Task: Scrape and store data from multiple website pages

n8n workflow:
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$node['HTML Extract1'].json.next_button : \"\";\nvar more_pages = next_page.length > 0;\nconst staticData = getWorkflowStaticData('global');\n\n//all current items are after date: needs pagination\nif (more_pages) {\n  staticData.page = next_page;\n} else {\n  //don't check more items in previous pages;\n  delete staticData.page;\n}\n\nreturn [\n  {\n    json: {\n      more_pages: more_pages\n    }\n  }\n];\n"},"typeVersion":1},{"name":"Set","type":"n8n-nodes-base.set","position":[1440,680],"parameters":{"values":{"string":[{"name":"url","value":"=https://www.theswiftcodes.com{{$node[\"Set Page to Scrape\"].json[\"page\"]}}"}]},"options":{}},"typeVersion":1},{"name":"Generate filename","type":"n8n-nodes-base.functionItem","position":[1600,610],"parameters":{"functionCode":"var generateNameFromUrl = function(url){\n    return url.replace(/[^a-z0-9]/gi, \"_\");\n}\n\nitem.file = generateNameFromUrl(item.url) + \".html\"\nreturn item;"},"typeVersion":1},{"name":"Read Binary File","type":"n8n-nodes-base.readBinaryFile","position":[1770,610],"parameters":{"filePath":"=/home/node/.cache/scrapper/{{$json[\"file\"]}}"},"typeVersion":1,"continueOnFail":true,"alwaysOutputData":true},{"name":"File exists?","type":"n8n-nodes-base.if","position":[1950,610],"parameters":{"conditions":{"string":[{"value1":"={{$node[\"Read Binary File\"].binary.data.mimeType}}","value2":"text/html"}]}},"typeVersion":1},{"name":"Write Binary File","type":"n8n-nodes-base.writeBinaryFile","position":[2400,740],"parameters":{"fileName":"=/home/node/.cache/scrapper/{{$node[\"Generate filename\"].json[\"file\"]}}","dataPropertyName":"=data"},"typeVersion":1},{"name":"Read Binary File1","type":"n8n-nodes-base.readBinaryFile","position":[2570,590],"parameters":{"filePath":"=/home/node/.cache/scrapper/{{$json[\"file\"]}}"},"typeVersion":1,"continueOnFail":true,"alwaysOutputData":true},{"name":"Wait","type":"n8n-nodes-base.function","position":[2090,740],"parameters":{"functionCode":"const waitTimeSeconds = 1;\n\nreturn new Promise((resolve) => {\n  setTimeout(() => {\n    resolve([]);\n  }, waitTimeSeconds * 1000);\n});\n"},"typeVersion":1,"continueOnFail":true,"alwaysOutputData":true},{"name":"Prepare countries","type":"n8n-nodes-base.function","position":[700,820],"parameters":{"functionCode":"return items[0].json.countries.map(function(country) {\n  return {\n  json: {country: country}\n  }\n});"},"typeVersion":1},{"name":"Create Directory","type":"n8n-nodes-base.executeCommand","position":[70,820],"parameters":{"command":"mkdir -p  /home/node/.cache/scrapper/"},"typeVersion":1,"continueOnFail":true},{"name":"MongoDB","type":"n8n-nodes-base.mongoDb","disabled":true,"position":[3100,520],"parameters":{"query":"={\"swift_code\": \"{{$json[\"swift_code\"]}}\"}","options":{},"collection":"swifts.meetup"},"credentials":{"mongoDb":"db-mongo"},"executeOnce":false,"typeVersion":1,"alwaysOutputData":true}],"active":false,"settings":{},"connections":{"Set":{"main":[[{"node":"Generate filename","type":"main","index":0}]]},"Wait":{"main":[[{"node":"HTTP Request1","type":"main","index":0}]]},"uProc":{"main":[[{"node":"Set Page to Scrape","type":"main","index":0}]]},"MongoDB":{"main":[[]]},"MongoDB1":{"main":[[{"node":"Set More Pages","type":"main","index":0}]]},"More Pages":{"main":[[{"node":"Set Page to Scrape","type":"main","index":0}],[{"node":"More Countries","type":"main","index":0}]]},"File exists?":{"main":[[{"node":"Read Binary File1","type":"main","index":0}],[{"node":"Wait","type":"main","index":0}]]},"HTML Extract":{"main":[[{"node":"Prepare countries","type":"main","index":0}]]},"HTTP Request":{"main":[[{"node":"HTML Extract","type":"main","index":0}]]},"HTML Extract1":{"main":[[{"node":"Prepare Documents","type":"main","index":0}]]},"HTTP Request1":{"main":[[{"node":"Write Binary File","type":"main","index":0}]]},"More Countries":{"main":[[],[{"node":"SplitInBatches","type":"main","index":0}]]},"Set More Pages":{"main":[[{"node":"More Pages","type":"main","index":0}]]},"SplitInBatches":{"main":[[{"node":"uProc","type":"main","index":0}]]},"Create Directory":{"main":[[{"node":"HTTP Request","type":"main","index":0}]]},"Read Binary File":{"main":[[{"node":"File exists?","type":"main","index":0}]]},"Generate filename":{"main":[[{"node":"Read Binary File","type":"main","index":0}]]},"Prepare Documents":{"main":[[{"node":"MongoDB1","type":"main","index":0}]]},"Prepare countries":{"main":[[{"node":"SplitInBatches","type":"main","index":0}]]},"Read Binary File1":{"main":[[{"node":"HTML Extract1","type":"main","index":0}]]},"Write Binary File":{"main":[[{"node":"Read Binary File1","type":"main","index":0}]]},"Set Page to Scrape":{"main":[[{"node":"Set","type":"main","index":0}]]},"On clicking 'execute'":{"main":[[{"node":"Create Directory","type":"main","index":0}]]}}}