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how to fetch api in class component react

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Worrisome Weevil answered on January 4, 2022 Popularity 10/10 Helpfulness 4/10

answer how to fetch api in class component react

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how to fetch api in class component react

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//for functional components//


function MyComponent() {
  const [error, setError] = useState(null);
  const [isLoaded, setIsLoaded] = useState(false);
  const [items, setItems] = useState([]);

  // Note: the empty deps array [] means
  // this useEffect will run once
  // similar to componentDidMount()
  useEffect(() => {
    fetch("https://api.example.com/items")
      .then(res => res.json())
      .then(
        (result) => {
          setIsLoaded(true);
          setItems(result);
        },
        // Note: it's important to handle errors here
        // instead of a catch() block so that we don't swallow
        // exceptions from actual bugs in components.
        (error) => {
          setIsLoaded(true);
          setError(error);
        }
      )
  }, [])

  if (error) {
    return <div>Error: {error.message}</div>;
  } else if (!isLoaded) {
    return <div>Loading...</div>;
  } else {
    return (
      <ul>
        {items.map(item => (
          <li key={item.id}>
            {item.name} {item.price}
          </li>
        ))}
      </ul>
    );
  }
}

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: Grepper

Tags: class fetch-api javascript

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Contributed on Mar 25 2022

Worrisome Weevil

0 Answers Avg Quality 2/10

Closely Related Answers

fetch data from api in react

Comment

useEffect(() => {
    const url = "https://api.adviceslip.com/advice";

    const fetchData = async () => {
      try {
        const response = await fetch(url);
        const json = await response.json();
        console.log(json);
      } catch (error) {
        console.log("error", error);
      }
    };

    fetchData();
}, []);

Popularity 10/10 Helpfulness 6/10 Language javascript

Source: designcode.io

Tags: api

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Contributed on Jan 04 2022

Frail Fly

0 Answers Avg Quality 2/10

In React how can fetch API

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import React, { useState, useEffect } from 'react';

function MyComponent() {
  const [data, setData] = useState(null);

  useEffect(() => {
    fetchData();
  }, []);

  const fetchData = async () => {
    try {
      const response = await fetch('https://api.example.com/data');
      if (response.ok) {
        const jsonData = await response.json();
        setData(jsonData);
      } else {
        throw new Error('Error: ' + response.status);
      }
    } catch (error) {
      console.log(error);
    }
  };

  return (
    <div>
      {data ? (
        <ul>
          {data.map((item) => (
            <li key={item.id}>{item.name}</li>
          ))}
        </ul>
      ) : (
        <p>Loading...</p>
      )}
    </div>
  );
}

export default MyComponent;

Popularity 10/10 Helpfulness 5/10 Language javascript

Source: chat.openai.com

Tags: fetch-api fetc

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Contributed on Jun 23 2023

Deepak Singh

0 Answers Avg Quality 2/10

how to fetch api in class component react

Comment

//for calsses components//

class MyComponent extends React.Component {
  
  constructor(props) {
    super(props);
    this.state = {
      error: null,
      isLoaded: false,
      items: []
    };
  }

  componentDidMount() {
    fetch("https://api.example.com/items")
      .then(res => res.json())
      .then(
        (result) => {
          this.setState({
            isLoaded: true,
            items: result.items
          });
        },
        // Note: it's important to handle errors here
        // instead of a catch() block so that we don't swallow
        // exceptions from actual bugs in components.
        (error) => {
          this.setState({
            isLoaded: true,
            error
          });
        }
      )
  }

  render() {
    const { error, isLoaded, items } = this.state;
    if (error) {
      return <div>Error: {error.message}</div>;
    } else if (!isLoaded) {
      return <div>Loading...</div>;
    } else {
      return (
        <ul>
          {items.map(item => (
            <li key={item.id}>
              {item.name} {item.price}
            </li>
          ))}
        </ul>
      );
    }
  }
}

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: Grepper

Tags: class clas

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Contributed on Mar 25 2022

Worrisome Weevil

0 Answers Avg Quality 2/10

bsl get string length

Comment

(string-length str)

Popularity 3/10 Helpfulness 1/10 Language whatever

Source: docs.racket-lang.org

Tags: get string-length whatever

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Contributed on Sep 09 2024

Bloody Booby

0 Answers Avg Quality 2/10

how to fetch api in class component react

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In React how can fetch API

how to fetch api in class component react

bsl get string length

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