Workflow: configure an n8n workflow for Manual Http Monitor Webhook
Integrations: function, httpRequest, if, manualTrigger, noOp, set

{"nodes": [{"name": "On clicking 'execute'", "type": "n8n-nodes-base.manualTrigger", "position": [200, 470], "parameters": {}, "typeVersion": 1}, {"name": "HTTP Request", "type": "n8n-nodes-base.httpRequest", "position": [600, 470], "parameters": {"url": "={{$node[\"Config URL\"].json[\"next\"]}}", "options": {}, "queryParametersUi": {"parameter": [{"name": "hapikey", "value": "<YOUR_API_KEY>"}, {"name": "limit", "value": "100"}]}}, "typeVersion": 1}, {"name": "NoOp", "type": "n8n-nodes-base.noOp", "position": [800, 470], "parameters": {}, "typeVersion": 1}, {"name": "Wait", "type": "n8n-nodes-base.function", "position": [1000, 470], "parameters": {"functionCode": "return new Promise((resolve, reject) => {\n      setTimeout(() => { resolve([{ json: {} }]) }, 5000);\n    })\n"}, "typeVersion": 1}, {"name": "Config URL", "type": "n8n-nodes-base.function", "position": [400, 470], "parameters": {"functionCode": "\nlet next = 'https://api.hubapi.com/crm/v3/objects/contacts'\n\nif (items[0].json.next) {\n  next = items[0].json.next\n}\n\nreturn [\n  {\n    json: {\n      next : next\n    }\n  }\n]"}, "typeVersion": 1}, {"name": "Check if pagination?", "type": "n8n-nodes-base.if", "position": [1250, 470], "parameters": {"conditions": {"string": [], "boolean": [{"value1": "={{$node[\"HTTP Request\"].json[\"paging\"] ? true : false}}", "value2": true}]}}, "typeVersion": 1}, {"name": "Set next URL", "type": "n8n-nodes-base.set", "position": [890, 210], "parameters": {"values": {"string": [{"name": "next", "value": "={{$node[\"HTTP Request\"].json[\"paging\"][\"next\"][\"link\"]}}"}]}, "options": {}, "keepOnlySet": true}, "executeOnce": true, "typeVersion": 1}, {"name": "Combine all data", "type": "n8n-nodes-base.function", "position": [1500, 560], "parameters": {"functionCode": "const allData = []\n\nlet counter = 0;\ndo {\n  try {\n    const items = $items(\"HTTP Request\", 0, counter).map(item => item.json.results);\n                    \n    const aja = items[0].map(item => {\n      return { json: item }\n    })    \n    \n    allData.push.apply(allData, aja);\n    //allData.push($items(\"Increment\", 0, counter));\n  } catch (error) {\n    return allData;  \n  }\n\n  counter++;\n} while(true);\n\n"}, "typeVersion": 1}], "connections": {"NoOp": {"main": [[{"node": "Wait", "type": "main", "index": 0}]]}, "Wait": {"main": [[{"node": "Check if pagination?", "type": "main", "index": 0}]]}, "Config URL": {"main": [[{"node": "HTTP Request", "type": "main", "index": 0}]]}, "HTTP Request": {"main": [[{"node": "NoOp", "type": "main", "index": 0}]]}, "Set next URL": {"main": [[{"node": "Config URL", "type": "main", "index": 0}]]}, "Check if pagination?": {"main": [[{"node": "Set next URL", "type": "main", "index": 0}], [{"node": "Combine all data", "type": "main", "index": 0}]]}, "On clicking 'execute'": {"main": [[{"node": "Config URL", "type": "main", "index": 0}]]}}}