implement jwt auth

server/src/core/auth/services/token.service.ts

@@ -0,0 +1,33 @@
+import { Injectable } from '@nestjs/common';
+import { JwtService } from '@nestjs/jwt';
+import { EnvironmentService } from '../../../environment/environment.service';
+import { User } from '../../user/entities/user.entity';
+import { FastifyRequest } from 'fastify';
+
+@Injectable()
+export class TokenService {
+  constructor(
+    private jwtService: JwtService,
+    private environmentService: EnvironmentService,
+  ) {}
+  async generateJwt(user: User): Promise<string> {
+    const payload = {
+      sub: user.id,
+      email: user.email,
+    };
+    return await this.jwtService.signAsync(payload);
+  }
+
+  async verifyJwt(token: string) {
+    return await this.jwtService.verifyAsync(token, {
+      secret: this.environmentService.getJwtSecret(),
+    });
+  }
+
+  async extractTokenFromHeader(
+    request: FastifyRequest,
+  ): Promise<string | undefined> {
+    const [type, token] = request.headers.authorization?.split(' ') ?? [];
+    return type === 'Bearer' ? token : undefined;
+  }
+}