NextJS: Error in getServerSideProps Function Using axios

Introduction

During the development of applications using NextJS, various errors can arise that complicate work and require careful analysis. One such issue is an error in the getServerSideProps function, which is used for fetching data on the server side. In this article, we will discuss how to resolve the problem with the "co

ect EADDRNOTAVAIL ip:443 - Local (ip:0)" error when using axios in getServerSideProps.

The Problem and Its Manifestation

A developer noticed that when trying to fetch data on the server side through the getServerSideProps function using the axios library, they encountered the error "co

ect EADDRNOTAVAIL ip:443 - Local (ip:0)". This error indicates issues with network co

ectivity or system settings.

Attempts to Solve the Issue

The user has already tried several approaches:

1. Updating NextJS to the latest version (version 12).
2. Checking the stability of the network co

ection. 3. Testing requests inside useEffect() to check functionality.

Despite these measures, the error continues to occur.

Analysis and Resolving the Issue

Versions and Settings

Firstly, it's important to verify the versions of the libraries being used and their configurations. Ensure that the axios and next versions are compatible and updated to the latest.

npm install next@latest axios@latest

Setting Headers

Check the correct configuration of headers in axios.defaults.headers.common. There might be a problem with the context.locale settings causing the error.

export async function getServerSideProps(context) {
  axios.defaults.headers.common['Lang'] = context.locale;

  try {
    const response = await axios.get('/index?limit=8');
    return { props: { data: response.data } };
  } catch (error) {
    return { props: { error: error.message } };
  }
}

Network and Proxy Setup

Co

ection errors could be related to network access issues or proxy servers. Check your machine or server's network and proxy settings.

Logging and Debugging

Add logging to the catch block to obtain more detailed information about the error:

try {
  const response = await axios.get('/index?limit=8');
  return { props: { data: response.data } };
} catch (error) {
  console.error('Error in getServerSideProps:', error);
  return { props: { error: error.message } };
}

Requests Inside useEffect()

Check if the similar request works inside useEffect():

useEffect(() => {
  axios.get('/index?limit=8')
    .then(response => console.log(response.data))
    .catch(error => console.error('Error in useEffect:', error));
}, []);

If the request inside useEffect() works, then the issue is likely related to the getServerSideProps settings.

Practical Tips

1. Check Network Configuration: Ensure that your network is not blocking requests or that proxy servers are correctly configured.
2. Update Dependencies: Make sure all dependencies are updated to the latest versions.
3. Add Logging: This will help identify the exact cause of the error.
4. Check Context: Ensure that the context is passed correctly in getServerSideProps.

Conclusion

The issue with the "co

ect EADDRNOTAVAIL ip:443 - Local (ip:0)" error when using axios in getServerSideProps can be caused by various factors such as incorrect header settings, network problems, or proxy settings. Checking and configuring these parameters can help resolve the issue.

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Tags

Tags: NextJS, getServerSideProps, axios, network errors, HTTP headers