I'm starting in the world of promises and there is one thing I can't understand.
I am trying to make a system that returns a document from a Firebase collection by its ID.
For this I use 2 functions
const getProductDataById = async(idProduct)=> {
const docSnap = await getDoc(doc(db, "products", idProduct));
if (docSnap.exists()) {
return docSnap.data();
}
else {
console.log("No such document!");
}
}
const getProduct = (idProduct)=>{
let ProductDataPromise = getProductDataById (idProduct);
//I don't know how resolve Promise
return ProductData;
}
The problem is that I don't know in the second how to resolve the Promise so that this function returns the desired object.
Thanks!!
You should be able to just await the call to the first function:
const getProduct = async (idProduct)=>{
let ProductData = await getProductDataById(idProduct);
// Do something with ProductData?
return ProductData;
}
Of course, if you're not doing anything with ProductData, then this is equivalent to just calling getProductDataById directly.