Btukfyl

I want to send an email from my nodejs server whenever i register a user. I'm using Angular5 as front-end. It doesn't return any error, but it doesn't work either. It's like my function is not being called at all. This is what I tried(email not real in this example):

server.js

app.post('/sendMails', function(req,res) {



    console.log("WENT INTO SEND MAILS!!!")





    let transporter = nodemailer.createTransport({

        service: 'gmail',

        secure: false,

        port: 25,

        auth: {

            user: 'someemail@gmail.com',

            pass: process.env.MAIL_PASSWORD

        },



        tls: {

            rejectUnauthorized: false

        },



    });



    let HelperOptions = {



        from: '"Babababa" <someemail@gmail.com>',

        to: 'someemail@gmail.com',

        subject: 'Hello world',

        text: 'hey dude'

    };



    transporter.sendMail(HelperOptions, (error, response) => {

        if(error) {

           return console.log(error);

           res.json({error: "API Error"});

        }



        else{

            console.log("The message is sent: " + response.message);

            res.json({response: "sent"})

        }









    })





    });

from Angular

UserService.ts (relevant parts)

constructor(private http: HttpClient) { }



      sendMail(user: User){

    console.log("sendMail()  was called.")

    return this.http.post("http://localhost:3000/sendMails", user.email);

  }

This is called in my registration component on signup

registration.component.ts

     public signUp(){



    //marks all fields as touched.

    this.fs.markFormGroupTouched(this.registerForm);





    if(this.registerForm.valid) {



      let user: User = this.registerForm.value;

      console.log(user)



      this.userService.createUser(user);

      this.userService.sendMail(user); //<--- only this is relevant for this case.



    }

    else {

      //shows the error messages, for the not valid input fields.

      this.formErrors = this.fs.validateForm(this.registerForm,

      this.formErrors, false)

    }







  }

When i run this code there's no errors. In the inspector/ client-side console window i see the message "sendMail() was called.", which means it's definetly calling my service. However, I recieve no mail nor any error

The http.post() inside sendMail() returns an observable. You must subscribe to this observable, otherwise it will not be executed.

So in registration.component.ts you need something like:

this.userService.sendMail(user).subscribe(

  response => {

    console.log(response);

  }

);

You also need to have a return statements in your sendMail function call. In the error block, the res.send is unreachable code. The edit code below:

app.post('/sendMails', function(req,res) {



    console.log("WENT INTO SEND MAILS!!!")





    let transporter = nodemailer.createTransport({

        service: 'gmail',

        secure: false,

        port: 25,

        auth: {

            user: 'someemail@gmail.com',

            pass: process.env.MAIL_PASSWORD

        },



        tls: {

            rejectUnauthorized: false

        },



    });



    let HelperOptions = {



        from: '"Babababa" <someemail@gmail.com>',

        to: 'someemail@gmail.com',

        subject: 'Hello world',

        text: 'hey dude'

    };



    transporter.sendMail(HelperOptions, (error, response) => {

        if(error) {

            console.log(error);

           return res.json({error: "API Error"}); // return should be here instead of at console.log

        }



        else{

            console.log("The message is sent: " + response.message);

            return res.json({response: "sent"})

        }









    })





    });