Gmail Auto-Reply Draft Generation Based on OpenAI Assistant

• •Google-Konto + Gmail API-Anmeldedaten
• •Möglicherweise sind Ziel-API-Anmeldedaten erforderlich
• •OpenAI API Key

{
  "nodes": [
    {
      "id": "a99b3164-fe36-4dde-9525-110c1ae08afb",
      "name": "Rohdaten in Base64 konvertieren",
      "type": "n8n-nodes-base.code",
      "position": [
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        580
      ],
      "parameters": {
        "mode": "runOnceForEachItem",
        "jsCode": "const encoded = Buffer.from($json.raw).toString('base64');\n\nreturn { encoded };"
      },
      "typeVersion": 2
    },
    {
      "id": "f0f731bd-7b2f-4c39-bc06-42fd57bc4ae8",
      "name": "E-Mail-Entwurf zum Thread hinzufügen",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        3580,
        580
      ],
      "parameters": {
        "url": "https://www.googleapis.com/gmail/v1/users/me/drafts",
        "method": "POST",
        "options": {},
        "jsonBody": "={\"message\":{\"raw\":\"{{ $json.encoded }}\", \"threadId\": \"{{ $('Map fields for further processing').item.json[\"threadId\"] }}\"}}",
        "sendBody": true,
        "specifyBody": "json",
        "authentication": "predefinedCredentialType",
        "nodeCredentialType": "gmailOAuth2"
      },
      "credentials": {
        "gmailOAuth2": {
          "id": "uBcIMfsTtKjexw7I",
          "name": "Gmail (workfloowstutorial@gmail.com)"
        }
      },
      "typeVersion": 4.1
    },
    {
      "id": "c1ce3400-4582-46c7-a85d-8fa9c325ff7b",
      "name": "KI-Label von E-Mail entfernen",
      "type": "n8n-nodes-base.gmail",
      "position": [
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      ],
      "parameters": {
        "resource": "thread",
        "threadId": "={{ $('Map fields for further processing').item.json[\"threadId\"] }}",
        "operation": "removeLabels"
      },
      "credentials": {
        "gmailOAuth2": {
          "id": "uBcIMfsTtKjexw7I",
          "name": "Gmail (workfloowstutorial@gmail.com)"
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      "typeVersion": 2.1
    },
    {
      "id": "65f0508a-ca2e-49ce-b02f-ef6505b5e983",
      "name": "Zeitgesteuerter Trigger (1 Min)",
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      "parameters": {
        "rule": {
          "interval": [
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      "typeVersion": 1.1
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    {
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      "name": "Felder für Weiterverarbeitung zuordnen",
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      "position": [
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      "parameters": {
        "options": {},
        "assignments": {
          "assignments": [
            {
              "id": "a77b2d79-1e70-410c-a657-f3d618154ea1",
              "name": "response",
              "type": "string",
              "value": "={{ $json.output }}"
            },
            {
              "id": "20850cac-f82c-4f02-84f0-3de31871a5b8",
              "name": "threadId",
              "type": "string",
              "value": "={{ $('Get single message content').item.json[\"threadId\"] }}"
            },
            {
              "id": "d270c18e-39a0-4d87-85f0-cc1ffc9c10ff",
              "name": "to",
              "type": "string",
              "value": "={{ $('Get single message content').item.json[\"from\"][\"text\"] }}"
            },
            {
              "id": "30acb50b-bdde-44bf-803c-76e0ae65f526",
              "name": "subject",
              "type": "string",
              "value": "={{ $('Get single message content').item.json[\"subject\"] }}"
            },
            {
              "id": "88914536-8c25-4877-8914-feab5e32fae3",
              "name": "messageId",
              "type": "string",
              "value": "={{ $('Get threads with specific labels').item.json[\"id\"] }}"
            }
          ]
        }
      },
      "typeVersion": 3.3
    },
    {
      "id": "93eb3844-f1fe-4b09-bcae-3e372a19ab6f",
      "name": "Antwort in HTML konvertieren",
      "type": "n8n-nodes-base.markdown",
      "position": [
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      ],
      "parameters": {
        "mode": "markdownToHtml",
        "options": {
          "simpleLineBreaks": false
        },
        "markdown": "={{ $json.response }}",
        "destinationKey": "response"
      },
      "typeVersion": 1
    },
    {
      "id": "da35eda9-b63e-49f9-8fe8-7517c1445c92",
      "name": "E-Mail-Rohformat erstellen",
      "type": "n8n-nodes-base.set",
      "position": [
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      "parameters": {
        "options": {},
        "assignments": {
          "assignments": [
            {
              "id": "913e9cb1-10de-4637-bf48-40272c7c7fe3",
              "name": "raw",
              "type": "string",
              "value": "=To: {{ $json.to }}\nSubject: {{ $json.subject }}\nContent-Type: text/html; charset=\"utf-8\"\n\n{{ $json.response }}"
            }
          ]
        }
      },
      "typeVersion": 3.3
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      "parameters": {
        "color": 4,
        "width": 420.4803040774015,
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        "content": "## Reply draft with OpenAI Assistant\nThis workflow automatically transfers content of incoming email messages with specific labels into OpenAI Assitant and returns reply draft. After draft is composed, trigger label is deleted from the thread.\n\n**Please remember to configure your OpenAI Assistant first.**"
      },
      "typeVersion": 1
    },
    {
      "id": "fe47636b-2142-4c40-a937-2ec360b230ae",
      "name": "Haftnotiz2",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
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      "parameters": {
        "width": 451.41125086385614,
        "height": 313.3056033573073,
        "content": "### Schedule trigger and get emails\nRun the workflow in equal intervals and check for threads with specific labels (trigger labels)."
      },
      "typeVersion": 1
    },
    {
      "id": "c9bfa42c-a045-404d-aebe-d87dceb68f1a",
      "name": "Haftnotiz1",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
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      "parameters": {
        "color": 3,
        "width": 421.0932411886662,
        "height": 257.42916378714597,
        "content": "## ⚠️ Note\n\n1. Complete video guide for this workflow is available [on my YouTube](https://youtu.be/a8Dhj3Zh9vQ). \n2. Remember to add your credentials and configure nodes (covered in the video guide).\n3. If you like this workflow, please subscribe to [my YouTube channel](https://www.youtube.com/@workfloows) and/or [my newsletter](https://workfloows.com/).\n\n**Thank you for your support!**"
      },
      "typeVersion": 1
    },
    {
      "id": "40424340-c0ec-435a-9ce0-0e0dc3b94cfc",
      "name": "Haftnotiz4",
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      "parameters": {
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        "height": 313.7892229150129,
        "content": "### Generate reply\nTransfer email content to OpenAI Assitant and return AI-generated reply.\n"
      },
      "typeVersion": 1
    },
    {
      "id": "e7cce507-6658-414d-8cbc-3af847dad124",
      "name": "Haftnotiz5",
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      "position": [
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      ],
      "parameters": {
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        "height": 314.75072291501283,
        "content": "### Create HTML message\nConvert incoming Markdown from OpenAI Assistant into HTML content."
      },
      "typeVersion": 1
    },
    {
      "id": "2b383967-0a23-46a1-9a19-a9532a3c3425",
      "name": "Haftnotiz7",
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      "position": [
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      "parameters": {
        "width": 461.3148409669012,
        "height": 314.75072291501283,
        "content": "### Build and encode message\nCreate raw message in RFC standard and encode it into base64 string (please see [Gmail API reference](https://developers.google.com/gmail/api/reference/rest/v1/users.drafts/create) for more details)."
      },
      "typeVersion": 1
    },
    {
      "id": "07685b17-cf22-4adf-a6b7-7acc2d863115",
      "name": "Haftnotiz8",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
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      ],
      "parameters": {
        "width": 219.88389496558554,
        "height": 314.75072291501283,
        "content": "### Insert reply draft\nAdd reply draft from OpenAI Assistant to specific Gmail thread."
      },
      "typeVersion": 1
    },
    {
      "id": "1e8109f8-7dd3-4308-a5e8-32382aa41805",
      "name": "Haftnotiz9",
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      "position": [
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      ],
      "parameters": {
        "width": 219.88389496558554,
        "height": 314.75072291501283,
        "content": "### Remove label\nDelete trigger label from the Gmail thread."
      },
      "typeVersion": 1
    },
    {
      "id": "d488db90-7367-49fa-b366-ccdfc796b5b3",
      "name": "Threads mit spezifischen Labels abrufen",
      "type": "n8n-nodes-base.gmail",
      "position": [
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      ],
      "parameters": {
        "filters": {
          "labelIds": []
        },
        "resource": "thread",
        "returnAll": true
      },
      "credentials": {
        "gmailOAuth2": {
          "id": "uBcIMfsTtKjexw7I",
          "name": "Gmail (workfloowstutorial@gmail.com)"
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      "name": "OpenAI Assistant befragen",
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      ],
      "parameters": {
        "text": "={{ $json.text }}",
        "prompt": "define",
        "options": {},
        "resource": "assistant",
        "assistantId": {
          "__rl": true,
          "mode": "list",
          "value": "asst_kmKeAtwF2rv0vgF0ujY4jlp6",
          "cachedResultName": "Customer assistant"
        }
      },
      "credentials": {
        "openAiApi": {
          "id": "jazew1WAaSRrjcHp",
          "name": "OpenAI (workfloows@gmail.com)"
        }
      },
      "typeVersion": 1
    },
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    {
      "id": "8afc47c8-075f-4f3d-a89d-fda81fc270fc",
      "name": "Thread-Nachrichten abrufen",
      "type": "n8n-nodes-base.gmail",
      "position": [
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        820
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      "parameters": {
        "options": {
          "returnOnlyMessages": true
        },
        "resource": "thread",
        "threadId": "={{ $json.id }}",
        "operation": "get"
      },
      "credentials": {
        "gmailOAuth2": {
          "id": "uBcIMfsTtKjexw7I",
          "name": "Gmail (workfloowstutorial@gmail.com)"
        }
      },
      "typeVersion": 2.1
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      "name": "Letzte Nachricht im Thread zurückgeben",
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        "keep": "lastItems"
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    {
      "id": "44c52e61-dd88-4499-85db-69ce4704c2b2",
      "name": "Einzelne Nachrichteninhalte abrufen",
      "type": "n8n-nodes-base.gmail",
      "position": [
        1700,
        460
      ],
      "parameters": {
        "simple": false,
        "options": {},
        "messageId": "={{ $json.id }}",
        "operation": "get"
      },
      "credentials": {
        "gmailOAuth2": {
          "id": "uBcIMfsTtKjexw7I",
          "name": "Gmail (workfloowstutorial@gmail.com)"
        }
      },
      "typeVersion": 2.1
    },
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      "position": [
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      "parameters": {
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        "content": "### Return message content\nRetrieve content of the last message in the thread."
      },
      "typeVersion": 1
    },
    {
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      "name": "Haftnotiz11",
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      "parameters": {
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        "content": "### Get last message from thread\nReturn all messages for a single thread and pass for further processing only the last one."
      },
      "typeVersion": 1
    }
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