how can i access my env file from a nestjs module using passport js? - jwt

Question

I am working on a small api using nestjs and passeport js
I have been trying to access the content of my env file, from within my auth module...but it's surpinsigly challenging...
import { userService } from 'src/user/services/user.service';
import { AuthService } from './auth.service';
import { PassportModule } from '#nestjs/passport';
import { LocalStrategy } from './local.strategy';
import { JwtModule } from '#nestjs/jwt';
import { JwtStrategy } from './jwt.strategy';
import { ConfigService } from '#nestjs/config';
#Module({
providers: [AuthService, userService, LocalStrategy, JwtStrategy],
imports: [
TypeOrmModule.forFeature([UserEntity, SpotEntity, SpotUserEntity]),
UserModule,
PassportModule,
JwtModule.register({
secret: ConfigService.get('JWT_SECRET'),
signOptions: { expiresIn: '600s' },
}),
],
exports: [AuthService],
})
export class AuthModule {}
Off course this cannot work because i am trying to utilize ConfigService.get() instead of this.configService.get()
I know i would need to instanciate configService in a constructor first, but modules do not have constructors, this is where i'm stuck at.

Answer 1

You can try registerAsync i.e
import { ConfigModule, ConfigService } from '#nestjs/config';
......
imports: [
PassportModule.register({
defaultStrategy: 'jwt',
}),
JwtModule.registerAsync({
imports: [ConfigModule],
useFactory: (config: ConfigService) => {
return {
signOptions: {
expiresIn: config.get<string>('JWT_EXPIRY'),
},
secret: config.get<string>('JWT_SECRET'),
};
},
inject: [ConfigService],
})
]
....