Content negotiation fails when uploading files

[alexmerlin]

Issue

Content negotiation fails when Content-Type header contains extra data.

Steps to reproduce

Using Postman, try either of the following requests:

• User/Account/Avatar/Create user avatar
• User/My Account/Avatar/Create my avatar

They will fail for 2 reasons:

1. We're missing the below configs from config/autoload/content-negotiation.global.php:

        'user.avatar.create' => [
            'Content-Type' => [
                'multipart/form-data',
            ],
        ],
        'user.my-avatar.create' => [
            'Content-Type' => [
                'multipart/form-data',
            ],
        ],

2. The value of the Content-Type header is not the expected multipart/form-data, but it also includes boundary, for example multipart/form-data; boundary=--------------------------991804545238237537455135. So, when the content negotiation feature tries to compare the value from the request against the configured value, they will not match.

As a result, Dotkernel API returns a 415 Unsupported Media Type response.

Solution

See https://github.com/dotkernel/api/blob/5.0/src/App/src/Middleware/ContentNegotiationMiddleware.php#L68