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workflows/JSON Data Utility: Extract Key-Value Pairs by Index-6615/json_data_utility_extract_key-value_pairs_by_index.json
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{"id":"LSZHMsAomkKlMfYR","meta":{"instanceId":"14e4c77104722ab186539dfea5182e419aecc83d85963fe13f6de862c875ebfa"},"name":"📄 Extract Key Value from JSON - n8n Workflow","tags":[],"nodes":[{"id":"9ef4197b-17d8-42aa-b771-2b151763298a","name":"When clicking ‘Test workflow’","type":"n8n-nodes-base.manualTrigger","position":[-40,-20],"parameters":{},"typeVersion":1},{"id":"7fa816d2-60e4-42bc-9803-3e49ceb7a4ab","name":"Input JSON Node","type":"n8n-nodes-base.set","position":[140,-20],"parameters":{"mode":"raw","options":{},"jsonOutput":"{\n \"myData\": {\n \"name\": \"Alice\",\n \"age\": \"30\",\n \"city\": \"Paris\"\n },\n \"rowIndex\": \"1\"\n}\n\n"},"typeVersion":3.4},{"id":"c2a948b4-65b5-490d-8e4c-cdb6b39ad70e","name":"Find Key-Value Pair","type":"n8n-nodes-base.code","position":[340,-20],"parameters":{"language":"python","pythonCode":"import json\nans=[]\nind = (_input.first().json.rowIndex)\nind=int(ind)\n\nfor i in _input.first().json.myData:\n if ind==0:\n ans.append(i)\n ans.append(_input.first().json.myData[i])\n break\n ind=ind-1\n\n# Return in valid n8n format\nreturn [{\"json\": {\"result\": ans}}]\n\n\n\n\n"},"typeVersion":2,"alwaysOutputData":true},{"id":"c2f94136-8254-44b6-abe2-39caa814b036","name":"Key","type":"n8n-nodes-base.set","position":[600,-140],"parameters":{"options":{"dotNotation":false,"ignoreConversionErrors":true},"assignments":{"assignments":[{"id":"243bbcc4-ff8a-4af5-b80b-96c524d33118","name":"result","type":"array","value":"={{ $json.result[0] }}"}]}},"typeVersion":3.4},{"id":"1e6f42da-e376-463b-acc5-37a5454d55d3","name":"Value","type":"n8n-nodes-base.set","position":[600,120],"parameters":{"options":{"dotNotation":false,"ignoreConversionErrors":true},"assignments":{"assignments":[{"id":"5b20ed91-93b0-45b4-b555-5d7a3cff672e","name":"result[1]","type":"string","value":"={{ $json.result[1] }}"}]}},"typeVersion":3.4}],"active":false,"pinData":{},"settings":{"executionOrder":"v1"},"versionId":"fc8d479a-c821-44d1-9b46-f617cbfb5e25","connections":{"Key":{"main":[[]]},"Input JSON Node":{"main":[[{"node":"Find Key-Value Pair","type":"main","index":0}]]},"Find Key-Value Pair":{"main":[[{"node":"Key","type":"main","index":0},{"node":"Value","type":"main","index":0}]]},"When clicking ‘Test workflow’":{"main":[[{"node":"Input JSON Node","type":"main","index":0}]]}}}