小编Eri*_*sey的帖子

我有以下文件metrics.controller.ts：

import { Controller, Get } from '@nestjs/common';
import { ApiOperation, ApiResponse, ApiUseTags, ApiModelProperty } from '@nestjs/swagger';
import { PrometheusService } from './prometheus.service';

@Controller('metrics')
@ApiUseTags('Misc')
export class MetricsController {
  constructor(private readonly prometheusService: PrometheusService) {}

  @Get('/')
  @ApiOperation({
    title: 'Prometheus metrics',
    description: 'Exposes default prometheus node metrics'
  })
  @ApiResponse({ status: 200, description: 'Prometheus metrics' })
  public getMetrics(): string {
    return this.prometheusService.getMetrics();
  }
}

然而，当实际输出为text/plain时，Swagger 错误地指示了application/json的响应内容类型：