Task: Import CSV from URL to Google Sheets

n8n workflow JSON:
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spreadsheet","type":"n8n-nodes-base.googleSheets","position":[1880,380],"parameters":{"columns":{"value":{},"schema":[{"id":"unique_key","type":"string","display":true,"removed":false,"required":false,"displayName":"unique_key","defaultMatch":false,"canBeUsedToMatch":true},{"id":"﻿country","type":"string","display":true,"required":false,"displayName":"﻿country","defaultMatch":false,"canBeUsedToMatch":true},{"id":"country_code","type":"string","display":true,"required":false,"displayName":"country_code","defaultMatch":false,"canBeUsedToMatch":true},{"id":"year_week","type":"string","display":true,"required":false,"displayName":"year_week","defaultMatch":false,"canBeUsedToMatch":true},{"id":"level","type":"string","display":true,"required":false,"displayName":"level","defaultMatch":false,"canBeUsedToMatch":true},{"id":"region","type":"string","display":true,"required":false,"displayName":"region","defaultMatch":false,"canBeUsedToMatch":true},{"id":"region_name","type":"string","display":true,"required":false,"displayName":"region_name","defaultMatch":false,"canBeUsedToMatch":true},{"id":"new_cases","type":"string","display":true,"required":false,"displayName":"new_cases","defaultMatch":false,"canBeUsedToMatch":true},{"id":"tests_done","type":"string","display":true,"required":false,"displayName":"tests_done","defaultMatch":false,"canBeUsedToMatch":true},{"id":"population","type":"string","display":true,"required":false,"displayName":"population","defaultMatch":false,"canBeUsedToMatch":true},{"id":"testing_rate","type":"string","display":true,"required":false,"displayName":"testing_rate","defaultMatch":false,"canBeUsedToMatch":true},{"id":"positivity_rate","type":"string","display":true,"required":false,"displayName":"positivity_rate","defaultMatch":false,"canBeUsedToMatch":true},{"id":"testing_data_source","type":"string","display":true,"required":false,"displayName":"testing_data_source","defaultMatch":false,"canBeUsedToMatch":true}],"mappingMode":"autoMapInputData","matchingColumns":["unique_key"]},"options":{"cellFormat":"USER_ENTERED"},"operation":"appendOrUpdate","sheetName":{"__rl":true,"mode":"list","value":383583634,"cachedResultUrl":"https://docs.google.com/spreadsheets/d/13YYuEJ1cDf-t8P2MSTFWnnNHCreQ6Zo8oPSp7WeNnbY/edit#gid=383583634","cachedResultName":"COVID-weekly"},"documentId":{"__rl":true,"mode":"url","value":"https://docs.google.com/spreadsheets/d/13YYuEJ1cDf-t8P2MSTFWnnNHCreQ6Zo8oPSp7WeNnbY"}},"credentials":{"googleSheetsOAuth2Api":{"id":"54","name":"Google Sheets account"}},"typeVersion":4},{"id":"8298b29e-8784-4e15-902f-dc073fa73668","name":"Add unique field","type":"n8n-nodes-base.set","position":[1460,380],"parameters":{"fields":{"values":[{"name":"unique_key","stringValue":"={{ $json.country_code }}-{{ $json.year_week }}"}]},"options":{}},"typeVersion":3},{"id":"b71bb998-4df2-4311-ae98-42c3e5e41d58","name":"Import CSV","type":"n8n-nodes-base.spreadsheetFile","position":[1260,380],"parameters":{"options":{"headerRow":true},"fileFormat":"csv"},"typeVersion":2},{"id":"36204081-3995-46d4-ac8f-3408cbaed657","name":"Download CSV","type":"n8n-nodes-base.httpRequest","position":[1060,380],"parameters":{"url":"https://opendata.ecdc.europa.eu/covid19/testing/csv/data.csv","options":{"response":{"response":{"responseFormat":"file"}}}},"typeVersion":4.1},{"id":"b1a78d2e-1a8b-4d98-b130-080b3017192d","name":"Keep only DACH in 2023","type":"n8n-nodes-base.filter","position":[1680,380],"parameters":{"conditions":{"string":[{"value1":"={{ $json.year_week }}","value2":"2023","operation":"startsWith"}],"boolean":[{"value1":"={{ ['DE', 'AT', 'CH'].includes($json.country_code )}}","value2":true}]}},"typeVersion":1},{"id":"c5a3af9b-30a0-4337-bbb7-cff54007b22f","name":"Sticky Note","type":"n8n-nodes-base.stickyNote","position":[1620,241],"parameters":{"width":460,"height":293,"content":"### Google API has rate-limits for read and write operations, that's why we take only a subset of the data\n\nTo import the whole dataset please add Split In Batches and a Wait node with a sufficient delay."},"typeVersion":1}],"active":false,"pinData":{},"settings":{"executionOrder":"v1"},"versionId":"d49a3f54-a422-4e76-b410-f8c12b4dd78b","connections":{"Import CSV":{"main":[[{"node":"Add unique field","type":"main","index":0}]]},"Download CSV":{"main":[[{"node":"Import CSV","type":"main","index":0}]]},"Add unique field":{"main":[[{"node":"Keep only DACH in 2023","type":"main","index":0}]]},"Keep only DACH in 2023":{"main":[[{"node":"Upload to spreadsheet","type":"main","index":0}]]},"When clicking \"Execute Workflow\"":{"main":[[{"node":"Download CSV","type":"main","index":0}]]}}}