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fetch-react-hook

v1.0.4

Published

Performant, flexible and extensible fetch library for React Hooks

Downloads

23

Readme

fetch-react-hook

A simple, safe fetch custom hook for React. Why safe? There's a good chance you've seen this before:

Warning: Can’t perform a React state update on an unmounted component. This is a no-op, but it indicates a memory leak in your application. To fix, cancel all subscriptions and asynchronous tasks in a useEffect cleanup function.

This hook helps you avoid mutating state on components that are unmounted by providing you with the mounted state of the hook, and aborts in-flight requests on unmount.

Install

npm install fetch-react-hook
# or, if using yarn
yarn add fetch-react-hook

Usage

This example demonstrates how you might get some todos with useFetch while being sure you don't mutate state after your component is unmounted.

import React, { useEffect, useState } from "react";
import { FetchProvider } from "fetch-react-hook";

function TodoList() {
  return (
    <FetchProvider>
      <TodoList />
    </FetchProvider>
  );
}
import React, { useEffect, useState } from "react";
import useFetch from "fetch-react-hook";

function TodoList() {
  const {
    reFetch,
    isPending,
    data: todos,
    status,
    setData,
  } = useFetch(
    () =>
      fetch("https://jsonplaceholder.typicode.com/todos/").then((res) =>
        res.json()
      ),
    {
      autoFetch: true,
      onSuccess: (response) => {},
      onFinish: () => {},
      catchKey: "catch",
      onDataSetter: (response) => response,
    }
  );

  return (
    <div>
      {todos.map((todo) => {
        return <span key={todo.id}>{todo.title}</span>;
      })}
    </div>
  );
}