swiss-datashare/backend/src/auth/strategy/jwt.strategy.ts

import { Injectable } from "@nestjs/common";
import { ConfigService } from "@nestjs/config";
import { PassportStrategy } from "@nestjs/passport";
import { User } from "@prisma/client";
import { ExtractJwt, Strategy } from "passport-jwt";
import { PrismaService } from "src/prisma/prisma.service";

@Injectable()
export class JwtStrategy extends PassportStrategy(Strategy) {
  constructor(config: ConfigService, private prisma: PrismaService) {
    super({
      jwtFromRequest: ExtractJwt.fromAuthHeaderAsBearerToken(),
      secretOrKey: config.get("JWT_SECRET"),
    });
  }

  async validate(payload: { sub: string }) {
    const user: User = await this.prisma.user.findUnique({
      where: { id: payload.sub },
    });

    return user;
  }
}