How to add additional elements in an existing json file - json

Question

This is what I am doing:
$appParametersXml = [Xml] (Get-Content "$appParameterFilePath\$appParameterFile")
$parameterJsonFile = "$appParameterFilePath\$applicationName"+ "." + $jsonFileName
# Transform the "Parameter" elements into a nested hashtable.
# Convert any values that can be interpreted as [int] to [int] and strip out any comments in the xml file.
$hash = [ordered] #{}
$appParametersXml.Application.Parameters.ChildNodes | Where-Object {$_.NodeType -ne 'Comment'} | % {
$hash[$_.Name] = #{ value = if ($num = $_.Value -as [int]) { $num } else { $_.Value }
}
}
# Wrap the hashtable in a top-level hashtable and convert to JSON.
[ordered] #{
'$schema' = 'https://schema.management.azure.com/schemas/2015-01-01/deploymentParameters.json#'
contentVersion ='1.0.0.0'
parameters = $hash
} | ConvertTo-Json |Out-File $parameterJsonFile
Write-Host "The JSON File is: " $parameterJsonFile
After I build the hash table with existing information from the XML file, I need to add additional parameter values like this Before converting to JSON
"parameters": {
"applicationName": {
"value": "somevalue"
},
"applicationTypeName": {
"value": "somevalue"
},
"applicationTypeVersion": {
"value": "somevalue"
},
Everything that I have tried so far has given me this as additional values. The regular XML values are being converted the correct way but the additional items that I am adding before converting are coming up like this!
"applicationName": "somevalue"
How can i seperate that out on different lines?

Answer 1

So, assuming your input xml file looks something like this ...
<application>
<parameters>
<applicationName>My Awesome App</applicationName>
<!--my awesome comment-->
<applicationTypeName>Mobile App</applicationTypeName>
<applicationTypeVersion>299</applicationTypeVersion>
<!--my other awesome comment-->
</parameters>
</application>
Here is my revised PowerShell ... you can't use if ($num = $_.Value -as [int]) casting as it won't work for 0, as it would be interpreted as false. I prefer to break the steps down and test and check each. Also I've used InnerText for the node value instead of Value as typically Value is evaluated as $null and I'm not sure what your xml looks like.
$fileXml = "./config.xml"
$fileJson = "./config.json"
$xmlContent = [Xml](Get-Content $fileXml)
# Transform the "Parameter" elements into a nested hashtable.
# Set any string values which are integers as [int] and strip out any comments in the xml file.
$parameters = [ordered]#{}
$nodes = $xmlContent.application.parameters.ChildNodes.Where{ $_.NodeType -ne 'Comment' }
foreach ($node in $nodes) {
$parameter = $node.Name
$value = $node.InnerText
if ($value -match "^\d+$") { $value = [int] $value }
$parameters.Add($parameter, #{ value = $value })
}
# if you need to add additional attributes, it's as simple as:
$parameters.Add("newParameter1", #{ value = "newValue1" })
$parameters.Add("newParameter2", #{ value = "newValue2" })
# Wrap the hashtable in a top-level hashtable and convert to JSON.
[ordered]#{
'$schema' = 'https://schema.management.azure.com/schemas/2015-01-01/deploymentParameters.json#'
contentVersion = '1.0.0.0'
parameters = $parameters
} | ConvertTo-Json | Out-File $fileJson
And here is the output saved to the json file:
{
"$schema": "https://schema.management.azure.com/schemas/2015-01-01/deploymentParameters.json#",
"contentVersion": "1.0.0.0",
"parameters": {
"applicationName": {
"value": "My Awesome App"
},
"applicationTypeName": {
"value": "Mobile App"
},
"applicationTypeVersion": {
"value": 299
},
"newParameter1": {
"value": "newValue1"
},
"newParameter2": {
"value": "newValue2"
}
}
}

Answer 2

In case anyone else runs into this, it was as simple as doing this after the hash table gets created with the existing XML file
$appParametersFileName = "$appParameterFilePath\$appParameterFile"
$appParametersXml = [Xml] (Get-Content "$appParametersFileName")
$parameterJsonFile = "$appParameterFilePath\$applicationName"+ "." + $jsonFileName
# Transform the "Parameter" elements into a nested hashtable.
# Convert any values that can be interpreted as [int] to [int] and strip out any comments in the xml file.
$hash = [ordered] #{}
$appParametersXml.Application.Parameters.ChildNodes | Where-Object {$_.NodeType -ne 'Comment'} | % {
$hash[$_.Name] = #{ value = if ($num = $_.Value -as [int]) { $num } else { $_.Value }
}
}
$hash["newvalue1"]=#{ value="value1"}
$hash["newvalue2"]=#{ value="value2"}
# Wrap the hashtable in a top-level hashtable and convert to JSON.
[ordered] #{
'$schema' = 'https://schema.management.azure.com/schemas/2015-01-01/deploymentParameters.json#'
contentVersion ='1.0.0.0'
parameters = $hash
} | ConvertTo-Json |Out-File $parameterJsonFile
Write-Host "The JSON File is: " $parameterJsonFile