This is my input file - It is just a sample It will have more than 20k rows {"A":12345,"B":"2023-12-31 00:00:00","C":5510,"D":20231231,"E":20240103,"F":20231231,"G":1577158,"H":63217,"I":null,"J":"Company123","K":"SupplierXYZ","L":"987","M":"Vendor ABC","N":"Invoice789","O":"2023-12-31T00:00:00","P":"2024-01-03T00:00:00","Q":"2023033344","R":"7559","S":"Dept123","T":"ModelXYZ","U":7179.0,"V":3,"W":"3769686.0","X":"TypeJ","Y":7179.0,"Z":null,"AA":"NOK","AB":"202312.0","AC":"EXTERNAL","AD":null,"AE":"Counterparty999","AF":"2023-12-31T00:00:00","AG":null,"AH":null,"AI":"66c6c4cc31107992a4079f3653a8a86930a2675d8663c5ab2ec4df23b0f6f3b0","AJ":"2024-02-13T12:58:02.597","AK":"2024-01-03T08:31:16.425292"} {"A":54321,"B":"2024-01-15 08:00:00","C":7890,"D":20240115,"E":20240120,"F":20240115,"G":2468135,"H":951753,"I":null,"J":"Company456","K":"Supplier789","L":"123456789","M":"Vendor XYZ","N":"Invoice123","O":"2024-01-15T08:00:00","P":"2024-01-20T08:00:00","Q":"2024011515","R":"1234","S":"Dept456","T":"ModelABC","U":9876.0,"V":6,"W":"9876543.0","X":"TypeK","Y":9876.0,"Z":null,"AA":"USD","AB":"202401.0","AC":"INTERNAL","AD":null,"AE":"Counterparty888","AF":"2024-01-15T08:00:00","AG":null,"AH":null,"AI":"a1b2c3d4e5f6g7h8i9","AJ":"2024-02-15T08:00:00.123","AK":"2024-01-20T08:00:00.987654"} I want the output as { "dataRepositoryId": "fixedvalue", "importName": "uuid, "data": [ {"A":12345,"B":"2023-12-31 00:00:00","C":5510,"D":20231231,"E":20240103,"F":20231231,"G":1577158,"H":63217,"I":null,"J":"Company123","K":"SupplierXYZ","L":"987","M":"Vendor ABC","N":"Invoice789","O":"2023-12-31T00:00:00","P":"2024-01-03T00:00:00","Q":"2023033344","R":"7559","S":"Dept123","T":"ModelXYZ","U":7179.0,"V":3,"W":"3769686.0","X":"TypeJ","Y":7179.0,"Z":null,"AA":"NOK","AB":"202312.0","AC":"EXTERNAL","AD":null,"AE":"Counterparty999","AF":"2023-12-31T00:00:00","AG":null,"AH":null,"AI":"66c6c4cc31107992a4079f3653a8a86930a2675d8663c5ab2ec4df23b0f6f3b0","AJ":"2024-02-13T12:58:02.597","AK":"2024-01-03T08:31:16.425292"}, {"A":54321,"B":"2024-01-15…