Nodejs decode gmail email

A interesting task!

To decode a Gmail email using Node.js, you'll need to use the imap library to connect to Gmail's IMAP server and retrieve the email. Then, you can use the mime library to decode the email's body.

Here's a step-by-step guide:

Step 1: Install required libraries

Run the following command in your terminal:

npm install imap mime

Step 2: Set up IMAP connection

Create a new Node.js file (e.g., gmail-decode.js) and add the following code:

const Imap = require('imap');
const MailParser = require('mailparser').MailParser;

// Set up IMAP connection
const imap = new Imap({
  user: 'your-gmail-username',
  password: 'your-gmail-password',
  host: 'imap.gmail.com',
  port: 993,
  tls: true
});

// Connect to IMAP server
imap.connect((err) => {
  if (err) {
    console.error(err);
    return;
  }
  console.log('Connected to IMAP server');
});

Replace your-gmail-username and your-gmail-password with your actual Gmail credentials.

Step 3: Retrieve email

Use the imap.search method to search for emails and retrieve the desired email:

// Search for emails
imap.search(['UNSEEN'], (err, results) => {
  if (err) {
    console.error(err);
    return;
  }
  const emailId = results[0].id;
  console.log(`Retrieving email ${emailId}`);

  // Retrieve email
  imap.fetch(emailId, {
    bodies: ['HEADER.FIELDS (FROM TO SUBJECT DATE)'],
    struct: true
  }, (err, results) => {
    if (err) {
      console.error(err);
      return;
    }
    const email = results[0];
    console.log(`Email retrieved: ${email.id}`);

    // Decode email body
    const mailParser = new MailParser();
    mailParser.parse(email.body, (err, mail) => {
      if (err) {
        console.error(err);
        return;
      }
      console.log(`Email decoded: ${mail.subject}`);
      console.log(`From: ${mail.from[0].address}`);
      console.log(`Body: ${mail.text}`);
    });
  });
});

This code searches for unseen emails, retrieves the first email, and then decodes the email body using the MailParser library.

Step 4: Run the script

Run the script using Node.js:

node gmail-decode.js

This will connect to your Gmail account, retrieve the first unseen email, and decode its body.

Note: Make sure to enable IMAP access in your Gmail settings and allow less secure apps to access your account. Also, be aware that storing your Gmail credentials in plain text is not recommended for production environments.