可以在 heroku 上设置 NATS 协议吗？
It's possible to setup NATS protocol on heroku?
我看过很多关于如何在 heroku 上设置 HTTPS 和 Websockets 的文档和教程，但是是否可以设置其他协议，如 TLS 或 NATS？
如果可以，我该怎么做？
很遗憾，没有。
Inbound requests are received by a load balancer that offers SSL
termination. From here they are passed directly to a set of routers.
The routers are responsible for determining the location of your
application’s web dynos and forwarding the HTTP request to one of
these dynos.
https://devcenter.heroku.com/articles/http-routing#routing
Not supported
- TCP Routing
https://devcenter.heroku.com/articles/http-routing#not-supported
Heroku 仅为托管在其上的应用程序提供 http/https 路由。
我看过很多关于如何在 heroku 上设置 HTTPS 和 Websockets 的文档和教程，但是是否可以设置其他协议，如 TLS 或 NATS？
如果可以，我该怎么做？
很遗憾，没有。
Inbound requests are received by a load balancer that offers SSL termination. From here they are passed directly to a set of routers.
The routers are responsible for determining the location of your application’s web dynos and forwarding the HTTP request to one of these dynos.
https://devcenter.heroku.com/articles/http-routing#routing
Not supported
- TCP Routing
https://devcenter.heroku.com/articles/http-routing#not-supported
Heroku 仅为托管在其上的应用程序提供 http/https 路由。