Router.use（）需要中间件功能，但使用socket.io和mocha时未定义

问题描述 投票：1回答：1

我是初学者，可以将socket.io与NodeJS和mocha一起使用。使用socket.io客户端和服务器后，出现以下错误

Router.use() requires a middleware function but got a undefined在项目构建期间。以下是文件和代码详细信息

后端/main.ts

const app = express()
const http = require('http').createServer(app)
...

app.use('/api', require('./routes/api'))

...

export const io = require('socket.io')(http)
io.listen(http)
io.on('connection', (client: SocketIO.Socket) => {
  // eslint-disable-next-line no-console
  console.log('Socket open Connection')
  client.on('disconnect', () => {
    // eslint-disable-next-line no-console
    console.log('socket disconnect')
  })
})
...

后端/路由/api/index.ts

const router = Router()

// Global middleware for all /api routes

router.use('/ping', ping)
router.use('/crm', isLoggedIn, ensureAccessToken, crmSource)
router.use('/app', isLoggedIn, ensureAccessToken, app)
router.use('/app-users', isLoggedIn, ensureAccessToken, ensureIsGlobalTeamMember, appUsers)
router.use('/business', isLoggedIn, ensureAccessToken, ensureIsAdmin, business)
router.use('/app-offers', isLoggedIn, ensureAccessToken, appOffers)
router.use('/app-contracts', isLoggedIn, ensureAccessToken, appContracts)
router.use('/app-order', isLoggedIn, ensureAccessToken, appOrders)
router.use('/app-export', isLoggedIn, ensureAccessToken, appDetailsExport)
router.use('/app-global-settings', isLoggedIn, ensureAccessToken, appGlobalSettings)

if (config.environment === 'local' || config.environment === 'dev') {
  router.use('/translations', translationRoutes)
}

// Non-existent API routes should return 404, not the HTML page
router.use((_req, res) => {
  res.status(404).end()
})

// export default router
module.exports = router

后端/路由/ api / crmSource / ts

const router = Router()
router.get('/', (req: ApiRequest, res: Response) => { ... } )
router.get('/source/number/:sourceNumber', (req: ApiRequest, res: Response) => { ... } )
...
export default router

后端/路由/api/appUsers.ts

const router = Router()

router.post(...)
router.delete(...)

export default router

Global中间件路由器中的所有其他中间件都以相同的方式编写。

当我从main.ts导入io进行以下文件中的套接字通信时checkout-offer.ts

import {io as socketIoConnection} from './main'
...


function checkoutOffer(db, logger, offer, token) {
    socketIoConnection.emit('saveOffer')
    await db.saveCheckoutOffer(offer, logger, token)
    socketIoConnection.emit('offerCheckedOut')
    return db.getCheckedOffer(db, updatedOffer.id)
}
...

我在使用Mocha的测试版本中遇到错误。不运行mocha测试的套接字实现在应用程序中运行良好。但是在运行npm run test时出现此错误。

> [email protected] test /Users/<user>/myproject
> npm-run-all --sequential test:unit lint test:api test:browser


> [email protected] test:unit /Users/<user>/myproject
> NODE_ICU_DATA=node_modules/full-icu mocha "test/unit/**/*test.{tsx,ts}"

ERROR myproject: Router.use() requires a middleware function but got a undefined
    TypeError: Router.use() requires a middleware function but got a undefined
        at Function.use (/Users/<user>/myproject/node_modules/express/lib/router/index.js:458:13)
        at Object.<anonymous> (/Users/<user>/myproject/backend/routes/api/index.ts:28:8)
        at Module._compile (internal/modules/cjs/loader.js:778:30)
        at Module.m._compile (/Users/<user>/myproject/node_modules/ts-node/src/index.ts:439:23)
        at Module._extensions..js (internal/modules/cjs/loader.js:789:10)
        at Object.require.extensions.(anonymous function) [as .ts] (/Users/<user>/myproject/node_modules/ts-node/src/index.ts:442:12)
        at Module.load (internal/modules/cjs/loader.js:653:32)
        at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
        at Function.Module._load (internal/modules/cjs/loader.js:585:3)
        at Module.require (internal/modules/cjs/loader.js:692:17)
        at require (internal/modules/cjs/helpers.js:25:18)
        at Object.<anonymous> (/Users/<user>/myproject/backend/main.ts:91:17)
        at Module._compile (internal/modules/cjs/loader.js:778:30)
        at Module.m._compile (/Users/<user>/myproject/node_modules/ts-node/src/index.ts:439:23)
        at Module._extensions..js (internal/modules/cjs/loader.js:789:10)
        at Object.require.extensions.(anonymous function) [as .ts] (/Users/<user>/myproject/node_modules/ts-node/src/index.ts:442:12)
        at Module.load (internal/modules/cjs/loader.js:653:32)
        at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
        at Function.Module._load (internal/modules/cjs/loader.js:585:3)
        at Module.require (internal/modules/cjs/loader.js:692:17)
        at require (internal/modules/cjs/helpers.js:25:18)
        at Object.<anonymous> (/Users/<user>/myproject/backend/finalize-offer.ts:18:1)
        at Module._compile (internal/modules/cjs/loader.js:778:30)
        at Module.m._compile (/Users/<user>/myproject/node_modules/ts-node/src/index.ts:439:23)
        at Module._extensions..js (internal/modules/cjs/loader.js:789:10)
        at Object.require.extensions.(anonymous function) [as .ts] (/Users/<user>/myproject/node_modules/ts-node/src/index.ts:442:12)
        at Module.load (internal/modules/cjs/loader.js:653:32)
        at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
        at Function.Module._load (internal/modules/cjs/loader.js:585:3)
        at Module.require (internal/modules/cjs/loader.js:692:17)
        at require (internal/modules/cjs/helpers.js:25:18)
        at Object.<anonymous> (/Users/<user>/myproject/backend/routes/api/offers.ts:15:1)
        at Module._compile (internal/modules/cjs/loader.js:778:30)
        at Module.m._compile (/Users/<user>/myproject/node_modules/ts-node/src/index.ts:439:23)
        at Module._extensions..js (internal/modules/cjs/loader.js:789:10)
        at Object.require.extensions.(anonymous function) [as .ts] (/Users/<user>/myproject/node_modules/ts-node/src/index.ts:442:12)
        at Module.load (internal/modules/cjs/loader.js:653:32)
        at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
        at Function.Module._load (internal/modules/cjs/loader.js:585:3)
        at Module.require (internal/modules/cjs/loader.js:692:17)
        at require (internal/modules/cjs/helpers.js:25:18)
        at Object.<anonymous> (/Users/<user>/myproject/test/unit/i18n-test.ts:8:1)
        at Module._compile (internal/modules/cjs/loader.js:778:30)
        at Module.m._compile (/Users/<user>/myproject/node_modules/ts-node/src/index.ts:439:23)
        at Module._extensions..js (internal/modules/cjs/loader.js:789:10)
        at Object.require.extensions.(anonymous function) [as .ts] (/Users/<user>/myproject/node_modules/ts-node/src/index.ts:442:12)
        at Module.load (internal/modules/cjs/loader.js:653:32)
        at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
        at Function.Module._load (internal/modules/cjs/loader.js:585:3)
        at Module.require (internal/modules/cjs/loader.js:692:17)
        at require (internal/modules/cjs/helpers.js:25:18)
        at /Users/<user>/myproject/node_modules/mocha/lib/mocha.js:231:27
        at Array.forEach (<anonymous>)
        at Mocha.loadFiles (/Users/<user>/myproject/node_modules/mocha/lib/mocha.js:228:14)
        at Mocha.run (/Users/<user>/myproject/node_modules/mocha/lib/mocha.js:536:10)
        at Object.<anonymous> (/Users/<user>/myproject/node_modules/mocha/bin/_mocha:573:18)
        at Module._compile (internal/modules/cjs/loader.js:778:30)
        at Object.Module._extensions..js (internal/modules/cjs/loader.js:789:10)
        at Module.load (internal/modules/cjs/loader.js:653:32)
        at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
        at Function.Module._load (internal/modules/cjs/loader.js:585:3)
        at Function.Module.runMain (internal/modules/cjs/loader.js:831:12)
        at startup (internal/bootstrap/node.js:283:19)
        at bootstrapNodeJSCore (internal/bootstrap/node.js:623:3)

package.json测试脚本

"test": "npm-run-all --sequential test:unit lint test:api test:browser",
    "lint": "eslint --ext .ts,.tsx,.js . && stylelint \"**/*.less\" \"**/*.css\"",
    "lint-fix": "eslint --ext .ts,.tsx,.js . --fix && stylelint \"**/*.less\" \"**/*.css\" --fix",
    "test:unit": "NODE_ICU_DATA=node_modules/full-icu mocha \"test/unit/**/*test.{tsx,ts}\"",
    "test:api": "NODE_ICU_DATA=node_modules/full-icu mocha test/api/**/*.ts",
    "test:browser": "NODE_ICU_DATA=node_modules/full-icu mocha test/browser/**/*.ts",

这是在backend/routes/api/index.ts（上面提供）全局路由器中间件router.use('/app-offers', isLoggedIn, ensureAccessToken, appOffers)中导入它的中间件>

后端/路由/api/appOffers.ts

/* imports */

const router = Router()
const upload = multer()

router.post('/offer/:offerId', (req: ApiRequest, res: Response) => {
  ...
})

router.get('/:offerId', (req: ApiRequest, res: Response) => {
  ...
})

router.post('/offer/:offerId/finalize', (req: ApiRequest, res: Response) => {
  ...
})

export const setActiveOfferAsInCrm = (restUrl: string, accessToken: string, logger: Logger) => async (offers: SavedOffer[]): Promise<SavedOffer[]> => {
  ...
}

router.post('/:offerId/activate', (req: ApiRequest, res: Response) => {
  ...
})

router.post('/:offerId/doc-attachment/upload/:type', upload.single('file'), async (req: ApiRequest, res: Response) => {
  ...
})

router.post('/:offerId/doc-attachment/:attachmentId/delete', async (req: ApiRequest, res: Response) => {
  ...
})

router.post('/:offerId/cloning', async (req: ApiRequest, res: Response) => {
  ...
})

router.post('/:offerId/doc-attachment', async (req: ApiRequest, res: Response) => {
  ...
})


enum AttachmentTypes {
  _Docx = 'docx',
  _Jpg = 'jpg',
  _Pdf = 'pdf',
  _Xlsx = 'xlsx',
  _Csv = 'csv'
}
type DocumentType = AttachmentTypes._Docx | AttachmentTypes._Jpg | AttachmentTypes._Pdf | AttachmentTypes._Xlsx
export const documentTypes: DocumentType[] = [AttachmentTypes._Docx, AttachmentTypes._Jpg, AttachmentTypes._Pdf, AttachmentTypes._Xlsx]

export function getDocumentFilename(documentType: DocumentType) {
  switch (documentType) {
    ...
  }
}

function getEmailAttachmentName(t: TranslationFunction, AttachmentTypes: AttachmentTypes, extension: string): string {
  const prefixAndTranslate = (key: string) => t('contractPdf.' + key)

  switch (AttachmentTypes) {
   ...
  }
}

function getEmailAdditionalAttachmentName(t: TranslationFunction, AttachmentTypesNumber: number, originalName: string): string {
  const prefixAndTranslate = (key: string) => t('contractPdf.' + key)
  return prefixAndTranslate('AttachmentTypes') + ' ' + AttachmentTypesNumber + ' - ' + originalName
}

async function loadAndAttachDocument(logger: Logger,
                                     t: TranslationFunction,
                                     businessId: BusinessId,
                                     language: Language,
                                     documentType: DocumentType): Promise<AttachmentFile | undefined> {
  ...
}

export function getDocumentPath(businessId: BusinessId, language: Language, documentType: DocumentType): string {
  return path.join(__dirname, '..', '..', 'assets', 'AttachmentTypeses', businessId, language, getDocumentFilename(documentType))
}

router.post('/:offerId/email', async (req: ApiRequest, res: Response) => {
  ...
})

export default router

我是初学者，可以将socket.io与NodeJS和mocha一起使用。使用socket.io客户端和服务器后，我得到以下错误Router.use（）需要中间件功能，但在...

node.js socket.io mocha chai
1个回答
1
投票

尝试一些重构。也许，您可以将多种导出方法从backend / routes / api / appOffers.ts转移到相应的utils，并保持导出默认路由器原样。

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