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Wrong input type in multi-file upload

See original GitHub issue

Q&A

Browser: chrome, mozilla
Swagger-UI version: Swashbuckle.AspNetCore.SwaggerUI v4.0.1
Swagger/OpenAPI version: OpenAPI 3.0

Content & configuration

        [HttpPost]
        public string UploadFiles(ICollection<IFormFile> files)
        {
            return "";
        }

Example Swagger/OpenAPI definition:

    "/api/File": {
      "post": {
        "tags": [
          "File"
        ],
        "operationId": "UploadFiles",
        "consumes": [
          "multipart/form-data"
        ],
        "produces": [
          "text/plain",
          "application/json",
          "text/json"
        ],
        "parameters": [
          {
            "name": "files",
            "in": "formData",
            "required": false,
            "type": "array",
            "items": {
            },
            "collectionFormat": "multi",
            "uniqueItems": false
          }
        ],
        "responses": {
          "200": {
            "description": "Success",
            "schema": {
              "type": "string"
            }
          }
        }
      }
    },

Swagger-UI configuration options:

From Swashbuckle.AspNetCore.SwaggerUI

app.UseSwaggerUI(c => c.SwaggerEndpoint($"/swagger/{SwaggerDocumentVersion}/swagger.json", $"{SwaggerDocumentVersion} docs"));

Describe the bug you’re encountering

Input type is text rather than file when a method receives muliple files (either IEnumerable<IFormFile> or IFormFileCollection) as argument.

Current behavior

real

Expected behavior

expected

Issue Analytics

State:
Created 4 years ago
Comments:5 (2 by maintainers)

Top GitHub Comments

1reaction

webroncommented, Oct 18, 2019

@eduherminio - that’s OpenAPI (Swagger) 2.0, not OpenAPI 3.0. The 2.0 version does not support multi file uploads.

0reactions

eduherminiocommented, Oct 21, 2019

Oops, totally right @webron, I’ll close this and create a new one if I experience issues once I configure the project to use 3.0.

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