CSV File upload in Logic Apps using multipart/form-data

Question

I have an external rest api which accept two parameters, one parameter is .csv file and another one is string value (text). Below How I implemented in HTTP connector, code view is pasted below.

Any idea will be greatly appreciated, how to fix the issue.

Answer 1

Hi @Pratik Sharma - Thanks for providing the above. Just to double-check, is the URL of the API that you're calling the following? (works on Postman but not via Logic Apps?)

If so, it looks like a hostname pointing to a server running on your local network so when Logic Apps attempts to call the same URL via its HTTP connector, it's not able to resolve the hostname on the internet.
UPDATE:
When constructing multipart request using the HTTP connector, you'll want to describe the request using JSON as shown below:

{
  "$content-type": "multipart/form-data",
  "$multipart": [
    {
      "body": "contents of a file 1",
      "headers": {
        "Content-Disposition": "form-data; name=\"file1\"; filename=\"file1_name.txt\"",
        "Content-type":"text/plain"
      }
    },
    {
      "body": "contents of a file 2",
      "headers": {
        "Content-Disposition": "form-data; name=\"file2\"; filename=\"file2_name.txt\"",
        "Content-type":"text/plain"
      }
    }
  ]
}

and add it in the Body field of the Connector as shown here:

For more info, here's the doc on the matter: Content with multipart/form-data type

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Answer 2

I believe you want to create a multipart form data .

Check this if it helps : https://medium.com/version-1/azure-logic-apps-how-to-post-multipart-and-form-data-dbc2e8640c67

Check if correct "Content-Type" header, if it works in postman check what header in console and replicate in Logic App Request.

Regards AF