Erro Invoke-RestMethod: It is not possible to send content with this type of verb

Hi,

 I'm tring run a request in Elasticsearch using PowerShell, but when I try use the JSON request in "-Body" following error is showing:
 
The request without -Body response Http 200. But I need send the JSON Query. 

“Invoke-RestMethod: It is not possible to send content with this type of verb.Invoke-RestMethod: It is not possible to send content with this type of verb.”

$USERNAME = 'user'
$PASSWORD = 'pass'

$credPair = "$($USERNAME):$($PASSWORD)"
$encodedCredentials = [System.Convert]::ToBase64String([System.Text.Encoding]::ASCII.GetBytes($credPair))

$request = '{
  "query": {
    "range": {
      "@timestamp": {
        "time_zone": "-03:00",
        "gte": "now-15m",
        "lte": "now"
      }
    }
  },
  "size": 0,
  "aggs": {
    "total_doc": {
      "value_count": {
        "field": "S_ComputerName"
      }
    },
    "total_per_server": {
      "terms": {
        "field": "S_ComputerName"
      }
    }
  }
}'

$headers = @{}
$headers.Add("Content-Type", "application/json")
$headers.Add("Authorization", "Basic $encodedCredentials")
$session = New-Object Microsoft.PowerShell.Commands.WebRequestSession
$body=@{}
$body.add("Text",$request)
$response = Invoke-RestMethod -Uri 'https://elastic:9200/iis_crm_ocs*/_search?format=JSON&filter_path=aggregations.total_doc%2Caggregations.total_per_server.buckets&=&=' -Method GET -Headers $headers -WebSession $session -ContentType 'application/json' -Body $request

I found a solution. It’s only necessary to change GET for POST.