Hyo•2mo ago

Additional parameters in Email config

I'm using @convex-dev/auth/providers/Email to send verification emails and want to support multiple languages (e.g., 'en', 'ko') based on user settings. However, the current sendVerificationRequest doesn't accept custom parameters like customData to pass locale info, forcing me to hardcode templates (e.g., 'en'). #### Current Code

import { Email } from '@convex-dev/auth/providers/Email';
import { Resend as ResendAPI } from 'resend';
import { alphabet, generateRandomString } from 'oslo/crypto';

type Locale = 'en' | 'ko';
const emailTemplates: Record<Locale, { subject: string; text: (token: string) => string }> = {
  en: { subject: 'Verify your email', text: (token) => `Code: ${token}` },
  ko: { subject: '이메일 인증', text: (token) => `코드: ${token}` },
};

export const ResendOTP = Email({
  id: 'resend-otp',
  apiKey: process.env.AUTH_RESEND_KEY,
  async generateVerificationToken() { return generateRandomString(8, alphabet('0-9')); },
  async sendVerificationRequest({ identifier: email, provider, token }) {
    const template = emailTemplates['en']; // Hardcoded, no locale support
    const resend = new ResendAPI(provider.apiKey);
    await resend.emails.send({ from: 'Auth <onboarding@resend.dev>', to: [email], subject: template.subject, text: template.text(token) });
  },
});

import { Email } from '@convex-dev/auth/providers/Email';
import { Resend as ResendAPI } from 'resend';
import { alphabet, generateRandomString } from 'oslo/crypto';

type Locale = 'en' | 'ko';
const emailTemplates: Record<Locale, { subject: string; text: (token: string) => string }> = {
  en: { subject: 'Verify your email', text: (token) => `Code: ${token}` },
  ko: { subject: '이메일 인증', text: (token) => `코드: ${token}` },
};

export const ResendOTP = Email({
  id: 'resend-otp',
  apiKey: process.env.AUTH_RESEND_KEY,
  async generateVerificationToken() { return generateRandomString(8, alphabet('0-9')); },
  async sendVerificationRequest({ identifier: email, provider, token }) {
    const template = emailTemplates['en']; // Hardcoded, no locale support
    const resend = new ResendAPI(provider.apiKey);
    await resend.emails.send({ from: 'Auth <onboarding@resend.dev>', to: [email], subject: template.subject, text: template.text(token) });
  },
});

#### Requested Feature Add support for passing customData (e.g., { locale: 'ko' }) to sendVerificationRequest so I can dynamically select email templates based on locale. #### Example

const template = emailTemplates[customData?.locale || 'en'];
await resend.emails.send({ ... });

const template = emailTemplates[customData?.locale || 'en'];
await resend.emails.send({ ... });

#### Why? - Enables multi-language email support. - Increases flexibility for custom email logic. #### Current Limitation - sendVerificationRequest only takes { identifier, provider, token }, no way to pass locale.

2 Replies

Convex Bot•2mo ago

Thanks for posting in <#1088161997662724167>. Reminder: If you have a Convex Pro account, use the Convex Dashboard to file support tickets. - Provide context: What are you trying to achieve, what is the end-user interaction, what are you seeing? (full error message, command output, etc.) - Use search.convex.dev to search Docs, Stack, and Discord all at once. - Additionally, you can post your questions in the Convex Community's <#1228095053885476985> channel to receive a response from AI. - Avoid tagging staff unless specifically instructed. Thank you!

erquhart•5w ago

Welcome! Makes sense. I would open this feature request as an issue on the open source repo, that way anyone can take a shot at implementing if they like: https://github.com/get-convex/convex-auth/issues

GitHub

Issues · get-convex/convex-auth

Library for built-in auth. Contribute to get-convex/convex-auth development by creating an account on GitHub.

Additional parameters in Email config

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