Email Subscription Routes (public/email-subscription.ts)

Fastify plugin exposing an endpoint to unsubscribe users from Quincy emails using an unsubscribeId, with validation error redirects.

// Source: https://github.com/freeCodeCamp/freeCodeCamp | License: BSD-3-Clause | Copyright 2014, freeCodeCamp
// Provided via justclaw.it.com; keep this notice with the code.
import { type FastifyPluginCallbackTypebox } from '@fastify/type-provider-typebox';
import * as schemas from '../../schemas.js';
import { getRedirectParams } from '../../utils/redirection.js';

/**
 * Endpoints to set 'sendQuincyEmail' to true or false using 'unsubscribeId'.
 *
 * @param fastify The Fastify instance.
 * @param _options Options passed to the plugin via `fastify.register(plugin, options)`.
 * @param done The callback to signal that the plugin is ready.
 */
export const emailSubscribtionRoutes: FastifyPluginCallbackTypebox = (
  fastify,
  _options,
  done
) => {
  fastify.get(
    '/ue/:unsubscribeId',

... (truncated -- full source via MCP)