PowerShell 403 HTTP Request With Parameters Containing Square Brackets - powershell

Question

I'm trying to make a PATCH request using the following lines in PowerShell but it is returning a 403:
Try{
$Body = #{
'api_key' = 'myapikey'
'item[status]' = 'unavailable'
} | ConvertTo-Json
$response = Invoke-WebRequest -Method PATCH -Uri "https://api.example.com/store/apikey.json" -Body $Body -ContentType "application/json"
$response.StatusCode
}
Catch [System.Net.WebException]{
$code = [int]$_.Exception.Response.StatusCode
}
Fiddler is returning a 403 with the following message: "{"error":"Parameter item is required"}". Also, the query string in Fiddler is empty. However, a successful request is made when everything is hard-coded into the Uri:
$statusUpdate = Invoke-WebRequest -Method PATCH -Uri "https://api.example.com/store/apikey.json?api_key=myapikey&item[status]=unavailable" -ContentType "application/json"

Answer 1

If that's the code you're actually using to hit the API, your problem appears to simply be due to piping your json body to out-host, thus sending an empty $Body to the API, so you should edit it to do this:
try
{
$Body = #{
'api_key' = 'myapikey'
'item[status]' = 'unavailable'
} | ConvertTo-Json
$response = Invoke-WebRequest -Method PATCH -Uri "https://api.example.com/store/apikey.json" -Body $Body -ContentType "application/json"
$response.StatusCode
}
catch [System.Net.WebException]
{
$code = [int]$_.Exception.Response.StatusCode
}