📧 Node-RED e-mail ノードガイド

[ { "id": "email_ex1_inject", "type": "inject", "name": "テスト送信", "props": [], "repeat": "", "wires": [["email_ex1_change"]] }, { "id": "email_ex1_change", "type": "change", "name": "件名・本文設定", "rules": [ { "t": "set", "p": "topic", "pt": "msg", "to": "Node-RED テストメール", "tot": "str" }, { "t": "set", "p": "payload", "pt": "msg", "to": "$join(['このメールはNode-REDから送信されたテストです。送信時刻: ', $now()])", "tot": "jsonata" } ], "wires": [["email_ex1_send"]] }, { "id": "email_ex1_send", "type": "e-mail", "name": "テストメール送信", "server": "smtp.gmail.com", "port": "465", "secure": true, "tls": true, "dname": "", "to": "your-email@example.com", "wires": [] } ]

[ { "id": "email_ex2_inject", "type": "inject", "name": "ランダム温度", "props": [{"p": "payload"}], "payload": "$floor($random() * 40 + 20)", "payloadType": "jsonata", "repeat": "10", "wires": [["email_ex2_switch"]] }, { "id": "email_ex2_switch", "type": "switch", "name": "50°C以上?", "property": "payload", "rules": [{"t": "gte", "v": "50", "vt": "num"}], "wires": [["email_ex2_func"]] }, { "id": "email_ex2_func", "type": "function", "name": "アラートメール作成", "func": "var lastSent = context.get('lastSent') || 0;\nvar now = Date.now();\nvar interval = 5 * 60 * 1000;\n\nif (now - lastSent > interval) {\n context.set('lastSent', now);\n var temp = msg.payload;\n msg.to = 'admin@example.com';\n msg.topic = '[ALERT] 温度異常: ' + temp + '°C';\n msg.payload = '

温度アラート

' +\n '

センサーの温度が閾値を超えました。

' +\n '

' +\n '
• 現在温度: ' + temp + '°C
' +\n '
• 閾値: 50°C
' +\n '
• 検知時刻: ' + new Date().toLocaleString('ja-JP') + '
' +\n '

' +\n '

---

このメールはNode-REDから自動送信されています。

';\n return msg;\n}\nreturn null;", "outputs": 1, "wires": [["email_ex2_send"]] }, { "id": "email_ex2_send", "type": "e-mail", "name": "アラート送信", "server": "smtp.gmail.com", "port": "465", "secure": true, "tls": true, "to": "admin@example.com", "wires": [] } ]

[ { "id": "email_ex3_in", "type": "e-mail in", "name": "コマンド受信", "protocol": "IMAP", "server": "imap.gmail.com", "port": "993", "secure": true, "useSSL": true, "disposition": "Read", "wires": [["email_ex3_switch"]] }, { "id": "email_ex3_switch", "type": "switch", "name": "コマンド判定", "property": "topic", "rules": [ {"t": "cont", "v": "STATUS", "vt": "str"}, {"t": "cont", "v": "REPORT", "vt": "str"} ], "checkall": "false", "wires": [["email_ex3_status"], ["email_ex3_report"]] }, { "id": "email_ex3_status", "type": "function", "name": "ステータス返信", "func": "var uptime = process.uptime();\nvar hours = Math.floor(uptime / 3600);\nvar mins = Math.floor((uptime % 3600) / 60);\nvar mem = process.memoryUsage();\n\nmsg.to = msg.from;\nmsg.topic = 'Re: ' + msg.topic;\nmsg.payload = 'システムステータスレポート\\n' +\n '========================\\n' +\n '稼働時間: ' + hours + '時間' + mins + '分\\n' +\n 'メモリ使用量: ' + Math.floor(mem.heapUsed / 1024 / 1024) + 'MB / ' + Math.floor(mem.heapTotal / 1024 / 1024) + 'MB\\n' +\n '確認時刻: ' + new Date().toLocaleString('ja-JP');\nreturn msg;", "wires": [["email_ex3_send"]] }, { "id": "email_ex3_report", "type": "function", "name": "レポート返信", "func": "var data = flow.get('sensorData') || [\n {time: '10:00', temp: 25.3, humidity: 60},\n {time: '11:00', temp: 26.1, humidity: 58},\n {time: '12:00', temp: 27.5, humidity: 55}\n];\n\nvar csv = '時刻,温度,湿度\\n';\ndata.forEach(function(row) {\n csv += row.time + ',' + row.temp + ',' + row.humidity + '\\n';\n});\n\nmsg.to = msg.from;\nmsg.topic = 'Re: ' + msg.topic;\nmsg.payload = '計測データレポートを添付します。';\nmsg.attachments = [{\n filename: 'report_' + new Date().toISOString().slice(0,10) + '.csv',\n content: csv,\n contentType: 'text/csv'\n}];\nreturn msg;", "wires": [["email_ex3_send"]] }, { "id": "email_ex3_send", "type": "e-mail", "name": "返信送信", "server": "smtp.gmail.com", "port": "465", "secure": true, "tls": true, "wires": [] } ]