Node.js Web Requests: Fetch Module Best Practices

Hands-on with Node.js to mess with network requests

Anyone who's ever worked with crawlers knows that what's the biggest fear of using Node.js for web requests?IP blocked!This time we have to move out of the proxy IP this savior. Let's not whole false today, directly on the dry goods to say how to use the fetch module with the proxy IP to play skilfully.

Why do I have to use a proxy IP?

For example, if you visit a website more than ten times in a row, the server will directly blacklist your IP. If you can use a proxy IP at this time, it is equivalent to every time you go out to change a vest, the site simply can not recognize who you are. Here must be favorableipipgoHome service, their IP pool is large enough that changing IPs is as easy as changing clothes.

Configure the agent's tart operation

Setting up a proxy with fetch in Node.js is actually quite simple, and here are two poses to teach you:

Take a real case:

const fetch = require('node-fetch');
const {HttpsProxyAgent} = require('https-proxy-agent');

// Here's an example of a proxy using ipipgo
const proxy = 'https://user:pass@proxy.ipipgo.com:8080';
const agent = new HttpsProxyAgent(proxy);

await fetch('Target URL', {agent});

Avoid these pitfalls

1. What should I do if the agent suddenly has a seizure?It's recommended to use ipipgo's auto-switching feature, they automatically change the available IPs in the background.
2. Requests at a snail's pace?Try their specialized high-speed channel node, which has been measured to be more than 3 times faster.
3. Don't panic about certificate errorsIn the agent configuration, add arejectUnauthorized: falseIt'll work out.

Advanced Tips for Veteran Drivers

- Remember to use theConnection Pool ManagementDon't blow up their servers.
- It's in the ipipgo package.exclusive IP poolOptions for projects that require stability
- Regularly check proxy availability, their home API returns IP health status in real-time

Frequently Asked Questions QA

Q: The agent is not working when I use it?
A: This is a normal phenomenon, it is recommended to use ipipgo's pay-as-you-go package, which automatically replaces new IPs

Q: How do I test the proxy speed?
A: Write a simple timing script, or directly use the speed measurement tool provided by the ipipgo backend

Q: What if I want to send hundreds of requests at the same time?
A: on ipipgo's enterprise version of the package, support for highly concurrent requests, remember to do a good job in the code queue control

Lastly, don't just look at the price when choosing a proxy service. Like ipipgo can provide complete technical support, out of the problem can find someone to solve in time, this is really save money. Their technical documentation written in a special grounded, novice copy according to the homework can run up, pro-test reliable!