Unable to invoke a function in JavaScript

Question

Unable to invoke a function in JavaScript

When I try to create a user in the database by calling the function createOne inside createProfile, it seems like the function is not getting executed. Even though the route is functioning properly, I'm facing an issue with calling a function within another function.

I could really use some assistance here!

exports.createOne = Model =>
  catchAsync(async (req, res, next) => {
    console.log("I am in createone")

    const doc = await Model.create(req.body);

    res.status(201).json({
      status: 'success',
      data: {
        data: doc
      }
    });
  });

exports.createProfile = (req,res) => {
    console.log(req.query.segment);
    if(req.query.segment == "Tour"){
        let Segment = Tour;
        console.log(factory);
        factory.createOne(Tour);
    }

}

Upon checking the console log results below, it appears that the function is not being triggered at all.

Tour
{ getOne: [Function], createOne: [Function] }
POST /api/v1/midasCommon/?segment=Tour - - ms - -

javascript mongodb express

Answer 1

Answer №1

Upon reviewing the definition of catchAsync that was provided, it seems that the function being returned is not being executed.

const catchAsync = fn => { 
  return (req, res, next) => { 
    fn(req, res, next).catch(next);
  };
};

When you call factory.createOne(Tour);, you are only invoking catchAsync without executing the returned function.

To correct this, you can either call factory.createOne(Tour)(); or update the createOne function as follows:

exports.createOne = Model =>
  catchAsync(async (req, res, next) => {
    console.log("I am in createone")

    const doc = await Model.create(req.body);


    res.status(201).json({
      status: 'success',
      data: {
        data: doc
      }
    });
  })(); // <-- Make sure to include the call

Answer 2

Upon reviewing the definition of catchAsync that was provided, it seems that the function being returned is not being executed.

const catchAsync = fn => { 
  return (req, res, next) => { 
    fn(req, res, next).catch(next);
  };
};

When you call factory.createOne(Tour);, you are only invoking catchAsync without executing the returned function.

To correct this, you can either call factory.createOne(Tour)(); or update the createOne function as follows:

exports.createOne = Model =>
  catchAsync(async (req, res, next) => {
    console.log("I am in createone")

    const doc = await Model.create(req.body);


    res.status(201).json({
      status: 'success',
      data: {
        data: doc
      }
    });
  })(); // <-- Make sure to include the call

Unable to invoke a function in JavaScript

Answer №1

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