ScienceLogic_SL1

0.2.1

internal/functions/Invoke-SL1Request.ps1

Function Invoke-SL1Request {
    [Cmdletbinding()]
    Param (
        [Parameter(Mandatory=$true, Position=0)]
        [ValidateSet('Get','Post','Put','Delete')]
        [String]$Method,

        [Parameter(Mandatory=$true, Position=1)]
        [URI]$Uri,

        [Parameter(Position=2)]
        [ValidateScript( {
            try {
                    if ($_ -ne "") {
                        ConvertTo-Json (ConvertFrom-Json $_) | Out-Null
                    }
                    $true
            } Catch [system.Exception] {
                $false
            }
        })]
        [string]$Body,

        [Parameter(Position=3)]
        [ValidateSet('application/json; charset=utf-8','application/xml; charset=utf-8')]
        [string]$ContentType = 'application/json; charset=utf-8'
    )

    Process {
        <# To prevent progress bars, showed by Invoke-WebRequest, we set ProgressPreference to SilentlyContinue for this function. #>
        $ProgressPreference = 'SilentlyContinue'

        Remove-Variable IWRError -ErrorAction SilentlyContinue

        switch ($Method) {
            "Get" {
                # Variable BODY can not (yet) be used in this mode!
                #If we want to use body and support form-based filters, we need to use a dotnet webbrowser.
                Write-Verbose "In Get Mode"
                try {
                    $IWRResponse = Invoke-WebRequest -Method $Method -Uri $Uri -MaximumRedirection 0 -Credential $Script:SL1Defaults.Credential -ContentType $ContentType -ErrorAction SilentlyContinue -Verbose:$false
                    switch ([System.Net.HttpStatusCode]($IWRResponse.StatusCode)) {
                        ( [System.Net.HttpStatusCode]::OK ) { $IWRResponse }
                        ( [System.Net.HttpStatusCode]::Redirect ) { Invoke-SL1Request -Method $Method -Uri "$($Script:SL1Defaults.APIRoot)$($IWRResponse.Headers['Location'])" }
                    }
                } Catch [System.Net.WebException] {
                    Out-WebError -WebError $_.Exception
                } Catch [System.Exception] {
                    throw $_
                }
            }
            "Post" {
                Write-Verbose "In Post Mode"
                try {
                    if ($body) {
                        $IWRResponse = Invoke-WebRequest -Method $Method -Uri $Uri -MaximumRedirection 0 -Credential $Script:SL1Defaults.Credential -ContentType $ContentType -Body $Body -ErrorAction Stop -errorvariable IWRError -Verbose:$false
                        switch ([System.Net.HttpStatusCode]($IWRResponse.StatusCode)) {
                            ( [System.Net.HttpStatusCode]::OK )       { $IWRResponse }
                            ( [System.Net.HttpStatusCode]::Created )  { $IWRResponse }
                            ( [System.Net.HttpStatusCode]::Accepted ) { $IWRResponse }
                            ( [System.Net.HttpStatusCode]::Redirect ) { Invoke-SL1Request -Method $Method -Uri "$($Script:SL1Defaults.APIRoot)$($IWRResponse.Headers['Location'])" }
                        }
                    }
                } Catch [System.Net.WebException] {
                    Out-WebError -WebError $_.Exception
                } Catch [System.Exception] {
                    throw $_
                }
            }
            "Delete" {
                Write-Verbose "In Delete Mode"
                throw "Not yet implemented"
            }
            "Put" {
                Write-Verbose "In Put Mode"
                throw "Not yet implemented"
            }
        }
    }
}