Nestjs example jwt provider

nestjs_jwt_provider.ts

import { Injectable } from "@nestjs/common";
import { ConfigService } from "@nestjs/config";
import jwt from "jsonwebtoken";

@Injectable()
export class JwtProvider {
  constructor(private configService: ConfigService) {}

  sign(payload: string) {
    return jwt.sign(payload, this.configService.get<string>("JWT_SECRET"));
  }

  verify(token: string) {
    return jwt.verify(token, this.configService.get<string>("JWT_SECRET"));
  }
}