* Function eXecution

Command-line JSON processing tool

Features

Install

npm install -g fx

Or via Homebrew

brew install fx

Or download standalone binary from releases

Start interactive mode without passing any arguments.

$ curl ... | fx

Or by passing filename as first argument.

$ fx data.json

Pass a few JSON files.

cat foo.json bar.json baz.json | fx .message

Use full power of JavaScript.

$ curl ... | fx '.filter(x => x.startsWith("a"))'

Access all lodash (or ramda, etc) methods by using .fxrc file.

$ curl ... | fx '_.groupBy("commit.committer.name")' '_.mapValues(_.size)'

Update JSON using spread operator.

$ echo '{"count": 0}' | fx '{...this, count: 1}'
{
  "count": 1
}

Extract values from maps.

$ fx commits.json | fx .[].author.name

Print formatted JSON to stdout.

$ curl ... | fx .

Pipe JSON logs stream into fx.

$ kubectl logs ... -f | fx .message

And try this:

$ fx --life