从回调中存储数据库中的数据

Question

我正在做 node js 项目，我正在使用 ipstack 从 IP 获取用户数据。无法理解如何从回调函数中获取数据并将其插入到我的数据库中。

这是我的代码

const ipstack = require('ipstack');

const ip = '103.195.74.60';
ipstack(ip, process.env.IPSTACK, (err, response) => {
    console.log(response);
});

在此处插入查询

// create user
await User.create({
    fullName,
    phone,
    email,
    nikeName,
    ip,
    city (come from ip),
    zip (come from ip),
    browser,
    device,
});

Answer 1

您可以只需要在使用 console.log 调用的位置精确地进行数据库牵引，如下所示：

const ipstack = require("ipstack");

const ip = "103.195.74.60";
ipstack(ip, process.env.IPSTACK, (err, response) => {
  // First of all you need to check if there is error
  if (err){
    // handle error  hreer, you might need to use `return`
    // at some point to not execute the below code, alternatively 
    // you could just wrap it in `else`
               }
    console.log(response); // your orginal `console.log` call

  //your  database transaction ca be done here,
  // create user
  
            await User.create({
                fullName,
                phone,
                email,
                nikeName,
                ip,
                response.city // need to look in documentation 
                response.zip // or explore the response object terminal 
                browser,
                device,
            })
            
});

我访问响应键的代码部分是推测，您只需要查找 ipstack 包的文档（如果存在），或者只需浏览给您的模式 response是 console.log.

最后，我建议使用 official documentation given the lipstick is not really maintained the last update was 3 years ago, add to that by following the official documentation you could use fetch or axios and take advantage of async await 功能，这是当前处理异步代码的现代方法*。

*这可能是约定俗成的观点。

Answer 2

@Ghassan Maslamani 在按照您的建议进行操作后一直运行顺利。检查代码，如果需要对代码进行任何改进，请指导我。再次感谢。

    // get user ip
    const ip = req.headers['x-forwarded-for'] || req.socket.remoteAddress;
    // location details through Api call
    const url = `http://api.ipstack.com/${ip}?access_key=${process.env.IPSTACK}`;
    async function locationInfo() {
        try {
            const result = await axios.get(url);
            const data = await result.data;
            return data;
        } catch (error) {
            console.log(error);
        }
    }
    const locInfo = await locationInfo();
    // City name
    const location = `${locInfo.city},${locInfo.country_name}`;
    // zip code
    const { zip } = locInfo;

从回调中存储数据库中的数据

store data from database from call back

javascript

callback

asynccallback

node.js