iquery is a tool that allows you to easily query data in JSON format. JSON (short for JavaScript Object Notation) is a lightweight data interchange format that is easy for humans to read and write and easy for machines to parse and generate. In this article, we will explore some of the ways you can use iquery to extract data from JSON files.

To use iquery, you will need to have it installed on your machine. Once you have iquery installed, you can start querying JSON files. Here is an example of a JSON file:

{
"name": "John Doe",
"age": 30,
"address": {
"street": "123 Main St",
"city": "Anytown",
"state": "CA",
"zip": "12345"
},
"phone": [
{
"type": "home",
"number": "555-1234"
},
{
"type": "work",
"number": "555-5678"
}
]
}

You can use iquery to query this JSON file. Here are some examples:

$ iquery -f example.json
$ iquery -f example.json -w "name = 'John Doe'"
$ iquery -f example.json -w "phone.type = 'home'"
$ iquery -f example.json -p "phone[*].number"

The first example simply queries the entire JSON file. The second example returns any records where the name field equals "John Doe". The third example returns any records where the phone.type field equals "home". The fourth example returns all phone numbers.

In conclusion, iquery is a powerful tool for querying data in JSON format. With iquery, you can easily extract data from complex JSON files. Whether you are working with big data or just a few JSON files, iquery can help you get the data you need.