InvalidOperation in PowerShell RestMethod API Call using Bearer sending Body as HASHTABLE - powershell

Question

In PowerShell using Invoke-RestMetjhod to call different API´s I am stuck getting an InvalidOperation error when trying to pass both header and body information to the POST call.
My script is:
Set-StrictMode -Version Latest
$ApiToken = Get-Content ‘C:\APIEnergiNet\api_token.txt’
$headers = New-Object "System.Collections.Generic.Dictionary[[String],[String]]"
$headers.Add("Authorization", "Bearer $ApiToken")
$response = Invoke-RestMethod 'https://api.eloverblik.dk/customerapi/api/token' -Method 'GET' -Headers $headers
$GetMetringPointID = Invoke-RestMethod 'https://api.eloverblik.dk/customerapi/api/meteringpoints/meteringpoints?includeAll=true' -Headers #{ Authorization = "Bearer " + $response.result }
foreach($result in $GetMetringPointID){
$CurrentMeteringID = $GetMetringPointID.result.meteringPointId
foreach($Currentresult in $CurrentMeteringID){
$MeterID = $Currentresult
$GetCharges = Invoke-RestMethod 'https://api.eloverblik.dk/customerapi/api/MeteringPoints/MeteringPoint/GetCharges' -Method 'POST' -Headers #{ Authorization = "Bearer " + $response.result } -Body #{ meteringPoints = #( #{meteringPoint = "$Currentresult" } ) }
$GetCharges
}
}
The API needs the following sent in the body :
{
"meteringPoints": {
"meteringPoint": [
"string"
]
}
}
if I create variable $postParams containing the data like this:
$postParams = #{
meteringPoints = #(
#{meteringPoint = "$MeterID" }
)
}
$postParams
it returns:
meteringPoints {System.Collections.Hashtable}
The API has a swagger here https://api.eloverblik.dk/customerapi/index.html
Can anyone help me why I get this error and how to fix it?
Best Regards
Stig :-)
UPDATE WITH LATEST CODE BELOW:
Set-StrictMode -Version Latest
$ApiToken = Get-Content ‘C:\APIEnergiNet\api_token.txt’
$headers = New-Object "System.Collections.Generic.Dictionary[[String],[String]]"
$headers.Add("Authorization", "Bearer $ApiToken")
$response = Invoke-RestMethod 'https://api.eloverblik.dk/customerapi/api/token' -Method 'GET' -Headers $headers
$GetMetringPointID = Invoke-RestMethod 'https://api.eloverblik.dk/customerapi/api/meteringpoints/meteringpoints?includeAll=true' -Headers #{ Authorization = "Bearer " + $response.result }
foreach ($result in $GetMetringPointID)
{
$CurrentMeteringID = $GetMetringPointID.result.meteringPointId
foreach ($Currentresult in $CurrentMeteringID)
{
$MeterID = $Currentresult
$postParams = #{
meteringPoints = #(
#{ meteringPoint = "$MeterID" }
)
} | ConvertTo-Json
$resultlist = Invoke-RestMethod 'https://api.eloverblik.dk/customerapi/api/MeteringPoints/MeteringPoint/GetCharges' -Method 'POST' -ContentType 'application/json' -Headers #{ Authorization = "Bearer " + $response.result } -Body #{ $postParams }
$resultlist
}
}
ERROR I NOW GET:
ParserError: C:\APIEnergiNet\api.ps1:31:245
Line |
31 | … Authorization = "Bearer " + $response.result } -Body #{ $postParams }
| ~
| Missing '=' operator after key in hash literal.

Answer 1

I've made this little PS for you based on yours
$Path = "C:\EnergiNet\"
$TokenFile = $Path + "token.txt"
$JSON_ResponseFile = $Path + "Response.json"
$XML_ResponseFile = $Path + "Response.xml"
$ApiToken = Get-Content $TokenFile
# Get Auth token #
$response = Invoke-RestMethod 'https://api.eloverblik.dk/customerapi/api/token' -Method 'GET' -Headers #{ Authorization = "Bearer " + $ApiToken }
$Auth_Token = $response.result
$body = '{ "meteringPoints": {"meteringPoint": ["571313174xxxxxxxxxxx","571313174xxxxxxxxxxx","571313174xxxxxxxxxxx"] }}'
$headers = #{
'Authorization' = "Bearer " + $response.result
'Accept' = 'application/json'
}
Invoke-RestMethod 'https://api.eloverblik.dk/customerapi/api/meterdata/gettimeseries/2023-01-01/2023-02-01/Quarter' -Method 'POST' -ContentType 'application/json' -Headers $headers -Body $body | ConvertTo-Json -Depth 100 | out-file $JSON_ResponseFile
$headers = #{
'Authorization' = "Bearer " + $response.result
'Accept' = 'application/xml'
}
(Invoke-RestMethod 'https://api.eloverblik.dk/customerapi/api/meterdata/gettimeseries/2023-01-01/2023-02-01/Quarter' -Method 'POST' -ContentType 'application/json' -Headers $headers -Body $body).outerXml | out-file $XML_ResponseFile