节点JS或Express JS HTTP GET请求

Question

我正在使用express.js，我需要调用HTTP GET请求，以获取JSON数据。请建议我一些不错的node js / express js modules / lib来执行get / post请求。

Answer 1

Node.js provides an extremely simple API for this functionality in the form of http.request .

var http = require('http');

//The url we want is: 'www.random.com/integers/?num=1&min=1&max=10&col=1&base=10&format=plain&rnd=new'
var options = {
  host: 'www.random.com',
  path: '/integers/?num=1&min=1&max=10&col=1&base=10&format=plain&rnd=new'
};

callback = function(response) {
  var str = '';

  //another chunk of data has been recieved, so append it to `str`
  response.on('data', function (chunk) {
    str += chunk;
  });

  //the whole response has been recieved, so we just print it out here
  response.on('end', function () {
    console.log(str);
  });
}

http.request(options, callback).end();

Here I attach some more examples with POST and custom headers. If you don't need special things, I'd stick to the native code.

Besides, Request , Superagent or Requestify are pretty good libraries to use.

Answer 2

var express = require('express');
var app = express();
var fs = require('fs');

app.get('/', function (req, res) {
    fs.readFile('./test.json', 'utf8', function (err, data) {
        if (err) {
            res.send({error: err});
        }
        res.send(data);
    })
});
var server = app.listen(3001, function () {
    console.log('Example app listening port 3001');
});