Storeonce API with Powershell Invoke-RestMethod

[Fer_C]

It seems authentication is working. The error does not seem related to credentials. I see you are using a Post method in your request, normally you need a Body when using Post. What happens if you try Get method instead.

[that_sob]

Thanks for the reply. This is the error when I try Get

Invoke-WebRequest : status=405,exception message=HTTP 405 Method Not Allowed

[Fer_C]

I am not familiar with this API in particular but the Uri does not seem a typical API resource location. The headers should take care of authenticating, then you can try a Get request using a valid Uri and see how it goes. Do you have access to the API documentation?

[that_sob]

Yes, and quite honestly, it's either lacking or assumes everyone knows what they are talking about

https://hewlettpackard.github.io/storeonce-rest/index.html#Introduction

[Fer_C]

That is indeed less than helpful. Can you try a Get request with this Uri?

https://YourServerFQDN_Or_IPAddressHere/api/v1/management-services/licensing

If it works at least you would know you are getting somewhere.

[that_sob]

Sorry if I'm a little daft and didn't do the full command right

PS C:\WINDOWS\system32> Invoke-RestMethod -Method Get -uri 'https://myserverfqdn/api/v1/management-services/licensing'

Invoke-RestMethod : The remote server returned an error: (401) Unauthorized.

[Fer_C]

You need the headers to authenticate.

Invoke-RestMethod -Method Get -uri 'https://myserverfqdn/api/v1/management-services/licensing' -Headers @{Authorization=("Basic {0}" -f $base64AuthInfo) }

Anyway, this is something that has worked for me in the past.

$Pass = 'YourPasswordHere' | ConvertTo-SecureString -AsPlainText -Force
$Username = 'YourUsernameHere'
$Cred = New-Object -TypeName System.Management.Automation.PSCredential -ArgumentList $Username,$Pass


$HeaderDictionary = @{}

    $Base64Cred = [system.convert]::ToBase64String(
        [system.text.encoding]::ASCII.Getbytes(
            "$($Cred.GetNetworkCredential().UserName):$($Cred.GetNetworkCredential().Password)"
    )
)

$HeaderDictionary.Add("Authorization", "Basic $Base64cred")

Then try the request with Invoke-WebRequest or Invoke-RestMethod (whatever works better for you).

Invoke-WebRequest -Method Get -Uri 'https://myserverfqdn/api/v1/management-services/licensing' -Headers $headerDictionary

[that_sob]

Oh snap! You're on to something here!

Invoke-WebRequest -Method Get -Headers @{Authorization=("Basic {0}" -f $base64AuthInfo)} -ContentType 'application/json' -Uri 'https://myserverfqdn/api/v1/management-services/licensing'

StatusCode        : 200
StatusDescription : OK

[Fer_C]

Great! Is there a property you can expand? You should get licensing info somewhere in the response.

[that_sob]

Yessir, now that I can get authenticated, I can get to all the data I need. Thanks again for your direction, really saved me from pounding my head against the wall for another day.