Given a standard json string value:
$jsonString = '{ "baz": "quuz", "cow": [ "moo", "cud" ], "foo": "bar" }'
How can I get this to be all pretty with newlines, preferably without brute-force regex?
Simplest method I've found so far is:
$jsonString | ConvertFrom-Json | ConvertTo-Json
However, that seems kinda silly.
PowerShell makes it easy to modify JSON by converting JSON to a PSCustomObject. The object can then be modified easily like any other object. The object can then be exported back out using ConvertTo-Json.
The ConvertFrom-Json cmdlet converts a JavaScript Object Notation (JSON) formatted string to a custom PSCustomObject object that has a property for each field in the JSON string. JSON is commonly used by web sites to provide a textual representation of objects.
Works for me. Parentheses make sure get-content is done before piping. Default depth of convertto-json is 2, which is often too low.
function pjson ($jsonfile) { (get-content $jsonfile) | convertfrom-json | convertto-json -depth 100 | set-content $jsonfile }
If you really don't want to go down the simplest route, which is to use inbuilt PowerShell functions | ConvertFrom-Json | ConvertTo-Json
, here is another method, using JSON.net
# http://james.newtonking.com/projects/json-net.aspx Add-Type -Path "DRIVE:\path\to\Newtonsoft.Json.dll" $jsonString = '{ "baz": "quuz", "cow": [ "moo", "cud" ], "foo": "bar" }' [Newtonsoft.Json.Linq.JObject]::Parse($jsonString).ToString()
I put this in my profile
function PrettyPrintJson {
param(
[Parameter(Mandatory = $true, ValueFromPipeline = $true)]
$json
)
$json | ConvertFrom-Json | ConvertTo-Json -Depth 100
}
Which works with pipes, and can be auto-completed, so it's at least somewhat less typing:
cat .\file.json | PrettyPrintJson
curl https://api.twitter.com/1.1/statuses/user_timeline.json | PrettyPrintJson
Adding to @JS2010's answer I added logic to escape out certain characters and clean up my output even further. The parenthesis seems key and -depth
is a big one since you can lose details without it, from what I've seen, on depth that goes beyond the default of 5, I believe it is.
function Format-Json ($JSON)
{
$PrettifiedJSON = ($JSON) | convertfrom-json | convertto-json -depth 100 | ForEach-Object { [System.Text.RegularExpressions.Regex]::Unescape($_) }
$PrettifiedJSON
}
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