Workflow: construct a n8n workflow for Http Schedule Create Webhook
Integrations: code, httpRequest, if, merge, scheduleTrigger, set, stickyNote

{"meta": {"instanceId": "7858a8e25b8fc4dae485c1ef345e6fe74effb1f5060433ef500b4c186c965c18"}, "nodes": [{"id": "4a82b490-3550-4700-8e9a-5ae1ef7c327f", "name": "Schedule Trigger", "type": "n8n-nodes-base.scheduleTrigger", "position": [-100, 600], "parameters": {"rule": {"interval": [{"field": "seconds", "secondsInterval": 10}]}}, "typeVersion": 1.2}, {"id": "bfe180f2-329c-4d00-9d93-3a87d694cb4e", "name": "Get Auth Token", "type": "n8n-nodes-base.httpRequest", "position": [720, 1080], "parameters": {"url": "https://webhook.site/token", "method": "POST", "options": {}}, "typeVersion": 4.2}, {"id": "26089f68-9d3c-4abd-8541-1d63a8a303c1", "name": "Unprocessed Requests", "type": "n8n-nodes-base.code", "position": [1420, 680], "parameters": {"jsCode": "let filter_method = \"POST\"\nlet last_processed = $json.value ? $json.value : 0\nlet data = $json.data\n\nfunction dateToTime(datetime){\n  return new Date(datetime.replace(\" \", \"T\") + \"Z\").getTime()\n}\n\n//Convert datetimes to timestamps\ndata.forEach(datum=>{datum.created_at = dateToTime(datum.created_at)})\n\n//Filter all new POST requests\nreturn data.filter(datum=>!last_processed || datum.created_at > last_processed).filter(datum=>!filter_method || datum.method==filter_method)"}, "typeVersion": 2}, {"id": "00a5c01c-0cc1-4a56-9b5b-b90cc778ee36", "name": "Get Latest Requests", "type": "n8n-nodes-base.httpRequest", "position": [1060, 800], "parameters": {"url": "=https://webhook.site/token/{{ $json.value }}/requests", "options": {}}, "typeVersion": 4.2}, {"id": "42fbb0c3-34c9-4d97-8761-1b9c84c2f8f7", "name": "POST to n8n", "type": "n8n-nodes-base.httpRequest", "position": [2000, 680], "parameters": {"url": "={{ $('Local Webhook Address').first().json.webhook }}", "body": "={{ $('Unprocessed Requests').item.json.content }}", "method": "POST", "options": {}, "sendBody": true, "contentType": "raw", "rawContentType": "=application/json"}, "typeVersion": 4.2}, {"id": "fd38a00e-2d7f-4621-8f18-47d1770ef3ac", "name": "Merge", "type": "n8n-nodes-base.merge", "position": [1220, 680], "parameters": {"mode": "combine", "options": {"includeUnpaired": true}, "combineBy": "combineByPosition"}, "typeVersion": 3}, {"id": "ef347c09-9870-42db-9109-934277290e0b", "name": "Local Webhook Address", "type": "n8n-nodes-base.set", "position": [160, 700], "parameters": {"options": {}, "assignments": {"assignments": [{"id": "3c53386d-23a8-4c8a-b5e9-dfbb755e2be1", "name": "webhook", "type": "string", "value": "http://localhost:5678/webhook/66210723-bd48-473c-8f8d-73d39d5012db"}]}}, "typeVersion": 3.4}, {"id": "89baa16d-4a06-4f98-9735-9cc9fda5ff09", "name": "Latest Update Time", "type": "n8n-nodes-base.code", "position": [1600, 680], "parameters": {"jsCode": "var datetimes = $('Unprocessed Requests').all().map(x=>x.json.created_at)\nreturn {last_time: Math.max(...datetimes)}"}, "typeVersion": 2}, {"id": "c826677d-317f-4ad4-959d-153862de4ff7", "name": "Sticky Note", "type": "n8n-nodes-base.stickyNote", "position": [620, 980], "parameters": {"width": 460.2964713549969, "height": 288.34663983291097, "content": "## 1. Retrieve existing or get new auth token for webhook.site"}, "typeVersion": 1}, {"id": "f4bc9a8c-d9dc-4969-9251-ce892a5ed41e", "name": "Sticky Note1", "type": "n8n-nodes-base.stickyNote", "position": [1080, 517.8563272190441], "parameters": {"width": 483.2839292355176, "height": 384.1277143350834, "content": "## 2. Check if any new requests to webhook that came later than the last checked request"}, "typeVersion": 1}, {"id": "adaf19be-cb2f-4727-9881-1a3e4098c528", "name": "Sticky Note2", "type": "n8n-nodes-base.stickyNote", "position": [1608.5062710597388, 518.9281636095216], "parameters": {"width": 395.16534069351894, "height": 380.2964713549969, "content": "## 3. Relay the request to the local n8n workflow set in *Local Webhook Address*"}, "typeVersion": 1}, {"id": "4e7add8c-1e95-4ebb-b7c8-35cee3cdeed5", "name": "Sticky Note3", "type": "n8n-nodes-base.stickyNote", "position": [-760, 340], "parameters": {"color": 4, "width": 566.9804381508956, "height": 859.1365566530386, "content": "# Public Webhook Relay\n## How it Works\nUtilizes webhook.site to receive public webhook requests and relays them to your local n8n workflow\n\n## How to Use\n- To use with local key-value store:\n Go to settings > community nodes and enter ```@horka.tv/n8n-nodes-storage-kv``` to install the key-value store node\n- To use with a different storage method:\n Replace the four key-value nodes with a temporary storage option of your choice (Airtable, Notion, Firebase, etc). This is required to save data between runs.\n- Set **Schedule Trigger** with a polling interval (default is every 10 seconds).\n- Set your local workflow address in Local Webhook Address.\n\n## How to Test\n- Set the workflow to *Active*.\n- After workflow executes at least once, you can check the input to **Get Latest Requests** for your auth token.\n- Run this command: ```curl -X POST -H \"Content-Type: application/json\" -d '{\"foo\":\"bar\"}'  https://webhook.site/[THE AUTH TOKEN YOU JUST GOT]```\n- Now check **Executions** and confirm that the workflow ran all the way to the end. Confirm in **Unprocessed Requests** that your data was retrieved (data[0].content should be equal to {\"foo\":\"bar\"})\n- Now check your other local workflow and confirm that it was triggered with the correct data packet ```{\"foo\":\"bar\"}```.\n- *You're done!*\n\n## Caveats\nAt present, the relay expects a POST with form/json data. If you wish to relay raw data or GET requests, please alter the **Unprocessed Requests** and **POST to n8n** nodes accordingly."}, "typeVersion": 1}, {"id": "5d8db2a1-569e-47c0-99a1-d66cb8b86897", "name": "Sticky Note4", "type": "n8n-nodes-base.stickyNote", "position": [40, 608.688533362355], "parameters": {"color": 3, "width": 304.23688498154337, "height": 264.4911255434983, "content": "### 0. Set this to your local workflow address (Production URL or Test URL in your Workflow Trigger node)"}, "typeVersion": 1}, {"id": "e728e8fe-1a7d-4f44-96b8-7344b70b0452", "name": "Store Auth Token", "type": "@horka.tv/n8n-nodes-storage-kv.keyValueStorage", "position": [880, 1080], "parameters": {"key": "auth_token", "value": "={{ $json.uuid }}", "fileName": "savefile"}, "typeVersion": 1}, {"id": "1c19ff08-d6ed-4874-9c1a-69e92b25138a", "name": "Store Last Processed", "type": "@horka.tv/n8n-nodes-storage-kv.keyValueStorage", "position": [1800, 680], "parameters": {"key": "last_processed", "value": "={{ $json.last_time }}", "fileName": "savefile"}, "typeVersion": 1}, {"id": "ea927186-6147-42c7-8873-029616bdbe6d", "name": "Retrieve Auth Token", "type": "@horka.tv/n8n-nodes-storage-kv.keyValueStorage", "position": [380, 860], "parameters": {"key": "auth_token", "fileName": "savefile", "operation": "read"}, "typeVersion": 1}, {"id": "f217889c-7104-4183-8adb-4459f6cdc3d6", "name": "Retrieve Last Processed", "type": "@horka.tv/n8n-nodes-storage-kv.keyValueStorage", "position": [680, 620], "parameters": {"key": "last_processed", "fileName": "savefile", "operation": "read"}, "typeVersion": 1}, {"id": "12293fc3-8964-40da-8326-85c36dade0df", "name": "If Auth Token Exists", "type": "n8n-nodes-base.if", "position": [580, 860], "parameters": {"options": {}, "conditions": {"options": {"leftValue": "", "caseSensitive": true, "typeValidation": "strict"}, "combinator": "and", "conditions": [{"id": "4356f226-da36-418b-957d-880872ddc420", "operator": {"type": "string", "operation": "exists", "singleValue": true}, "leftValue": "={{ $json.value }}", "rightValue": ""}]}}, "typeVersion": 2.1}], "pinData": {}, "connections": {"Merge": {"main": [[{"node": "Unprocessed Requests", "type": "main", "index": 0}]]}, "Get Auth Token": {"main": [[{"node": "Store Auth Token", "type": "main", "index": 0}]]}, "Schedule Trigger": {"main": [[{"node": "Local Webhook Address", "type": "main", "index": 0}, {"node": "Retrieve Last Processed", "type": "main", "index": 0}]]}, "Store Auth Token": {"main": [[{"node": "Get Latest Requests", "type": "main", "index": 0}]]}, "Latest Update Time": {"main": [[{"node": "Store Last Processed", "type": "main", "index": 0}]]}, "Get Latest Requests": {"main": [[{"node": "Merge", "type": "main", "index": 1}]]}, "Retrieve Auth Token": {"main": [[{"node": "If Auth Token Exists", "type": "main", "index": 0}]]}, "If Auth Token Exists": {"main": [[{"node": "Get Latest Requests", "type": "main", "index": 0}], [{"node": "Get Auth Token", "type": "main", "index": 0}]]}, "Store Last Processed": {"main": [[{"node": "POST to n8n", "type": "main", "index": 0}]]}, "Unprocessed Requests": {"main": [[{"node": "Latest Update Time", "type": "main", "index": 0}]]}, "Local Webhook Address": {"main": [[{"node": "Retrieve Auth Token", "type": "main", "index": 0}]]}, "Retrieve Last Processed": {"main": [[{"node": "Merge", "type": "main", "index": 0}]]}}}