25. Twilio와 Redis를 사용하여 고객 채팅 경험 강화

• •Redis 서버 연결 정보
• •OpenAI API Key

{
  "meta": {
    "instanceId": "26ba763460b97c249b82942b23b6384876dfeb9327513332e743c5f6219c2b8e"
  },
  "nodes": [
    {
      "id": "d61d8ff3-532a-4b0d-a5a7-e02d2e79ddce",
      "name": "OpenAI 채팅 모델",
      "type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
      "position": [
        2660,
        480
      ],
      "parameters": {
        "options": {}
      },
      "credentials": {
        "openAiApi": {
          "id": "8gccIjcuf3gvaoEr",
          "name": "OpenAi account"
        }
      },
      "typeVersion": 1
    },
    {
      "id": "b6d5c1cf-b4a1-4901-b001-0c375747ee63",
      "name": "작업 없음, 아무 동작도 하지 않음",
      "type": "n8n-nodes-base.noOp",
      "position": [
        1660,
        520
      ],
      "parameters": {},
      "typeVersion": 1
    },
    {
      "id": "f4e08e32-bb96-4b5d-852e-26ad6fec3c8c",
      "name": "메시지 스택에 추가",
      "type": "n8n-nodes-base.redis",
      "position": [
        1340,
        200
      ],
      "parameters": {
        "list": "=chat-buffer:{{ $json.From }}",
        "tail": true,
        "operation": "push",
        "messageData": "={{ $json.Body }}"
      },
      "credentials": {
        "redis": {
          "id": "zU4DA70qSDrZM1El",
          "name": "Redis account"
        }
      },
      "typeVersion": 1
    },
    {
      "id": "181ae99e-ebe7-4e99-b5a5-999acc249621",
      "name": "계속 진행해야 하나요?",
      "type": "n8n-nodes-base.if",
      "position": [
        1660,
        360
      ],
      "parameters": {
        "options": {},
        "conditions": {
          "options": {
            "leftValue": "",
            "caseSensitive": true,
            "typeValidation": "strict"
          },
          "combinator": "and",
          "conditions": [
            {
              "id": "ec39573f-f92a-4fe4-a832-0a137de8e7d0",
              "operator": {
                "type": "string",
                "operation": "equals"
              },
              "leftValue": "={{ $('Get Latest Message Stack').item.json.messages.last() }}",
              "rightValue": "={{ $('Twilio Trigger').item.json.Body }}"
            }
          ]
        }
      },
      "typeVersion": 2
    },
    {
      "id": "640c63ca-2798-48a9-8484-b834c1a36301",
      "name": "윈도우 버퍼 메모리",
      "type": "@n8n/n8n-nodes-langchain.memoryBufferWindow",
      "position": [
        2780,
        480
      ],
      "parameters": {
        "sessionKey": "=chat-debouncer:{{ $('Twilio Trigger').item.json.From }}",
        "sessionIdType": "customKey"
      },
      "typeVersion": 1.2
    },
    {
      "id": "123c35c5-f7b2-4b4d-b220-0e5273e25115",
      "name": "Twilio 트리거",
      "type": "n8n-nodes-base.twilioTrigger",
      "position": [
        940,
        360
      ],
      "webhookId": "0ca3da0e-e4e1-4e94-8380-06207bf9b429",
      "parameters": {
        "updates": [
          "com.twilio.messaging.inbound-message.received"
        ]
      },
      "credentials": {
        "twilioApi": {
          "id": "TJv4H4lXxPCLZT50",
          "name": "Twilio account"
        }
      },
      "typeVersion": 1
    },
    {
      "id": "f4e86455-7f4d-4401-8f61-a859be1433a9",
      "name": "최신 메시지 스택 가져오기",
      "type": "n8n-nodes-base.redis",
      "position": [
        1500,
        360
      ],
      "parameters": {
        "key": "=chat-buffer:{{ $json.From }}",
        "keyType": "list",
        "options": {},
        "operation": "get",
        "propertyName": "messages"
      },
      "credentials": {
        "redis": {
          "id": "zU4DA70qSDrZM1El",
          "name": "Redis account"
        }
      },
      "typeVersion": 1,
      "alwaysOutputData": false
    },
    {
      "id": "02f8e7f5-12b4-4a5a-9ce9-5f0558e447aa",
      "name": "스티커 메모",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        1232.162872321277,
        -50.203627749982275
      ],
      "parameters": {
        "color": 7,
        "width": 632.8309394802918,
        "height": 766.7069233634998,
        "content": "## Step 2. Buffer Incoming Messages\n[Learn more about using Redis](https://docs.n8n.io/integrations/builtin/app-nodes/n8n-nodes-base.redis)\n\n* New messages are captured into a list.\n* After X seconds, we get a fresh copy of this list\n* If the last message on the list is the same as the incoming message, then we know no new follow-on messages were sent within the last 5 seconds. Hence the user should be waiting and it is safe to reply.\n* But if the reverse is true, then we will abort the execution here."
      },
      "typeVersion": 1
    },
    {
      "id": "311c0d69-a735-4435-91b6-e80bf7d4c012",
      "name": "응답 전송",
      "type": "n8n-nodes-base.twilio",
      "position": [
        3000,
        320
      ],
      "parameters": {
        "to": "={{ $('Twilio Trigger').item.json.From }}",
        "from": "={{ $('Twilio Trigger').item.json.To }}",
        "message": "={{ $json.output }}",
        "options": {}
      },
      "credentials": {
        "twilioApi": {
          "id": "TJv4H4lXxPCLZT50",
          "name": "Twilio account"
        }
      },
      "typeVersion": 1
    },
    {
      "id": "c0e0cd08-66e3-4ca3-9441-8436c0d9e664",
      "name": "5초 대기",
      "type": "n8n-nodes-base.wait",
      "position": [
        1340,
        360
      ],
      "webhookId": "d486979c-8074-4ecb-958e-fcb24455086b",
      "parameters": {},
      "typeVersion": 1.1
    },
    {
      "id": "c7959fa2-69a5-46b4-8e67-1ef824860f4e",
      "name": "채팅 기록 가져오기",
      "type": "@n8n/n8n-nodes-langchain.memoryManager",
      "position": [
        2000,
        280
      ],
      "parameters": {
        "options": {
          "groupMessages": true
        }
      },
      "typeVersion": 1.1
    },
    {
      "id": "55933c54-5546-4770-8b36-a31496163528",
      "name": "윈도우 버퍼 메모리1",
      "type": "@n8n/n8n-nodes-langchain.memoryBufferWindow",
      "position": [
        2000,
        420
      ],
      "parameters": {
        "sessionKey": "=chat-debouncer:{{ $('Twilio Trigger').item.json.From }}",
        "sessionIdType": "customKey"
      },
      "typeVersion": 1.2
    },
    {
      "id": "459c0181-d239-4eec-88b6-c9603868d518",
      "name": "스티커 메모1",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        774.3250485705519,
        198.07493876489747
      ],
      "parameters": {
        "color": 7,
        "width": 431.1629802181097,
        "height": 357.49804533541777,
        "content": "## Step 1. Listen for Twilio Messages\n[Read more about Twilio Trigger](https://docs.n8n.io/integrations/builtin/trigger-nodes/n8n-nodes-base.twiliotrigger)\n\nIn this example, we'll use the sender's phone number as the session ID. This will be important in retrieving chat history."
      },
      "typeVersion": 1
    },
    {
      "id": "e06313a9-066a-4387-a36c-a6c6ff57d6f9",
      "name": "스티커 메모2",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        1900,
        80
      ],
      "parameters": {
        "color": 7,
        "width": 618.970917763344,
        "height": 501.77420646931444,
        "content": "## Step 3. Get Messages Since Last Reply\n[Read more about using Chat Memory](https://docs.n8n.io/integrations/builtin/cluster-nodes/sub-nodes/n8n-nodes-langchain.memorymanager)\n\nOnce conditions are met and we allow the agent to reply, we'll need to find the bot's last reply and work out the buffer of user messages since then. We can do this by looking using chat memory and comparing this to the latest message in our redis messages stack."
      },
      "typeVersion": 1
    },
    {
      "id": "601a71f6-c6f8-4b73-98c7-cfa11b1facaa",
      "name": "메시지 버퍼 가져오기",
      "type": "n8n-nodes-base.set",
      "position": [
        2320,
        280
      ],
      "parameters": {
        "options": {},
        "assignments": {
          "assignments": [
            {
              "id": "01434acb-c224-46d2-99b0-7a81a2bb50c5",
              "name": "messages",
              "type": "string",
              "value": "={{\n$('Get Latest Message Stack').item.json.messages\n  .slice(\n    $('Get Latest Message Stack').item.json.messages.lastIndexOf(\n      $('Get Chat History').item.json.messages.last().human\n      || $('Twilio Trigger').item.json.chatInput\n    ),\n    $('Get Latest Message Stack').item.json.messages.length\n  )\n  .join('\\n')\n}}"
            }
          ]
        }
      },
      "typeVersion": 3.4
    },
    {
      "id": "9e49f2de-89e6-4152-8e9c-ed47c5fc4654",
      "name": "스티커 메모3",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        2549,
        120
      ],
      "parameters": {
        "color": 7,
        "width": 670.2274698011594,
        "height": 522.5993538768389,
        "content": "## Step 4. Send Single Agent Reply For Many Messages\n[Learn more about using AI Agents](https://docs.n8n.io/integrations/builtin/cluster-nodes/root-nodes/n8n-nodes-langchain.agent)\n\nFinally, our buffered messages are sent to the AI Agent that can formulate a single response for all. This could potentially improve the conversation experience if the chat interaction is naturally more rapid and spontaneous. A drawback however is that responses could be feel much slower - tweak the wait threshold to suit your needs!"
      },
      "typeVersion": 1
    },
    {
      "id": "be13c74a-467c-4ab1-acca-44878c68dba4",
      "name": "스티커 메모4",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        380,
        80
      ],
      "parameters": {
        "width": 375.55385425077225,
        "height": 486.69228315530853,
        "content": "## Try It Out!\n### This workflow demonstrates a simple approach to stagger an AI Agent's reply if users often send in a sequence of partial messages and in short bursts.\n\n* Twilio webhook receives user's messages which are recorded in a message stack powered by Redis.\n* The execution is immediately paused for 5 seconds and then another check is done against the message stack for the latest message.\n* The purpose of this check lets use know if the user is sending more messages or if they are waiting for a reply.\n* The execution is aborted if the latest message on the stack differs from the incoming message and continues if they are the same.\n* For the latter, the agent receives buffered messages and is able to respond to all in a single reply."
      },
      "typeVersion": 1
    },
    {
      "id": "334d38e1-ec16-46f2-a57d-bf531adb8d3d",
      "name": "AI 에이전트",
      "type": "@n8n/n8n-nodes-langchain.agent",
      "position": [
        2660,
        320
      ],
      "parameters": {
        "text": "={{ $json.messages }}",
        "agent": "conversationalAgent",
        "options": {},
        "promptType": "define"
      },
      "typeVersion": 1.6
    }
  ],
  "pinData": {},
  "connections": {
    "334d38e1-ec16-46f2-a57d-bf531adb8d3d": {
      "main": [
        [
          {
            "node": "311c0d69-a735-4435-91b6-e80bf7d4c012",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "123c35c5-f7b2-4b4d-b220-0e5273e25115": {
      "main": [
        [
          {
            "node": "f4e08e32-bb96-4b5d-852e-26ad6fec3c8c",
            "type": "main",
            "index": 0
          },
          {
            "node": "c0e0cd08-66e3-4ca3-9441-8436c0d9e664",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "c0e0cd08-66e3-4ca3-9441-8436c0d9e664": {
      "main": [
        [
          {
            "node": "f4e86455-7f4d-4401-8f61-a859be1433a9",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "c7959fa2-69a5-46b4-8e67-1ef824860f4e": {
      "main": [
        [
          {
            "node": "601a71f6-c6f8-4b73-98c7-cfa11b1facaa",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "181ae99e-ebe7-4e99-b5a5-999acc249621": {
      "main": [
        [
          {
            "node": "c7959fa2-69a5-46b4-8e67-1ef824860f4e",
            "type": "main",
            "index": 0
          }
        ],
        [
          {
            "node": "b6d5c1cf-b4a1-4901-b001-0c375747ee63",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "d61d8ff3-532a-4b0d-a5a7-e02d2e79ddce": {
      "ai_languageModel": [
        [
          {
            "node": "334d38e1-ec16-46f2-a57d-bf531adb8d3d",
            "type": "ai_languageModel",
            "index": 0
          }
        ]
      ]
    },
    "601a71f6-c6f8-4b73-98c7-cfa11b1facaa": {
      "main": [
        [
          {
            "node": "334d38e1-ec16-46f2-a57d-bf531adb8d3d",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "640c63ca-2798-48a9-8484-b834c1a36301": {
      "ai_memory": [
        [
          {
            "node": "334d38e1-ec16-46f2-a57d-bf531adb8d3d",
            "type": "ai_memory",
            "index": 0
          }
        ]
      ]
    },
    "55933c54-5546-4770-8b36-a31496163528": {
      "ai_memory": [
        [
          {
            "node": "c7959fa2-69a5-46b4-8e67-1ef824860f4e",
            "type": "ai_memory",
            "index": 0
          }
        ]
      ]
    },
    "f4e86455-7f4d-4401-8f61-a859be1433a9": {
      "main": [
        [
          {
            "node": "181ae99e-ebe7-4e99-b5a5-999acc249621",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  }
}