[Angular][Typescript] Delete with body generates not properly working service

Description

I'm trying to generate an typescript/angular service with a delete method which has a body param, but the generated services does not use the body param. You can find the generated service's code here and you can see that the body param is not used anywhere.

Swagger-codegen version

2.4.4

Swagger declaration file content or url

If you post the code inline, please wrap it with

swagger: '2.0'
info:
  description: "DeleteBody"
  version: v0.0.1
  title: Multi Delete API
basePath: /
tags:
  - name: 'multi'
schemes:
  - http
paths:
  '/multi/delete':
    delete:
      summary: delete multiple
      description: >-
        Multi delete
      operationId: multiDelete
      schemes:
        - http
      consumes:
        - application/json
      parameters:
        - name: body
          in: body
          required: false
          schema:
            type: array
            items:
              type: string
      responses:
        '200':
          description: successful operation

Command line used for generation

Generated on https://editor.swagger.io/ with Generate Client -> typescript-angular

My suggestion would be that to use httpClient.request({method}) instead of httpClient.{method} with this solutiondelete accepts a body param.

Start with the inline Swagger 2.0 declaration and the generated TypeScript/Angular service linked in the issue, focusing on how the DELETE operation handles its body parameter. Compare this with the proposed HttpClient request approach; done means the generated service passes the body for DELETE requests.