Runtime fails to serialize json into hashtable

Repro steps

Provide the steps required to reproduce the problem:

1. Create a powershell function with the following parameters
2. add an http trigger function with following code:

using namespace System.Net
param($Request, $TriggerMetadata)
Push-OutputBinding -Name Response -Value ([HttpResponseContext]@{
    StatusCode = [HttpStatusCode]::OK
    Body = $Request.Body.GetType()
})

1. call the function with something like this:

{"buildId":"id","sourceVersion":"version","scopes":["/subscriptions/fdbb6770-4977-44e9-9ee4-4cf0fcc1e6b3","/subscriptions/51c2c6a2-e6bd-492d-8a9d-0b02d6a325d8"],"certValue":"MIIDDjCCAfagAwIBAgIQFZlpQaNVZYpFor0BFa4zHzANBgkqhkiG9w0BAQUFADAaMRgwFgYDVQQDDA9zZWNvcHMtMDEwLWhhc2gwHhcNMjEwODEzMDc1MDQzWhcNMjEwODE0MTE1MDQzWjAaMRgwFgYDVQQDDA9zZWNvcHMtMDEwLWhhc2gwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDaZTnBjT+szkqvd4FZS2hm+oww9jVZZAxwBNhLLhbq+N7y9EgtiWVsdlFgmoKH3hBaZca1631hqGafNdRGHZJu8DTmnyzgpHZLitzlmq3n4G65yC2kr4r88VSJvJieoCdSmOLjdmkl5Nm2Cedvp7EIs/u5VmjFw6dtYI1pgRmJAECYsxsKhABRnsUua7i2gAqEQs/TMgMoUXNnZ9y7aEDoLWgN7WlvMoOi2gFDFIxYhGoEQXD+EOexawbRMS2kfvAG2dE/fotSruSAf4zIabD0KjMVsAxHZiaAJ2LDEf/wVDWMzZ8CLq3R3XD807qE9RRbshZ+TefHZhBO7j/y00OBAgMBAAGjUDBOMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggrBgEFBQcDAgYIKwYBBQUHAwEwHQYDVR0OBBYEFHy8F1cMI0ajtKr5+aizJNeBLatXMA0GCSqGSIb3DQEBBQUAA4IBAQCvPpBv8Uz2loVd/VhcUQNuCcam14vl5AS/mW72A37MVqi5BOjDLfUFzkrAIUiPRZSwuy+4JQrwRCdIZidWpcQXILwGA2FwXE7P4K4TNAKru2EUgbHL1TMUM73+/Epn2Pj5VtA5zrYbmToNYkDp3juYPieGV//9A112rStFc1mAl+OziQb0YMv2X255ECOe+eliSODxzupzUs9VEHsYPHWJLPnufVsGrGRSEmpbu3dy+YsTbB6dtLZE2AqdTDPhbKJBvLb78FgGiDide4gcp4MhC1Rm9k2NYpNf/EDcPHcWRGvSZ+49JsZup9CWec/7EbZ5MrGJxHt2fpw19khAGyMw"}

Expected behavior

returns System.Collections.Hashtable

Actual behavior

returns System.String

Known workarounds

forcefully cast to an object with $Request.Body | ConvertFrom-Json

Related information

https://docs.microsoft.com/en-us/azure/azure-functions/functions-reference-powershell?tabs=portal#request-object

• using powershell
• works with a simpler json payload (ie: {"name": "please_work"})
• json is valid (RFC 8259)
• bindings:

{
  "bindings": [
    {
      "authLevel": "function",
      "type": "httpTrigger",
      "direction": "in",
      "name": "Request",
      "methods": [
        "get",
        "post"
      ]
    },
    {
      "type": "http",
      "direction": "out",
      "name": "Response"
    }
  ]
}

[Francisco-Gamino]

To close on this, to deserialize the body into a hashtable, the request should specify the Content-Type header to be ‘application/json’. We will update the docs to reflect this.

[Francisco-Gamino]

@4c74356b41 – I’ve created a separate issue to track the Durable activities scenario: Runtime fails to serialize json into hashtable for Durable activities.