VSTS Rest API fails from Azure logic app but succeeds from Postman

Question

I have an Azure logic app that uses a "Send HTTP request" block to send a REST API call to VSTS to create an incident. The call fails with "HTTP Error 400. The request hostname is invalid.".

I tried the same request from Postman and the request succeeded. To make sure that I am making the same request I copied the URI, the headers, the body from the logic app.

How can I further investigate what is going on? Is there a log in VSTS where I can find out more info. Any help, any suggestion is highly appreciated.

Here you have the code of the "HTTP request block"

{
"inputs": {
    "method": "POST",
    "uri": "https://dev.azure.com/<your-vsts-organization>/<your-vsts-project>/_apis/wit/workitems/$Incident?api-version=4.1",
    "headers": {
        "Authorization": "Basic .................................",
        "Content-Type": "application/json-patch+json"
    },
    "body": "[
    {
    "op": "add",
    "path": "/fields/System.Description",
    "from": null,
    "value": "@{body('Parse_JSON_2')['Description']}"
  },
  {
    "op": "add",
    "path": "/fields/System.Title",
    "from": null,
    "value": "@{body('Parse_JSON_2')['Title']}"
  },
  {
    "op": "add",
    "path": "/fields/System.IterationPath",
    "from": null,
    "value": "<your-iteration-path>"
  },
  {
    "op": "add",
    "path": "/fields/System.AreaPath",
    "from": null,
    "value": "<your-area-path>"
  },
  {
    "op": "add",
    "path": "/fields/Microsoft.VSTS.Common.Priority",
    "from": null,
    "value": "2"
  },
  {
    "op": "add",
    "path": "/fields/Microsoft.VSTS.Common.Severity",
    "from": null,
    "value": "2 - High"
  },
  {
    "op": "add",
    "path": "/fields/Microsoft.VSTS.CMMI.HowFound",
    "from": null,
    "value": "Azure Monitoring Alert"
  },
]"
}

}

Here you have a screenshot of the request block:

Answer 1

We could easily do that with Azure Logic App - Azure DevOps connector.

I do a demo for creating an Azure DevOps workitem.

The following is the detail steps:

1.Create a logic App and send an http request to Azure DevOps action

2.Connect to Azure Devops and add the related information, for information please refer to the screenshot.

3. Test it on my side