All files / middleware errorHandler.ts

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
import { Context, Next } from 'koa';
 
export async function errorHandler(ctx: Context, next: Next): Promise<void> {
  try {
    await next();
  } catch (err: unknown) {
    const error = err as Error & { status?: number; code?: number };
    
    console.error('❌ Error:', error.message);
    console.error('Stack:', error.stack);
 
    ctx.status = error.status || 500;
    ctx.body = {
      code: error.code || 500,
      message: error.message || '服务器内部错误',
      data: null,
    };
 
    // 开发环境返回详细错误
    if (process.env.NODE_ENV === 'development') {
      (ctx.body as Record<string, unknown>).stack = error.stack;
    }
  }
}
 
// 自定义错误类
export class AppError extends Error {
  public code: number;
  public status: number;
 
  constructor(message: string, code: number = 500, status: number = 500) {
    super(message);
    this.code = code;
    this.status = status;
    this.name = 'AppError';
  }
}
 
export class UnauthorizedError extends AppError {
  constructor(message: string = '未授权访问') {
    super(message, 401, 401);
  }
}
 
export class ForbiddenError extends AppError {
  constructor(message: string = '禁止访问') {
    super(message, 403, 403);
  }
}
 
export class NotFoundError extends AppError {
  constructor(message: string = '资源不存在') {
    super(message, 404, 404);
  }
}
 
export class BadRequestError extends AppError {
  constructor(message: string = '请求参数错误') {
    super(message, 400, 400);
  }
}
 
export class QuotaExceededError extends AppError {
  constructor(message: string = '使用次数已达上限') {
    super(message, 429, 429);
  }
}