Python Converting Nested JSON with Array of Objects, and Objects to Excel

Question

Can someone help me in converting the below JSON file to Excel?

Excel Output format

metaData.user report.from report.to lossInfo.locationName.Name lossInfo.locationName.locNbr lossInfo.locationDetails.locNm lossInfo.locationDetails.locAddress.locCity

Test User 12-12-2021 12-12-2022 test1 12 xyz abc

Test User 12-12-2021 12-12-2022 test2 121 xyz1 abc1

{
    "metaData": {
        "formName": "A1",
        "user": "Test User"
    },
    "report": {
        "from": "12/12/2021",
        "to": "12/12/2022"
    },
    "lossInfo": [
        {
            "locationName": {
                "name": "test1",
                "locNbr": "12"
            },
            "locationDetails": {
                "locNm": "xyz",
                "locAddress": {
                    "locCity": "abc",
                    "locStateCd": "abcd"
                },
                "state": "ab",
                "lossLocation": "cd"
            }
        },
        {
            "locationName": {
                "name": "test11",
                "locNbr": "121"
            },
            "locationDetails": {
                "locNm": "xyz1",
                "locAddress": {
                    "locCity": "abc1",
                    "locStateCd": "abcd1"
                },
                "state": "ab1",
                "lossLocation": "cd1"
            }
        }
    ]
}

Answer 1

The json format you gave is wrong. There is no comma before the key named locationDetails . You can use json_normalize after you fix it.

df = pd.json_normalize(json_data,meta=['lossInfo']).explode('lossInfo').reset_index(drop=True)
df = df.join(pd.json_normalize(df.pop('lossInfo')))
'''
|    | metaData.formName   | metaData.user   | report.from   | report.to   | locationName.name   |   locationName.locNbr | locationDetails.locNm   | locationDetails.locAddress.locCity   | locationDetails.locAddress.locStateCd   | locationDetails.state   | locationDetails.lossLocation   |
|---:|:--------------------|:----------------|:--------------|:------------|:--------------------|----------------------:|:------------------------|:-------------------------------------|:----------------------------------------|:------------------------|:-------------------------------|
|  0 | A1                  | Test User       | 12/12/2021    | 12/12/2022  | test1               |                    12 | xyz                     | abc                                  | abcd                                    | ab                      | cd                             |
|  1 | A1                  | Test User       | 12/12/2021    | 12/12/2022  | test11              |                   121 | xyz1                    | abc1                                 | abcd1                                   | ab1                     | cd1                            |
'''