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javascript - NestJS：全局错误处理程序未捕获未处理的承诺拒绝

问题描述

我正在使用 NestJS，我有一个控制器，它从抛出异常的服务中调用异步方法，如下所示：

@Get('gde/expedientes/:expediente/caratula')
  async readExpedientesCaratulaFromGDE(@Param('expediente') expediente: string): Promise<readCaratulaResultType> {
    return await this.client.readExpedienteCaratula(expediente)  // this throws an Exception!
  }

该服务只是抛出常规 JavaScript 错误，而不是 NestJs HttpExceptions。

我希望全局处理程序能够捕获它，但 http 客户端只是挂起，我在服务器中收到以下错误：

problem with request: getaddrinfo ENOTFOUND xxx.xxx.xxx
(node:17518) UnhandledPromiseRejectionWarning: TypeError: exception.getStatus is not a function
    at GDEExceptionFilter.catch (/home/sas/devel/apps/trabajo-it/coordinacion/gestion-documental/tramites-consulta/src/api/dist/gde/gde-exception.filter.js:16:34)
    at ExceptionsHandler.invokeCustomFilters (/home/sas/devel/apps/trabajo-it/coordinacion/gestion-documental/tramites-consulta/src/api/node_modules/@nestjs/core/exceptions/exceptions-handler.js:33:26)
    at ExceptionsHandler.next (/home/sas/devel/apps/trabajo-it/coordinacion/gestion-documental/tramites-consulta/src/api/node_modules/@nestjs/core/exceptions/exceptions-handler.js:13:18)
    at /home/sas/devel/apps/trabajo-it/coordinacion/gestion-documental/tramites-consulta/src/api/node_modules/@nestjs/core/router/router-proxy.js:13:35
    at processTicksAndRejections (internal/process/task_queues.js:93:5)
(node:17518) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1)
(node:17518) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

我确实是throwing inside of an async function without a catch block，但我期待它由 Nest 处理。我想开发自己的全局处理程序并捕获“请求问题：getaddrinfo ENOTFOUND xxx.xxx.xxx”错误。

有什么办法可以捕捉到它，还是我应该总是将我的控制器方法包含在一个try / catch块中？？？

标签： javascripterror-handlingpromisenestjs

解决方案

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