https://github.com/cdown/json-key-from-value

Find the key or index that provides a value in a big blob of JSON.
https://github.com/cdown/json-key-from-value

Last synced: about 2 months ago
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Find the key or index that provides a value in a big blob of JSON.

• Host: GitHub
• URL: https://github.com/cdown/json-key-from-value
• Owner: cdown
• License: mit
• Created: 2024-02-09T03:26:08.000Z (about 1 year ago)
• Default Branch: master
• Last Pushed: 2025-02-12T13:59:37.000Z (3 months ago)
• Last Synced: 2025-02-26T18:23:49.917Z (2 months ago)
• Language: Rust
• Size: 70.3 KB
• Stars: 1
• Watchers: 2
• Forks: 0
• Open Issues: 8
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# json-key-from-value | [![Tests](https://img.shields.io/github/actions/workflow/status/cdown/json-key-from-value/ci.yml?branch=master)](https://github.com/cdown/json-key-from-value/actions?query=branch%3Amaster)

If you often have big, unwieldy blobs of JSON which you have very deep trees

in, it can be a pain to go from a value that you know is the field you want to

retrieve to actually producing the correct selector.

json-key-from-value will, given some JSON and a value to find, tell you how to

select it. If multiple keys or indexes are possible, they will all be printed.

## Usage

For example, given the following JSON:

```

{"data":[{"foo":[

    {"bar":[

        {"id":1,"name":"yes"},

        {"id":2,"name":"no"}

    ]},

    {"baz":[

        {"id":2,"name":null}

    ]}]

},{"qux":[

    {"quux":

        [[1,42],[2,2],[true, false]]

    }]

}]}

```

    % json-key-from-value '"yes"' < json

    ["data"][0]["foo"][0]["bar"][0]["name"]

    % json-key-from-value 2 < json

    ["data"][0]["foo"][0]["bar"][1]["id"]

    ["data"][0]["foo"][1]["baz"][0]["id"]

    ["data"][1]["qux"][0]["quux"][1][0]

    ["data"][1]["qux"][0]["quux"][1][1]

    % json-key-from-value true < json

    ["data"][1]["qux"][0]["quux"][2][0]

    % json-key-from-value null < json

    ["data"][0]["foo"][1]["baz"][0]["name"]

## Installation

    cargo install json-key-from-value