How to send email with attachment in Node.js

How to send email with attachment in Node.js

Email is one of the most used tools for communication in web applications because it helps you reach your users directly, build your brand, or send general notifications.

So, you are thinking about sending emails from your next great Node.js application.
Today we are going to discuss about send email via nodejs. We will use nodemailer module amd gmail smtp to send the email. We will also learn how to send email with attachment. So let’s get started with the node js send email with attachment tutorial

Installing Nodemailer

npm install nodemailer

Next, include the nodemailer module in your application

var nodemailer = require('nodemailer');

Configure Nodemailer with Gmail

The nodemailer needs a transport service using which it can send emails. Use the username and password from your selected email provider to send an email. This tutorial will show you how to use your Gmail account to send an email:


var mail = nodemailer.createTransport({
  service: 'gmail',
  auth: {
    user: '[email protected]',
    pass: 'your-gmail-password'
  }
});

Before sending email using gmail you have to allow non secure apps to access gmail you can do this by going to your gmail settings here.

Once less secure apps is enabled now nodemailer can use your gmail for sending the emails.

Sending Email

Now you are ready to send emails from your server.


var mailOptions = {
  from: '[email protected]',
  to: '[email protected]',
  subject: 'Sending Email via Node.js',
  text: 'That was easy!'
};
 
transporter.sendMail(mailOptions, function(error, info){
  if (error) {
    console.log(error);
  } else {
    console.log('Email sent: ' + info.response);
  }
});

Multiple Receivers

Send email to multiple user at same time

var mailOptions = {
  from: '[email protected]',
  to: '[email protected], [email protected]',
  subject: 'Sending Email using Node.js',
  text: 'That was easy!'
}

Send HTML

To send HTML formatted text in your email, use the “html” property instead of the “text” property:


var mailOptions = {
   from: '[email protected]',
   to: '[email protected], [email protected]',
   subject: 'Sending Email using Node.js',
   html: '<h1>Welcome</h1><p>That was easy!</p>' 
 }

Send Attachment

attachments option in the message object that contains an array of attachment objects.


var mailOptions = {
  from: '[email protected]',
  to: '[email protected]',
  subject: 'Sending Email using Node.js',
  text: 'That was easy!',
  attachments: [{   // utf-8 string as an attachment
            filename: 'text1.txt',
            content: 'hello world!'
        },
        {   // binary buffer as an attachment
            filename: 'text2.txt',
            content: new Buffer('hello world!','utf-8')
        },
        {   // file on disk as an attachment
            filename: 'text3.txt',
            path: '/path/to/file.txt' // stream this file
        },
        {   // filename and content type is derived from path
            path: '/path/to/file.txt'
        },
        {   // stream as an attachment
            filename: 'text4.txt',
            content: fs.createReadStream('file.txt')
        },
        {   // define custom content type for the attachment
            filename: 'text.bin',
            content: 'hello world!',
            contentType: 'text/plain'
        },
        {   // use URL as an attachment
            filename: 'license.txt',
            path: 'https://raw.github.com/nodemailer/nodemailer/master/LICENSE'
        },
        {   // encoded string as an attachment
            filename: 'text1.txt',
            content: 'aGVsbG8gd29ybGQh',
            encoding: 'base64'
        },
        {   // data uri as an attachment
            path: 'data:text/plain;base64,aGVsbG8gd29ybGQ='
        }
    ]
}

After above changes our app.js file will looks like this

var nodemailer = require('nodemailer');
 
var mail = nodemailer.createTransport({
  service: 'gmail',
  auth: {
    user: '[email protected]',
    pass: 'your-gmail-password'
  }
});
 
var mailOptions = {
   from: '[email protected]',
   to: '[email protected], [email protected]',
   subject: 'Sending Email using Node.js',
   html: '<h1>Welcome</h1><p>That was easy!</p>' ,
   attachments: [{
       filename: 'text1.txt',
       content: 'hello world!'
   }
}
 
mail.sendMail(mailOptions, function(error, info){
      if (error) {
        console.log(error);
      } else {
        console.log('Email sent: ' + info.response);
      }
});

Conclusion

You can now easily send personalized emails in your Node.js code using the nodemailer module. And don't forget, the nodemailer documentation is your best friend for learning about the more advanced options.

Learn More

Thanks for reading !

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How to get started Internationalization in JavaScript with NodeJS

How to get started Internationalization in JavaScript with NodeJS

Tutorial showing how to use the Intl JS API in NodeJS (i18n). We'll install a module to unlock the Intl API languages for Node and test out RelativeTimeFormat to translate and localise relative times in JavaScript.

Tutorial showing how to use the Intl JS API in NodeJS (i18n). We'll install a module to unlock the Intl API languages for Node and test out RelativeTimeFormat to translate and localise relative times in JavaScript. I'll tell you how to get started with the built-in internationalization library in JS for Node 12 and higher. We'll change the locale to see how the translation works and test different BCP 47 language tags.

Internationalization is a difficult undertaking but using the Intl API is an easy way to get started, it's great to see this new API in the JS language and available for use. Soon, you'll be able to have confidence using it in the browser as modern browsers support the major Intl features. Have a look at the browser compatibility charts to see which browsers and versions of node are supported.

Use Intl.RelativeTimeFormat for language-sensitive relative time formatting.
#javascript #nodejs #webdevelopment

MDN Documentation:

https://developer.mozilla.org/en-US/d...

Full ICU NPM package:

https://www.npmjs.com/package/full-icu

How to Build a Vanilla JavaScript + NodeJS GUI Content Tool

How to Build a Vanilla JavaScript + NodeJS GUI Content Tool

Learn how to build a vanilla JavaScript + NodeJS GUI content tool that creates HTML files, with this beginner-friendly tutorial.

Learn how to build a vanilla JavaScript + NodeJS GUI content tool that creates HTML files, with this beginner-friendly tutorial.

This tutorial includes:

  1. Project File Structure 1:35
  2. How to Create the HTML form 2:52
  3. How to write the vanilla front end JavaScript 7:28
  4. NPM / Install Instructions 11:31
  5. Back end NodeJS + ExpressJS 12:52
  6. How to Test the App 19:54
  7. Suggested features to add to the tool 22:04

NodeJS + Vanilla JavaScript GUI Content Tool Code:
https://www.codingcommanders.com/guijs/

JavaScript Tutorial: if-else Statement in JavaScript

JavaScript Tutorial: if-else Statement in JavaScript

This JavaScript tutorial is a step by step guide on JavaScript If Else Statements. Learn how to use If Else in javascript and also JavaScript If Else Statements. if-else Statement in JavaScript. JavaScript's conditional statements: if; if-else; nested-if; if-else-if. These statements allow you to control the flow of your program's execution based upon conditions known only during run time.

Decision Making in programming is similar to decision making in real life. In programming also we face some situations where we want a certain block of code to be executed when some condition is fulfilled.
A programming language uses control statements to control the flow of execution of the program based on certain conditions. These are used to cause the flow of execution to advance and branch based on changes to the state of a program.

JavaScript’s conditional statements:

  • if
  • if-else
  • nested-if
  • if-else-if

These statements allow you to control the flow of your program’s execution based upon conditions known only during run time.

  • if: if statement is the most simple decision making statement. It is used to decide whether a certain statement or block of statements will be executed or not i.e if a certain condition is true then a block of statement is executed otherwise not.
    Syntax:
if(condition) 
{
   // Statements to execute if
   // condition is true
}

Here, condition after evaluation will be either true or false. if statement accepts boolean values – if the value is true then it will execute the block of statements under it.
If we do not provide the curly braces ‘{‘ and ‘}’ after if( condition ) then by default if statement will consider the immediate one statement to be inside its block. For example,

if(condition)
   statement1;
   statement2;

// Here if the condition is true, if block 
// will consider only statement1 to be inside 
// its block.

Flow chart:

Example:

<script type = "text/javaScript"> 

// JavaScript program to illustrate If statement 

var i = 10; 

if (i > 15) 
document.write("10 is less than 15"); 

// This statement will be executed 
// as if considers one statement by default 
document.write("I am Not in if"); 

< /script> 

Output:

I am Not in if
  • if-else: The if statement alone tells us that if a condition is true it will execute a block of statements and if the condition is false it won’t. But what if we want to do something else if the condition is false. Here comes the else statement. We can use the else statement with if statement to execute a block of code when the condition is false.
    Syntax:
if (condition)
{
    // Executes this block if
    // condition is true
}
else
{
    // Executes this block if
    // condition is false
}


Example:

<script type = "text/javaScript"> 

// JavaScript program to illustrate If-else statement 

var i = 10; 

if (i < 15) 
document.write("10 is less than 15"); 
else
document.write("I am Not in if"); 

< /script> 

Output:

i is smaller than 15
  • nested-if A nested if is an if statement that is the target of another if or else. Nested if statements means an if statement inside an if statement. Yes, JavaScript allows us to nest if statements within if statements. i.e, we can place an if statement inside another if statement.
    Syntax:
if (condition1) 
{
   // Executes when condition1 is true
   if (condition2) 
   {
      // Executes when condition2 is true
   }
}

Example:

<script type = "text/javaScript"> 

// JavaScript program to illustrate nested-if statement 

var i = 10; 

if (i == 10) { 

// First if statement 
if (i < 15) 
	document.write("i is smaller than 15"); 

// Nested - if statement 
// Will only be executed if statement above 
// it is true 
if (i < 12) 
	document.write("i is smaller than 12 too"); 
else
	document.write("i is greater than 15"); 
} 
< /script> 

Output:

i is smaller than 15
i is smaller than 12 too
  • if-else-if ladder Here, a user can decide among multiple options.The if statements are executed from the top down. As soon as one of the conditions controlling the if is true, the statement associated with that if is executed, and the rest of the ladder is bypassed. If none of the conditions is true, then the final else statement will be executed.
if (condition)
    statement;
else if (condition)
    statement;
.
.
else
    statement;


Example:

<script type = "text/javaScript"> 
// JavaScript program to illustrate nested-if statement 

var i = 20; 

if (i == 10) 
document.wrte("i is 10"); 
else if (i == 15) 
document.wrte("i is 15"); 
else if (i == 20) 
document.wrte("i is 20"); 
else
document.wrte("i is not present"); 
< /script> 

Output:

i is 20