Question 1

ipify vs public-ip: which one should I use for my Node.js app?

Accepted Answer

Use ipify if you're specifically tied to the Ipify service, such as self-hosting an instance. Otherwise, public-ip is generally better because it supports multiple services, offers faster lookups, and higher resilience, as mentioned in the README FAQ comparison.

Question 2

How to configure ipify to only use IPv4?

Accepted Answer

Set the useIPv6 option to false when calling the function. For example: `await ipify({useIPv6: false})` will fetch from the IPv4 endpoint and return an IPv4 address, as shown in the API documentation.

Question 3

Can ipify handle multiple endpoints for redundancy?

Accepted Answer

Yes, you can provide an array of endpoints in the endpoint option. The library tries them concurrently and uses the first successful response, which is useful for building fault-tolerant systems, as illustrated in the usage examples.

Question 4

Is ipify reliable for production use with high traffic?

Accepted Answer

It can be used in production, but reliability depends on the Ipify service's uptime. For critical applications, consider using custom endpoints or a more resilient library like public-ip to mitigate single points of failure.

Question 5

How do I integrate a self-hosted Ipify instance with this library?

Accepted Answer

Set the endpoint option to the URL of your self-hosted instance. For example: `await ipify({endpoint: 'https://your-ipify-instance.org'})`. Refer to the ipify-api project on GitHub for hosting instructions and setup.

Question 6

Does ipify have TypeScript support?

Accepted Answer

The package is maintained by sindresorhus, who commonly includes TypeScript definitions, so it likely supports TypeScript out of the box. Check the npm package or GitHub repository for details, but in practice, it should work seamlessly with modern TypeScript projects.

ipify

What is ipify?

Overview

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Pros & Cons

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Frequently Asked Questions