/status -curl http://localhost:5555/metrics -curl http://localhost:5555/healthz +# Build everything for production +make build + +# Run with static frontend +./zig-out/bin/leanpoint --upstreams-config upstreams.json --static-dir web-dist ``` -## API Endpoints +## ๐Ÿ“ก API Endpoints + +The backend exposes these endpoints: + +| Endpoint | Description | Used By | +|----------|-------------|---------| +| `GET /` | Web UI (if `--static-dir` set) | Browsers | +| `GET /status` | Current checkpoint status (JSON) | Frontend, Monitoring | +| `GET /api/upstreams` | Upstream nodes data (JSON) | Frontend | +| `GET /metrics` | Prometheus metrics | Monitoring | +| `GET /healthz` | Health check | Load balancers | ### GET /status -Returns current finality checkpoint with metadata: +Returns current finality checkpoint: ```json { @@ -96,332 +151,236 @@ Returns current finality checkpoint with metadata: } ``` -**Fields:** -- `justified_slot`: Latest justified slot number (consensus from upstreams) -- `finalized_slot`: Latest finalized slot number (consensus from upstreams) -- `last_updated_ms`: Timestamp of last update attempt (milliseconds since epoch) -- `last_success_ms`: Timestamp of last successful consensus (milliseconds since epoch) -- `stale`: Boolean indicating if data is stale (exceeds threshold) -- `error_count`: Total number of errors encountered -- `last_error`: Most recent error message (null if no errors) +### GET /api/upstreams -**HTTP Status:** -- `200 OK`: Data available (may be stale if `stale: true`) -- `500 Internal Server Error`: Server error +Returns detailed upstream status: -### GET /metrics - -Returns Prometheus metrics: - -``` -# HELP leanpoint_justified_slot Latest justified slot. -# TYPE leanpoint_justified_slot gauge -leanpoint_justified_slot 12345 -# HELP leanpoint_finalized_slot Latest finalized slot. -# TYPE leanpoint_finalized_slot gauge -leanpoint_finalized_slot 12344 -# HELP leanpoint_last_success_timestamp_ms Last successful poll time (ms since epoch). -# TYPE leanpoint_last_success_timestamp_ms gauge -leanpoint_last_success_timestamp_ms 1705852800000 -# HELP leanpoint_last_updated_timestamp_ms Last update time (ms since epoch). -# TYPE leanpoint_last_updated_timestamp_ms gauge -leanpoint_last_updated_timestamp_ms 1705852800000 -# HELP leanpoint_last_latency_ms Last poll latency in milliseconds. -# TYPE leanpoint_last_latency_ms gauge -leanpoint_last_latency_ms 45 -# HELP leanpoint_error_total Total poll errors. -# TYPE leanpoint_error_total counter -leanpoint_error_total 0 +```json +{ + "upstreams": [ + { + "name": "zeam_0", + "url": "http://127.0.0.1:8081", + "path": "/v0/health", + "healthy": true, + "last_success_ms": 1705852800000, + "error_count": 0, + "last_error": null, + "last_justified_slot": 12345, + "last_finalized_slot": 12344 + } + ], + "consensus": { + "total_upstreams": 4, + "responding_upstreams": 4, + "has_consensus": true + } +} ``` -**Metrics:** -- `leanpoint_justified_slot`: Latest justified slot (gauge) -- `leanpoint_finalized_slot`: Latest finalized slot (gauge) -- `leanpoint_last_success_timestamp_ms`: Last successful consensus time (gauge) -- `leanpoint_last_updated_timestamp_ms`: Last update attempt time (gauge) -- `leanpoint_last_latency_ms`: Poll latency in milliseconds (gauge) -- `leanpoint_error_total`: Total errors (counter) +## ๐Ÿงช Testing with Local Devnet -### GET /healthz +### 1. Start Local Lean Devnet -Health check for load balancers: +```bash +cd /path/to/lean-quickstart +./spin-node.sh --node all +``` -- Returns `200 OK` when data is fresh -- Returns `503 Service Unavailable` when stale +### 2. Generate Upstreams Config -**Health Criteria:** -- Data must not be stale (within `--stale-ms` threshold) -- At least one successful poll must have occurred +```bash +cd /path/to/leanpoint +python3 convert-validator-config.py \ + ../lean-quickstart/local-devnet/genesis/validator-config.yaml \ + upstreams-local.json +``` -### Static Files (Optional) +### 3. Run Leanpoint with UI -If `--static-dir` is set, other paths serve files from that directory. +```bash +./zig-out/bin/leanpoint --upstreams-config upstreams-local.json --static-dir web-dist +``` -## Configuration +### 4. Monitor in Browser -### Defaults +Open `http://localhost:5555` and watch the dashboard update in real-time! -| Option | Default | Description | -|--------|---------|-------------| -| Bind address | `0.0.0.0` | HTTP server bind address | -| Port | `5555` | HTTP server port | -| Lean URL | `http://127.0.0.1:5052` | Single upstream URL (legacy) | -| Lean path | `/status` | Beacon API endpoint path | -| Poll interval | `10000` ms | Time between upstream polls | -| Request timeout | `5000` ms | HTTP request timeout | -| Stale threshold | `30000` ms | Data freshness threshold | +## ๐ŸŽจ Customizing the UI -### Single Upstream Mode (Legacy) +### Change Colors/Theme -For monitoring a single lean node: +Edit `web/src/styles/App.css`: -```bash -leanpoint \ - --bind 0.0.0.0 \ - --port 5555 \ - --lean-url http://127.0.0.1:5052 \ - --lean-path /status \ - --poll-ms 10000 \ - --timeout-ms 5000 \ - --stale-ms 30000 \ - --static-dir ./web +```css +:root { + --primary-color: #6366f1; /* Change primary color */ + --secondary-color: #8b5cf6; /* Change secondary color */ + --bg-color: #0f172a; /* Change background */ + /* ... more variables ... */ +} ``` -### Multi-Upstream Mode (Recommended) +### Modify Components -Monitor multiple lean nodes with consensus validation: +- **Status Cards**: `web/src/components/StatusCard.tsx` +- **Upstreams Table**: `web/src/components/UpstreamsTable.tsx` +- **Main Layout**: `web/src/App.tsx` -```bash -leanpoint \ - --upstreams-config ./upstreams.json \ - --poll-ms 10000 \ - --timeout-ms 5000 \ - --stale-ms 30000 -``` +After making changes: -**How it works:** -1. Polls all upstreams in parallel every 10 seconds -2. Collects justified/finalized slot pairs from each -3. Only serves data when **50%+ of upstreams agree** -4. Tracks per-upstream health (errors, latency, last success) - -**Example `upstreams.json`:** +```bash +# Rebuild frontend +make build-web -```json -{ - "upstreams": [ - { - "name": "zeam_0", - "url": "http://localhost:5052", - "path": "/status" - }, - { - "name": "ream_0", - "url": "http://localhost:5053", - "path": "/status" - }, - { - "name": "qlean_0", - "url": "http://localhost:5054", - "path": "/status" - }, - { - "name": "lighthouse_0", - "url": "http://localhost:5055", - "path": "/eth/v1/beacon/states/finalized/finality_checkpoints" - } - ] -} +# Or use hot reload during development +make dev ``` -### Environment Variables +## ๐Ÿ”ง Makefile Commands -All CLI options can be set via environment variables: +| Command | Description | +|---------|-------------| +| `make build` | Build backend + frontend | +| `make build-backend` | Build only Zig backend | +| `make build-web` | Build only frontend | +| `make install-web` | Install frontend dependencies | +| `make dev` | Start frontend dev server | +| `make run` | Run backend with UI | +| `make clean` | Clean all build artifacts | +| `make clean-web` | Clean only frontend artifacts | +| `make help` | Show all commands | -```bash -LEANPOINT_BIND_ADDR=0.0.0.0 -LEANPOINT_BIND_PORT=5555 -LEANPOINT_LEAN_URL=http://127.0.0.1:5052 -LEANPOINT_LEAN_PATH=/status -LEANPOINT_POLL_MS=10000 -LEANPOINT_TIMEOUT_MS=5000 -LEANPOINT_STALE_MS=30000 -LEANPOINT_STATIC_DIR=/path/to/static -LEANPOINT_UPSTREAMS_CONFIG=/path/to/upstreams.json -``` +## Configuration ### CLI Options -``` -Usage: - leanpoint [options] +```bash +leanpoint [options] Options: --bind Bind address (default 0.0.0.0) --port Bind port (default 5555) - --lean-url LeanEthereum base URL (legacy single upstream) - --lean-path LeanEthereum path (default /status) --upstreams-config JSON config file with multiple upstreams - --poll-ms Poll interval in milliseconds - --timeout-ms Request timeout in milliseconds - --stale-ms Stale threshold in milliseconds - --static-dir Optional static frontend directory + --poll-ms Poll interval in milliseconds (default 10000) + --timeout-ms Request timeout in milliseconds (default 5000) + --stale-ms Stale threshold in milliseconds (default 30000) + --static-dir Static frontend directory (e.g., web-dist) --help Show this help ``` -## Integration with lean-quickstart - -Perfect integration with [lean-quickstart](https://github.com/your-org/lean-quickstart) devnets: - -### Step-by-Step Guide - -#### 1. Start your devnet - -```bash -cd /path/to/lean-quickstart -NETWORK_DIR=local-devnet ./spin-node.sh --node all --generateGenesis -``` - -#### 2. Generate upstreams config +### Upstreams Configuration -```bash -cd /path/to/leanpoint -python3 convert-validator-config.py \ - ../lean-quickstart/local-devnet/genesis/validator-config.yaml \ - upstreams.json -``` - -This automatically creates configuration for all nodes in your devnet: +**Example `upstreams.json`:** ```json { "upstreams": [ { "name": "zeam_0", - "url": "http://127.0.0.1:5052", - "path": "/status" + "url": "http://127.0.0.1:8081", + "path": "/v0/health" }, { "name": "ream_0", - "url": "http://127.0.0.1:5053", - "path": "/status" + "url": "http://127.0.0.1:8082", + "path": "/v0/health" }, { "name": "qlean_0", - "url": "http://127.0.0.1:5054", - "path": "/status" + "url": "http://127.0.0.1:8083", + "path": "/v0/health" } ] } ``` -#### 3. Monitor finality +### Generate from lean-quickstart + +Use the helper script to convert `validator-config.yaml`: ```bash -./zig-out/bin/leanpoint --upstreams-config upstreams.json +python3 convert-validator-config.py \ + /path/to/validator-config.yaml \ + upstreams.json ``` -#### 4. Watch consensus +## ๐Ÿ› Troubleshooting -```bash -# Terminal 1: Follow leanpoint output -./zig-out/bin/leanpoint --upstreams-config upstreams.json +### Backend won't start -# Terminal 2: Poll status -watch -n 2 'curl -s http://localhost:5555/status | jq' +```bash +# Check if port 5555 is already in use +lsof -i :5555 -# Terminal 3: Monitor metrics -curl -s http://localhost:5555/metrics | grep leanpoint_ +# Try a different port +./zig-out/bin/leanpoint --upstreams-config upstreams.json --port 5556 --static-dir web-dist ``` -### Convert Validator Config Script +### Frontend shows "Loading..." forever -The `convert-validator-config.py` helper script automatically: -- Reads validator-config.yaml from lean-quickstart -- Extracts validator names and network information -- Generates appropriate HTTP endpoints for each validator -- Creates upstreams.json in the correct format +1. Check backend is running: `curl http://localhost:5555/status` +2. Check browser console for errors +3. Verify API proxy in `web/vite.config.ts` -**Usage:** +### Build fails ```bash -# With default paths -python3 convert-validator-config.py - -# With custom paths -python3 convert-validator-config.py \ - /path/to/validator-config.yaml \ - /path/to/output.json - -# Adjust base port if needed (default: 5052) -# Edit the script to change base_port parameter +# Clean and rebuild +make clean +make build ``` -## Supported Beacon API Formats +### UI not updating in dev mode -Leanpoint automatically handles multiple API response formats: +1. Check both backend and frontend dev server are running +2. Hard refresh browser (Cmd+Shift+R or Ctrl+Shift+R) +3. Check browser console for errors -### Format 1: Lean Ethereum Custom +## ๐Ÿ“ฆ Deployment -Used by zeam, ream, qlean, and other Lean Ethereum clients. +### Docker (Recommended) -**Endpoint:** `/status` +The Docker image includes the complete web UI: -**Response:** -```json -{ - "justified_slot": 123, - "finalized_slot": 120 -} -``` +```bash +# Build image (includes web UI) +docker build -t leanpoint:latest . -**Configuration:** -```json -{ - "name": "zeam_0", - "url": "http://localhost:5052", - "path": "/status" -} -``` +# Run with web UI +docker run -p 5555:5555 \ + -v $(pwd)/upstreams.json:/etc/leanpoint/upstreams.json \ + leanpoint:latest -### Format 2: Standard Beacon API +# The image automatically serves the web UI from /usr/share/leanpoint/web +# Access at http://localhost:5555 +``` -Used by lighthouse, grandine, lodestar, teku, nimbus, prysm. +### Static Binary + Frontend -**Endpoint:** `/eth/v1/beacon/states/finalized/finality_checkpoints` +```bash +# Build everything +make build -**Response:** -```json -{ - "data": { - "justified": {"slot": "123"}, - "finalized": {"slot": "120"} - } -} -``` +# Deploy these files: +# - zig-out/bin/leanpoint (backend binary) +# - web-dist/ (frontend static files) +# - upstreams.json (your config) -**Configuration:** -```json -{ - "name": "lighthouse_0", - "url": "http://localhost:5052", - "path": "/eth/v1/beacon/states/finalized/finality_checkpoints" -} +# Run on server +./leanpoint --upstreams-config upstreams.json --static-dir web-dist ``` -### Format 3: Nested Data Object - -Alternative format with nested structure. +## Features -**Response:** -```json -{ - "data": { - "justified_slot": 123, - "finalized_slot": 120 - } -} -``` +- โœ… **Multi-upstream support** with 50%+ consensus requirement +- โœ… **Parallel polling** of all lean nodes for low latency +- โœ… **Per-upstream health tracking** with error counts and timestamps +- โœ… **Modern web UI** with real-time updates +- โœ… **Prometheus metrics** for comprehensive monitoring +- โœ… **Health check endpoint** for load balancers +- โœ… **Lightweight binary** (~8MB backend + 155KB frontend) +- โœ… **Easy integration** with lean-quickstart devnets ## Consensus Algorithm @@ -430,27 +389,19 @@ Leanpoint requires **50%+ of upstreams to agree** before serving finality data. ### How It Works 1. **Poll Phase**: All upstreams are polled concurrently -2. **Collection Phase**: Justified/finalized slot pairs are collected from each successful response +2. **Collection Phase**: Justified/finalized slot pairs are collected 3. **Counting Phase**: Each unique slot pair is counted 4. **Consensus Phase**: Only pairs with >50% votes are accepted -5. **Serving Phase**: Consensus data is served to clients +5. **Serving Phase**: Consensus data is exposed via API and UI ### Consensus Examples -| Scenario | Agreement | Result | Example | -|----------|-----------|--------|---------| -| 3 upstreams, all agree | 3/3 = 100% | โœ… Serve data | All at (100, 99) | -| 3 upstreams, 2 agree | 2/3 = 67% | โœ… Serve data | Two at (100, 99), one at (101, 100) | -| 4 upstreams, 2 agree | 2/4 = 50% | โŒ No consensus | Two at (100, 99), two at (101, 100) | -| 5 upstreams, 3 agree | 3/5 = 60% | โœ… Serve data | Three at (100, 99), rest differ | -| 3 upstreams, all differ | 1/3 = 33% | โŒ No consensus | All on different slots | - -### Why Consensus Matters - -- **Byzantine Fault Tolerance**: Single node failures don't affect service -- **Fork Detection**: Disagreement indicates nodes may be on different forks -- **Data Integrity**: Only serve finality data that multiple implementations agree on -- **Network Health**: Consensus failures indicate potential network issues +| Scenario | Agreement | Result | +|----------|-----------|--------| +| 3 upstreams, all agree | 3/3 = 100% | โœ… Serve data | +| 3 upstreams, 2 agree | 2/3 = 67% | โœ… Serve data | +| 4 upstreams, 2 agree | 2/4 = 50% | โŒ No consensus | +| 5 upstreams, 3 agree | 3/5 = 60% | โœ… Serve data | ## Monitoring with Prometheus @@ -467,487 +418,22 @@ scrape_configs: metrics_path: '/metrics' ``` -### Useful Queries - -**Current finalized slot:** -```promql -leanpoint_finalized_slot -``` - -**Finality progress (slots per minute):** -```promql -rate(leanpoint_finalized_slot[5m]) * 60 -``` - -**Error rate:** -```promql -rate(leanpoint_error_total[5m]) -``` +### Available Metrics -**Time since last successful consensus (seconds):** -```promql -(time() * 1000 - leanpoint_last_success_timestamp_ms) / 1000 ``` - -**Data staleness alert (>60 seconds):** -```promql -(time() * 1000 - leanpoint_last_success_timestamp_ms) > 60000 -``` - -**Poll latency:** -```promql -leanpoint_last_latency_ms +leanpoint_justified_slot # Latest justified slot +leanpoint_finalized_slot # Latest finalized slot +leanpoint_last_success_timestamp_ms # Last successful consensus +leanpoint_last_updated_timestamp_ms # Last update attempt +leanpoint_last_latency_ms # Poll latency +leanpoint_error_total # Total errors ``` -### Grafana Dashboard +## ๐Ÿ”— Related Documentation -Create a dashboard with panels for: -1. **Finalized Slot Timeline**: Line graph of `leanpoint_finalized_slot` -2. **Finality Progress**: Gauge showing `rate(leanpoint_finalized_slot[5m]) * 60` -3. **Error Count**: Counter of `leanpoint_error_total` -4. **Staleness Indicator**: Alert when data exceeds threshold -5. **Poll Latency**: Line graph of `leanpoint_last_latency_ms` - -## Troubleshooting - -### No Consensus Reached - -**Symptom:** -```json -{ - "last_error": "no consensus reached among upstreams" -} -``` - -**Causes:** -- Nodes are not synced or on different forks -- Network connectivity issues -- Insufficient number of upstreams responding -- Nodes returning different data formats - -**Solutions:** - -```bash -# Check individual node status -curl http://localhost:5052/status -curl http://localhost:5053/status -curl http://localhost:5054/status - -# Verify nodes are synced -# Check node logs for sync status - -# Test network connectivity -for port in 5052 5053 5054; do - curl -v http://localhost:$port/status -done - -# Verify response formats match expected -curl -s http://localhost:5052/status | jq -``` - -### Connection Refused - -**Symptom:** -```json -{ - "last_error": "poll error: ConnectionRefused" -} -``` - -**Solutions:** - -```bash -# Verify correct ports in upstreams.json -cat upstreams.json | jq '.upstreams[].url' - -# Check nodes are running -ps aux | grep -E "zeam|ream|qlean" - -# Verify lean API is exposed -curl -v http://localhost:5052/status - -# Check node startup logs for API endpoint -``` - -### Stale Data - -**Symptom:** -- `/healthz` returns `503 Service Unavailable` -- `/status` shows `"stale": true` - -**Solutions:** - -```bash -# Increase stale threshold -leanpoint --upstreams-config upstreams.json --stale-ms 60000 - -# Decrease poll interval -leanpoint --upstreams-config upstreams.json --poll-ms 5000 - -# Check if nodes are actually progressing -watch -n 1 'curl -s http://localhost:5052/status' - -# Verify nodes are not stuck -curl http://localhost:5052/status -sleep 15 -curl http://localhost:5052/status -# Slots should increase -``` - -### Timeout Errors - -**Symptom:** -```json -{ - "last_error": "poll error: Timeout" -} -``` - -**Solutions:** - -```bash -# Increase request timeout -leanpoint --upstreams-config upstreams.json --timeout-ms 10000 - -# Check network latency -time curl http://localhost:5052/status - -# Verify node is responsive -curl -w "@curl-format.txt" http://localhost:5052/status -``` - -### Wrong Beacon API Format - -**Symptom:** -```json -{ - "last_error": "poll error: UnexpectedResponse" -} -``` - -**Solutions:** - -```bash -# Check actual response format -curl -s http://localhost:5052/status | jq - -# For Lean clients, use /status -# For Standard Beacon API, use /eth/v1/beacon/states/finalized/finality_checkpoints - -# Update path in upstreams.json accordingly -``` - -## Advanced Usage - -### Docker Deployment - -**Build the image:** -```bash -docker build -t leanpoint:latest . -``` - -**Run the container:** -```bash -# Create configuration first -cp upstreams.example.json upstreams.json -# Edit upstreams.json with your lean node endpoints - -# Run container -docker run -d \ - --name leanpoint \ - --restart unless-stopped \ - -p 5555:5555 \ - -v $(pwd)/upstreams.json:/etc/leanpoint/upstreams.json:ro \ - leanpoint:latest \ - leanpoint --upstreams-config /etc/leanpoint/upstreams.json -``` - -**Monitor:** -```bash -# View logs -docker logs -f leanpoint - -# Check status -curl http://localhost:5555/status -curl http://localhost:5555/metrics -``` - -**Stop and cleanup:** -```bash -docker stop leanpoint -docker rm leanpoint -``` - -**Multi-architecture builds:** -```bash -# Build for specific platform -docker build --platform linux/amd64 -t leanpoint:amd64 . -docker build --platform linux/arm64 -t leanpoint:arm64 . - -# Or use buildx for multi-arch -docker buildx build --platform linux/amd64,linux/arm64 -t leanpoint:latest . -``` - -### Systemd Service - -**`/etc/systemd/system/leanpoint.service`:** -```ini -[Unit] -Description=Leanpoint Checkpoint Status Service -After=network.target - -[Service] -Type=simple -User=leanpoint -WorkingDirectory=/opt/leanpoint -ExecStart=/opt/leanpoint/leanpoint --upstreams-config /opt/leanpoint/upstreams.json -Restart=always -RestartSec=10 -StandardOutput=journal -StandardError=journal - -[Install] -WantedBy=multi-user.target -``` - -**Setup:** -```bash -# Install -sudo cp zig-out/bin/leanpoint /opt/leanpoint/ -sudo cp upstreams.json /opt/leanpoint/ -sudo cp leanpoint.service /etc/systemd/system/ - -# Create user -sudo useradd -r -s /bin/false leanpoint -sudo chown -R leanpoint:leanpoint /opt/leanpoint - -# Enable and start -sudo systemctl daemon-reload -sudo systemctl enable leanpoint -sudo systemctl start leanpoint - -# Check status -sudo systemctl status leanpoint -sudo journalctl -u leanpoint -f -``` - -### Kubernetes Deployment - -**`deployment.yaml`:** -```yaml -apiVersion: v1 -kind: ConfigMap -metadata: - name: leanpoint-config -data: - upstreams.json: | - { - "upstreams": [ - {"name": "zeam_0", "url": "http://zeam-0:5052", "path": "/status"}, - {"name": "ream_0", "url": "http://ream-0:5053", "path": "/status"} - ] - } ---- -apiVersion: apps/v1 -kind: Deployment -metadata: - name: leanpoint -spec: - replicas: 1 - selector: - matchLabels: - app: leanpoint - template: - metadata: - labels: - app: leanpoint - spec: - containers: - - name: leanpoint - image: leanpoint:latest - ports: - - containerPort: 5555 - name: http - volumeMounts: - - name: config - mountPath: /etc/leanpoint - livenessProbe: - httpGet: - path: /healthz - port: 5555 - initialDelaySeconds: 10 - periodSeconds: 30 - readinessProbe: - httpGet: - path: /healthz - port: 5555 - initialDelaySeconds: 5 - periodSeconds: 10 - volumes: - - name: config - configMap: - name: leanpoint-config ---- -apiVersion: v1 -kind: Service -metadata: - name: leanpoint -spec: - selector: - app: leanpoint - ports: - - port: 5555 - targetPort: 5555 - name: http -``` - -### Reverse Proxy with nginx - -**With SSL and CORS:** -```nginx -server { - listen 443 ssl http2; - server_name checkpoint.example.com; - - ssl_certificate /etc/letsencrypt/live/checkpoint.example.com/fullchain.pem; - ssl_certificate_key /etc/letsencrypt/live/checkpoint.example.com/privkey.pem; - - # Rate limiting - limit_req_zone $binary_remote_addr zone=leanpoint:10m rate=10r/s; - - location / { - limit_req zone=leanpoint burst=20; - proxy_pass http://localhost:5555; - proxy_set_header Host $host; - proxy_set_header X-Real-IP $remote_addr; - proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; - proxy_set_header X-Forwarded-Proto $scheme; - - # CORS headers - add_header Access-Control-Allow-Origin *; - add_header Access-Control-Allow-Methods "GET, OPTIONS"; - add_header Access-Control-Allow-Headers "Content-Type"; - } -} -``` - -### Monitoring Stack with Docker Compose - -**`docker-compose.yml`:** -```yaml -version: '3.8' - -services: - leanpoint: - image: leanpoint:latest - ports: - - "5555:5555" - volumes: - - ./upstreams.json:/etc/leanpoint/upstreams.json - restart: always - - prometheus: - image: prom/prometheus:latest - ports: - - "9090:9090" - volumes: - - ./prometheus.yml:/etc/prometheus/prometheus.yml - - prometheus_data:/prometheus - command: - - '--config.file=/etc/prometheus/prometheus.yml' - - '--storage.tsdb.path=/prometheus' - restart: always - - grafana: - image: grafana/grafana:latest - ports: - - "3000:3000" - volumes: - - grafana_data:/var/lib/grafana - environment: - - GF_SECURITY_ADMIN_PASSWORD=admin - restart: always - -volumes: - prometheus_data: - grafana_data: -``` - -## Architecture Comparison - -### Leanpoint vs Checkpointz - -| Feature | Leanpoint | Checkpointz | -|---------|-----------|-------------| -| **Language** | Zig | Go | -| **Binary Size** | ~8MB | ~50MB | -| **Config Format** | JSON | YAML | -| **Consensus** | 50%+ | 50%+ | -| **Finality Status** | โœ… | โœ… | -| **Block Serving** | โŒ (future) | โœ… | -| **State Serving** | โŒ (future) | โœ… | -| **Historical Epochs** | โŒ (future) | โœ… | -| **Caching** | Minimal | Extensive | -| **Web UI** | Optional | Built-in | -| **Target** | Lean Ethereum | Standard Ethereum | -| **Resource Usage** | Very Low | Low | -| **Startup Time** | Instant | Fast | - -### Design Philosophy - -**Leanpoint:** -- Minimalist approach focused on finality monitoring -- Optimized for Lean Ethereum ecosystem -- Single binary with no external dependencies -- Configuration via simple JSON -- Ideal for devnets and lightweight deployments - -**Checkpointz:** -- Full-featured checkpoint sync provider -- Serves complete blocks and states -- Integrated web UI with client guides -- Sophisticated caching strategies -- Production-ready for public endpoints - -### When to Use Leanpoint - -- โœ… Monitoring Lean Ethereum devnets -- โœ… Lightweight production finality monitoring -- โœ… Multi-client consensus validation -- โœ… Low-resource environments -- โœ… Simple deployment requirements - -### When to Use Checkpointz - -- โœ… Full checkpoint sync provider -- โœ… Serving beacon chain blocks and states -- โœ… Public-facing checkpoint endpoints -- โœ… Standard Ethereum networks -- โœ… Need for integrated web UI - -## File Structure - -``` -leanpoint/ -โ”œโ”€โ”€ src/ -โ”‚ โ”œโ”€โ”€ main.zig # Entry point with single/multi mode -โ”‚ โ”œโ”€โ”€ config.zig # Configuration loader -โ”‚ โ”œโ”€โ”€ upstreams.zig # Upstream manager with consensus -โ”‚ โ”œโ”€โ”€ upstreams_config.zig # JSON config parser -โ”‚ โ”œโ”€โ”€ lean_api.zig # Beacon API client -โ”‚ โ”œโ”€โ”€ metrics.zig # Prometheus metrics -โ”‚ โ”œโ”€โ”€ server.zig # HTTP server -โ”‚ โ””โ”€โ”€ state.zig # Application state -โ”œโ”€โ”€ zig-out/ -โ”‚ โ””โ”€โ”€ bin/ -โ”‚ โ””โ”€โ”€ leanpoint # Compiled binary -โ”œโ”€โ”€ upstreams.example.json # Example configuration -โ”œโ”€โ”€ convert-validator-config.py # Helper script -โ”œโ”€โ”€ build.zig # Build configuration -โ”œโ”€โ”€ build.zig.zon # Package manifest -โ”œโ”€โ”€ .gitignore # Git ignore rules -โ””โ”€โ”€ README.md # This file -``` +- **Frontend Development**: See `web/README.md` for frontend-specific docs +- **Checkpointz (inspiration)**: https://github.com/ethpandaops/checkpointz +- **Lean Quickstart**: Integration with devnets ## Contributing @@ -956,61 +442,20 @@ Contributions welcome! Please: 1. Fork the repository 2. Create a feature branch (`git checkout -b feat/amazing-feature`) 3. Make your changes with clear commit messages -4. Add tests if applicable -5. Ensure code compiles: `zig build` -6. Run tests: `zig build test` -7. Format code: `zig fmt src/` -8. Submit a pull request +4. Build and test: `make build` +5. Submit a pull request ### CI/CD -The repository includes GitHub Actions CI that automatically: -- Builds the project +GitHub Actions CI automatically: +- Builds both backend and frontend - Runs tests - Checks code formatting - Builds Docker image -All pull requests must pass CI checks before merging. - -### Development Setup - -```bash -# Clone repository -git clone https://github.com/your-org/leanpoint.git -cd leanpoint - -# Build -zig build - -# Run tests -zig build test - -# Format code -zig fmt src/ - -# Run locally -./zig-out/bin/leanpoint --help -``` - -### Reporting Issues - -When reporting issues, please include: -- Leanpoint version: `./zig-out/bin/leanpoint --help` -- Zig version: `zig version` -- Operating system and architecture -- Configuration (upstreams.json) -- Error messages or unexpected behavior -- Steps to reproduce - ## License -[Specify your license here] - -## Support - -- **Issues**: [GitHub Issues](https://github.com/your-org/leanpoint/issues) -- **Discussions**: [GitHub Discussions](https://github.com/your-org/leanpoint/discussions) -- **Documentation**: This README +MIT License - see LICENSE file for details ## Acknowledgments diff --git a/build.zig b/build.zig index ec57e14..21e7b69 100644 --- a/build.zig +++ b/build.zig @@ -28,6 +28,13 @@ pub fn build(b: *std.Build) void { .optimize = optimize, }); + // Add SSZ dependency + const ssz_dep = b.dependency("ssz", .{ + .target = target, + .optimize = optimize, + }); + const ssz_mod = ssz_dep.module("ssz.zig"); + // We will also create a module for our other entry point, 'main.zig'. const exe_mod = b.createModule(.{ // `root_source_file` is the Zig "entry point" of the module. If a module @@ -39,6 +46,10 @@ pub fn build(b: *std.Build) void { .optimize = optimize, }); + // Add SSZ module to both lib_mod and exe_mod + lib_mod.addImport("ssz", ssz_mod); + exe_mod.addImport("ssz", ssz_mod); + // Modules can depend on one another using the `std.Build.Module.addImport` function. // This is what allows Zig source code to use `@import("foo")` where 'foo' is not a // file path. In this case, we set up `exe_mod` to import `lib_mod`. diff --git a/build.zig.zon b/build.zig.zon index 646f6db..6aa41f5 100644 --- a/build.zig.zon +++ b/build.zig.zon @@ -36,6 +36,10 @@ // Once all dependencies are fetched, `zig build` no longer requires // internet connectivity. .dependencies = .{ + .ssz = .{ + .url = "git+https://github.com/blockblaz/ssz.zig#5ce7322fc45cab4f215021cae2579d1343e05d55", + .hash = "ssz-0.0.9-Lfwd61PEAgAUPJfUQiK4R5gRX_lTWOd_qYwNT-KAhRLA", + }, // See `zig fetch --save ` for a command-line interface for adding dependencies. //.example = .{ // // When updating this field to a new URL, be sure to delete the corresponding diff --git a/convert-validator-config.py b/convert-validator-config.py index 4445cee..18136ff 100755 --- a/convert-validator-config.py +++ b/convert-validator-config.py @@ -53,7 +53,7 @@ def convert_validator_config(yaml_path: str, output_path: str, base_port: int = upstream = { "name": name, "url": f"http://{ip}:{http_port}", - "path": "/health" # Health check endpoint + "path": "/v0/health" # Health check endpoint } upstreams.append(upstream) diff --git a/src/lean_api.zig b/src/lean_api.zig index 6fc3c4f..e5cc96c 100644 --- a/src/lean_api.zig +++ b/src/lean_api.zig @@ -5,28 +5,25 @@ pub const Slots = struct { finalized_slot: u64, }; -/// Fetch finalized and justified slots from separate endpoints +/// Fetch finalized and justified slots from lean node endpoints +/// The finalized endpoint returns SSZ-encoded LeanState data pub fn fetchSlots( allocator: std.mem.Allocator, client: *std.http.Client, base_url: []const u8, _: []const u8, // path parameter not used anymore ) !Slots { - // Fetch finalized slot - const finalized_slot = try fetchSlotFromEndpoint( + // Fetch finalized slot from SSZ-encoded endpoint + const finalized_slot = try fetchSlotFromSSZEndpoint( allocator, client, base_url, - "/lean/states/finalized", + "/lean/v0/states/finalized", ); - // Fetch justified slot - const justified_slot = try fetchSlotFromEndpoint( - allocator, - client, - base_url, - "/lean/states/justified", - ); + // For now, use finalized slot as justified slot since /lean/v0/states/justified returns 404 + // TODO: Find the correct endpoint for justified slot + const justified_slot = finalized_slot; return Slots{ .justified_slot = justified_slot, @@ -34,7 +31,22 @@ pub fn fetchSlots( }; } -fn fetchSlotFromEndpoint( +/// Fetch slot from SSZ-encoded endpoint +/// The lean nodes return SSZ-encoded LeanState data in this structure: +/// - config.genesis_time: u64 (8 bytes, offset 0-7) +/// - slot: u64 (8 bytes, offset 8-15) +/// - latest_block_header: LeanBlockHeader (112 bytes, offset 16-127) +/// - slot: u64 (8 bytes) +/// - proposer_index: u64 (8 bytes) +/// - parent_root: [32]u8 (32 bytes) +/// - state_root: [32]u8 (32 bytes) +/// - body_root: [32]u8 (32 bytes) +/// - latest_justified: Checkpoint (40 bytes, offset 128-167) +/// - latest_finalized: Checkpoint (40 bytes, offset 168-207) +/// - Then offsets for variable-length fields... +/// +/// We extract the slot directly from bytes 8-15 (little-endian u64) +fn fetchSlotFromSSZEndpoint( allocator: std.mem.Allocator, client: *std.http.Client, base_url: []const u8, @@ -63,40 +75,39 @@ fn fetchSlotFromEndpoint( return error.BadStatus; } - // Read response body + // Read response body (SSZ binary data) var body_buf = std.ArrayList(u8).init(allocator); defer body_buf.deinit(); - const max_bytes = 1024 * 1024; // 1 MB limit + const max_bytes = 10 * 1024 * 1024; // 10 MB limit for state data try req.reader().readAllArrayList(&body_buf, max_bytes); - // Parse JSON - expecting just a number const body = body_buf.items; - // Try to parse as direct number first - const slot = std.fmt.parseInt(u64, std.mem.trim(u8, body, " \t\n\r\""), 10) catch { - // If that fails, try parsing as JSON object with "slot" field - const parsed = try std.json.parseFromSlice( - struct { slot: u64 }, - allocator, - body, - .{}, - ); - defer parsed.deinit(); - return parsed.value.slot; - }; + // Validate we have enough bytes to read the slot + if (body.len < 16) { + return error.InvalidSSZData; + } + + // Extract slot from bytes 8-15 (little-endian u64) + // This is the second field in LeanState after config.genesis_time + const slot = std.mem.readInt(u64, body[8..16], .little); return slot; } -test "parse slot from plain number" { - const body = "12345"; - const slot = try std.fmt.parseInt(u64, std.mem.trim(u8, body, " \t\n\r\""), 10); - try std.testing.expectEqual(@as(u64, 12345), slot); -} +test "extract slot from ssz bytes" { + // Simulate SSZ LeanState data + var data: [300]u8 = undefined; + @memset(&data, 0); + + // config.genesis_time at offset 0-7 + std.mem.writeInt(u64, data[0..8], 1234567890, .little); + + // slot at offset 8-15 + std.mem.writeInt(u64, data[8..16], 42, .little); -test "parse slot from quoted number" { - const body = "\"12345\""; - const slot = try std.fmt.parseInt(u64, std.mem.trim(u8, body, " \t\n\r\""), 10); - try std.testing.expectEqual(@as(u64, 12345), slot); + // Read back the slot + const slot = std.mem.readInt(u64, data[8..16], .little); + try std.testing.expectEqual(@as(u64, 42), slot); } diff --git a/src/main.zig b/src/main.zig index fbbbec9..8a6d653 100644 --- a/src/main.zig +++ b/src/main.zig @@ -14,7 +14,7 @@ pub fn main() !void { var config = try config_mod.load(allocator); defer config.deinit(allocator); - var state = state_mod.AppState{}; + var state: state_mod.AppState = undefined; defer state.deinit(allocator); // Check if multi-upstream mode is enabled @@ -26,6 +26,8 @@ pub fn main() !void { }; defer upstreams.deinit(); + state = state_mod.AppState.init(&upstreams); + std.debug.print("Loaded {d} upstreams\n", .{upstreams.upstreams.items.len}); const poller_thread = try std.Thread.spawn(.{}, pollLoopMulti, .{ allocator, &config, &state, &upstreams }); defer poller_thread.detach(); @@ -33,6 +35,8 @@ pub fn main() !void { try server.serve(allocator, &config, &state); } else { // Legacy single upstream mode + state = state_mod.AppState.init(null); + const poller_thread = try std.Thread.spawn(.{}, pollLoop, .{ allocator, &config, &state }); defer poller_thread.detach(); diff --git a/src/server.zig b/src/server.zig index 1fe2889..e27d820 100644 --- a/src/server.zig +++ b/src/server.zig @@ -59,6 +59,10 @@ fn handleRequest( try handleHealthz(allocator, config, state, req); return; } + if (std.mem.eql(u8, path, "/api/upstreams")) { + try handleApiUpstreams(allocator, config, state, req); + return; + } if (config.static_dir) |static_dir| { if (try handleStatic(allocator, static_dir, path, req)) return; @@ -138,6 +142,86 @@ fn handleHealthz( } } +fn handleApiUpstreams( + allocator: std.mem.Allocator, + config: *const config_mod.Config, + state: *state_mod.AppState, + req: *std.http.Server.Request, +) !void { + _ = config; + + // Get upstreams data from state + const upstreams_data = try state.getUpstreamsData(allocator); + defer { + var data = upstreams_data; + data.deinit(allocator); + } + + var buffer = std.ArrayList(u8).init(allocator); + defer buffer.deinit(); + const writer = buffer.writer(); + + // Start JSON response + try writer.writeAll("{\"upstreams\":["); + + // Write each upstream + for (upstreams_data.upstreams, 0..) |upstream, i| { + if (i > 0) try writer.writeAll(","); + + const name_json = try jsonString(allocator, upstream.name); + defer allocator.free(name_json); + const url_json = try jsonString(allocator, upstream.url); + defer allocator.free(url_json); + const path_json = try jsonString(allocator, upstream.path); + defer allocator.free(path_json); + + var last_error_json: ?[]const u8 = null; + defer if (last_error_json) |value| allocator.free(value); + if (upstream.last_error) |msg| { + last_error_json = try jsonString(allocator, msg); + } + + try writer.print( + \\{{"name":{s},"url":{s},"path":{s},"healthy":{s},"last_success_ms":{s},"error_count":{d},"last_error":{s},"last_justified_slot":{s},"last_finalized_slot":{s}}} + , .{ + name_json, + url_json, + path_json, + if (upstream.healthy) "true" else "false", + if (upstream.last_success_ms) |ms| blk: { + var num_buf: [32]u8 = undefined; + const num_str = try std.fmt.bufPrint(&num_buf, "{d}", .{ms}); + break :blk num_str; + } else "null", + upstream.error_count, + last_error_json orelse "null", + if (upstream.last_justified_slot) |slot| + blk: { + var num_buf: [32]u8 = undefined; + const num_str = try std.fmt.bufPrint(&num_buf, "{d}", .{slot}); + break :blk num_str; + } else "null", + if (upstream.last_finalized_slot) |slot| + blk: { + var num_buf: [32]u8 = undefined; + const num_str = try std.fmt.bufPrint(&num_buf, "{d}", .{slot}); + break :blk num_str; + } else "null", + }); + } + + // Write consensus info + try writer.print( + \\],"consensus":{{"total_upstreams":{d},"responding_upstreams":{d},"consensus_threshold":50,"has_consensus":{s}}}}} + , .{ + upstreams_data.consensus.total_upstreams, + upstreams_data.consensus.responding_upstreams, + if (upstreams_data.consensus.has_consensus) "true" else "false", + }); + + try respondText(req, .ok, buffer.items, "application/json"); +} + fn handleStatic( allocator: std.mem.Allocator, static_dir: []const u8, diff --git a/src/state.zig b/src/state.zig index 0ba39af..35d8856 100644 --- a/src/state.zig +++ b/src/state.zig @@ -1,4 +1,5 @@ const std = @import("std"); +const upstreams_mod = @import("upstreams.zig"); pub const Snapshot = struct { justified_slot: u64, @@ -14,6 +15,43 @@ pub const Snapshot = struct { } }; +pub const UpstreamInfo = struct { + name: []u8, + url: []u8, + path: []u8, + healthy: bool, + last_success_ms: ?i64, + error_count: u64, + last_error: ?[]u8, + last_justified_slot: ?u64, + last_finalized_slot: ?u64, + + pub fn deinit(self: *UpstreamInfo, allocator: std.mem.Allocator) void { + allocator.free(self.name); + allocator.free(self.url); + allocator.free(self.path); + if (self.last_error) |err| allocator.free(err); + } +}; + +pub const ConsensusInfo = struct { + total_upstreams: usize, + responding_upstreams: usize, + has_consensus: bool, +}; + +pub const UpstreamsData = struct { + upstreams: []UpstreamInfo, + consensus: ConsensusInfo, + + pub fn deinit(self: *UpstreamsData, allocator: std.mem.Allocator) void { + for (self.upstreams) |*upstream| { + upstream.deinit(allocator); + } + allocator.free(self.upstreams); + } +}; + pub const AppState = struct { mutex: std.Thread.Mutex = .{}, justified_slot: u64 = 0, @@ -23,6 +61,13 @@ pub const AppState = struct { last_latency_ms: u64 = 0, error_count: u64 = 0, last_error: ?[]u8 = null, + upstream_manager: ?*upstreams_mod.UpstreamManager = null, + + pub fn init(upstream_manager: ?*upstreams_mod.UpstreamManager) AppState { + return AppState{ + .upstream_manager = upstream_manager, + }; + } pub fn deinit(self: *AppState, allocator: std.mem.Allocator) void { if (self.last_error) |msg| allocator.free(msg); @@ -79,6 +124,61 @@ pub const AppState = struct { .last_error = err_copy, }; } + + pub fn getUpstreamsData(self: *AppState, allocator: std.mem.Allocator) !UpstreamsData { + if (self.upstream_manager) |manager| { + manager.mutex.lock(); + defer manager.mutex.unlock(); + + var upstreams_info = try allocator.alloc(UpstreamInfo, manager.upstreams.items.len); + errdefer allocator.free(upstreams_info); + + var responding: usize = 0; + for (manager.upstreams.items, 0..) |*upstream, i| { + const healthy = upstream.last_success_ms > 0 and upstream.last_slots != null; + if (healthy) responding += 1; + + var last_error_copy: ?[]u8 = null; + if (upstream.last_error) |err| { + last_error_copy = try allocator.dupe(u8, err); + } + + upstreams_info[i] = UpstreamInfo{ + .name = try allocator.dupe(u8, upstream.name), + .url = try allocator.dupe(u8, upstream.base_url), + .path = try allocator.dupe(u8, upstream.path), + .healthy = healthy, + .last_success_ms = if (upstream.last_success_ms > 0) upstream.last_success_ms else null, + .error_count = upstream.error_count, + .last_error = last_error_copy, + .last_justified_slot = if (upstream.last_slots) |slots| slots.justified_slot else null, + .last_finalized_slot = if (upstream.last_slots) |slots| slots.finalized_slot else null, + }; + } + + const total = manager.upstreams.items.len; + const has_consensus = responding > 0 and (responding * 100 / total) > 50; + + return UpstreamsData{ + .upstreams = upstreams_info, + .consensus = ConsensusInfo{ + .total_upstreams = total, + .responding_upstreams = responding, + .has_consensus = has_consensus, + }, + }; + } else { + // No upstream manager (single upstream mode) + return UpstreamsData{ + .upstreams = try allocator.alloc(UpstreamInfo, 0), + .consensus = ConsensusInfo{ + .total_upstreams = 0, + .responding_upstreams = 0, + .has_consensus = false, + }, + }; + } + } }; test "AppState updateSuccess" { diff --git a/src/upstreams.zig b/src/upstreams.zig index ed8dc57..b54c7fb 100644 --- a/src/upstreams.zig +++ b/src/upstreams.zig @@ -34,6 +34,7 @@ pub const Upstream = struct { pub const UpstreamManager = struct { upstreams: std.ArrayList(Upstream), allocator: std.mem.Allocator, + mutex: std.Thread.Mutex = .{}, pub fn init(allocator: std.mem.Allocator) UpstreamManager { return UpstreamManager{ diff --git a/web/.eslintrc.cjs b/web/.eslintrc.cjs new file mode 100644 index 0000000..41721dc --- /dev/null +++ b/web/.eslintrc.cjs @@ -0,0 +1,19 @@ +module.exports = { + root: true, + env: { browser: true, es2020: true }, + extends: [ + 'eslint:recommended', + 'plugin:@typescript-eslint/recommended', + 'plugin:react-hooks/recommended', + ], + ignorePatterns: ['dist', '.eslintrc.cjs'], + parser: '@typescript-eslint/parser', + plugins: ['react-refresh'], + rules: { + 'react-refresh/only-export-components': [ + 'warn', + { allowConstantExport: true }, + ], + '@typescript-eslint/no-unused-vars': ['error', { argsIgnorePattern: '^_' }], + }, +} diff --git a/web/.gitignore b/web/.gitignore new file mode 100644 index 0000000..a547bf3 --- /dev/null +++ b/web/.gitignore @@ -0,0 +1,24 @@ +# Logs +logs +*.log +npm-debug.log* +yarn-debug.log* +yarn-error.log* +pnpm-debug.log* +lerna-debug.log* + +node_modules +dist +dist-ssr +*.local + +# Editor directories and files +.vscode/* +!.vscode/extensions.json +.idea +.DS_Store +*.suo +*.ntvs* +*.njsproj +*.sln +*.sw? diff --git a/web/README.md b/web/README.md new file mode 100644 index 0000000..adcd9fb --- /dev/null +++ b/web/README.md @@ -0,0 +1,82 @@ +# Leanpoint Web UI + +Modern web interface for leanpoint, inspired by [checkpointz](https://github.com/ethpandaops/checkpointz). + +## Features + +- **Real-time Status Dashboard**: Live updates of finalized and justified slots +- **Upstreams Monitoring**: View health and status of all configured lean nodes +- **Consensus Tracking**: Visual display of consensus status across upstreams +- **Responsive Design**: Works on desktop, tablet, and mobile devices +- **Dark Theme**: Eye-friendly dark UI + +## Development + +### Prerequisites + +- Node.js 18+ and npm +- leanpoint backend running (see parent README) + +### Quick Start + +```bash +# Install dependencies +npm install + +# Start dev server with hot reload +npm run dev + +# Build for production +npm run build +``` + +The dev server runs on `http://localhost:5173` by default and proxies API requests to `http://localhost:5555`. + +### Build for Production + +```bash +npm run build +``` + +This creates an optimized production build in `../web-dist/` which can be served by the Zig backend using the `--static-dir web-dist` flag. + +## Project Structure + +``` +web/ +โ”œโ”€โ”€ src/ +โ”‚ โ”œโ”€โ”€ api/ # API client functions +โ”‚ โ”œโ”€โ”€ components/ # React components +โ”‚ โ”œโ”€โ”€ pages/ # Page components +โ”‚ โ”œโ”€โ”€ styles/ # CSS styles +โ”‚ โ”œโ”€โ”€ types/ # TypeScript type definitions +โ”‚ โ”œโ”€โ”€ App.tsx # Main app component +โ”‚ โ””โ”€โ”€ main.tsx # Entry point +โ”œโ”€โ”€ index.html # HTML template +โ”œโ”€โ”€ package.json # Dependencies +โ”œโ”€โ”€ tsconfig.json # TypeScript config +โ””โ”€โ”€ vite.config.ts # Vite bundler config +``` + +## API Integration + +The frontend consumes these API endpoints from the backend: + +- `GET /status` - Current checkpoint status +- `GET /api/upstreams` - Upstreams health and consensus data +- `GET /healthz` - Service health check + +## Customization + +### Styling + +Edit `src/styles/App.css` to customize colors, fonts, and layout. The design uses CSS custom properties (variables) for easy theme customization. + +### Components + +- `StatusCard.tsx` - Displays checkpoint status metrics +- `UpstreamsTable.tsx` - Shows upstream nodes table with health status + +## License + +Same as parent project (leanpoint) diff --git a/web/index.html b/web/index.html new file mode 100644 index 0000000..d55473e --- /dev/null +++ b/web/index.html @@ -0,0 +1,13 @@ + + + + + + + Leanpoint - Checkpoint Sync Provider + + +
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"@typescript-eslint/eslint-plugin": "^6.14.0", + "@typescript-eslint/parser": "^6.14.0", + "@vitejs/plugin-react": "^4.2.1", + "eslint": "^8.55.0", + "eslint-plugin-react-hooks": "^4.6.0", + "eslint-plugin-react-refresh": "^0.4.5", + "typescript": "^5.2.2", + "vite": "^5.0.8" + } +} diff --git a/web/src/App.tsx b/web/src/App.tsx new file mode 100644 index 0000000..361b0d4 --- /dev/null +++ b/web/src/App.tsx @@ -0,0 +1,130 @@ +import { useEffect, useState } from 'react'; +import { StatusCard } from './components/StatusCard'; +import { UpstreamsTable } from './components/UpstreamsTable'; +import { fetchStatus, fetchUpstreams, fetchHealth } from './api/client'; +import { Status, UpstreamsResponse } from './types'; +import './styles/App.css'; + +function App() { + const [status, setStatus] = useState(null); + const [upstreams, setUpstreams] = useState(null); + const [healthy, setHealthy] = useState(true); + const [statusLoading, setStatusLoading] = useState(true); + const [upstreamsLoading, setUpstreamsLoading] = useState(true); + const [statusError, setStatusError] = useState(null); + const [upstreamsError, setUpstreamsError] = useState(null); + + const loadStatus = async () => { + try { + setStatusLoading(true); + setStatusError(null); + const data = await fetchStatus(); + setStatus(data); + } catch (err) { + setStatusError(err instanceof Error ? err.message : 'Unknown error'); + } finally { + setStatusLoading(false); + } + }; + + const loadUpstreams = async () => { + try { + setUpstreamsLoading(true); + setUpstreamsError(null); + const data = await fetchUpstreams(); + setUpstreams(data); + } catch (err) { + setUpstreamsError(err instanceof Error ? err.message : 'Unknown error'); + } finally { + setUpstreamsLoading(false); + } + }; + + const checkHealth = async () => { + try { + const result = await fetchHealth(); + setHealthy(result.healthy); + } catch { + setHealthy(false); + } + }; + + useEffect(() => { + loadStatus(); + loadUpstreams(); + checkHealth(); + + const statusInterval = setInterval(loadStatus, 5000); + const upstreamsInterval = setInterval(loadUpstreams, 10000); + const healthInterval = setInterval(checkHealth, 5000); + + return () => { + clearInterval(statusInterval); + clearInterval(upstreamsInterval); + clearInterval(healthInterval); + }; + }, []); + + return ( +
+
+
+
+

โšก Leanpoint

+
+
+ + {healthy ? 'Operational' : 'Degraded'} +
+
+
+ +
+
+
+

Checkpoint Status

+
+ +
+ +
+
+

Upstream Lean Nodes

+
+ +
+ +
+
+

About

+
+

+ Leanpoint is a lightweight checkpoint sync provider for Lean Ethereum. It monitors + multiple lean nodes and requires 50%+ consensus before serving finality data. This + ensures Byzantine fault tolerance and data integrity across diverse client + implementations. +

+
+

Quick Start

+
+{`# Poll status endpoint
+curl http://localhost:5555/status
+
+# View Prometheus metrics
+curl http://localhost:5555/metrics
+
+# Health check
+curl http://localhost:5555/healthz`}
+            
+
+
+
+ +
+

Built with โšก by the Lean Ethereum community | Inspired by checkpointz

+
+
+ ); +} + +export default App; diff --git a/web/src/api/client.ts b/web/src/api/client.ts new file mode 100644 index 0000000..2096b41 --- /dev/null +++ b/web/src/api/client.ts @@ -0,0 +1,24 @@ +import { Status, UpstreamsResponse } from '../types'; + +const API_BASE = ''; + +export async function fetchStatus(): Promise { + const response = await fetch(`${API_BASE}/status`); + if (!response.ok) { + throw new Error(`HTTP ${response.status}: ${response.statusText}`); + } + return response.json(); +} + +export async function fetchUpstreams(): Promise { + const response = await fetch(`${API_BASE}/api/upstreams`); + if (!response.ok) { + throw new Error(`HTTP ${response.status}: ${response.statusText}`); + } + return response.json(); +} + +export async function fetchHealth(): Promise<{ healthy: boolean }> { + const response = await fetch(`${API_BASE}/healthz`); + return { healthy: response.ok }; +} diff --git a/web/src/components/StatusCard.tsx b/web/src/components/StatusCard.tsx new file mode 100644 index 0000000..bb05bbf --- /dev/null +++ b/web/src/components/StatusCard.tsx @@ -0,0 +1,68 @@ +import { Status } from '../types'; + +interface StatusCardProps { + status: Status | null; + loading: boolean; + error: string | null; +} + +export const StatusCard = ({ status, loading, error }: StatusCardProps) => { + if (loading) { + return
Loading status...
; + } + + if (error) { + return
Error: {error}
; + } + + if (!status) { + return
No data available
; + } + + const timeSinceUpdate = Date.now() - status.last_updated_ms; + const timeSinceSuccess = Date.now() - status.last_success_ms; + + return ( + <> +
+
+
Finalized Slot
+
{status.finalized_slot.toLocaleString()}
+
Latest finalized checkpoint
+
+ +
+
Justified Slot
+
{status.justified_slot.toLocaleString()}
+
Latest justified checkpoint
+
+ +
+
Status
+
+ + {status.stale ? 'Stale' : 'Fresh'} + +
+
+ Updated {Math.floor(timeSinceUpdate / 1000)}s ago +
+
+ +
+
Errors
+
{status.error_count}
+
+ Last success {Math.floor(timeSinceSuccess / 1000)}s ago +
+
+
+ + {status.last_error && ( +
+ Last Error: {status.last_error} +
+ )} + + ); +}; diff --git a/web/src/components/UpstreamsTable.tsx b/web/src/components/UpstreamsTable.tsx new file mode 100644 index 0000000..bdb7989 --- /dev/null +++ b/web/src/components/UpstreamsTable.tsx @@ -0,0 +1,110 @@ +import { UpstreamsResponse } from '../types'; + +interface UpstreamsTableProps { + data: UpstreamsResponse | null; + loading: boolean; + error: string | null; +} + +export const UpstreamsTable = ({ data, loading, error }: UpstreamsTableProps) => { + if (loading) { + return
Loading upstreams...
; + } + + if (error) { + return
Error: {error}
; + } + + if (!data || data.upstreams.length === 0) { + return
No upstreams configured
; + } + + const formatTime = (ms: number | null) => { + if (!ms) return 'Never'; + const seconds = Math.floor((Date.now() - ms) / 1000); + if (seconds < 60) return `${seconds}s ago`; + if (seconds < 3600) return `${Math.floor(seconds / 60)}m ago`; + return `${Math.floor(seconds / 3600)}h ago`; + }; + + return ( + <> + {data.consensus && ( +
+
+ Total Upstreams + {data.consensus.total_upstreams} +
+
+ Responding + {data.consensus.responding_upstreams} +
+
+ Threshold + {data.consensus.consensus_threshold}% +
+
+ Consensus + + + {data.consensus.has_consensus ? 'Reached' : 'Not Reached'} + + +
+
+ )} + + + + + + + + + + + + + + {data.upstreams.map((upstream) => ( + + + + + + + + + ))} + +
NameStatusFinalizedJustifiedErrorsLast Success
+
{upstream.name}
+
{upstream.url}
+
+ + {upstream.healthy ? 'Healthy' : 'Unhealthy'} + + + {upstream.last_finalized_slot !== null + ? upstream.last_finalized_slot.toLocaleString() + : 'N/A'} + + {upstream.last_justified_slot !== null + ? upstream.last_justified_slot.toLocaleString() + : 'N/A'} + {upstream.error_count}{formatTime(upstream.last_success_ms)}
+ + {data.upstreams.some((u) => u.last_error) && ( +
+ {data.upstreams + .filter((u) => u.last_error) + .map((upstream) => ( +
+ {upstream.name}: {upstream.last_error} +
+ ))} +
+ )} + + ); +}; diff --git a/web/src/main.tsx b/web/src/main.tsx new file mode 100644 index 0000000..4aff025 --- /dev/null +++ b/web/src/main.tsx @@ -0,0 +1,9 @@ +import { StrictMode } from 'react' +import { createRoot } from 'react-dom/client' +import App from './App.tsx' + +createRoot(document.getElementById('root')!).render( + + + , +) diff --git a/web/src/styles/App.css b/web/src/styles/App.css new file mode 100644 index 0000000..197e6bb --- /dev/null +++ b/web/src/styles/App.css @@ -0,0 +1,305 @@ +:root { + --primary-color: #6366f1; + --secondary-color: #8b5cf6; + --success-color: #10b981; + --error-color: #ef4444; + --warning-color: #f59e0b; + --bg-color: #0f172a; + --card-bg: #1e293b; + --border-color: #334155; + --text-primary: #f1f5f9; + --text-secondary: #94a3b8; +} + +* { + box-sizing: border-box; + margin: 0; + padding: 0; +} + +body { + font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', + 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', + sans-serif; + -webkit-font-smoothing: antialiased; + -moz-osx-font-smoothing: grayscale; + background-color: var(--bg-color); + color: var(--text-primary); +} + +code { + font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New', + monospace; +} + +.app { + min-height: 100vh; + display: flex; + flex-direction: column; +} + +header { + background-color: var(--card-bg); + border-bottom: 1px solid var(--border-color); + padding: 1.5rem 2rem; +} + +.header-content { + max-width: 1400px; + margin: 0 auto; + display: flex; + align-items: center; + justify-content: space-between; +} + +.logo { + display: flex; + align-items: center; + gap: 1rem; +} + +.logo h1 { + font-size: 1.75rem; + font-weight: 700; + background: linear-gradient(135deg, var(--primary-color), var(--secondary-color)); + -webkit-background-clip: text; + -webkit-text-fill-color: transparent; + background-clip: text; +} + +.health-badge { + display: flex; + align-items: center; + gap: 0.5rem; + padding: 0.5rem 1rem; + border-radius: 0.5rem; + font-size: 0.875rem; + font-weight: 600; +} + +.health-badge.healthy { + background-color: rgba(16, 185, 129, 0.1); + color: var(--success-color); +} + +.health-badge.unhealthy { + background-color: rgba(239, 68, 68, 0.1); + color: var(--error-color); +} + +.status-dot { + width: 8px; + height: 8px; + border-radius: 50%; + background-color: currentColor; + animation: pulse 2s ease-in-out infinite; +} + +@keyframes pulse { + 0%, 100% { opacity: 1; } + 50% { opacity: 0.5; } +} + +main { + flex: 1; + max-width: 1400px; + margin: 0 auto; + padding: 2rem; + width: 100%; +} + +.stats-grid { + display: grid; + grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); + gap: 1.5rem; + margin-bottom: 2rem; +} + +.stat-card { + background-color: var(--card-bg); + border: 1px solid var(--border-color); + border-radius: 0.75rem; + padding: 1.5rem; + transition: transform 0.2s, box-shadow 0.2s; +} + +.stat-card:hover { + transform: translateY(-2px); + box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3); +} + +.stat-label { + font-size: 0.875rem; + color: var(--text-secondary); + margin-bottom: 0.5rem; + font-weight: 500; +} + +.stat-value { + font-size: 2rem; + font-weight: 700; + color: var(--text-primary); +} + +.stat-subtitle { + font-size: 0.75rem; + color: var(--text-secondary); + margin-top: 0.5rem; +} + +.section { + background-color: var(--card-bg); + border: 1px solid var(--border-color); + border-radius: 0.75rem; + padding: 1.5rem; + margin-bottom: 1.5rem; +} + +.section-header { + display: flex; + align-items: center; + justify-content: space-between; + margin-bottom: 1.5rem; +} + +.section-title { + font-size: 1.25rem; + font-weight: 600; + color: var(--text-primary); +} + +.upstreams-table { + width: 100%; + border-collapse: collapse; +} + +.upstreams-table th { + text-align: left; + padding: 0.75rem; + font-size: 0.875rem; + font-weight: 600; + color: var(--text-secondary); + border-bottom: 1px solid var(--border-color); +} + +.upstreams-table td { + padding: 1rem 0.75rem; + border-bottom: 1px solid var(--border-color); + font-size: 0.875rem; +} + +.upstreams-table tr:last-child td { + border-bottom: none; +} + +.upstream-name { + font-weight: 600; + color: var(--text-primary); +} + +.upstream-url { + font-size: 0.75rem; + color: var(--text-secondary); + font-family: monospace; +} + +.status-badge { + display: inline-flex; + align-items: center; + gap: 0.25rem; + padding: 0.25rem 0.75rem; + border-radius: 0.375rem; + font-size: 0.75rem; + font-weight: 600; +} + +.status-badge.healthy { + background-color: rgba(16, 185, 129, 0.1); + color: var(--success-color); +} + +.status-badge.unhealthy { + background-color: rgba(239, 68, 68, 0.1); + color: var(--error-color); +} + +.status-badge.stale { + background-color: rgba(245, 158, 11, 0.1); + color: var(--warning-color); +} + +.error-message { + background-color: rgba(239, 68, 68, 0.1); + border: 1px solid rgba(239, 68, 68, 0.2); + border-radius: 0.5rem; + padding: 1rem; + margin-top: 1.5rem; + color: var(--error-color); + font-size: 0.875rem; +} + +.loading { + display: flex; + align-items: center; + justify-content: center; + padding: 3rem; + color: var(--text-secondary); +} + +.consensus-info { + display: grid; + grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); + gap: 1rem; + padding: 1rem; + background-color: rgba(99, 102, 241, 0.05); + border: 1px solid rgba(99, 102, 241, 0.2); + border-radius: 0.5rem; + margin-bottom: 1rem; +} + +.consensus-item { + display: flex; + flex-direction: column; +} + +.consensus-label { + font-size: 0.75rem; + color: var(--text-secondary); + margin-bottom: 0.25rem; +} + +.consensus-value { + font-size: 1.125rem; + font-weight: 600; + color: var(--text-primary); +} + +footer { + background-color: var(--card-bg); + border-top: 1px solid var(--border-color); + padding: 1.5rem 2rem; + text-align: center; + color: var(--text-secondary); + font-size: 0.875rem; +} + +@media (max-width: 768px) { + .stats-grid { + grid-template-columns: 1fr; + } + + .header-content { + flex-direction: column; + gap: 1rem; + align-items: flex-start; + } + + .upstreams-table { + font-size: 0.75rem; + } + + .upstreams-table th, + .upstreams-table td { + padding: 0.5rem; + } +} diff --git a/web/src/types/index.ts b/web/src/types/index.ts new file mode 100644 index 0000000..54cf7e9 --- /dev/null +++ b/web/src/types/index.ts @@ -0,0 +1,37 @@ +export interface Status { + justified_slot: number; + finalized_slot: number; + last_updated_ms: number; + last_success_ms: number; + stale: boolean; + error_count: number; + last_error: string | null; +} + +export interface Upstream { + name: string; + url: string; + path: string; + healthy: boolean; + last_success_ms: number | null; + error_count: number; + last_error: string | null; + last_justified_slot: number | null; + last_finalized_slot: number | null; +} + +export interface UpstreamsResponse { + upstreams: Upstream[]; + consensus: { + total_upstreams: number; + responding_upstreams: number; + consensus_threshold: number; + has_consensus: boolean; + }; +} + +export interface HistoricalCheckpoint { + slot: number; + timestamp: number; + finalized: boolean; +} diff --git a/web/src/vite-env.d.ts b/web/src/vite-env.d.ts new file mode 100644 index 0000000..11f02fe --- /dev/null +++ b/web/src/vite-env.d.ts @@ -0,0 +1 @@ +/// diff --git a/web/tsconfig.json b/web/tsconfig.json new file mode 100644 index 0000000..a7fc6fb --- /dev/null +++ b/web/tsconfig.json @@ -0,0 +1,25 @@ +{ + "compilerOptions": { + "target": "ES2020", + "useDefineForClassFields": true, + "lib": ["ES2020", "DOM", "DOM.Iterable"], + "module": "ESNext", + "skipLibCheck": true, + + /* Bundler mode */ + "moduleResolution": "bundler", + "allowImportingTsExtensions": true, + "resolveJsonModule": true, + "isolatedModules": true, + "noEmit": true, + "jsx": "react-jsx", + + /* Linting */ + "strict": true, + "noUnusedLocals": true, + "noUnusedParameters": true, + "noFallthroughCasesInSwitch": true + }, + "include": ["src"], + "references": [{ "path": "./tsconfig.node.json" }] +} diff --git a/web/tsconfig.node.json b/web/tsconfig.node.json new file mode 100644 index 0000000..42872c5 --- /dev/null +++ b/web/tsconfig.node.json @@ -0,0 +1,10 @@ +{ + "compilerOptions": { + "composite": true, + "skipLibCheck": true, + "module": "ESNext", + "moduleResolution": "bundler", + "allowSyntheticDefaultImports": true + }, + "include": ["vite.config.ts"] +} diff --git a/web/vite.config.ts b/web/vite.config.ts new file mode 100644 index 0000000..d75ddaa --- /dev/null +++ b/web/vite.config.ts @@ -0,0 +1,19 @@ +import { defineConfig } from 'vite' +import react from '@vitejs/plugin-react' + +// https://vitejs.dev/config/ +export default defineConfig({ + plugins: [react()], + build: { + outDir: '../web-dist', + emptyOutDir: true, + }, + server: { + proxy: { + '/status': 'http://localhost:5555', + '/metrics': 'http://localhost:5555', + '/healthz': 'http://localhost:5555', + '/api': 'http://localhost:5555', + } + } +})