Next.js v14 + Nodemailer: Sending attachments without uploading.

Imagine you’re developing a Next.js application where users need to send attachments — be it resumes, reports, or any other documents — via email. Handling file uploads and email sending can be tricky, but don’t worry! In this guide, we’ll walk through the process step by step, ensuring everything is clear and easy to follow.

Project Setup

Before diving into the code, let’s set up our Next.js project and install the necessary package.

• Create a New Next.js Project

Open your terminal and run:

npx create-next-app@latest your-project cd your-project

• Install Nodemailer

Nodemailer will help us send emails from our application:

npm install nodemailer

Step 1: Create the API Route

In Next.js, API routes are a convenient way to handle server-side logic. We’ll create an API route to process and send emails with attachments.

• Create a New API Route

Create a directory named “ api ” inside the “ app ” directory if it doesn't already exist.Then inside it create a new folder naming it after the functionality, in this case “ sendEmail ” Then, create a file named “route.js” in app/api/sendEmail ”:

/your-project 
       ├── app
       │     ├── api 
       │     │    └── sendEmail.js
       │…