[BUG][typescript-nestjs] Undefined `queryParameters` for Service with authentication

Created by: Panzer1119

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Description

Some of the generated Nest Services have undefined queryParameters if the operation doesn't use query parameters, but authentication via apikey (as query parameter).

openapi-generator version

6.0.1

OpenAPI declaration file content or url

Radarr API

Generation Details

additionalProperties:
  nestVersion: 6.0.0
  fileNaming: kebab-case
  nestVersion: 9.0.4
  supportsES6: true
  stringEnums: true
  enumPropertyNaming: UPPERCASE

Steps to reproduce

Generate the API Client and inspect the api/*.service.ts files.

openapi-generator-cli generate -g typescript-nestjs -i https://raw.githubusercontent.com/Radarr/Radarr/develop/src/Radarr.Api.V3/openapi.json --additional-properties=fileNaming=kebab-case,nestVersion=9.0.4,supportsES6=true,stringEnums=true,enumPropertyNaming=UPPERCASE

Related issues/PRs

Suggest a fix

If hasQueryParams is false, then queryParameters doesn't get initialized here:

https://github.com/OpenAPITools/openapi-generator/blob/92193f7159d62419634c51eb7d2e9a4e0697d283/modules/openapi-generator/src/main/resources/typescript-nestjs/api.service.mustache#L72-L73

So just initialize queryParameters here (with a check for hasQueryParams e.g. {{^hasQueryParams}}):

https://github.com/OpenAPITools/openapi-generator/blob/92193f7159d62419634c51eb7d2e9a4e0697d283/modules/openapi-generator/src/main/resources/typescript-nestjs/api.service.mustache#L123-L128