azure-metadata-service-1.ps1

# “One-liner” for easily querying the Azure Instance Metadata Service.

"network/interface/0/ipv4/ipAddress/0/publicIpAddress" | Tee-Object -Variable p | Out-Null ; Invoke-RestMethod -Headers @{"Metadata"="true"} -URI "http://169.254.169.254/metadata/instance/$($p)?api-version=2017-08-01&format=text"

# Instead of "network/interface/0/ipv4/ipAddress/0/publicIpAddress" you can use any 
# path throgh the instance metadata json structure.
# You can find a sample json structure here:
# {
#     "compute": {
#         "location": "westus2",
#         "name": "Win10",
#         "offer": "Windows",
#         "osType": "Windows",
#         "placementGroupId": "",
#         "platformFaultDomain": "0",
#         "platformUpdateDomain": "0",
#         "publisher": "MicrosoftVisualStudio",
#         "resourceGroupName": "****",
#         "sku": "Windows-10-N-x64",
#         "subscriptionId": "****",
#         "tags": "",
#         "version": "2017.10.12",
#         "vmId": "****",
#         "vmSize": "Standard_B2s"
#     },
#     "network": {
#         "interface": [
#             {
#                 "ipv4": {
#                     "ipAddress": [
#                         {
#                             "privateIpAddress": "10.1.2.4",
#                             "publicIpAddress": "51.143.***.***"
#                         }
#                     ],
#                     "subnet": [
#                         {
#                             "address": "10.1.2.0",
#                             "prefix": "24"
#                         }
#                     ]
#                 },
#                 "ipv6": {
#                     "ipAddress": []
#                 },
#                 "macAddress": "******"
#             }
#         ]
#     }
# }