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This article will explain in detail how to use API that turns Sina long connection into short connection. The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article.

Sina short URL api is an official API that turns long links into short links, which can shorten lengthy link addresses to generate short links in t.cn/xxx format.

There are two formats for API

1. Http://lnurl.cn/sina/short-api?url_long=http://www.baidu.com

2. Http://kndwz.com/api-tcn.php?link=http://www.baidu.com

Request parameter

The API assigned when the API is called is authorized by key, which represents the unique identity of the user when calling the API. The url after url_long and link is a long link that needs to be converted. If you need URLencoded with parameters or special symbols in your url, otherwise the parameters may be lost.

Steps to apply for key

1. Enter the http://lnur.cn/api and select the API interface.

2. Go to the API management console after creating a unique user id.

3. The key,key for obtaining the authorization of the interface is the only identification of the request interface.

4. Copy the API interface address and you can call to generate a short link.

Instructions for using the API

1. Online use

The two APIs mentioned above are public interfaces, which can be called normally without authorization of key. If you need to use them online, you only need to replace the url behind url_long and link with the long links you need to convert, and then copy the full interface address to the browser to open it to generate short links.

2. Request API

Friends in great demand are advised to access the interface directly and request the interface to generate short links.

Example of an interface request

1. Example of PHP request:

$url = 'http://www.baidu.com';$api_url =' http://lnurl.cn/sina/short-api?url_long=http://www.baidu.com;$short_url = file_get_contents ($api_url); echo $short_url

2. Example of Java request:

Public static void main (String path []) throws Exception {URL u = new URL ("http://lnurl.cn/sina/short-api?url_long=http://www.baidu.com");InputStream in = u.openStream (); ByteArrayOutputStream out = new ByteArrayOutputStream (); try {byte buf [] = new byte [1024]; int read = 0X while (read = in .read (buf)) > 0) {out.write (buf, 0, read);}} finally {if (in! = null) {in .close () }} byte b [] = out.toByteArray (); System.out.println (new String (b, "utf-8"));}

3. Example of Python request:

Import urllib, urllib2, syshost = 'http://lnurl.cn'path =' / sina/short-api'method = 'GET'querys =' url_long=http%3A%2F%2Fwww.baidu.com'bodys = {} url = host + path +'?'+ querysrequest = urllib2.Request (url) response = urllib2.urlopen (request) content = response.read () if (content): print (content) Note:

1. When calling the API API, simply replace "http://www.baidu.com"" with a long link that needs to be shortened.

2. The interface supports parameters in the link, but it should be noted that when the & symbol appears in the link, use% 26 instead (or use url coding), otherwise the parameters may be lost.

3. When changing the link, you must start with http (s): / /, otherwise the generation of the short URL may fail or the generated short URL can not be redirected to the original website.

Frequently asked questions:

1. After the long link is converted, why are the parameters at the end lost?

A: because long links contain special characters, you need to encode the url and then use the API to generate it.

2. The API does not return a result. What is the situation?

A: sometimes there is a delay in the return of data from the API. If the timeout does not return, the generation fails, and the result will not be returned, or because the original link is blocked.

3. How long is the validity period of the generated short link? Is there a limit on the number of visits?

Answer: the generated Sina short link is permanent, there is no limit on the number of clicks, and you can rest assured to use it.

This is the end of this article on "how to use API that converts Sina long connection to short connection". I hope the above content can be helpful to you, so that you can learn more knowledge. if you think the article is good, please share it for more people to see.

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