# All files / modules/categories categories.controller.ts

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     import Router from '@koa/router';
    import { categoriesService } from './categories.service';

    const router = new Router();

    /**
     * 获取分类列表
     * GET /api/categories
     */
    router.get('/', async (ctx) => {
      try {
        const categories = await categoriesService.getCategories();
        ctx.body = {
          code: 0,
          message: 'success',
          data: categories,
        };
      } catch (error: any) {
        ctx.body = {
          code: 400,
          message: error.message || '获取分类失败',
        };
      }
    });

    /**
     * 按分类获取音频
     * GET /api/categories/:id
     */
    router.get('/:id', async (ctx) => {
      try {
        const { id } = ctx.params;
        const { page, pageSize } = ctx.query as { page?: string; pageSize?: string };

        const result = await categoriesService.getAudiosByCategory(
          parseInt(id),
          parseInt(page || '1'),
          parseInt(pageSize || '20')
        );

        ctx.body = {
          code: 0,
          message: 'success',
          data: result,
        };
      } catch (error: any) {
        ctx.body = {
          code: 400,
          message: error.message || '获取分类音频失败',
        };
      }
    });

    export default router;