refactor(v4.0.0-alpha): beginning of a new era

apps/server/src/mail/mail.module.ts

@@ -0,0 +1,36 @@
+import { Logger, Module } from "@nestjs/common";
+import { ConfigService } from "@nestjs/config";
+import { MailerModule } from "@nestjs-modules/mailer";
+import * as nodemailer from "nodemailer";
+
+import { Config } from "@/server/config/schema";
+
+import { MailService } from "./mail.service";
+
+const emptyTransporter = nodemailer.createTransport({});
+
+@Module({
+  imports: [
+    MailerModule.forRootAsync({
+      inject: [ConfigService],
+      useFactory: (configService: ConfigService<Config>) => {
+        const smtpUrl = configService.get("SMTP_URL");
+
+        if (!smtpUrl) {
+          Logger.warn(
+            "Since `SMTP_URL` is not set, emails would be logged to the console instead. This is not recommended for production environments.",
+            "MailModule",
+          );
+        }
+
+        return {
+          transport: smtpUrl || emptyTransporter,
+          defaults: { from: "Reactive Resume <noreply@rxresu.me>" },
+        };
+      },
+    }),
+  ],
+  providers: [MailService],
+  exports: [MailService],
+})
+export class MailModule {}

apps/server/src/mail/mail.service.ts

@@ -0,0 +1,24 @@
+import { Injectable, Logger } from "@nestjs/common";
+import { ConfigService } from "@nestjs/config";
+import { ISendMailOptions, MailerService } from "@nestjs-modules/mailer";
+
+import { Config } from "@/server/config/schema";
+
+@Injectable()
+export class MailService {
+  constructor(
+    private readonly configService: ConfigService<Config>,
+    private readonly mailerService: MailerService,
+  ) {}
+
+  async sendEmail(options: ISendMailOptions) {
+    const smtpUrl = this.configService.get("SMTP_URL");
+
+    // If `SMTP_URL` is not set, log the email to the console
+    if (!smtpUrl) {
+      return Logger.log(options, "MailService#sendEmail");
+    }
+
+    return this.mailerService.sendMail(options);
+  }
+}