v2talk.js

// v2ex不容易看到对话。于是我写了一个爬虫，抓出两人的对话，谁是谁非，大家自行判断。哈哈有趣。
/*
Title:从v2ex内提取两人的对话	
Paramters:PostID,userid1,userid2
Procedure:
  1. 提出对应帖子的全部回复
	2. 过滤条件：是IDList内的id发出的帖子，并且帖子内@了另外一个id的
	3. 帖子字段保留
API:
  获取指定主题下的回复
	GET topics/:topic_id/replies	
	可选参数：	
	p - 分页页码，默认为 1
	完整例子：
	GET https://www.v2ex.com/api/v2/topics/1/replies?p=2 
  Authorization: Bearer XXX
帖子ID	849548
	topics/849548
  
*/

var fs = require('fs')
// 把你自己的secret写道文件secret.txt内
const secret = fs.readFileSync("secret.txt").toString();
console.log(secret)
async function fr (url){
  var result = await fetch(url,{headers: {'Authorization': `Bearer ${secret}`}})
  return await result.json()
}
(async(id,u1,u2)=>{
  var r = await fr(`https://www.v2ex.com/api/v2/topics/${id}`)
  var rc = r.result.replies
  var page = Math.ceil(rc/20)
  var arr = []
  for (let index = 0; index < page; index++) {
    var r = await fr(`https://www.v2ex.com/api/v2/topics/${id}/replies?p=`+(index+1))    
    r.result.forEach(element => {if(element.member.username==`${u1}` ||element.member.username==`${u2}`)arr.push([element.member.username,element.content])});
  }  
  const result = arr.filter(word => word[1].includes(`@${u1}`) || word[1].includes(`@${u2}`));
  result.forEach(element=>{
    console.log()
    console.log(`\n====${element[0]}====\n`,element[1])
  })
  // console.log(result);
})(849548,'Suddoo','glfpes')