Zystkmt

I am trying to use the Invoke-Restmethod to call a set of API's, but it fails with the below error, i have also posted the same json format, can some let me know what could be wrong ?

    ### Ignore TLS/SSL errors

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

[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12





#Create URL string for Invoke-RestMethod

$urlsend = 'https://' + 'vrslcm-01a.corp.local/lcm/api/v1/' + '/login'





#Credential



$Username = "admin@localhost"

$password = "VMware1!"



$basicAuth = "Basic " + [System.Convert]::ToBase64String([System.Text.Encoding]::ASCII.GetBytes("$($Username):$Password"))

    $headers = @{



        "description"= "Testing Authentication"

    }



    $body = @{

                    $raw= '{nt"username": "admin@localhost",nt"password": "vmware"n}'

                    "mode"= $raw

            }



Invoke-RestMethod -Method POST -uri $urlsend -Headers $headers -Body $body -ContentType 'application/json'

Here is the sample jSON which iam trying to invoke via powershell, it consists of the header and the body. I need to understand how we could call the same jSON POSTMAN example via the PowerShell Invoke-RestMethod

"item": [

        {

            "name": "authorization",

            "description": "",

            "item": [

                {

                    "name": "Login",

                    "event": [

                        {

                            "listen": "test",

                            "script": {

                                "type": "text/javascript",

                                "exec": [

                                    "var response=JSON.parse(responseBody)",

                                    "postman.setEnvironmentVariable("token", response.token)"

                                ]

                            }

                        }

                    ],

                    "request": {

                        "url": "{{Server}}/lcm/api/v1/login",

                        "method": "POST",

                        "header": [

                            {

                                "key": "Content-Type",

                                "value": "application/json",

                                "description": ""

                            }

                        ],

                        "body": {

                            "mode": "raw",

                            "raw": "{nt"username": "admin@localhost",nt"password": "vmware"n}"

                        },

                        "description": ""

                    },

                    "response": 

                },

                {

                    "name": "Logout",

                    "request": {

                        "url": "{{Server}}/lcm/api/v1/logout",

                        "method": "POST",

                        "header": [

                            {

                                "key": "x-xenon-auth-token",

                                "value": "{{token}}",

                                "description": ""

                            }

                        ],

                        "body": {},

                        "description": ""

                    },

                    "response": 

                }

            ]

        },

Like the error states, the problem is your hash definition.

A null key is not allowed in a hash literal.

PowerShell tries to evaluate $raw as a hash table key. Since it hasn't been defined before it is null and fails because null is not allowed. Try it like this:

$raw= '{nt"username": "admin@localhost",nt"password": "vmware"n}'



$body = @{         

    "mode"= $raw

}

make $raw to a hashtable like

$raw = @{

    username=$Username

    password=$Password

}

add this hashtable to the $body hashtable

$body = @{         

    mode= $raw

}

but now it still is a hashtable the api cannot use. thus convert it to json like

$jsonBody = $body | ConvertTo-Json

using $jsonBody should then work when used like

Invoke-RestMethod -Method POST -uri $urlsend -Headers $headers -Body $jsonBody -ContentType 'application/json'