NestJS-OIDC is easy way to turn our server as oidc provider with minimum configuratiohn

Installation

This package is using redis as adapter to store authentication session and relevant stuffs, so you need to have install redis first

Register module

This is setup to register essential configuration for OIDC provider such as (client, ttls, cookies,...). You can get more at OIDC Provider

import { OidcModule as NestOidc, OIDC_ACCOUNT_SERVICE } from '@hodfords/nestjs-oidc';

@Module({
    imports: [
        NestOidc.forRootAsync({
            configuration: {
                useFactory: async function () {
                    return {
                        issuer: `${env.BACKEND_URL}/oidc`,
                        claims: {
                            email: ['email', 'email_verified'],
                            profile: ['name'],
                            groups: ['groups']
                        },
                        ttl: {
                            AccessToken: 5 * 60, // 5 minutes
                            AuthorizationCode: 60 * 10, // 10 minutes
                            IdToken: 60 * 60, // 1 hour
                            RefreshToken: 60 * 60 * 24 * 1, // 1 day
                            Interaction: 60 * 60, // 1 hour
                            Session: 60 * 60 * 24 * 14, // 14 days
                            Grant: 5 * 60 // 5 minutes
                        },
                        jwks: {
                            keys: [env.OIDC_PROVIDER.JWKS]
                        },
                        conformIdTokenClaims: false,
                        cookies: {
                            keys: ['interaction', 'session', 'state'],
                            long: {
                                signed: true,
                                httpOnly: true,
                                secure: true, // this should be false at local
                                sameSite: 'none',
                                path: '/',
                                domain: 'localhost'
                            },
                            short: {
                                signed: true,
                                httpOnly: true,
                                secure: true, // this should be false at local
                                sameSite: 'none',
                                path: '/',
                                domain: 'localhost'
                            },
                            names: {
                                session: '_session',
                                interaction: '_interaction',
                                resume: '_resume',
                                state: '_state'
                            }
                        }
                    }
                },
                imports: [],
                inject: []
            },
            redisHost: `redis://${env.REDIS_HOST}:${env.REDIS_PORT}/${env.REDIS_DB}`,
            customInteractionUrl: 'http://localhost:3000'
        }),
    ],
    providers: [
        {
            provide: OIDC_ACCOUNT_SERVICE,
            useClass: OidcService
        },
    ],
})

Define OidcService

Basically this service will be responsible for retrieving account information that will be returned by OIDC Provider to 3rd party

import { IAccount } from '@hodfords/nestjs-oidc';
import { AccountClaimsType } from '@hodfords/nestjs-oidc/types/account.type';

@Injectable()
export class OidcService {
    async findAccount(ctx: any, id: string): Promise<IAccount> {
        const account = await this.userService.findById(id);
        return this.getAccountInfo(account);
    }

    private async getAccountInfo(account: UserEntity): Promise<IAccount> {
        return {
            accountId: account.id,
            async claims(): Promise<AccountClaimsType> {
                return snakecaseKeys({
                    sub: account.id,
                    email: account.email,
                    name: account.fullName,
                    emailVerified: true,
                    groups: []
                });
            }
        };
    }
}

That is all you need to do to setup OIDC provider with NestJS-OIDC, you can now start your server and access to http://localhost:3000/oidc/.well-known/openid-configuration to see the configuration of OIDC provider

License

NestJS-OIDC is MIT licensed.