Getting 'Bad Request' and 'Invalid query definition' when calling Azure REST API - azure

Question

I'm trying to call an Azure REST API endpoint to get information my daily usage cost.
I'm using Powershell 7.2 and here's my code:
$uri = 'https://management.azure.com/subscriptions/{subscription id}/providers/Microsoft.CostManagement/query?api-version=2021-10-01'
$token = '{generated bearer token string}'
$securetoken = ConvertTo-SecureString $token -AsPlainText -Force
$body = #{
type = 'Usage'
timeframe = 'MonthToDate'
dataset = #{
granularity = 'Daily'
aggregation = #{
totalCost = #{
name = 'PreTaxCost'
function = 'Sum'
}
}
grouping = #(
#{
type = 'Dimension'
name = 'ServiceName'
}
)
}
}
$costresponse = Invoke-WebRequest -Uri $uri -Method Post -Authentication Bearer -Token $securetoken -Body $body
Write-Host $costresponse
Here's the request body example from the Microsoft documentation I'm trying to emulate:
{
"type": "Usage",
"timeframe": "TheLastMonth",
"dataset": {
"granularity": "None",
"aggregation": {
"totalCost": {
"name": "PreTaxCost",
"function": "Sum"
}
},
"grouping": [
{
"type": "Dimension",
"name": "ResourceGroup"
}
]
}
}
When I run the code I get this error message:
Line |
27 | … tresponse = Invoke-WebRequest -Uri $uri -Method Post -Authentication …
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| {"error":{"code":"BadRequest","message":"Invalid query definition: Missing dataset granularity; valid
| values: 'Daily'.\r\n\r\n (Request ID: c6ead005-85b3-4ebe-9b46-........)"}}
I think the error has to do with the body syntax but I can't figure out what is the issue. I'm following this Microsoft documentation: https://learn.microsoft.com/en-us/rest/api/cost-management/query/usage
EDIT:
I tried converting the body to JSON and adding a depth parameter like this:
$costresponse = Invoke-WebRequest -Uri $uri -Method Post -Authentication Bearer -Token $securetoken -Body ($body|ConvertTo-Json -Depth 5)
And now I get a slightly different error message:
Line |
26 | … tresponse = Invoke-WebRequest -Uri $uri -Method Post -Authentication …
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| {"error":{"code":"BadRequest","message":"Invalid query definition, Dataset is invalid or not supplied.
| (Request ID: cf6a4b8f-88e8-4037-aa33-904......)"}}

Answer 1

I needed to add -ContentType 'application/json' to my Invoke-WebRequest function to get it to work. Thanks to #bluuf for the suggestion.