Data in React Component Not refreshing when Path/Location changes - reactjs

Question

I have a react app that has a "Bread Crumb Header" component, the data for this component comes from an API end point.
I use the bread crumb header component inside mulitiple components within the app, and based on the current path/window.location the bread crumb componet will get the data from the API and render the correct HTML via JSX.
The problem I have is when I navigate to diffent paths/window.location's within the application the bread crum component data doesn't update.
This is what the bread crumb component looks like:
import React, { useState, useEffect } from 'react';
import API from "../../API";
import { useLocation } from 'react-router-dom';
import { BreadCrumbTitleSection, SubtitleSection, Subtitle } from './breadCrumbHeaderStyle';
import { Breadcrumb } from 'react-bootstrap';
function BreadCrumbHeader() {
const location = useLocation();
const [breadCrumbData, setBreadCrumbData] = useState([]);
const getBreadCrumbData = async () => {
const breadCrumbHeaderResponse = await API.fetchBreadCrumbHeader(location.pathname);
setBreadCrumbData(breadCrumbHeaderResponse);
};
useEffect(() => {
getBreadCrumbData();
}, []);
return (
<div>
<BreadCrumbTitleSection backgroundUrl={breadCrumbData.BreadCrumbBgImage}>
<div className="container">
<div className="row no-gutters">
<div className="col-xs-12 col-xl-preffix-1 col-xl-11">
<h1 className="h3 text-white">{breadCrumbData.BreadCrumbTitle}</h1>
<Breadcrumb>
{breadCrumbData.BreadCrumbLinks.map(breadCrumbLink => (
<Breadcrumb.Item href={breadCrumbLink.LinkUrl} key={breadCrumbLink.Id} active={breadCrumbLink.IsActive}>
{breadCrumbLink.LinkText}
</Breadcrumb.Item>
))}
</Breadcrumb>
</div>
</div>
</div>
</BreadCrumbTitleSection>
<SubtitleSection>
<Subtitle> {breadCrumbData.SubTitle}</Subtitle>
</SubtitleSection>
</div>
);
}
export default BreadCrumbHeader;
and this is an example of how I am using it inside other components:
import React, { useContext } from 'react';
import { useParams } from "react-router-dom";
import { MenuContext } from '../context/menuContext';
import RenderCmsComponents from '../../components/RenderCmsComponents/';
import BreadCrumbHeader from '../../components/BreadCrumbHeader/';
import { CategorySection, CategoryContainer, CategoryItemCard, CategoryItemCardBody, CategoryItemCardImg, CategoryItemTitle, CategoryRow, AddToCartButton, ProductDescription} from './categoryStyle';
function Category() {
const [categoryItems] = useContext(MenuContext);
const { id } = useParams();
const category = categoryItems.find(element => element.CategoryName.toLowerCase() === id.toLowerCase());
var dynamicProps = [];
{
category && category.Products.map(productItem => (
dynamicProps.push(productItem.ProductOptions.reduce((acc, { OptionName, OptionsAsSnipCartString }, i) => ({
...acc,
[`data-item-custom${i + 1}-name`]: OptionName,
[`data-item-custom${i + 1}-options`]: OptionsAsSnipCartString
}), {}))));
}
return (
<div>
<BreadCrumbHeader /> << HERE IT IS
<CategorySection backgroundurl="/images/home-slide-4-1920x800.jpg" fluid>
<CategoryContainer>
<CategoryRow>
{category && category.Products.map((productItem, i) => (
<CategoryItemCard key={productItem.ProductId}>
<CategoryItemTitle>{productItem.ProductName}</CategoryItemTitle>
<CategoryItemCardBody>
<ProductDescription>{productItem.Description}</ProductDescription>
<div>
<CategoryItemCardImg src={productItem.ProductImageUrl} alt={productItem.ProductName} />
</div>
</CategoryItemCardBody>
<AddToCartButton
data-item-id={productItem.ProductId}
data-item-price={productItem.Price}
data-item-url={productItem.ProductUrl}
data-item-description={productItem.Description}
data-item-image={productItem.ProductImageUrl}
data-item-name={productItem.ProductName}
{...dynamicProps[i]}>
ADD TO CART {productItem.Price}
</AddToCartButton>
</CategoryItemCard>
))}
</CategoryRow>
</CategoryContainer>
</CategorySection>
<RenderCmsComponents />
</div>
);
}
export default Category;
I found this post on stack overflow:
Why useEffect doesn't run on window.location.pathname changes?
I think this may be the solution to what I need, but I don't fully understand the accepted answer.
Can someone breakdown to be how I can fix my issue and maybe give me an explaination and possible some reading I can do to really understand how hooks work and how to use them in my situation.

Answer 1

It seems that you should re-call getBreadCrumbData every time when location.pathname was changed. In the code below I've added location.pathname to useEffect dependency list
const location = useLocation();
const [breadCrumbData, setBreadCrumbData] = useState([]);
const getBreadCrumbData = async () => {
const breadCrumbHeaderResponse = await API.fetchBreadCrumbHeader(location.pathname);
setBreadCrumbData(breadCrumbHeaderResponse);
};
useEffect(() => {
getBreadCrumbData();
}, [location.pathname]); // <==== here