Question

这就是我使用bodyParser作为expressJS / graphQL服务器的中间件的方法。

const graphqlMiddleware = [
  // bodyParser is needed just for POST.
  bodyParser.json(),
  bodyParser.text({ type: 'application/graphql' }),
  (req, res, next) => {
    res.header('Access-Control-Allow-Origin', '*')
    res.header('Access-Control-Allow-Headers', 'Content-Type, Authorization, Content-Length, X-Requested-With')
    if (req.is('application/graphql')) {
      req.body = { query: req.body }
    }
    if (req.method === 'OPTIONS') {
      res.sendStatus(200)
    } else {
      next()
    }
  }
]

app.use('/graphql',
  ...graphqlMiddleware,
  graphqlExpress(req => ({
    schema: schema,
    rootValue: { db: req.app.locals.db }
  }))
)

现在我尝试重构我的文件，所以我将功能移到了

/middlewares/graphql.js

module.exports = (req, res, next) => {
  res.header('Access-Control-Allow-Origin', '*')
  res.header('Access-Control-Allow-Headers', 'Content-Type, Authorization, Content-Length, X-Requested-With')
  if (req.is('application/graphql')) {
    req.body = { query: req.body }
  }
  if (req.method === 'OPTIONS') {
    res.sendStatus(200)
  } else {
    next()
  }
}

...并将其导入我的入口点：

app.js

import graphqlMiddleware from './middlewares/graphql'

app.use('/graphql',
  graphqlMiddleware,
  graphqlExpress(req => ({
    schema: schema,
    rootValue: { db: req.app.locals.db }
  }))
)

但是我应该如何（以及在哪里）添加bodyParser？

bodyParser.json(),
bodyParser.text({ type: 'application/graphql' })

Answer 1

...
app.use(bodyParser.json())

app.use('/graphql',
  bodyParser.text({ type: 'application/graphql' }),
  graphqlMiddleware,
  graphqlExpress(req => ({
    schema: schema,
    rootValue: { db: req.app.locals.db }
  }))
)
...

ExpressJS：在哪里为中间件添加bodyParser？

1 个答案: