DEV Community

bilalouqda
bilalouqda

Posted on

2 1 1 1 1

How can I automatically navigate to a page specified in a link within an email when the user logs in automatically?

Here's a breakdown of the code and how it works:

Email Sending Function

async sendingEmail(email, ndfCollabName, message, numero, intitulé, Url) {
    const transporter = nodemailer.createTransport({
        host: 'smtp.office365.com',
        port: 587,
        secure: false,
        auth: {
            user: process.env.USER_EMAIL,
            pass: process.env.USER_PASS,
        },
    });
    const mailOptions = {
        from: 'fromEmail@gamil.com',
        to: email,
        subject: '',
        html: `
        <!DOCTYPE html>
        <html lang="fr">
        <head>
            <meta charset="UTF-8">
            <meta name="viewport" content="width=device-width, initial-scale=1.0">
            <title>test</title>
            <style>
                body {
                    font-family: Arial, sans-serif;
                    line-height: 1.6;
                    color: #333;
                    max-width: 600px;
                    margin: 0 auto;
                    padding: 20px;
                }
                h1 {
                    color: #007bff;
                }
                h2 {
                    color: #555;
                }
                .links {
                    margin-top: 20px;
                }
                .links a {
                    display: block;
                    margin-bottom: 10px;
                    color: #007bff;
                } 
            </style>
        </head>
        <body>
            <h1>Cher/Chère ${ndfCollabName.toUpperCase()},</h1>
            <h2>${message}, N° ${numero}, ${intitulé}.</h2>
            <div class="links">
                <a href="http://localhost:4000/?redirect=${encodeURIComponent(Url)}">Lien local</a>
            </div>
            <h2>Vérifiez ici👻</h2>
        </body>
        </html>
        `,
    };
    transporter.sendMail(mailOptions, function (error, info) {
        if (error) {
            console.log(error);
        } else {
            console.log('Email sent:' + info.response);
        }
    });
}

Enter fullscreen mode Exit fullscreen mode

Explanation:

Setup Transporter:

Configures Nodemailer to send emails using Office365 SMTP.
Mail Options:

Sets up the email with subject and HTML body, including links with a redirect query parameter.
Encode URL:

Uses encodeURIComponent to safely encode the Url for inclusion in the email links.
Send Mail:

Sends the email using transporter.sendMail.

@Post('login')
async login(
  @Body('id') id: string,
  @Body('password') password: string,
  @Body('company') company: Company,
  @Body('redirect') redirect: string,
  @Res({ passthrough: true }) response: Response,
) {
  const user = await this.collaborateursService.find({
    where: { nomtechnicien: id },
    relations: [
      'companies',
      'roles.role',
      'roles.company',
      'groups',
      'groupe',
    ],
  });

  if (!user) {
    throw new BadRequestException('Invalid credentials');
  }
  if (!(await bcrypt.compare(password, user.password))) {
    throw new BadRequestException('Invalid credentials');
  }
  if (!user.lastconnectedcompany) {
    await this.collaborateursService.lastConnectedCompany(user.id, user.companies[0]);
  }

  const jwt = await this.jwtService.signAsync({
    id: user.id,
    name: user.nomtechnicien,
    lastconnectedcompany: user.lastconnectedcompany || user.companies[0].name,
    rolesByCompanies: user.rolesByCompanies,
    groups: user.groups!,
    company: user.companies,
    companyId: user.companies.filter((company) =>
      user.lastconnectedcompany
        ? company.name == user.lastconnectedcompany
        : company.name == user.companies[0].name,
    )[0].identifiantBc,
  });
  response.cookie('jwt', jwt, { httpOnly: true });
  delete user.password;
  return {
    message: 'success',
    user,
    redirect: redirect ? decodeURIComponent(redirect) : null,
  };
}

Enter fullscreen mode Exit fullscreen mode

Find User:

Retrieves the user by id and checks credentials.
Generate JWT:

Creates a JWT token and sets it as a cookie.
Decode Redirect URL:

Decodes the redirect parameter from the request body.
Return Response:

Returns a success message and the decoded redirect URL.
Frontend Submission

const submit = async () => {
  setIsLoading(true);
  try {
    const res = await empLogin({ id: id, password: pass, redirect: redirectUrl });
    console.log(res);
    if (res.message === "success") {
      dispatch(login());
      // Navigate to the redirect URL provided in the response
      navigate(res.redirect);
    }
  } catch (error) {
    console.log(error);
    setError(true);
  } finally {
    setIsLoading(false);
  }
};

Enter fullscreen mode Exit fullscreen mode

Submit Login:

Sends login request with id, password, and redirect URL.
Handle Response:

If login is successful, navigates to the URL provided in the redirect field of the response.
Error Handling:

Catches and logs any errors during the process.
This setup ensures that when a user logs in, they are automatically redirected to the URL specified in the email link.

Top comments (0)

Image of Docusign

🛠️ Bring your solution into Docusign. Reach over 1.6M customers.

Docusign is now extensible. Overcome challenges with disconnected products and inaccessible data by bringing your solutions into Docusign and publishing to 1.6M customers in the App Center.

Learn more