Support for different content with the same http code.

[pedropmartiniano]

Prerequisites

• I have written a descriptive issue title
• I have searched existing issues to ensure the bug has not already been reported

Fastify version

4.23.2

Plugin version

8.14.0

Node.js version

20.10.0

Operating system

Linux

Operating system version (i.e. 20.04, 11.3, 10)

20.04

Description

I'm using the oneOf in my schema, but it's not working how it should be, he just replace the return of my endpoint with the first return properties of my oneOf.

Steps to Reproduce

200: {
            description: 'Successful response',
            oneOf: [
                {
                    type: 'object',
                    properties: {
                        success: { type: 'boolean', example: true },
                        data: {
                            type: 'array',
                            items: {
                                type: 'object',
                                properties: {
                                    id: { type: 'string' },
                                    id_usuario: { type: 'string' },
                                    id_posto: { type: 'string' }
                                }
                            }
                        }
                    }
                },
                {
                    type: 'object',
                    properties: {
                        success: { type: 'boolean', example: true },
                        message: {
                            type: 'string'
                        }
                    }
                },
            ]
        },

Expected Behavior

No response

[mcollina]

Thanks for reporting!

Can you provide steps to reproduce? We often need a reproducible example, e.g. some code that allows someone else to recreate your problem by just copying and pasting it. If it involves more than a couple of different file, create a new repository on GitHub and add a link to that.