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Non-functionnal API versioning with Fastify + MediaType

See original GitHub issue

Bug Report

Current behavior

Fastify

If I configure to use Fastify-platform, the server initialize without any problem, but does not start nor open the listening socket, even if the callback at api.listen returns a value.

[Nest] 35105  - 08/15/2021, 12:22:04 PM     LOG [NestFactory] Starting Nest application...
[Nest] 35105  - 08/15/2021, 12:22:04 PM     LOG [InstanceLoader] AppModule dependencies initialized +38ms
[Nest] 35105  - 08/15/2021, 12:22:04 PM     LOG [RoutesResolver] AppController {/}: +7ms
[Nest] 35105  - 08/15/2021, 12:22:04 PM     LOG [RouterExplorer] Mapped {/, GET} (version: 1) route +3ms
[Nest] 35105  - 08/15/2021, 12:22:04 PM     LOG [RouterExplorer] Mapped {/, GET} (version: 2) route +0ms
[Nest] 35105  - 08/15/2021, 12:22:04 PM     LOG [NestApplication] Nest application successfully started +3ms
Displayed: Running at http://127.0.0.1:3000/

<<< END OF THE INPUT

The server never open the listening socket

Express

This is working with Express-platform.

[Nest] 35139  - 08/15/2021, 12:23:25 PM     LOG [NestFactory] Starting Nest application...
[Nest] 35139  - 08/15/2021, 12:23:25 PM     LOG [InstanceLoader] AppModule dependencies initialized +35ms
[Nest] 35139  - 08/15/2021, 12:23:25 PM     LOG [RoutesResolver] AppController {/}: +7ms
[Nest] 35139  - 08/15/2021, 12:23:25 PM     LOG [RouterExplorer] Mapped {/, GET} (version: 1) route +4ms
[Nest] 35139  - 08/15/2021, 12:23:25 PM     LOG [RouterExplorer] Mapped {/, GET} (version: 2) route +1ms
[Nest] 35139  - 08/15/2021, 12:23:25 PM     LOG [NestApplication] Nest application successfully started +2ms
Displayed: Running at http://127.0.0.1:3000/
Not displayed: Running at http://[::1]:3000

<<< END OF THE INPUT

Input Code

I made a simple POC to illustrate the problem:

https://github.com/lolo32/poc-nest-swagger-versioning-error/tree/error-fastify

Expected behavior

Using Fastify must works like Express does.

Environment

 _   _             _      ___  _____  _____  _     _____
| \ | |           | |    |_  |/  ___|/  __ \| |   |_   _|
|  \| |  ___  ___ | |_     | |\ `--. | /  \/| |     | |
| . ` | / _ \/ __|| __|    | | `--. \| |    | |     | |
| |\  ||  __/\__ \| |_ /\__/ //\__/ /| \__/\| |_____| |_
\_| \_/ \___||___/ \__|\____/ \____/  \____/\_____/\___/


[System Information]
OS Version     : macOS Catalina
NodeJS Version : v14.17.4
NPM Version    : 7.20.5 

[Nest CLI]
Nest CLI Version : 8.1.1 

[Nest Platform Information]
platform-express version : 8.0.6
platform-fastify version : 8.0.6
schematics version       : 8.0.2
testing version          : 8.0.6
common version           : 8.0.6
core version             : 8.0.6
cli version              : 8.1.1