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how to handle fetch errors

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answered on February 6, 2021 Popularity 10/10 Helpfulness 4/10

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how to handle fetch errors

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const response = await fetch(url);
if (response.status >= 200 && response.status <= 299) {
  const jsonResponse = await response.json();
  console.log(jsonResponse);
} else {
  // Handle errors
  console.log(response.status, response.statusText);
}

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: learnwithparam.com

Tags: javascript

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Contributed on Feb 06 2021

0 Answers Avg Quality 2/10

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how to get error using fetch API

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function handleErrors(response) {
    if (!response.ok) {
        throw Error(response.statusText);
    }
    return response;
}

// then use as below
fetch("http://httpstat.us/500")
    .then(handleErrors)
    .then(response => console.log("ok") )
    .catch(error => console.log(error) );

Popularity 10/10 Helpfulness 5/10 Language javascript

Source: Grepper

Tags: fetch-api fetc

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Contributed on Oct 05 2022

Lonely Lizard

0 Answers Avg Quality 2/10

how to get error using fetch API

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function CheckError(response) {
  if (response.ok) {
    return response.json();
  } else {
    throw Error(response.statusText);
  }
}

// Now call the function inside fetch promise resolver
fetch(url)
  .then(CheckError)
  .then((jsonResponse) => {
  }).catch((error) => {
  });

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: Grepper

Tags: fetch-api fetc

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Contributed on Oct 05 2022

Lonely Lizard

0 Answers Avg Quality 2/10

Basic fetch with error

Comment

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <h1>Test Page</h1>
    <!-- https://youtu.be/YJ7ZgGnhN5k by Steve Griffith -->
    <script>const root = 'http://jsonplaceholder.typicode.com';//url for fetch
        let id = Math.floor(Math.random() * 20) + 1;//random number. If >10, an error will be received, otherwise the data will be logged to the console
        let uri = root + '/users/' + id;
        console.log('Fetch: ', uri);

        fetch(uri).then(function (response) {
            if (response.status == 200) {
                return response.json();
            }
            else { throw new Error('Number is greater than 10') }
        }).then((data) => {
            console.log(data);
            let jsonData = JSON.stringify(data);
            console.log(jsonData);
        }).catch((err) => {
            console.log("Error: ", err.message);
        });</script>
</body>

</html>

Popularity 10/10 Helpfulness 2/10 Language html

Source: youtu.be

Tags: basic basi

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Contributed on Jan 29 2022

Meandering Meerkat

0 Answers Avg Quality 2/10

handle fetch error

Comment

[Solved] Getting “TypeError: Failed to fetch” when the request hasn’t actually failed

Popularity 1/10 Helpfulness 1/10 Language javascript

Source: exerror.com

Tags: fetch handle javascript

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Contributed on Jul 27 2021

Wandering Wryneck

0 Answers Avg Quality 2/10

how to handle fetch errors

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