Could it be that the function is returning undefined because console.log is executing before the result is actually returned? Perhaps a promise

There is a function located in another file that I need to extract the response from and perform an action based on that response before completing my controller function.

This is the snippet of code from the external file:

exports.counter = function(companyID) {
    options.json.companyID = companyID
    request.post('/monitorCounter', options, (error, response, body) => {
        if (error) {
            console.log(error);
            throw error;
        }
        if(body.success == true) return true
    });    
}

Here I am importing the required file/function:

const monitorCounter = require('../controllers/counter').counter

After that, this is how I am attempting to utilize it in my primary controller file:

let valid = monitorCounter(companyID)
console.log(`Valid: ${valid}`)

Despite anticipating a true value (verified through console.log and successful functionality), the output is coming out as undefined.

I had considered implementing a promise for this scenario but was uncertain about the approach due to the code residing in a different file. Additionally, my proficiency with promises is still a work in progress at the moment.

Answer №1

I successfully managed to solve the issue with promises that I was facing earlier. Despite having attempted it previously, I realized that I wasn't returning a promise and was incorrectly using resolve/reject. Below is the updated code that resolved this problem.

exports.counter = function(companyID) {
    return new Promise((resolve, reject) => {
        options.json.companyID = companyID
        request.post('/monitorCounter', options, (error, response, body) => {
            if (error) {
                console.log(error);
                throw error;
            }
            if(body.success == true) resolve(true)
            if(body.success != true) reject(false)
        });    
    });
}

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