OpenAPI document has a different PORT

[megashrieks]

I'm on dotnet 9.0, and somehow AddOpenApi creates an openapi spec that has a different port specified in the document

and each time the application starts the port is assigned randomly, I'm guessing that this might somehow be related to the proxy created by aspire?

I use scalar, and this is annoying since everytime I need to call an API after restarting my application, I need to go to
Aspire Dashboard > My application scalar end point > call the api

since upon restart the port changes everytime I cant just keep the scalar page loaded

any idea on how I can disable this? or is this occuring from Aspire at all?

here is my launchsettings.json

{
  "$schema": "http://json.schemastore.org/launchsettings.json",
  "profiles": {
    "http": {
      "commandName": "Project",
      "dotnetRunMessages": true,
      "launchBrowser": true,
      "launchUrl": "scalar/v1",
      "applicationUrl": "http://localhost:8080",
      "environmentVariables": {
        "ASPNETCORE_ENVIRONMENT": "Development"
      }
    }
  }
}

openapi generated

{
  "openapi": "3.0.1",
  "info": {
    "title": "Application.WebApi | v1",
    "version": "1.0.0"
  },
  "servers": [
    {
      "url": "http://localhost:33815"
    }
  ],
  "paths": {

Currently I've hardcoded the port in Openapi document transformer, but I would prefer it if there was a better solution to this

[davidfowl]

See dotnet/aspnetcore#57332. Yes it because of the proxy. The open api support in asp.net core should handle this better.

[megashrieks]

okay thank you