tldr/pages/common/ajson.md

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# ajson
> Executes JSONPath on JSON objects.
> More information: <https://github.com/spyzhov/ajson>.
- Read JSON from a file and execute a specified JSONPath expression:
`ajson '{{$..json[?(@.path)]}}' {{path/to/file.json}}`
- Read JSON from `stdin` and execute a specified JSONPath expression:
`cat {{path/to/file.json}} | ajson '{{$..json[?(@.path)]}}'`
- Read JSON from a URL and evaluate a specified JSONPath expression:
`ajson '{{avg($..price)}}' '{{https://example.com/api/}}'`
- Read some simple JSON and calculate a value:
`echo '{{3}}' | ajson '{{2 * pi * $}}'`