Resend API reference

Main exports

import { ResendMailer } from '@workermailer/resend';
import { createQueueHandler, enqueueEmail, enqueueEmails } from '@workermailer/resend/queue';

ResendMailer.connect(options)

Creates a mailer instance configured for the Resend API.

ResendMailerOptions

Field	Type	Notes
apiKey	string	Required Resend API key
from	string	Optional default sender
baseUrl	string	Optional override for the Resend API base URL

mailer.send(email)

Sends an email through POST /emails on the configured Resend API base URL.

EmailOptions

Field	Type	Notes
from	string | User	Sender identity
to	string | string[] | User | User[]	Required recipients
reply	string | User	Optional reply-to
cc	string | string[] | User | User[]	Carbon copy recipients
bcc	string | string[] | User | User[]	Blind carbon copy recipients
subject	string	Message subject
text	string	Plain text body
html	string	HTML body
headers	Record<string, string>	Custom email headers
attachments	Attachment[]	Attachments sent through the Resend API

ResendMailer.send(options, email)

Convenience helper for a one-off send without keeping a mailer instance around.

Error behavior

If the API responds with a non-2xx status, the mailer throws an error containing the status code and response body when available.

Queue entry point

The queue module exports:

• createQueueHandler()
• enqueueEmail()
• enqueueEmails()