Fehler beim Senden von E-Mails mit Sendgrid und NodeJS

Question

ich E-Mails mit Sendgrid und NodeJS Senden bekam aber den folgenden Fehler:

D:\NodejsCODE\email_app\app.js:19 
from_email = new helper.Email("test@example.com") 
         ^

TypeError: Cannot read property 'Email' of undefined 
at Object.<anonymous> (D:\NodejsCODE\email_app\app.js:19:24) 
at Module._compile (module.js:570:32) 
at Object.Module._extensions..js (module.js:579:10) 
at Module.load (module.js:487:32) 
at tryModuleLoad (module.js:446:12) 
at Function.Module._load (module.js:438:3) 
at Module.runMain (module.js:604:10) 
at run (bootstrap_node.js:394:7) 
at startup (bootstrap_node.js:149:9) 
at bootstrap_node.js:509:3 

und der Code:

var express = require('express'); 
var path = require('path'); 
var favicon = require('serve-favicon'); 
var logger = require('morgan'); 
var cookieParser = require('cookie-parser'); 
var bodyParser = require('body-parser'); 
var config = require('./config'); 

var index = require('./routes/index'); 
var users = require('./routes/users'); 

var app = express(); 
app.set('my_api_key', config.access_key); 
var helper = require('sendgrid').mail 

from_email = new helper.Email("test@example.com") 
to_email = new helper.Email("rahilansari261@gmail.com") 
subject = "Sending with SendGrid is Fun" 
content = new helper.Content("text/plain", "and easy to do anywhere, even with Node.js") 
mail = new helper.Mail(from_email, subject, to_email, content) 

var sg = require('sendgrid')(my_api_key); 
var request = sg.emptyRequest({ 
    method: 'POST', 
    path: '/v3/mail/send', 
    body: mail.toJSON() 
}); 

sg.API(request, function(error, response) { 
    console.log(response.statusCode) 
    console.log(response.body) 
    console.log(response.headers) 
}) 
// view engine setup 
app.set('views', path.join(__dirname, 'views')); 

var port   =  process.env.PORT || 3000; 
app.set('view engine', 'jade'); 

// uncomment after placing your favicon in /public 
//app.use(favicon(path.join(__dirname, 'public', 'favicon.ico'))); 
app.use(logger('dev')); 
app.use(bodyParser.json()); 
app.use(bodyParser.urlencoded({ extended: false })); 
app.use(cookieParser()); 
app.use(express.static(path.join(__dirname, 'public'))); 
// console.log("hlo"); 
app.use('/', index); 
app.use('/users', users); 

// catch 404 and forward to error handler 
app.use(function(req, res, next) { 
    var err = new Error('Not Found'); 
    err.status = 404; 
    next(err); 
}); 

// error handler 
app.use(function(err, req, res, next) { 
    // set locals, only providing error in development 
    res.locals.message = err.message; 
    res.locals.error = req.app.get('env') === 'development' ? err : {}; 

    // render the error page 
    res.status(err.status || 500); 
    res.render('error'); 
}); 
app.listen(port); 
console.log('Magic Happens @ http://localhost:' + port); 
module.exports = app; 

Answer 1

den folgenden Code verwendet und scheint um OK zu arbeiten. Kein Fehler in der Zeile, die Sie angegeben haben. Vielleicht ein Problem mit deiner Einrichtung?

var express = require('express'); 
var path = require('path'); 
var favicon = require('serve-favicon'); 
var logger = require('morgan'); 
var cookieParser = require('cookie-parser'); 
var bodyParser = require('body-parser'); 





var app = express(); 
app.set('my_api_key', 'key'); 
var helper = require('sendgrid').mail 

from_email = new helper.Email("test@example.com") 
to_email = new helper.Email("rahilansari261@gmail.com") 
subject = "Sending with SendGrid is Fun" 
content = new helper.Content("text/plain", "and easy to do anywhere, even with Node.js") 
mail = new helper.Mail(from_email, subject, to_email, content) 

var sg = require('sendgrid')(my_api_key); 
var request = sg.emptyRequest({ 
    method: 'POST', 
    path: '/v3/mail/send', 
    body: mail.toJSON() 
}); 

sg.API(request, function(error, response) { 
    console.log(response.statusCode) 
    console.log(response.body) 
    console.log(response.headers) 
}) 
// view engine setup 
app.set('views', path.join(__dirname, 'views')); 

var port   =  process.env.PORT || 3000; 
app.set('view engine', 'jade'); 

// uncomment after placing your favicon in /public 
//app.use(favicon(path.join(__dirname, 'public', 'favicon.ico'))); 
app.use(logger('dev')); 
app.use(bodyParser.json()); 
app.use(bodyParser.urlencoded({ extended: false })); 
app.use(cookieParser()); 
app.use(express.static(path.join(__dirname, 'public'))); 
// console.log("hlo"); 






// catch 404 and forward to error handler 
app.use(function(req, res, next) { 
    var err = new Error('Not Found'); 
    err.status = 404; 
    next(err); 
}); 

// error handler 
app.use(function(err, req, res, next) { 
    // set locals, only providing error in development 
    res.locals.message = err.message; 
    res.locals.error = req.app.get('env') === 'development' ? err : {}; 

    // render the error page 
    res.status(err.status || 500); 
    res.render('error'); 
}); 
app.listen(port); 
console.log('Magic Happens @ http://localhost:' + port); 
module.exports = app;