ExisJS

Resend (Email) Integration

ExisJS provides a zero-config, native integration for Resend to send emails effortlessly.

Just like all our other integrations, ExisJS treats the resend SDK as an optional dependency. You only install it if you need it, keeping your core application blazing fast and extremely lightweight!

Environment Variables

The Resend plugin securely reads your API key directly from your .env file.

Before using the plugin, ensure you have your API key set:

.env
RESEND_API_KEY="re_123456789"

Installation

ExisJS wraps the official resend Node.js SDK.

npm install resend

Usage

Simply import the resend proxy from exisjs/resend. ExisJS will instantly boot the client behind the scenes the first time you attempt to send an email!

Functional Paradigm

src/http/emails/route.ts
import { controller, route } from 'exisjs/router'import { resend } from 'exisjs/resend'
export default controller({  sendWelcomeEmail: route.post('/welcome', {    async handle(req) {      const { email, name } = req.body
      // The resend client magically lazy-loads here!      const { data, error } = await resend.emails.send({        from: 'Acme <onboarding@resend.dev>',        to: [email],        subject: 'Welcome to Acme!',        html: `<strong>Hello ${name}, welcome aboard!</strong>`      })
      if (error) {        return { success: false, error }      }
      return { success: true, data }    }  })})

Class-Based (OOP) Paradigm

src/http/emails/route.ts
import { Controller, Post, Body } from 'exisjs/decorators'import { resend } from 'exisjs/resend'
@Controller('/emails')export default class EmailsController {    @Post('/welcome')  async sendWelcomeEmail(@Body() body: any) {    // The resend client magically lazy-loads here!    const { data, error } = await resend.emails.send({      from: 'Acme <onboarding@resend.dev>',      to: [body.email],      subject: 'Welcome to Acme!',      html: `<strong>Hello ${body.name}, welcome aboard!</strong>`    })
    if (error) {      return { success: false, error }    }
    return { success: true, data }  }}

Customizing Connection Options

If you need to pass custom options to the Resend Client, call configureResend(options) inside your server.ts onStart hook.

src/http/server.ts
import { exis } from 'exisjs'import { configureResend } from 'exisjs/resend'
export default exis({  async onStart() {    // Inject custom fetch options or headers    configureResend({      headers: {        'X-Custom-Header': 'ExisJS'      }    })  }})
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