Converting a json document array to an array of json documents

Question

I have this array inside a JSON object document. The IpAddresses array has around 2.000 elements

{
   "IpAddresses": [
    "18.213.123.130/32",
    "3.217.79.163/32",
    "3.217.93.44/32",
    .
    .
  ] 
}

I want to convert it to this way:

[
    {
        "ipAddress" : "18.213.123.130/32"
    },
    {
        "ipAddress" : "3.217.79.163/32"
    },
    {
        "ipAddress" : "3.217.93.44/32"
    },
    .
    .
]

I am trying to do it by using json package in python

myArray = ["18.213.123.130/32",
           "3.217.79.163/32",
           "3.217.93.44/32"
          ]

ip_addresses = {item: "ipAddress" for item in myArray}
json_str_ip_adresses = json.dumps(ip_addresses)
print(repr(json_str_ip_adresses))

But the output I got is the following:

> python array-json.py
'{"18.213.123.130/32": "ipAddress", "3.217.79.163/32": "ipAddress", "3.217.93.44/32": "ipAddress"}

I am getting all my elements inside a JSON document, but what I want is to get every element inside myArray as a JSON document with an "ipAddress" key, something like this:

> python array-json.py
'{"ipAddress" : "18.213.123.130/32"}, {"ipAddress":"3.217.79.163/32", {"ipAddress":"3.217.93.44/32"}'

What is the best way to do it?

Krishna Chaurasia · Accepted Answer · 2021-03-14 11:59:32Z

2

You can use list comprehension as:

ip_addresses = [{"ipAddress": item} for item in myArray]

Also, you don't need json.dumps() and repr() to convert back and forth.

answered Mar 14, 2021 at 11:59

Krishna Chaurasia

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Comments

RJ Adriaansen · Accepted Answer · 2021-03-14 11:58:16Z

1

data = { "IpAddresses": [ "18.213.123.130/32", "3.217.79.163/32", "3.217.93.44/32" ] }
[{"ipAddress": i} for i in data["IpAddresses"]]

Result:

[{'ipAddress': '18.213.123.130/32'},
 {'ipAddress': '3.217.79.163/32'},
 {'ipAddress': '3.217.93.44/32'}]

answered Mar 14, 2021 at 11:58

RJ Adriaansen

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