Question 108820 in Json Question posted in
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Json – Converting values from one dictionary to another dictionary as key:value in python

I have a situation where I need to read a json file containing statistics of different events coming into my system every 5 mins .I need to aggregate the counts for each of the events show against the events and pass it in another dictionary
This is my sample input dictionary json

"data": [
    {
      "recievedTime": "2023-04-10T00:05:00.000Z",
      "data": [
        {
          "EventType": "Call",
          "NumberOfEvents": 1000
        },
        {
          "EventType": "SMS",
          "NumberOfEvents": 55
        }
        ]}
    "recievedTime": "2023-04-10T00:10:00.000Z",
"data": [
        {
          "EventType": "Call",
          "NumberOfEvents": 2003
        },
        {
          "EventType": "SMS",
          "NumberOfEvents": 45
        }
        ]}
      ]

I want the output to take the sum of the event counts be in another json object like this:

"data" : [ {"Call": 3003,"SMS" : 100}]

How can I solve this problem ?

Tags:

2

Answers


  1. 0

    You can use a loop to iterate through the events in the input dictionary and add up the counts for each event type. Here’s some example code to achieve this:

    import json

input_data = {
    "data": [
        {
            "recievedTime": "2023-04-10T00:05:00.000Z",
            "data": [
                {
                    "EventType": "Call",
                    "NumberOfEvents": 1000
                },
                {
                    "EventType": "SMS",
                    "NumberOfEvents": 55
                }
            ]
        },
        {
            "recievedTime": "2023-04-10T00:10:00.000Z",
            "data": [
                {
                    "EventType": "Call",
                    "NumberOfEvents": 2003
                },
                {
                    "EventType": "SMS",
                    "NumberOfEvents": 45
                }
            ]
        }
    ]
}

output_data = {}

for entry in input_data['data']:
    for event in entry['data']:
        event_type = event['EventType']
        event_count = event['NumberOfEvents']
        if event_type in output_data:
            output_data[event_type] += event_count
        else:
            output_data[event_type] = event_count

output_json = json.dumps({'data': [output_data]})

print(output_json)

    This will produce the desired output:

    {"data": [{"Call": 3003, "SMS": 100}]}
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  2. 0

    It’s actually quite simple, you just need to us Python’s built-in json module to parse the JSON data, and then loop through the data array.

    You can do it like this

    import json

input_data = {
  "data": [
    {
      "recievedTime": "2023-04-10T00:05:00.000Z",
      "data": [
        {
          "EventType": "Call",
          "NumberOfEvents": 1000
        },
        {
          "EventType": "SMS",
          "NumberOfEvents": 55
        }
      ]
    },
    {
      "recievedTime": "2023-04-10T00:10:00.000Z",
      "data": [
        {
          "EventType": "Call",
          "NumberOfEvents": 2003
        },
        {
          "EventType": "SMS",
          "NumberOfEvents": 45
        }
      ]
    }
  ]
}

event_counts = {}

for item in input_data['data']:
    for event in item['data']:
        event_type = event['EventType']
        event_count = event['NumberOfEvents']
        if event_type not in event_counts:
            event_counts[event_type] = event_count
        else:
            event_counts[event_type] += event_count

output_data = {"data": []}

for event_type, event_count in event_counts.items():
    output_data["data"].append({event_type: event_count})

print(json.dumps(output_data))

    Output

    {
  "data": [
    {
      "Call": 3003
    },
    {
      "SMS": 100
    }
  ]
}
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