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Documentation

The fx can work in two modes: as a reducer or an interactive viewer.

To start the interactive mode pipe a JSON into fx:

$ curl ... | fx

Or you can pass a filename as the first parameter:

$ fx data.json

Reducers

Use JavaScript, Python, or Ruby.

Streaming mode

The fx supports line-delimited JSON streaming or concatenated JSON streaming.

$ echo '
> {"message": "hello"}
> {"message": "world!"}
> ' | fx .message
hello
world!

Interactive mode

Type ? to see the full list of available shortcuts while in the interactive mode.

Search

Press / and type regexp pattern to search in the current JSON. Search is performed on the internal representation of the JSON without newlines.

Type n to jump to the next result, and N to the previous

Selecting text

You can't just select text in fx. This is due to the fact that all mouse events are redirected to stdin. To be able to select again you need to instruct your terminal not to do it. This can be done by holding special keys while selecting:

Key	Terminal
`Option`+`Mouse`	iTerm2, Hyper
`Fn`+`Mouse`	Terminal.app
`Shift`+`Mouse`	Linux

Configs

Next configs available for fx via environment variables.

Name	Values	Description
`FX_LANG`	`js` (default), `node`, `python`, `python3`, `ruby`	Reducer type.
`FX_THEME`	`0` (disable colors), `1` (default), `2..9`	Color theme.
`FX_SHOW_SIZE`	`true` or `false` (default)	Show size of arrays and object in collapsed previews.

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