PowerShell JSON adding value format - json

Question

I am adding data to a json file. I do this by
$blockcvalue =#"
{
"connectionString":"server=(localdb)\\mssqllocaldb; Integrated Security=true;Database=$database;"
}
"#
$ConfigJson = Get-Content C:\Users\user\Desktop\myJsonFile.json -raw | ConvertFrom-Json
$ConfigJson.data | add-member -Name "database" -value (Convertfrom-Json $blockcvalue) -MemberType NoteProperty
$ConfigJson | ConvertTo-Json| Set-Content C:\Users\user\Desktop\myJsonFile.json
But the format comes out like this:
{
"data": {
"database": {
"connectionString": "server=(localdb)\\mssqllocaldb; Integrated Security=true;Database=mydatabase;"
}
}
}
but I need it like this:
{
"data": {
"database":"server=(localdb)\\mssqllocaldb; Integrated Security=true;Database=mydatabase;"
}
}
}
Can someone help please?

Answer 1

Here's my function to prettify JSON output:
function Format-Json {
<#
.SYNOPSIS
Prettifies JSON output.
.DESCRIPTION
Reformats a JSON string so the output looks better than what ConvertTo-Json outputs.
.PARAMETER Json
Required: [string] The JSON text to prettify.
.PARAMETER Indentation
Optional: The number of spaces to use for indentation. Defaults to 2.
.PARAMETER AsArray
Optional: If set, the output will be in the form of a string array, otherwise a single string is output.
.EXAMPLE
$json | ConvertTo-Json | Format-Json -Indentation 4
#>
[CmdletBinding()]
Param(
[Parameter(Mandatory = $true, Position = 0, ValueFromPipeline = $true)]
[string]$Json,
[int]$Indentation = 2,
[switch]$AsArray
)
# If the input JSON text has been created with ConvertTo-Json -Compress
# then we first need to reconvert it without compression
if ($Json -notmatch '\r?\n') {
$Json = ($Json | ConvertFrom-Json) | ConvertTo-Json -Depth 100
}
$indent = 0
$Indentation = [Math]::Abs($Indentation)
$regexUnlessQuoted = '(?=([^"]*"[^"]*")*[^"]*$)'
$result = $Json -split '\r?\n' |
ForEach-Object {
# If the line contains a ] or } character,
# we need to decrement the indentation level unless it is inside quotes.
if ($_ -match "[}\]]$regexUnlessQuoted") {
$indent = [Math]::Max($indent - $Indentation, 0)
}
# Replace all colon-space combinations by ": " unless it is inside quotes.
$line = (' ' * $indent) + ($_.TrimStart() -replace ":\s+$regexUnlessQuoted", ': ')
# If the line contains a [ or { character,
# we need to increment the indentation level unless it is inside quotes.
if ($_ -match "[\{\[]$regexUnlessQuoted") {
$indent += $Indentation
}
$line
}
if ($AsArray) { return $result }
return $result -Join [Environment]::NewLine
}
Use it like so:
$ConfigJson | ConvertTo-Json | Format-Json | Set-Content C:\Users\user\Desktop\myJsonFile.json

Answer 2

Replace
(Convertfrom-Json $blockcvalue)
with
(Convertfrom-Json $blockcvalue).connectionString
Then your output object's data.database property will directly contain the "server=(localdb)\\..." value, as desired, not via a nested object that has a connectionString property.

Answer 3

There is one simple Newtonsoft.Json Parser which makes it rly simple to get required format:
Import-Module Newtonsoft.Json
$path = "C:\..."
$json = Get-Content -Path $path -Raw
$parsedJson = [Newtonsoft.Json.Linq.JToken]::Parse($json);
Set-Content $path $parsedJson.ToString();
Enjoy ;)