I just started learning javascript and react-redux, and I'm using useEffect to call POST method. So, I am wondering how to make it not send request to my backend whenever I open or refresh website
my HTTP Post looks like:
export const sendItemData = (items) => {
return async () => {
const sendRequest = async () => {
const response = await fetch("http://localhost:51044/api/Items", {
method: "POST",
body: JSON.stringify(items.Items),
headers: {
"Content-Type": "application/json",
Accept: "application/json",
},
credentials: "same-origin",
});
if (!response.ok) {
throw new Error("Sending data failed!");
}
};
try {
await sendRequest();
} catch (error) {
console.log(error);
}
};
};
and my App.js looks like:
import React from "react";
import { useEffect } from "react";
import { useDispatch, useSelector } from "react-redux";
import Items from "./components/Items ";
import { sendItemData } from "./store/items-actions";
function App() {
const dispatch = useDispatch();
const sendItems = useSelector((state) => state.items);
useEffect(() => {
dispatch(sendItemData(sendItems));
}, [sendItems, dispatch]);
return <Items />;
}
export default App;
Ok, this is my way, tray it
export function MyComp(props) {
const initial = useRef(true)
useEffect(() => {
if (!initial.current) {
// Yoyr code
} else {
// Mark for next times
initial.current = false;
}
}, [args]);
return (
<YourContent />
);
}