{
  "nodes": [
    {
      "parameters": {
        "public": "={{ $env.N8N_PUBLIC || false }}",
        "authentication": "basicAuth",
        "initialMessages": "Hi there!",
        "options": {
          "responseMode": "responseNodes"
        }
      },
      "type": "@n8n/n8n-nodes-langchain.chatTrigger",
      "typeVersion": 1.3,
      "position": [
        -1392,
        -368
      ],
      "name": "When chat message received"
    },
    {
      "parameters": {
        "method": "POST",
        "url": "={{ $env.LANGSMITH_DEPLOYMENT_URL }}/threads",
        "sendHeaders": true,
        "headerParameters": {
          "parameters": [
            {
              "name": "Content-Type",
              "value": "application/json"
            },
            {
              "name": "X-Api-Key",
              "value": "={{ $env.LANGSMITH_API_KEY }}"
            }
          ]
        },
        "sendBody": true,
        "specifyBody": "json",
        "jsonBody": "={ \"metadata\": { \"session_id\": \"{{$json.sessionId}}\" } }\n",
        "options": {}
      },
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        -496,
        -272
      ],
      "name": "Create Thread"
    },
    {
      "parameters": {
        "method": "POST",
        "url": "={{ $env.LANGSMITH_DEPLOYMENT_URL }}/threads/{{ $json.thread_id }}/runs",
        "sendHeaders": true,
        "headerParameters": {
          "parameters": [
            {
              "name": "Content-Type",
              "value": "application/json"
            },
            {
              "name": "X-Api-Key",
              "value": "={{ $env.LANGSMITH_API_KEY }}"
            }
          ]
        },
        "sendBody": true,
        "specifyBody": "json",
        "jsonBody": "={\n  \"assistant_id\": \"={{ $env.LANGSMITH_ASSISTANT_ID }}\",\n  \"input\": {\n    \"messages\": [\n      { \"role\": \"user\", \"content\": \"{{ $('Create payload').item.json.input.messages[0].content }}\" }\n    ]\n  },\n  \"metadata\": { \"session_id\": \"{{ $('Create payload').item.json.metadata.session_id }}\" }\n}\n",
        "options": {}
      },
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        624,
        -368
      ],
      "name": "Start Run"
    },
    {
      "parameters": {
        "mode": "raw",
        "jsonOutput": "={\n  \"threadId\": \"{{ $json.thread_id }}\",\n  \"runId\": \"{{ $json.run_id }}\",\n  \"delayS\": 1,\n  \"elapsedMs\": 0,\n  \"maxS\": 180\n}\n",
        "options": {}
      },
      "type": "n8n-nodes-base.set",
      "typeVersion": 3.4,
      "position": [
        848,
        -368
      ],
      "name": "Poll State"
    },
    {
      "parameters": {
        "amount": "={{ $json.delayMs }}\n"
      },
      "type": "n8n-nodes-base.wait",
      "typeVersion": 1.1,
      "position": [
        1072,
        -368
      ],
      "name": "Wait"
    },
    {
      "parameters": {
        "url": "={{ $env.LANGSMITH_DEPLOYMENT_URL }}/threads/{{ $('Poll State').item.json.threadId }}/runs/{{ $('Poll State').item.json.runId }}\n",
        "sendHeaders": true,
        "headerParameters": {
          "parameters": [
            {
              "name": "Content-Type",
              "value": "application/json"
            },
            {
              "name": "X-Api-Key",
              "value": "={{ $env.LANGSMITH_API_KEY }}"
            }
          ]
        },
        "options": {}
      },
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        1296,
        -448
      ],
      "name": "Get run"
    },
    {
      "parameters": {
        "conditions": {
          "options": {
            "caseSensitive": true,
            "leftValue": "",
            "typeValidation": "strict",
            "version": 2
          },
          "conditions": [
            {
              "leftValue": "={{ $json.status }}",
              "rightValue": "success",
              "operator": {
                "type": "string",
                "operation": "equals",
                "name": "filter.operator.equals"
              }
            }
          ],
          "combinator": "and"
        },
        "options": {}
      },
      "type": "n8n-nodes-base.if",
      "typeVersion": 2.2,
      "position": [
        1520,
        -368
      ],
      "name": "If"
    },
    {
      "parameters": {
        "url": "={{ $env.LANGSMITH_DEPLOYMENT_URL }}/threads/{{ $('Poll State').item.json.threadId }}/runs/{{ $json.run_id }}/join",
        "sendHeaders": true,
        "headerParameters": {
          "parameters": [
            {
              "name": "X-Api-Key",
              "value": "={{ $env.LANGSMITH_API_KEY }}"
            },
            {
              "name": "Content-Type",
              "value": "application/json"
            }
          ]
        },
        "options": {}
      },
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        1744,
        -368
      ],
      "name": "Get Message"
    },
    {
      "parameters": {
        "assignments": {
          "assignments": [
            {
              "name": "content",
              "value": "={{ \n  (\n    (Array.isArray($json.values?.messages) && $json.values.messages)\n    || (Array.isArray($json.messages) && $json.messages)\n    || []\n  ).slice(-1)[0]?.content\n  || (\n    ((Array.isArray($json.values?.messages) && $json.values.messages)\n     || (Array.isArray($json.messages) && $json.messages)\n     || []\n    ).slice(-1)[0]?.text\n  )\n  || (\n    ((Array.isArray($json.values?.messages) && $json.values.messages)\n     || (Array.isArray($json.messages) && $json.messages)\n     || []\n    ).slice(-1)[0]?.value\n  )\n  || \"⟂ Keine Text-Response.\"\n}}",
              "type": "string"
            }
          ]
        },
        "options": {}
      },
      "type": "n8n-nodes-base.set",
      "typeVersion": 3.4,
      "position": [
        1968,
        -368
      ],
      "name": "Set response"
    },
    {
      "parameters": {
        "conditions": {
          "options": {
            "caseSensitive": true,
            "leftValue": "",
            "typeValidation": "strict",
            "version": 2
          },
          "conditions": [
            {
              "leftValue": "={{ $json.hasThread }}",
              "rightValue": "",
              "operator": {
                "type": "boolean",
                "operation": "true",
                "singleValue": true
              }
            }
          ],
          "combinator": "and"
        },
        "options": {}
      },
      "type": "n8n-nodes-base.if",
      "typeVersion": 2.2,
      "position": [
        -720,
        -368
      ],
      "name": "If1"
    },
    {
      "parameters": {
        "assignments": {
          "assignments": [
            {
              "name": "threadId",
              "value": "={{ $node[\"Simple Thread Storage\"].json.threadId }}\n\n",
              "type": "string"
            }
          ]
        },
        "options": {}
      },
      "type": "n8n-nodes-base.set",
      "typeVersion": 3.4,
      "position": [
        -48,
        -464
      ],
      "name": "Merge Thread ID"
    },
    {
      "parameters": {
        "assignments": {
          "assignments": [
            {
              "name": "threadId",
              "value": "={{ $node[\"Create Thread\"].json.thread_id }}\n\n",
              "type": "string"
            }
          ]
        },
        "options": {}
      },
      "type": "n8n-nodes-base.set",
      "typeVersion": 3.4,
      "position": [
        -48,
        -272
      ],
      "name": "Merge Thread ID1"
    },
    {
      "parameters": {},
      "type": "n8n-nodes-base.merge",
      "typeVersion": 3.2,
      "position": [
        176,
        -368
      ],
      "name": "Merge"
    },
    {
      "parameters": {
        "message": "={{ $json.content }}",
        "waitUserReply": false,
        "options": {}
      },
      "type": "@n8n/n8n-nodes-langchain.chat",
      "typeVersion": 1,
      "position": [
        2192,
        -368
      ],
      "name": "Respond to Chat"
    },
    {
      "parameters": {
        "mode": "raw",
        "jsonOutput": "={\n  \"input\": {\n    \"messages\": [\n      { \"role\": \"user\", \"content\": \"{{$json.chatInput}}\" }\n    ]\n  },\n  \"metadata\": {\n    \"session_id\": \"{{$json.sessionId}}\",\n    \"user_id\": \"{{$json.userID || ''}}\",\n    \"extra\": \"{{$json.metadata || ''}}\"\n  }\n}",
        "options": {}
      },
      "type": "n8n-nodes-base.set",
      "typeVersion": 3.4,
      "position": [
        -1168,
        -368
      ],
      "name": "Create payload"
    },
    {
      "parameters": {
        "jsCode": "const store = $getWorkflowStaticData('global');  \n\nif (!store.sessionToThread) store.sessionToThread = {};\n\nconst sessionId = $input.first().json.metadata.session_id;  \nconst existing = store.sessionToThread[sessionId] || null;\n\nreturn [\n  { json: { sessionId, threadId: existing, hasThread: !!existing } }\n];\n"
      },
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        -944,
        -368
      ],
      "name": "Simple Thread Storage"
    },
    {
      "parameters": {
        "jsCode": "const store = $getWorkflowStaticData('global');\nif (!store.sessionToThread) store.sessionToThread = {};\n\nconst sessionId = $('When chat message received').first().json.sessionId;\nconst threadId  = $input.first().json.thread_id; \n\nstore.sessionToThread[sessionId] = threadId;\n\nstore.lastUpdated = new Date().toISOString();\n\nreturn [{ json: { sessionId, threadId } }];\n"
      },
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        -272,
        -272
      ],
      "name": "Simple Thread Storage 2"
    },
    {
      "parameters": {
        "assignments": {
          "assignments": [
            {
              "name": "thread_id",
              "value": "={{ $json.threadId }}",
              "type": "string"
            }
          ]
        },
        "options": {}
      },
      "type": "n8n-nodes-base.set",
      "typeVersion": 3.4,
      "position": [
        400,
        -368
      ],
      "name": "Set thread id"
    },
    {
      "id": "4dc97242-1736-52de-883a-4210b868a2cf",
      "name": "Publication · Overview and setup",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -2192,
        -464
      ],
      "parameters": {
        "content": "# receive chat events and http request and respond to chat\n\n## Purpose and structure\nThis folder contains the **receive chat events and http request and respond to chat** workflow. Its executable nodes use `chat`, `chatTrigger`, `code`, `httpRequest`, `if`, `merge`, `set`, `wait`. The table and connection map below are derived from the JSON, not an inferred guarantee of behavior.\n\n## Setup\nImport inactive. Configure your own credentials and replace REPLACE_WITH_* values. Review external destinations and Code nodes before running.\n\n## Entry points\nWhen chat message received\n\n## Verification\nSanitized source candidate; not runtime-tested. This overview is generated from node metadata. Read the folder README for the connection map, credential types, and license.\n\n## Attribution\nhttps://github.com/blackbaddl13/r-KSODI-POC/blob/cbbe896ee41d933b114ddb8886c5a23d9b1bca89/n8n.json\nMIT; preserve source notices.",
        "width": 700,
        "height": 800,
        "color": 1
      }
    }
  ],
  "connections": {
    "When chat message received": {
      "main": [
        [
          {
            "node": "Create payload",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Create Thread": {
      "main": [
        [
          {
            "node": "Simple Thread Storage 2",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Start Run": {
      "main": [
        [
          {
            "node": "Poll State",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Poll State": {
      "main": [
        [
          {
            "node": "Wait",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Wait": {
      "main": [
        [
          {
            "node": "Get run",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Get run": {
      "main": [
        [
          {
            "node": "If",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "If": {
      "main": [
        [
          {
            "node": "Get Message",
            "type": "main",
            "index": 0
          }
        ],
        [
          {
            "node": "Wait",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Get Message": {
      "main": [
        [
          {
            "node": "Set response",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Set response": {
      "main": [
        [
          {
            "node": "Respond to Chat",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "If1": {
      "main": [
        [
          {
            "node": "Merge Thread ID",
            "type": "main",
            "index": 0
          }
        ],
        [
          {
            "node": "Create Thread",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Merge Thread ID": {
      "main": [
        [
          {
            "node": "Merge",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Merge Thread ID1": {
      "main": [
        [
          {
            "node": "Merge",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Merge": {
      "main": [
        [
          {
            "node": "Set thread id",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Respond to Chat": {
      "main": [
        []
      ]
    },
    "Create payload": {
      "main": [
        [
          {
            "node": "Simple Thread Storage",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Simple Thread Storage": {
      "main": [
        [
          {
            "node": "If1",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Simple Thread Storage 2": {
      "main": [
        [
          {
            "node": "Merge Thread ID1",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Set thread id": {
      "main": [
        [
          {
            "node": "Start Run",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "active": false
}