it is generally not recommended to use synchronous requests in React because they can cause performance issues and make your application less responsive. Instead, you can use the useEffect hook to make asynchronous requests and control the order in which they are executed.
Here is an example of how you could use the useEffect hook to run your custom hook 1 and then your custom hook 2:
CODE
import React, { useState, useEffect } from 'react';
function MyComponent() {
const [data1, setData1] = useState(null);
const [data2, setData2] = useState(null);
useEffect(() => {
// Run custom hook 1 here
customHook1();
}, []);
useEffect(() => {
// Run custom hook 2 here, only after custom hook 1 has completed
if (data1) {
customHook2();
}
}, [data1]);
Here is an example of how you can make an asynchronous request using the useEffect hook:
CODE
import React, { useState, useEffect } from 'react';
function MyComponent() {
const [data, setData] = useState(null);
useEffect(() => {
fetch('https://my-api.com/data')
.then(response => response.json())
.then(data => setData(data));
}, []);
return (
// render your component here
);
}
In the above example, the useEffect hook is used to make an asynchronous request to the
https://my-api.com/data endpoint. The hook will only run when the component is first rendered, so the data will be loaded before the component is rendered.
If you want to use multiple custom hooks and ensure that one hook runs after the other, you can use the useEffect hook to control the order in which they are executed. For example, you could do something like this:
CODE
import React, { useState, useEffect } from 'react';
function MyComponent() {
const [data1, setData1] = useState(null);
const [data2, setData2] = useState(null);
useEffect(() => {
fetch('https://my-api.com/data1')
.then(response => response.json())
.then(data => setData1(data));
}, []);
useEffect(() => {
if (data1) {
fetch('https://my-api.com/data2')
.then(response => response.json())
.then(data => setData2(data));
}
}, [data1]);
return (
// render your component here
);
}
In the above example, the useEffect hook is used to make two asynchronous requests. The first request is made when the component is first rendered, and the second request is made only after the first request has completed and data1 has been set. This ensures that the second request is only made after the first request has completed, and that data2 is only set after data1 has been set.
This post has been edited by cYus: Dec 9 2022, 03:00 PM