Missing file browser in "Try it out" for multipart/form file uploads #3784
Description
Previously (in OpenAPI 2.0), when creating an endpoint which takes a file upload via a multipart/form POST request, the Try it out section in Swagger UI showed a Choose File button to select a file from my harddisk which then got uploaded when clicking the execute button.
Following the docs on how to do such uploads in OpenAPI 3.0.0, however, I am missing that button in Swagger UI and see a textbox instead with a JSON representation of the schema.
Is that expected behaviour (as in not yet implemented for OpenAPI 3.0.0) or is the file upload in my API definition incorrectly written?
| Q | A |
|---|---|
| Bug or feature request? | Could be both, depending on if this is expected behaviour |
| Which Swagger/OpenAPI version? | OpenAPI 3.0.0 |
| Which Swagger-UI version? | 3.3.2 |
| How did you install Swagger-UI? | https://editor.swagger.io and self-hosted dist folder on nginx |
| Which browser & version? | Chrome 62.0 & Opera 48.0 |
| Which operating system? | Ubuntu 14.04 |
Demonstration API definition
Working example in OpenAPI 2.0:
swagger: '2.0'
info:
title: Some API
version: '1'
paths:
/conversion/nmea/geojson:
post:
consumes:
- multipart/form-data
parameters:
- in: formData
name: file
type: file
produces:
- text/plain
responses:
'200':
description: OK
schema:
type: string
example: "File upload successful"Non-working example in OpenAPI 3.0.0:
openapi: 3.0.0
info:
title: Some API
version: "1"
paths:
/upload:
post:
requestBody:
content:
multipart/form-data:
schema:
type: object
properties:
file:
type: string
format: binary
responses:
'200':
description: OK
content:
text/plain:
schema:
type: string
example: "File upload successful"Expected Behavior
Current Behavior
