Task: Tracking your crypto portfolio in Airtable

n8n workflow:
{"id":"14","name":"Update Crypto Values","nodes":[{"name":"CoinGecko","type":"n8n-nodes-base.coinGecko","position":[670,400],"parameters":{"coinId":"={{$json[\"fields\"][\"Symbol\"]}}","options":{"market_data":true,"localization":false},"operation":"get"},"typeVersion":1},{"name":"Get Portfolio","type":"n8n-nodes-base.airtable","position":[450,400],"parameters":{"table":"Portfolio","operation":"list","application":"appT7eX4iZcZVRIdq","additionalOptions":{"fields":["Symbol"]}},"credentials":{"airtableApi":"Airtable"},"typeVersion":1},{"name":"Set","type":"n8n-nodes-base.set","position":[870,400],"parameters":{"values":{"string":[{"name":"Present Price","value":"={{$json[\"market_data\"][\"current_price\"][\"usd\"]}}"},{"name":"Id","value":"={{$node[\"Get Portfolio\"].json[\"id\"]}}"}]},"options":{},"keepOnlySet":true},"typeVersion":1},{"name":"Run Top of Hour","type":"n8n-nodes-base.cron","position":[240,400],"parameters":{"triggerTimes":{"item":[{"mode":"everyHour"}]}},"typeVersion":1},{"name":"Get Portfolio Values","type":"n8n-nodes-base.airtable","position":[1260,400],"parameters":{"table":"Portfolio","operation":"list","application":"appT7eX4iZcZVRIdq","additionalOptions":{"fields":["Present Value"]}},"credentials":{"airtableApi":"Airtable"},"typeVersion":1},{"name":"Determine Total Value","type":"n8n-nodes-base.function","position":[1460,400],"parameters":{"functionCode":"var totalValues = 0;\n\nitems.forEach(sumValues);\n\nfunction sumValues(value, index, array) {\n  totalValues = totalValues + value.json.fields['Present Value'];\n}\n\nitems = [{\"json\": {}}];\n\n\nitems[0].json['Portfolio Value (US$)'] = totalValues;\n\nreturn items;"},"typeVersion":1},{"name":"Update Values","type":"n8n-nodes-base.airtable","position":[1070,400],"parameters":{"id":"={{$node[\"SplitInBatches\"].json[\"id\"]}}","table":"Portfolio","fields":["Present Price"],"options":{},"operation":"update","application":"appT7eX4iZcZVRIdq","updateAllFields":false},"credentials":{"airtableApi":"Airtable"},"typeVersion":1},{"name":"Append Portfolio Value","type":"n8n-nodes-base.airtable","position":[1660,400],"parameters":{"table":"Portfolio Value","fields":["Portfolio Value (US$)"],"options":{},"operation":"append","application":"appT7eX4iZcZVRIdq","addAllFields":false},"credentials":{"airtableApi":"Airtable"},"typeVersion":1}],"active":false,"settings":{},"connections":{"Set":{"main":[[{"node":"Update Values","type":"main","index":0}]]},"CoinGecko":{"main":[[{"node":"Set","type":"main","index":0}]]},"Get Portfolio":{"main":[[{"node":"CoinGecko","type":"main","index":0}]]},"Update Values":{"main":[[{"node":"Get Portfolio Values","type":"main","index":0}]]},"Run Top of Hour":{"main":[[{"node":"Get Portfolio","type":"main","index":0}]]},"Get Portfolio Values":{"main":[[{"node":"Determine Total Value","type":"main","index":0}]]},"Determine Total Value":{"main":[[{"node":"Append Portfolio Value","type":"main","index":0}]]}}}