learner.json

{
  "name": "04 - Safe Divide API",
  "nodes": [
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "divide",
        "responseMode": "responseNode",
        "options": {}
      },
      "id": "m04-webhook",
      "name": "Divide API",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 2,
      "position": [
        0,
        100
      ],
      "webhookId": "course-04-divide"
    },
    {
      "parameters": {
        "conditions": {
          "options": {
            "caseSensitive": true,
            "leftValue": "",
            "typeValidation": "strict",
            "version": 2
          },
          "conditions": [
            {
              "id": "n1",
              "leftValue": "={{ $json.body.a !== '' && $json.body.b !== '' && Number.isFinite(Number($json.body.a)) && Number.isFinite(Number($json.body.b)) }}",
              "rightValue": "",
              "operator": {
                "type": "boolean",
                "operation": "true",
                "singleValue": true
              }
            }
          ],
          "combinator": "and"
        },
        "options": {}
      },
      "id": "m04-valid",
      "name": "Numbers?",
      "type": "n8n-nodes-base.if",
      "typeVersion": 2.2,
      "position": [
        220,
        100
      ]
    },
    {
      "parameters": {
        "workflowId": {
          "__rl": true,
          "mode": "id",
          "value": "__WF_ID:learner-sub.json__"
        },
        "workflowInputs": {
          "mappingMode": "defineBelow",
          "value": {
            "a": "={{ Number($json.body.a) }}",
            "b": "={{ Number($json.body.b) }}"
          },
          "matchingColumns": [],
          "schema": [
            {
              "id": "a",
              "displayName": "a",
              "required": false,
              "defaultMatch": false,
              "display": true,
              "canBeUsedToMatch": true,
              "type": "number",
              "removed": false
            },
            {
              "id": "b",
              "displayName": "b",
              "required": false,
              "defaultMatch": false,
              "display": true,
              "canBeUsedToMatch": true,
              "type": "number",
              "removed": false
            }
          ],
          "attemptToConvertTypes": false,
          "convertFieldsToString": true
        },
        "options": {
          "waitForSubWorkflow": true
        }
      },
      "id": "m04-exec",
      "name": "Divide (sub-workflow)",
      "type": "n8n-nodes-base.executeWorkflow",
      "typeVersion": 1.2,
      "position": [
        440,
        0
      ],
      "onError": "continueErrorOutput"
    },
    {
      "parameters": {
        "respondWith": "json",
        "responseBody": "={{ { result: $json.result } }}",
        "options": {}
      },
      "id": "m04-ok",
      "name": "Respond OK",
      "type": "n8n-nodes-base.respondToWebhook",
      "typeVersion": 1.1,
      "position": [
        700,
        -100
      ]
    },
    {
      "parameters": {
        "respondWith": "json",
        "responseBody": "={{ { error: $json.error } }}",
        "options": {
          "responseCode": 422
        }
      },
      "id": "m04-422",
      "name": "Respond Calculation Error",
      "type": "n8n-nodes-base.respondToWebhook",
      "typeVersion": 1.1,
      "position": [
        700,
        100
      ]
    },
    {
      "parameters": {
        "respondWith": "json",
        "responseBody": "={{ { error: 'a and b must be numbers' } }}",
        "options": {
          "responseCode": 400
        }
      },
      "id": "m04-400",
      "name": "Respond Bad Input",
      "type": "n8n-nodes-base.respondToWebhook",
      "typeVersion": 1.1,
      "position": [
        440,
        250
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "crash",
        "options": {},
        "responseMode": "lastNode"
      },
      "id": "m04-crash-webhook",
      "name": "Crash API",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 2,
      "position": [
        0,
        450
      ],
      "webhookId": "course-04-crash"
    },
    {
      "parameters": {
        "errorMessage": "Simulated crash to test the Error Workflow"
      },
      "id": "m04-crash",
      "name": "Simulate Crash",
      "type": "n8n-nodes-base.stopAndError",
      "typeVersion": 1,
      "position": [
        220,
        450
      ]
    }
  ],
  "connections": {
    "Divide API": {
      "main": [
        [
          {
            "node": "Numbers?",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Numbers?": {
      "main": [
        [
          {
            "node": "Divide (sub-workflow)",
            "type": "main",
            "index": 0
          }
        ],
        [
          {
            "node": "Respond Bad Input",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Divide (sub-workflow)": {
      "main": [
        [
          {
            "node": "Respond OK",
            "type": "main",
            "index": 0
          }
        ],
        [
          {
            "node": "Respond Calculation Error",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Crash API": {
      "main": [
        [
          {
            "node": "Simulate Crash",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "pinData": {},
  "settings": {
    "executionOrder": "v1",
    "errorWorkflow": "__WF_ID:learner-error.json__"
  }
}