Working with iDRAC9 Redfish API using PowerShell - Part 3

In this article, I will explain how to access the iDRAC Redfish API using session-based authentication.

[CmdletBinding()]

param(

    [Parameter(Mandatory)]

    [String]$idrac_ip

)

#To fix the connection issues to iDRAC REST API

add-type @"

    using System.Net;

    using System.Security.Cryptography.X509Certificates;

    public class TrustAllCertsPolicy : ICertificatePolicy {

    public bool CheckValidationResult(

        ServicePoint srvPoint, X509Certificate certificate,

        WebRequest request, int certificateProblem) {

        return true;

        }

    }

"@

[System.Net.ServicePointManager]::CertificatePolicy = New-Object TrustAllCertsPolicy

[System.Net.ServicePointManager]::SecurityProtocol = [System.Net.SecurityProtocolType]::Tls12 -bor [System.Net.SecurityProtocolType]::Tls11

#Get iDRAC creds

$Credentials = Get-Credential -Message "Enter iDRAC Creds"

$creds_json = '{"UserName": "$($Credentials.UserName)", "Password": "$($Credentials.GetNetworkCredential().Password)"}'

$creds_json = $ExecutionContext.InvokeCommand.ExpandString($creds_json)

#Using Invoke-WebRequest

try {

    $result1 = Invoke-WebRequest -Uri "https://$($idrac_ip)/redfish/v1/Sessions " -Method POST -ContentType 'application/json' -Headers @{"Accept"="application/json"} -Body $creds_json -Verbose

}

catch {

    Write-Error -Message "Failed to invoke the API! Incorrect creds!"

    $PSCmdlet.ThrowTerminatingError($PSItem)

}

$auth_head = @{

"X-Auth-Token" = $result1.Headers.'X-Auth-Token'

"accept" = "application/json" }

#URI to get basic system info

$u1 = "https://$($idrac_ip)/redfish/v1/Systems/System.Embedded.1"

#Using Invoke-RestMethod

try {

    $output = Invoke-RestMethod -Uri $u1 -Method Get -Headers $auth_head -ContentType 'application/json' -Verbose

}

catch {

    Write-Error -Message "Failed to invoke the API! Incorrect creds!"

    $PSCmdlet.ThrowTerminatingError($PSItem)

}

Write-Output "`nBasic System Info:" $output

Hope it was useful. Cheers!

Related posts

Working with iDRAC9 Redfish API using PowerShell - Part 1

Working with iDRAC9 Redfish API using PowerShell - Part 2

References

iDRAC9 Redfish API guide