ResendEmailService

Info

@Service that sends verification code emails via the Resend API with scene-specific subjects and HTML templates.

Overview

Wraps the Resend SDK to deliver verification code emails. Builds scene-specific email subjects and HTML bodies containing the verification code, scene label, and trace ID for debugging.

Key Methods

Method	Description
sendVerificationCode(email, scene, code, traceId)	Send a verification code email via Resend API

Email Subjects by Scene

Scene	Subject
REGISTER	eIsland 注册验证码
LOGIN	eIsland 登录验证码
RESET_PASSWORD	eIsland 重置密码验证码
CHANGE_EMAIL	eIsland 更换邮箱验证码
UNREGISTER	eIsland 注销账号验证码

Email Template

The HTML template includes:

• Scene label (e.g. "注册账号", "登录账号")
• Verification code (5-minute validity)
• Trace ID for debugging

Configuration Properties

Property	Env / YAML Key	Default	Description
API Key	resend.api-key	(empty)	Resend API key (required)
From Address	resend.from	(empty)	Sender email address (required)

Warning

Throws IllegalStateException if resend.api-key or resend.from is missing.

Dependencies

• Resend Java SDK (com.resend.Resend)