json-merge

given multiple streams of newline delimited JSON data perform a merge/extend on each object in the stream

!dat

usage

``
npm install json-merge -g
Usage: json-merge [options] [options] [...]

Options
--parse= Parse the precedent source with
`

sources can be one of 3 things:

- paths to newline-delimited json data files
- HTTP uris that return newline-delimited json data
- JSONStream selector syntax to be used to parse stdin into a stream of JS objects

examples

$3

e.g. given a file a.json:

`
{"foo": "bar"}
`

and a file b.json:

`
{"taco": "pizza"}
`

then running:

`
json-merge a.json b.json
`

would output:

`
{"foo": "bar", "taco": "pizza"}
`

$3

you can also specify JSONStream query syntax and json-merge will parse stdin

e.g. if foobar.json is:

`
{
"data": [
{
"a": {
"all": "lowercase"
},
"b": {
"ALL": "CAPS"
}
}
]
}
`

then running:

`
cat foobar.json | json-merge "data..a" "data..b"
`

would output:

`
{"all":"lowercase","ALL":"CAPS"}
`

$3

A given a file food1.json:

`
{
"salty":
{
"tacos": "muybien",
"pretzel": "jawohl"
}
}

`

and a file food2.json:

`
{
"sweet":
{
"waffle": "delicious",
"pancake": "yummy"
}
}
`

then running:

`
json-merge food1.json --parse="salty" food2.json --parse="sweet"
`

would output:

``
{"tacos":"muybien","pretzel":"jawohl","waffle":"delicious","pancake":"yummy"}