bodyParse错误抑制

Question

我目前正在使用 bodyParser 和 Express 来接受 JSON 请求。每当我传入格式不正确的 JSON 对象时，它都会通过端点 returns 一个令人讨厌的错误，并将其记录到控制台。以下是错误：

SyntaxError: Unexpected string
    at Object.parse (native)
    at parse (/Users/ddibiase-mbp/Documents/Projects/theride_api/node_modules/body-parser/lib/types/json.js:88:17)
    at /Users/ddibiase-mbp/Documents/Projects/theride_api/node_modules/body-parser/lib/read.js:108:18
    at done (/Users/ddibiase-mbp/Documents/Projects/theride_api/node_modules/body-parser/node_modules/raw-body/index.js:239:14)
    at IncomingMessage.onEnd (/Users/ddibiase-mbp/Documents/Projects/theride_api/node_modules/body-parser/node_modules/raw-body/index.js:285:7)
    at IncomingMessage.g (events.js:199:16)
    at IncomingMessage.emit (events.js:104:17)
    at _stream_readable.js:908:16
    at process._tickCallback (node.js:355:11)
SyntaxError: Unexpected string
    at Object.parse (native)
    at parse (/Users/ddibiase-mbp/Documents/Projects/theride_api/node_modules/body-parser/lib/types/json.js:88:17)
    at /Users/ddibiase-mbp/Documents/Projects/theride_api/node_modules/body-parser/lib/read.js:108:18
    at done (/Users/ddibiase-mbp/Documents/Projects/theride_api/node_modules/body-parser/node_modules/raw-body/index.js:239:14)
    at IncomingMessage.onEnd (/Users/ddibiase-mbp/Documents/Projects/theride_api/node_modules/body-parser/node_modules/raw-body/index.js:285:7)
    at IncomingMessage.g (events.js:199:16)
    at IncomingMessage.emit (events.js:104:17)
    at _stream_readable.js:908:16
    at process._tickCallback (node.js:355:11)

我想知道如何抑制错误或完全修补它。我已经调查了这个错误，但找不到任何具体的修复建议。

Answer 1

通常用 Express 声明一个 error handler:

app.use(function(err, req, res, next) {
  ...
  return res.sendStatus(500);
});

这也会捕获中间件中抛出的错误，例如 body-parser。

bodyParse错误抑制

bodyParse error suppression

node.js

express

body-parser