Getting projects using the 3 methods

getprojects.ps1

#Using Octopus.client (recommended if you are planning on automating more than just this simple GET in the future)
# You can get this dll from your Octopus Server/Tentacle installation directory or from
# https://www.nuget.org/packages/Octopus.Client/
Add-Type -Path 'Octopus.Client.dll' 

$apikey = ''
$octopusURI = ''

$endpoint = New-Object Octopus.Client.OctopusServerEndpoint $octopusURI,$apikey 
$repository = New-Object Octopus.Client.OctopusRepository $endpoint

$projects = $repository.Projects.findall()

$projects

#Using Octoposh, an open source project that uses the Octopus API to automate many Octopus' tasks. More than recommended if you're gonna keep using the API to automate processes.
#Get-Octoposh -> http://dalmirog.github.io/OctoPosh/
#Wiki with list of all cmdlets -> https://github.com/Dalmirog/OctoPosh/wiki
$projects = Get-OctopusProject
$projects

#Using RAW API and invoke-webrequest
$OctopusURL = ""
$OctopusAPIKey = ""
$header = @{ "X-Octopus-ApiKey" = $OctopusAPIKey }

$Projects = (Invoke-WebRequest $OctopusURL/api/projects -Headers $header).content | ConvertFrom-Json | Select -ExpandProperty Items

$Projects