首页 > 解决方案 > 添加DELETE操作导致TypeError

问题描述

我创建了一个 Node.js 休息 api。它遵循通用控制器、模型、模式结构,并使用我开始运行的 restify 服务器node index.js

控制器由一个controllers/baseController.js包含一些与我的所有控制器类相关的操作组成。我的controllers/issues.jswhich extendscontrollers/baseController.js最初只有一个 GET、POST 和 PUT 操作。虽然不完整,但这些工作正常。他们当然没有阻止服务器启动。

然后我将以下删除操作添加到我的控制器:

controller.addAction({
  'path': '/issues',
  'method': 'DELETE',
  'summary': 'Delete all issues from the list',
  'responseClass': 'Issues',
  'nickname': 'deleteIssues'
}, controller.delete);

它路由到:

delete(req, res, next) {
  let collectionContents = this.lib.db.model('Issues');
  collectionContents.remove({}, (err, result) => {
    if(err) return next(this.RESTError('InternalServerError', err));
    this.writeHAL(res, result);
  });
}

但是,当我尝试启动服务器时,出现此错误:

Debugger listening on ws://127.0.0.1:30333/71b18332-4ac6-49b8-b0ac-86517e9a2190
Debugger attached.
/Users/paulcarron/git/issue-tracker/controllers/baseController.js:19
      app[method.toLowerCase()](act['spec']['path'], act['action']);
                               ^

    at Issues.setUpActions (/Users/paulcarron/git/issue-tracker/controllers/baseController.js:15:18)
    at Object.setupRoutes (/Users/paulcarron/git/issue-tracker/lib/helpers.js:13:12)
    at Object.<anonymous> (/Users/paulcarron/git/issue-tracker/index.js:35:13)
    at Module._compile (module.js:632:14)
    at Object.Module._extensions..js (module.js:646:10)
    at Module.load (module.js:554:32)
    at tryModuleLoad (module.js:497:12)
    at Function.Module._load (module.js:489:3)
    at Function.Module.runMain (module.js:676:10)
    at startup (bootstrap_node.js:187:16)
    at bootstrap_node.js:608:3
TypeError: app[method.toLowerCase(...)] is not a function
baseController.js:19
    at actions.forEach.act (/Users/paulcarron/git/issue-tracker/controllers/baseController.js:19:32)
    at Array.forEach (<anonymous>)
    at Issues.setUpActions (/Users/paulcarron/git/issue-tracker/controllers/baseController.js:15:18)
    at Object.setupRoutes (/Users/paulcarron/git/issue-tracker/lib/helpers.js:13:12)
    at Object.<anonymous> (/Users/paulcarron/git/issue-tracker/index.js:35:13)
    at Module._compile (module.js:632:14)
    at Object.Module._extensions..js (module.js:646:10)
    at Module.load (module.js:554:32)
    at tryModuleLoad (module.js:497:12)
    at Function.Module._load (module.js:489:3)
    at Function.Module.runMain (module.js:676:10)
    at startup (bootstrap_node.js:187:16)
    at bootstrap_node.js:608:3
Waiting for the debugger to disconnect...

baseController.js这里

好像有问题'method': 'DELETE'。但是,我不知道为什么。我认为它可能与 Swagger 相关,因为我相信诸如addGET,之类的功能addPOST在那里并且可能addDELETE不存在,但我检查并在那里。谁能解释这里可能出了什么问题?

附加信息。 我想我正在取得一些进展。我遇到问题的具体点是method.toLowerCase(). 设置时DELETE,这本质上是DELETE.toLowerCase()但这是不允许的,因为 delete 是保留字(我认为)。这看起来是否正确,如果是,我该如何解决?

标签: javascriptnode.jsresthttp-deletereserved-words

解决方案


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