curl send JSON request example: curl proxy send JSON tutorial

Brothers who engage in network request look over! Teach you how to send JSON with curl proxy.

Recently, there are brothers always ask, with curl JSON request how to hang proxy? Today we will use the most grounded way to break clear. Especially do data collection or interface debugging guys, this skill can definitely let you lose a few less hair.

Why do you have to use a proxy IP?

For example, if you continuously send requests to a certain website, their server will black out your IP in minutes. If you use theipipgoThe dynamic proxy pool, automatic switching of IP addresses, just like playing chicken games to open the stealth hang, the opposite side simply can not catch you.

// 请求（危险操作）
curl -X POST https://api.example.com/data 
  -H "Content-Type: application/json" 
  -d '{"key":"value"}'

// 带代理的安全姿势
curl -x http://123.45.67.89:8080 
  -X POST https://api.example.com/data 
  -H "Content-Type: application/json" 
  -d '{"key":"value"}'

Practical four-step tutorial

Here.ipipgoAs a chestnut for their proxy service, their home proxy address looks like this:

 Proxy request with authentication
curl -x http://用户名:密码@gateway.ipipgo.io:30001
  -H "Content-Type: application/json"
  -X POST https://你的目标地址
  -d '{"data": "important parameters"}'

A newbie's guide to avoiding the pitfalls

1. Don't forget the Content-Type!: many brothers planted in forget to add the request header, the server directly rejected to receive JSON data

2. Get the agency agreement right.: http interface on the use of http proxy, https interface is recommended to use https proxy, with the wrong protocol minutes to connect to fail!

3. Timeout settings should be reasonable: It is recommended to add the -connect-timeout parameter, especially when using free proxies!

Frequently Asked Questions QA

Q: What should I do if my proxy IP suddenly doesn't work?
A: In this case it is recommended to useipipgos auto-switching service, their API returns available proxy nodes in real time

Q: Is the slowing down of requests a proxy problem?
A: 80% of the proxy server is not powerful, you can tryipipgoThe exclusive high-speed channel of their home has specially optimized BGP lines

Q: Do I need to enter my account password every time?
A: You can either write dead authentication information directly in the curl command, or use theipipgoWhitelist authentication method provided to save hassle

Why do you recommend ipipgo?

This proxy pool is indeed large enough, the actual test at the same time running 20 crawler tasks have not appeared IP duplication. And there is a unique skill--Intelligent Route Matching，自动给你分配地理位置最近的代理节点，能降30%左右。最近还出了个新用户免费试用活动，注册就送1G流量，够测试用了。

Lastly, remember to follow the rules of the target site when using a proxy, don't be a sheep. Reasonable use of proxy IP, both to protect themselves and improve efficiency, which is a win-win right way.