Exporting a function in NodeJS












0















I have mostly worked with React so I am not that fimilar with require and export of NodeJS



But anyway, I was trying to create a middle ware by doing something like this



const { clearHash } = require("../services/cache.js")

const clearCache = async (req, res, next) => {
await next();
clearHash(req.user.id)
}

module.exports = clearCache


Which I tend to import by doing something like this



const { clearCache } = require("../middlewares/cache.js")


Now, Usually what I used to do (by reading on interned) was



module.exports = (req, res, next) => {
if (!req.user) {
return res.status(401).send({ error: 'You must log in!' });
}
next();
};


Which works, but then again i though about playing around and realised that my first snippet of code doesn't seem to be working when I do something like this



app.post('/api/blogs', requireLogin, clearCache, async (req, res) => {


Can someone help me comprehend what could be the reason for the same?










share|improve this question



























    0















    I have mostly worked with React so I am not that fimilar with require and export of NodeJS



    But anyway, I was trying to create a middle ware by doing something like this



    const { clearHash } = require("../services/cache.js")

    const clearCache = async (req, res, next) => {
    await next();
    clearHash(req.user.id)
    }

    module.exports = clearCache


    Which I tend to import by doing something like this



    const { clearCache } = require("../middlewares/cache.js")


    Now, Usually what I used to do (by reading on interned) was



    module.exports = (req, res, next) => {
    if (!req.user) {
    return res.status(401).send({ error: 'You must log in!' });
    }
    next();
    };


    Which works, but then again i though about playing around and realised that my first snippet of code doesn't seem to be working when I do something like this



    app.post('/api/blogs', requireLogin, clearCache, async (req, res) => {


    Can someone help me comprehend what could be the reason for the same?










    share|improve this question

























      0












      0








      0








      I have mostly worked with React so I am not that fimilar with require and export of NodeJS



      But anyway, I was trying to create a middle ware by doing something like this



      const { clearHash } = require("../services/cache.js")

      const clearCache = async (req, res, next) => {
      await next();
      clearHash(req.user.id)
      }

      module.exports = clearCache


      Which I tend to import by doing something like this



      const { clearCache } = require("../middlewares/cache.js")


      Now, Usually what I used to do (by reading on interned) was



      module.exports = (req, res, next) => {
      if (!req.user) {
      return res.status(401).send({ error: 'You must log in!' });
      }
      next();
      };


      Which works, but then again i though about playing around and realised that my first snippet of code doesn't seem to be working when I do something like this



      app.post('/api/blogs', requireLogin, clearCache, async (req, res) => {


      Can someone help me comprehend what could be the reason for the same?










      share|improve this question














      I have mostly worked with React so I am not that fimilar with require and export of NodeJS



      But anyway, I was trying to create a middle ware by doing something like this



      const { clearHash } = require("../services/cache.js")

      const clearCache = async (req, res, next) => {
      await next();
      clearHash(req.user.id)
      }

      module.exports = clearCache


      Which I tend to import by doing something like this



      const { clearCache } = require("../middlewares/cache.js")


      Now, Usually what I used to do (by reading on interned) was



      module.exports = (req, res, next) => {
      if (!req.user) {
      return res.status(401).send({ error: 'You must log in!' });
      }
      next();
      };


      Which works, but then again i though about playing around and realised that my first snippet of code doesn't seem to be working when I do something like this



      app.post('/api/blogs', requireLogin, clearCache, async (req, res) => {


      Can someone help me comprehend what could be the reason for the same?







      node.js






      share|improve this question













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      asked Nov 25 '18 at 19:43









      anny123anny123

      658118




      658118
























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          To be able to use the object destructuring as const { clearCache } you need to change the module.exports from module.exports = clearCache to module.exports = { clearCache }






          share|improve this answer























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            To be able to use the object destructuring as const { clearCache } you need to change the module.exports from module.exports = clearCache to module.exports = { clearCache }






            share|improve this answer




























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              To be able to use the object destructuring as const { clearCache } you need to change the module.exports from module.exports = clearCache to module.exports = { clearCache }






              share|improve this answer


























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                To be able to use the object destructuring as const { clearCache } you need to change the module.exports from module.exports = clearCache to module.exports = { clearCache }






                share|improve this answer













                To be able to use the object destructuring as const { clearCache } you need to change the module.exports from module.exports = clearCache to module.exports = { clearCache }







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                answered Nov 25 '18 at 19:46









                itsundefineditsundefined

                8562525




                8562525
































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