When dealing with errors in fetching JSON data, consider implementing a robust error handling strategy and

Question

When dealing with errors in fetching JSON data, consider implementing a robust error handling strategy and

Is there a way to provide a fallback JSON string in case the fetch URL fails to connect?

const Response3 = await fetch(`https://example.com/match/get?_=&id=${matchlist[2].id}`)

javascript arrays json fetch

Answer 1

Answer №1

To handle potential errors, consider implementing a try/catch block.

let DataResponse;

try {
  DataResponse = await fetch(`https://example.com/data/get`);
  if (!DataResponse.ok)
    throw new Error(DataResponse.statusText);
} catch (error) {
  DataResponse = {
    info: 'default data'
  }
}
// Process the DataResponse accordingly in this section.

Answer 2

To handle potential errors, consider implementing a try/catch block.

let DataResponse;

try {
  DataResponse = await fetch(`https://example.com/data/get`);
  if (!DataResponse.ok)
    throw new Error(DataResponse.statusText);
} catch (error) {
  DataResponse = {
    info: 'default data'
  }
}
// Process the DataResponse accordingly in this section.

Answer 3

Answer №2

Here is the solution for you

async function verifyServerStatus(url) {
      const serverResponse = await fetch(url);
      
      let modifiedResponse =
        serverResponse.status === 404 ? 'Cannot establish connection to the server' : serverResponse;

      console.log(modifiedResponse);
    }
    
    verifyServerStatus();

If you require further clarification, or if this does not address your question, feel free to leave a comment on my response

Answer 4

Here is the solution for you

async function verifyServerStatus(url) {
      const serverResponse = await fetch(url);
      
      let modifiedResponse =
        serverResponse.status === 404 ? 'Cannot establish connection to the server' : serverResponse;

      console.log(modifiedResponse);
    }
    
    verifyServerStatus();

If you require further clarification, or if this does not address your question, feel free to leave a comment on my response

Answer 5

Answer №3

If you want to utilize fetch as a promise, simply add .then at the end of the fetch call and then handle the response accordingly.

const Response3 = await fetch(url).then((response) => {
  // Verify if the response is successful
  if (response.status === 200) {
    return response.json(); // Returns data from the API call
  } else {
    // If not successful, perform another call
    fetch(otherUrl).then(res2 => {
      if (res2.status === 200) {
        return response.json(); // Return data if the second call succeeds
      }
    })
  }
})

To delve deeper into promises, check out this resource: https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API/Using_Fetch

Answer 6

If you want to utilize fetch as a promise, simply add .then at the end of the fetch call and then handle the response accordingly.

const Response3 = await fetch(url).then((response) => {
  // Verify if the response is successful
  if (response.status === 200) {
    return response.json(); // Returns data from the API call
  } else {
    // If not successful, perform another call
    fetch(otherUrl).then(res2 => {
      if (res2.status === 200) {
        return response.json(); // Return data if the second call succeeds
      }
    })
  }
})

To delve deeper into promises, check out this resource: https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API/Using_Fetch

When dealing with errors in fetching JSON data, consider implementing a robust error handling strategy and

Answer №1

Answer №2

Answer №3

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