我是 Node JS 的初学者,我正在尝试使用它在 Twitter 上进行连接。我在 E:/ 目录中有一个 js 文件,但我不知道是否应该创建一个模块文件夹或使用以下代码
var express = require('express');
var sys = require('sys');
var oauth = require('oauth');
var app = express.createServer();
var _twitterConsumerKey = "****SECRET****";
var _twitterConsumerSecret = "****SECRET****";
function consumer() {
return new oauth.OAuth(
"https://twitter.com/oauth/request_token", "https://twitter.com/oauth/access_token",
_twitterConsumerKey, _twitterConsumerSecret, "1.0A", "http://badgestar.com/sessions/callback", "HMAC-SHA1");
}
app.configure('development', function(){
app.use(express.errorHandler({ dumpExceptions: true, showStack: true }));
app.use(express.logger());
app.use(express.cookieDecoder());
app.use(express.session());
});
app.dynamicHelpers({
session: function(req, res){
return req.session;
}
});
app.get('/', function(req, res){
res.send('Hello World');
});
app.get('/sessions/connect', function(req, res){
consumer().getOAuthRequestToken(function(error, oauthToken, oauthTokenSecret, results){
if (error) {
res.send("Error getting OAuth request token : " + sys.inspect(error), 500);
} else {
req.session.oauthRequestToken = oauthToken;
req.session.oauthRequestTokenSecret = oauthTokenSecret;
res.redirect("https://twitter.com/oauth/authorize?oauth_token="+req.session.oauthRequestToken);
}
});
});
app.get('/sessions/callback', function(req, res){
sys.puts(">>"+req.session.oauthRequestToken);
sys.puts(">>"+req.session.oauthRequestTokenSecret);
sys.puts(">>"+req.query.oauth_verifier);
consumer().getOAuthAccessToken(req.session.oauthRequestToken, req.session.oauthRequestTokenSecret, req.query.oauth_verifier, function(error, oauthAccessToken, oauthAccessTokenSecret, results) {
if (error) {
res.send("Error getting OAuth access token : " + sys.inspect(error) + "["+oauthAccessToken+"]"+ "["+oauthAccessTokenSecret+"]"+ "["+sys.inspect(results)+"]", 500);
} else {
req.session.oauthAccessToken = oauthAccessToken;
req.session.oauthAccessTokenSecret = oauthAccessTokenSecret;
// Right here is where we would write out some nice user stuff
consumer.get("http://twitter.com/account/verify_credentials.json", req.session.oauthAccessToken, req.session.oauthAccessTokenSecret, function (error, data, response) {
if (error) {
res.send("Error getting twitter screen name : " + sys.inspect(error), 500);
} else {
req.session.twitterScreenName = data["screen_name"];
res.send('You are signed in: ' + req.session.twitterScreenName)
}
});
}
});
});
app.listen(parseInt(process.env.PORT || 80));
但它在运行时给了我这个错误说:
module.js:340
throw err;
^
Error: Cannot find module 'express'
at Function.Module._resolveFilename (module.js
at Function.Module._load (module.js:280:25)
at Module.require (module.js:364:17)
at require (module.js:380:17)
at Object.<anonymous> (E:\hello.js:1:77)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:47
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Function.Module.runMain (module.js:497:10)