How to customize auto-generated file upload name field in custom connector action?

[janne_]

Hi,

I'm creating a custom connector with the ability to upload a file.

This is the swagger definition of the action:

"/action/files": {
  "post": {
    "operationId": "UploadFile",
    "summary": "Upload file",
    "consumes": [
      "multipart/form-data"
    ],
    "parameters": [
      {
        "$ref": "#/parameters/regionParam"
      },
      {
        "$ref": "#/parameters/projectIdParam"
      },
      {
        "name": "path",
        "x-ms-summary": "Folder path",
        "description": "Folder path to the file",
        "in": "query",
        "type": "string",
        "default": "/"
      },
      {
        "name": "content",
        "x-ms-summary": "File content",
        "description": "File content to upload",
        "in": "formData",
        "type": "file",
        "required": true
      }
    ],
    "responses": {
      "200": {
        "description": "OK",
        "schema": {
          "type": "object",
          "properties": {
            "fileId": {
              "type": "string",
              "x-ms-summary": "File id"
            },
            "name": {
              "type": "string",
              "x-ms-summary": "File name"
            }
          }
        }
      }
    }
  }
}

 This is a screenshot of what the above definition produces:

How do I customize the description/x-ms-summary text of the automatically generated "File content (file name)" / "File content to upload (file name)" field? I would like to change it to something more user-friendly like "File name" / "File name with extension".

[murshed]

Hi @janne_ 

Here is an example of how to do it: https://powerusers.microsoft.com/t5/Building-Flows/Custom-connector-with-action-that-uses-formdata-t...

Basically you create three fields with formdata. Please let me know if this works.

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[janne_ · Accepted solution]

That example doesn't seem to be valid. It uses { "type": "string", "format": "file" } which is not a swagger data type. But it made me take a second look at the documentation, and I noticed that an another way to upload arbitrary binary data is to use { "type": "string", "format": "binary" }, so this seems to work after also modifying the backend to read the file directly from the raw request body:

{
  "name": "filename",
  "x-ms-summary": "File name",
  "description": "File name with extension",
  "in": "query",
  "type": "string",
  "required": true
},
{
  "name": "content",
  "x-ms-summary": "File content",
  "description": "File content to upload",
  "in": "body",
  "schema": {
    "type": "string",
    "format": "binary"
  },
  "required": true
}