Axios promise will never resolve - reactjs

Question

For the life of me, I can never get my Axios.post promise to resolve.
I know that my front end and backend are perfectly connected.
Try/catch blocks to return the resolved promise haven't worked either.
No matter what I do, I can never get inside of my promise.then() function. What am I doing incorrectly in my backend file?
CODE THAT HASN'T WORKED TO RESOLVE THE PROMISE
async handleDateSubmit() {
let resolvedPromise = await Axios.post(
"http://localhost:3001/get_number_of_dates_from_email",
{
email: this.state.user_email_m
}
);
resolvedPromise
.then(response => {
//I can never get to here.
console.log("Made it inside");
})
.catch(err => console.log(err));
}
//---attempt two----//
async getResolvedPromise() {
try {
return await Axios.post(
"http://localhost:3001/get_number_of_dates_from_email",
{
email: this.state.user_email_m
}
);
} catch (error) {
console.log(error);
}
}
async handleDateSubmit() {
let resolvedPromise = this.getResolvedPromise();
//work with resolvedPromsie
}
CURRENT CODE
//------------send_info.js front end file----------//
handleDateSubmit() {
Axios.post('http://localhost:3001/get_number_of_dates_from_email', {
email: this.state.user_email_m
})
.then((response) => {
//I can never get to here.
console.log("Made it inside");
})
.catch(err => console.log(err));
}
//---------------server.js backend file---------------//
router.route('/get_number_of_dates_from_email').post(function (req, res) {
//"user_email" is correct in my schema model and "req.body.email" is always what it should be
User.findOne({ user_email: req.body.email }, (err, foundUser) => {
console.log("Inside of findOne()");
if (err) {
return res.send(err);
}
else {
let numDates = foundUser.dates_list.length;
//I always get here and numDates is always correct
console.log("Number of dates: ", numDates);
return res.json({ "numDates": numDates }); //Should I be using res.send()?
}
});
});

Answer 1

It seems like you're confusing promises and resolved promises at times in your code
// Attempt one
async handleDateSubmit() {
try {
let resolvedPromise = await Axios.post(
"http://localhost:3001/get_number_of_dates_from_email",
{
email: this.state.user_email_m
}
);
// Here resolvedPromise as stated by its name is not a promise anymore, thus you can't use .then()
// You can directly work with resolvedPromise as it contains the response.
} catch (e) {
console.error(e)
}
}
// Attempt two
async getResolvedPromise() {
try {
// Here you're returning the resolved promise, but the async await syntax turn your function into an AsyncFunction object
// This type of function will wrap the return value in a promise if it's not one
return await Axios.post(
"http://localhost:3001/get_number_of_dates_from_email",
{
email: this.state.user_email_m
}
);
} catch (error) {
console.log(error);
}
}
async handleDateSubmit() {
// Thus you need to await the result of your function
let resolvedPromise = await this.getResolvedPromise();
}