NodeJs 使用 express 和 typeorm 的项目如何实现 Global Error Handling

最近在写 nodejs，遇到了一个问题很迷幻。

如何在 controller/router 层来处理 services 或则 repository 层传递过来的错误呢？

现在是用 try catch 代码实在是太丑了。

我想实现的是类似于 Spring boot 的 controllerAdvise/ExceptionHandler 这种形式

网上搜了一圈也没啥好的办法，希望大佬们给点意见

例子如下：

router：

 async login(req: Request, res: Response) { try { const {user, accessToken} = await this.userRepository.findAndGenerateToken(req.body); const token = await AuthService.generateTokenResponse(user, accessToken); if (user.Role[0].role_id !== 3 && user.is_approval === false) { return ApiResultBean.errorMessage("User need to be approve!!"); } if (token instanceof Error) { return ApiResultBean.error(req, token); } return ApiResultBean.success({token, user}); } catch (error){ // res.status(error.statusCode) console.log(error); if (error.output.payload) { return ApiResultBean.error(req, error,error.output.payload.message); } return ApiResultBean.error(req, error); } } 

repository 层：

 public async findAndGenerateToken(options: tokenOptions): Promise<{ user: User, accessToken: string; }> { const {username, emailAddress, password, refreshToken} = options; if (!emailAddress && !username) { throw badRequest("An email address or username is required to generate a token"); } let user; try { user = await this.findOne({ relations: ['Role'], where: emailAddress ? {emailAddress: emailAddress} : {username: username} }); }catch (error) { return error; } if (!user) { throw notFound('User not found'); } else if (password && await user.passwordMatches(password.toString()) === false) { throw unauthorized('Password must match to authorize a token generating'); } else if (refreshToken && refreshToken.user.emailAddress === emailAddress && Dayjs(refreshToken.expires).isBefore(Dayjs())) { throw unauthorized('Invalid refresh token'); } return {user, accessToken: user.token()}; }