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

apps/server/src/auth/strategy/local.strategy.ts

@@ -0,0 +1,22 @@
+import { BadRequestException, Injectable } from "@nestjs/common";
+import { PassportStrategy } from "@nestjs/passport";
+import { IStrategyOptions, Strategy } from "passport-local";
+
+import { ErrorMessage } from "@/server/constants/error-message";
+
+import { AuthService } from "../auth.service";
+
+@Injectable()
+export class LocalStrategy extends PassportStrategy(Strategy, "local") {
+  constructor(private readonly authService: AuthService) {
+    super({ usernameField: "identifier" } as IStrategyOptions);
+  }
+
+  async validate(identifier: string, password: string) {
+    try {
+      return this.authService.authenticate({ identifier, password });
+    } catch (error) {
+      throw new BadRequestException(ErrorMessage.InvalidCredentials);
+    }
+  }
+}