ETHウォレット監視器

• •Discord Bot Token または Webhook
• •ターゲットAPIの認証情報が必要な場合あり

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      "name": "スケジュールトリガー",
      "type": "n8n-nodes-base.scheduleTrigger",
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      "parameters": {
        "rule": {
          "interval": [
            {
              "field": "cronExpression",
              "expression": "45 7,17 * * *"
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      "typeVersion": 1.2
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      "name": "HTTP Request",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
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      "parameters": {
        "url": "=https://api.etherscan.io/v2/api?chainid=1&module=account&action=tokentx&address=YOUR_WALLET_HERE&sort=asc&apikey=YOUR_KEY_HERE",
        "method": "=GET",
        "options": {}
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      "parameters": {
        "jsCode": "// Input: JSON response from Etherscan tokentx endpoint\nconst wallet = \"YOUR_WALLET_ADDRESS\".toLowerCase();\nconst txs = items[0].json.result;  // Assuming the HTTP node passed the Etherscan JSON\n\n// Reduce transactions into balances\nconst balances = {};\n\nfor (const tx of txs) {\n  const symbol = tx.tokenSymbol;\n  const decimals = parseInt(tx.tokenDecimal);\n  const value = BigInt(tx.value);\n\n  // Initialize token entry if missing\n  if (!balances[symbol]) {\n    balances[symbol] = {\n      contract: tx.contractAddress,\n      tokenName: tx.tokenName,\n      tokenSymbol: tx.tokenSymbol,\n      decimals: decimals,\n      raw: BigInt(0)\n    };\n  }\n\n  // If wallet is the recipient => add\n  if (tx.to.toLowerCase() === wallet) {\n    balances[symbol].raw += value;\n  }\n\n  // If wallet is the sender => subtract\n  if (tx.from.toLowerCase() === wallet) {\n    balances[symbol].raw -= value;\n  }\n}\n\n// Convert raw balances to human-readable\nconst results = Object.values(balances).map(t => {\n  return {\n    token: t.tokenSymbol,\n    contract: t.contract,\n    amount: Number(t.raw) / (10 ** t.decimals),\n    decimals: t.decimals\n  };\n});\n\n// Return in N8N format\nreturn results.map(r => ({ json: r }));\n"
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      "parameters": {
        "jsCode": "const balances = items.map(i => i.json);\n\n// Join all contract addresses into a comma-separated string\nconst contracts = balances.map(b => b.contract).join(',');\n\n// Pass both balances and contracts downstream\nreturn [\n  {\n    json: {\n      balances,\n      contracts\n    }\n  }\n];\n"
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      "name": "HTTP Request1",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
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      "parameters": {
        "url": "=https://api.coingecko.com/api/v3/simple/token_price/ethereum?contract_addresses={{ $('Code in JavaScript1').item.json.contracts }}&vs_currencies=usd",
        "options": {},
        "jsonHeaders": "{\n  \"accept\": \"application/json\",\n  \"x-cg-demo-api-key\": \"COIN_GECKO_KEY_HERE\"\n}\n",
        "sendHeaders": true,
        "specifyHeaders": "json"
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      "typeVersion": 4.2
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      "position": [
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      "parameters": {
        "jsCode": "// ---- Pull inputs safely ----\nconst erc20 = $node[\"Code in JavaScript1\"].json?.balances ?? [];\nconst eth   = $node[\"Code ETH Balance\"].json ?? null;\n\nconst cgTokenPrices = $node[\"HTTP Request1\"].json ?? {}; // { [contract]: { usd } }\nconst ethUsd        = $node[\"HTTP Request ETH Price\"].json?.ethereum?.usd ?? 0;\n\n// ---- Combine balances (ETH + ERC-20) ----\nconst balances = eth ? [eth, ...erc20] : [...erc20];\n\n// ---- Build a single price map (token prices + ETH) ----\nconst priceMap = { ...cgTokenPrices };\n// Give ETH a fake \"contract\" key so it matches by contract like the tokens\nconst ETH_KEY = \"0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee\";\npriceMap[ETH_KEY] = { usd: ethUsd };\n\n// ---- Enrich balances with prices ----\nconst enriched = balances.map(b => {\n  const key = (b.contract || \"\").toLowerCase();\n  const usdPrice = priceMap[key]?.usd ?? 0;\n  const amount = Number(b.amount || 0);       // already human-readable amounts\n  const usdValue = amount * usdPrice;\n\n  return {\n    token: b.token,\n    contract: b.contract,\n    amount,\n    usdPrice,\n    usdValue,\n  };\n}).sort((a, b) => b.usdValue - a.usdValue);\n\n// ---- Totals & quick diagnostics ----\nconst totalUsd = enriched.reduce((s, t) => s + (t.usdValue || 0), 0);\nconst ethLine  = enriched.find(t => t.token === \"ETH\");\nconst ethUsdValue = ethLine ? ethLine.usdValue : 0;\nconst restUsd = totalUsd - ethUsdValue;\n\n// ---- Discord message ----\nlet message = `**ETH Wallet Update 💰**\\n\\n`;\nmessage += `**Total Value:** $${totalUsd.toFixed(2)} USD\\n`;\nif (ethLine) {\n  message += `• ETH: ${ethLine.amount.toFixed(6)} @ $${(ethLine.usdPrice||0).toFixed(2)} = $${ethUsdValue.toFixed(2)}\\n`;\n  message += `• Other tokens (priced): $${restUsd.toFixed(2)}\\n\\n`;\n} else {\n  message += `• No ETH price/balance found\\n\\n`;\n}\n\nmessage += enriched\n  .filter(t => t.usdValue > 0.01)\n  .map(t => `${t.token}: $${t.usdValue.toFixed(2)} (px $${t.usdPrice.toFixed(6)})`)\n  .join(\"\\n\");\n\nreturn [{\n  json: {\n    totalUsd,\n    tokens: enriched,\n    discordMessage: message\n  }\n}];\n"
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      "name": "Discord",
      "type": "n8n-nodes-base.discord",
      "position": [
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      "webhookId": "be4e3eba-3fcc-4329-9ba4-4aaea73cdf70",
      "parameters": {
        "content": "={{ $json.discordMessage }}",
        "options": {},
        "authentication": "webhook"
      },
      "credentials": {
        "discordWebhookApi": {
          "id": "6S341y8tVCvOIO8r",
          "name": "All Ops Notis Discord Webhook"
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      "id": "f01b5fec-fdb8-42a5-9abf-6676a47ca321",
      "name": "HTTP Request ETH",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
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      "parameters": {
        "url": "https://api.etherscan.io/v2/api?chainid=1&module=account&action=balance&address=YOUR_WALLET_HERE&apikey=YOUR_KEY_HERE",
        "options": {}
      },
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      "name": "ETH残高コード",
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      "parameters": {
        "jsCode": "const wei = BigInt($node[\"HTTP Request ETH\"].json.result);\nconst eth = Number(wei) / 1e18;\n\nreturn [{\n  json: {\n    token: \"ETH\",\n    contract: \"0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee\", // dummy\n    amount: eth,\n    decimals: 18\n  }\n}];\n"
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      "name": "HTTP Request ETH Price",
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      "parameters": {
        "url": "https://api.coingecko.com/api/v3/simple/price?ids=ethereum&vs_currencies=usd",
        "options": {},
        "jsonHeaders": "{\n  \"accept\": \"application/json\",\n  \"x-cg-demo-api-key\": \"COIN_GEKCO_KEY_HERE\"\n}\n",
        "sendHeaders": true,
        "specifyHeaders": "json"
      },
      "typeVersion": 4.2
    },
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      "type": "n8n-nodes-base.stickyNote",
      "position": [
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      ],
      "parameters": {
        "height": 96,
        "content": "## Set Coin Gecko Keys Here"
      },
      "typeVersion": 1
    },
    {
      "id": "39647a8d-f10f-4cc2-aefe-1f53d304e59c",
      "name": "付箋1",
      "type": "n8n-nodes-base.stickyNote",
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        -240
      ],
      "parameters": {
        "height": 192,
        "content": "## Add Etherscan API Key to first 2 HTTP nodes. Add Wallet Address to Code Block as well."
      },
      "typeVersion": 1
    },
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      "parameters": {
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        "content": "## Daily ETH Wallet Balance sent to Discord. Currently you get two updates. One in the Morning and Evening."
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