{
    "name": "Food Waste Assistant Backend (CORS + POST)",
    "nodes": [
        {
            "parameters": {
                "content": "## Robust Backend\n\nThis workflow handles:\n1. **POST** requests (the main logic)\n2. **OPTIONS** requests (for CORS preflight checks)\n\n### Instructions\n1. Import & Activate.\n2. Both Webhook nodes allow CORS.\n3. Copy the URL from **Webhook (POST)** and put it in your app."
            },
            "id": "desc",
            "name": "Note",
            "type": "n8n-nodes-base.stickyNote",
            "typeVersion": 1,
            "position": [
                0,
                0
            ]
        },
        {
            "parameters": {
                "httpMethod": "POST",
                "path": "webhook",
                "options": {}
            },
            "id": "wh-post",
            "name": "Webhook (POST)",
            "type": "n8n-nodes-base.webhook",
            "typeVersion": 1,
            "position": [
                300,
                200
            ]
        },
        {
            "parameters": {
                "httpMethod": "OPTIONS",
                "path": "webhook",
                "options": {}
            },
            "id": "wh-options",
            "name": "Webhook (OPTIONS)",
            "type": "n8n-nodes-base.webhook",
            "typeVersion": 1,
            "position": [
                300,
                500
            ]
        },
        {
            "parameters": {
                "dataType": "string",
                "value1": "={{ $json.body.action }}",
                "rules": {
                    "rules": [
                        {
                            "value2": "add_item",
                            "output": 0
                        },
                        {
                            "value2": "get_items",
                            "output": 1
                        },
                        {
                            "value2": "suggest_recipes",
                            "output": 2
                        }
                    ]
                }
            },
            "id": "switch",
            "name": "Switch Action",
            "type": "n8n-nodes-base.switch",
            "typeVersion": 2,
            "position": [
                500,
                200
            ]
        },
        {
            "parameters": {
                "jsCode": "return [ { json: { success: true, message: \"Item added (Real N8N)\" } } ];"
            },
            "id": "mock-add",
            "name": "Mock Add",
            "type": "n8n-nodes-base.code",
            "typeVersion": 2,
            "position": [
                750,
                100
            ]
        },
        {
            "parameters": {
                "jsCode": "return [ { json: { items: [ { \"id\": 1, \"name\": \"N8N Connected Apple\", \"quantity\": \"5\", \"expiryDate\": \"2023-12-10\", \"category\": \"Fruits\" } ] } } ];"
            },
            "id": "mock-get",
            "name": "Mock Get",
            "type": "n8n-nodes-base.code",
            "typeVersion": 2,
            "position": [
                750,
                300
            ]
        },
        {
            "parameters": {
                "jsCode": "return [ { json: [ { \"title\": \"N8N Salad\", \"image\": \"https://via.placeholder.com/150\", \"ingredients\": \"Lettuce\" } ] } ];"
            },
            "id": "mock-recipes",
            "name": "Mock Recipes",
            "type": "n8n-nodes-base.code",
            "typeVersion": 2,
            "position": [
                750,
                500
            ]
        },
        {
            "parameters": {
                "options": {
                    "responseHeaders": {
                        "entries": [
                            {
                                "name": "Access-Control-Allow-Origin",
                                "value": "*"
                            },
                            {
                                "name": "Access-Control-Allow-Methods",
                                "value": "POST, OPTIONS"
                            },
                            {
                                "name": "Access-Control-Allow-Headers",
                                "value": "*"
                            }
                        ]
                    }
                }
            },
            "id": "response-cors",
            "name": "Respond to Webhook (CORS)",
            "type": "n8n-nodes-base.respondToWebhook",
            "typeVersion": 1,
            "position": [
                1100,
                300
            ]
        },
        {
            "parameters": {
                "options": {
                    "responseHeaders": {
                        "entries": [
                            {
                                "name": "Access-Control-Allow-Origin",
                                "value": "*"
                            },
                            {
                                "name": "Access-Control-Allow-Methods",
                                "value": "POST, OPTIONS"
                            },
                            {
                                "name": "Access-Control-Allow-Headers",
                                "value": "*"
                            }
                        ]
                    }
                }
            },
            "id": "response-options",
            "name": "Respond OPTIONS",
            "type": "n8n-nodes-base.respondToWebhook",
            "typeVersion": 1,
            "position": [
                600,
                500
            ]
        }
    ],
    "connections": {
        "Webhook (POST)": {
            "main": [
                [
                    {
                        "node": "Switch Action",
                        "type": "main",
                        "index": 0
                    }
                ]
            ]
        },
        "Webhook (OPTIONS)": {
            "main": [
                [
                    {
                        "node": "Respond OPTIONS",
                        "type": "main",
                        "index": 0
                    }
                ]
            ]
        },
        "Switch Action": {
            "main": [
                [
                    {
                        "node": "Mock Add",
                        "type": "main",
                        "index": 0
                    }
                ],
                [
                    {
                        "node": "Mock Get",
                        "type": "main",
                        "index": 0
                    }
                ],
                [
                    {
                        "node": "Mock Recipes",
                        "type": "main",
                        "index": 0
                    }
                ]
            ]
        },
        "Mock Add": {
            "main": [
                [
                    {
                        "node": "Respond to Webhook (CORS)",
                        "type": "main",
                        "index": 0
                    }
                ]
            ]
        },
        "Mock Get": {
            "main": [
                [
                    {
                        "node": "Respond to Webhook (CORS)",
                        "type": "main",
                        "index": 0
                    }
                ]
            ]
        },
        "Mock Recipes": {
            "main": [
                [
                    {
                        "node": "Respond to Webhook (CORS)",
                        "type": "main",
                        "index": 0
                    }
                ]
            ]
        }
    }
}