Moniteur de blockchain

• •Token Bot Slack ou URL Webhook
• •Point de terminaison HTTP Webhook (généré automatiquement par n8n)

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        "content": "# 🔍 Simple Blockchain Monitor\n\n**Essential Setup:**\n- Real-time block monitoring\n- AI-powered data extraction\n- Smart risk detection\n- Instant alerts\n\n**Supported:**\n- Ethereum, Bitcoin, BSC, Polygon\n\n**Features:**\n✅ ScrapeGraphAI integration\n✅ High-value detection\n✅ Risk scoring\n✅ Slack alerts"
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        "jsCode": "// Simple blockchain data preparation\nconst input = $input.all()[0].json;\n\n// Basic normalization\nconst blockData = {\n  block_number: input.blockNumber || input.block_number || input.height,\n  blockchain: (input.blockchain || input.chain || 'ethereum').toLowerCase(),\n  timestamp: input.timestamp || Date.now(),\n  session_id: `block_${Date.now()}`\n};\n\n// Set explorer URL\nconst explorers = {\n  ethereum: `https://etherscan.io/block/${blockData.block_number}`,\n  bitcoin: `https://blockchair.com/bitcoin/block/${blockData.block_number}`,\n  bsc: `https://bscscan.com/block/${blockData.block_number}`,\n  polygon: `https://polygonscan.com/block/${blockData.block_number}`\n};\n\nblockData.explorer_url = explorers[blockData.blockchain] || explorers.ethereum;\n\nconsole.log(`Processing block ${blockData.block_number} on ${blockData.blockchain}`);\n\nreturn [{ json: blockData }];"
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        "content": "# Step 1: Webhook Input 🔗\n\nReceives blockchain data from external sources.\n\n**Input Sources:**\n- Blockchain nodes\n- Third-party APIs (Moralis, Alchemy)\n- Exchange webhooks\n\n**Data Expected:**\n- Block number/height\n- Blockchain identifier\n- Timestamp (optional)"
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    {
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      "name": "🤖 ScrapeGraphAI",
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        "userPrompt": "Extract transaction data from this blockchain explorer page. Return JSON with:\n\n**transactions**: Array of objects with:\n- hash: transaction ID\n- from: sender address  \n- to: receiver address\n- value_usd: USD amount (if available)\n- fee_usd: fee in USD\n- status: success/failed\n- is_contract: true if contract interaction\n\n**summary**:\n- total_transactions: count\n- total_volume_usd: sum of values\n- high_value_count: transactions > $10,000\n- failed_count: failed transactions\n\nFocus on accuracy and include only confirmed data.",
        "websiteUrl": "={{ $json.explorer_url }}"
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      "name": "🔧 Traiter les informations",
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        "content": "# Step 2: Data Processing 🔄\n\nNormalizes blockchain data for analysis.\n\n**Functions:**\n- Multi-chain format standardization\n- Explorer URL selection\n- Basic validation\n\n**Supported Chains:**\n- Ethereum, Bitcoin, BSC, Polygon"
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        "jsCode": "// Simple risk analysis\nconst blockData = $('Normalize Data').first().json;\nconst scrapedData = $input.all()[0].json;\n\n// Initialize analysis\nlet analysis = {\n  block_number: blockData.block_number,\n  blockchain: blockData.blockchain,\n  timestamp: new Date().toISOString(),\n  \n  // Basic stats\n  total_transactions: 0,\n  total_volume_usd: 0,\n  high_value_transactions: [],\n  failed_transactions: 0,\n  \n  // Risk assessment\n  risk_score: 0,\n  risk_level: 'low',\n  alerts: []\n};\n\n// Process scraped data\nif (scrapedData.transactions && Array.isArray(scrapedData.transactions)) {\n  analysis.total_transactions = scrapedData.transactions.length;\n  \n  scrapedData.transactions.forEach(tx => {\n    const value = parseFloat(tx.value_usd || 0);\n    analysis.total_volume_usd += value;\n    \n    // High-value detection\n    if (value > 10000) {\n      analysis.high_value_transactions.push({\n        hash: tx.hash,\n        value_usd: value,\n        from: tx.from,\n        to: tx.to\n      });\n    }\n    \n    // Failed transaction count\n    if (tx.status === 'failed') {\n      analysis.failed_transactions++;\n    }\n  });\n}\n\n// Use summary data if available\nif (scrapedData.summary) {\n  analysis.total_transactions = scrapedData.summary.total_transactions || analysis.total_transactions;\n  analysis.total_volume_usd = scrapedData.summary.total_volume_usd || analysis.total_volume_usd;\n  analysis.failed_transactions = scrapedData.summary.failed_count || analysis.failed_transactions;\n}\n\n// Simple risk scoring\nlet riskScore = 0;\n\n// High value risk\nriskScore += analysis.high_value_transactions.length * 15;\n\n// Volume risk\nif (analysis.total_volume_usd > 1000000) riskScore += 20;\nelse if (analysis.total_volume_usd > 100000) riskScore += 10;\n\n// Failure rate risk\nconst failureRate = analysis.total_transactions > 0 ? \n  analysis.failed_transactions / analysis.total_transactions : 0;\nif (failureRate > 0.1) riskScore += 15;\n\nanalysis.risk_score = Math.min(riskScore, 100);\n\n// Risk level determination\nif (analysis.risk_score >= 50) {\n  analysis.risk_level = 'high';\n} else if (analysis.risk_score >= 25) {\n  analysis.risk_level = 'medium';\n} else {\n  analysis.risk_level = 'low';\n}\n\n// Generate alerts\nif (analysis.risk_level === 'high') {\n  analysis.alerts.push(`High risk block: ${analysis.high_value_transactions.length} high-value transactions`);\n}\n\nif (analysis.high_value_transactions.length > 3) {\n  analysis.alerts.push(`Multiple high-value transactions detected`);\n}\n\nif (failureRate > 0.2) {\n  analysis.alerts.push(`High failure rate: ${Math.round(failureRate * 100)}%`);\n}\n\nconsole.log(`Analysis: ${analysis.total_transactions} txs, $${analysis.total_volume_usd.toLocaleString()}, Risk: ${analysis.risk_level}`);\n\nreturn [{ json: analysis }];"
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        "content": "# Step 3: AI Data Extraction 🤖\n\nScrapeGraphAI extracts transaction data.\n\n**Key Features:**\n- AI-powered understanding\n- Structured JSON output\n- Multi-explorer support\n- Error resilience\n\n**Extracted Data:**\n- Transaction details\n- USD values\n- High-value flags\n- Block summary"
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        "content": "# Step 4: Risk Analysis ⚡\n\nAnalyzes transactions for risk factors.\n\n**Risk Factors:**\n- High-value transactions (>$10k)\n- Large block volume (>$100k)\n- High failure rates (>10%)\n\n**Risk Levels:**\n- High: Score ≥ 50\n- Medium: Score ≥ 25\n- Low: Score < 25"
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      "name": "📱 Slack Alerte",
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        "content": "# Step 5: Risk Filtering 🚨\n\nFilters blocks that need attention.\n\n**Trigger Conditions:**\n- Risk level: medium or high\n- Any high-value transactions\n- High failure rates\n\n**Alert Routing:**\n- Sends to Slack for team visibility\n- Only triggers on significant events"
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      "name": "🔔 Informations d'alerte",
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      "parameters": {
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        "content": "# Step 6: Slack Alerts 📱\n\nSends formatted alerts to Slack.\n\n**Alert Content:**\n- Block and blockchain info\n- Risk level and score\n- Transaction statistics\n- High-value transaction list\n- Active alerts\n\n**Features:**\n- Rich formatting with emojis\n- Condensed but informative\n- Real-time delivery"
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      "name": "⚙️ Configuration",
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        "content": "## 🔧 Configuration\n\n**Required Setup:**\n1. ScrapeGraphAI API key\n2. Slack webhook/bot token\n3. Blockchain webhook URL\n\n**Customizable:**\n- High-value threshold ($10k)\n- Risk score thresholds\n- Slack channel ID\n- Supported blockchains\n\n**Simple & Effective:**\n- 6 essential nodes only\n- Fast execution\n- Easy maintenance\n- Clear alerting"
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