Javascript http请求函数赢得';返回结果
我正在用Express.js设置一个服务器,我想要一个对“/”的“GET”请求来返回函数的结果。函数正在从新闻API发出get请求。当我调用“/”时,函数被触发,结果(“故事”)被记录在控制台中,但在对“/”GET”请求的响应中没有发送任何内容。 我试着把“return”语句放在几个不同的地方,但仍然不起作用。。。任何想法都将不胜感激!谢谢 app.jsJavascript http请求函数赢得';返回结果,javascript,node.js,function,express,requestjs,Javascript,Node.js,Function,Express,Requestjs,我正在用Express.js设置一个服务器,我想要一个对“/”的“GET”请求来返回函数的结果。函数正在从新闻API发出get请求。当我调用“/”时,函数被触发,结果(“故事”)被记录在控制台中,但在对“/”GET”请求的响应中没有发送任何内容。 我试着把“return”语句放在几个不同的地方,但仍然不起作用。。。任何想法都将不胜感激!谢谢 app.js var express = require('express'); var app = express(); var stories = re
var express = require('express');
var app = express();
var stories = require('./stories.js')
app.get('/', function(req, res){
var returnedStories = stories.searchStories();
res.send(returnedStories);
})
var server = app.listen(3000, function () {
var host = server.address().address;
var port = server.address().port;
console.log('going live on port', host, port);
});
var express = require('express');
var app = express();
var stories = require('./stories.js')
app.get('/', function(req, res){
stories.searchStories(function (returnedStories) {
res.send(returnedStories);
});
})
var server = app.listen(3000, function () {
var host = server.address().address;
var port = server.address().port;
console.log('going live on port', host, port);
});
stories.js
var request = require('request');
function searchStories(){
var stories = '';
request({
url:'http://content.guardianapis.com/search?q=christopher%20nolan&api-key=3th9f3egk2ksgp2hr862m4c9',
json: true},
function (error, response, body) {
if (!error && response.statusCode == 200) {
console.log(body.response.results) ;
stories = body.response.results;
return stories;
}
})
};
module.exports = {
searchStories: searchStories
}
module.exports.searchStories = function (callback) {
var stories;
// GET your stories then execute the callback with the result
stories = [
{id: 1, name: "story 1"},
{id: 2, name: "story 2"}
];
callback(stories);
}
这是一个异步问题<执行
res.send
时,代码>搜索故事功能未完成
您可以使用promise()或回调。我会给你一个回调的例子
stories.js
var request = require('request');
function searchStories(){
var stories = '';
request({
url:'http://content.guardianapis.com/search?q=christopher%20nolan&api-key=3th9f3egk2ksgp2hr862m4c9',
json: true},
function (error, response, body) {
if (!error && response.statusCode == 200) {
console.log(body.response.results) ;
stories = body.response.results;
return stories;
}
})
};
module.exports = {
searchStories: searchStories
}
module.exports.searchStories = function (callback) {
var stories;
// GET your stories then execute the callback with the result
stories = [
{id: 1, name: "story 1"},
{id: 2, name: "story 2"}
];
callback(stories);
}
app.js
var express = require('express');
var app = express();
var stories = require('./stories.js')
app.get('/', function(req, res){
var returnedStories = stories.searchStories();
res.send(returnedStories);
})
var server = app.listen(3000, function () {
var host = server.address().address;
var port = server.address().port;
console.log('going live on port', host, port);
});
var express = require('express');
var app = express();
var stories = require('./stories.js')
app.get('/', function(req, res){
stories.searchStories(function (returnedStories) {
res.send(returnedStories);
});
})
var server = app.listen(3000, function () {
var host = server.address().address;
var port = server.address().port;
console.log('going live on port', host, port);
});
可能重复的