ts-node-server [WIP]

ts-node-server is node framework for developing RESTful web services in Typescript.

It pulls together some of the best node libraries :

• Fastify : Fast and low overhead web framework, for Node.js

• Pino : Super fast, all natural JSON logger for Node.js

• Inversify : A powerful and lightweight inversion of control container for JavaScript & Node.js apps powered by TypeScript.

• Swagger UI : A collection of HTML, Javascript, and CSS assets that dynamically generate beautiful documentation from a Swagger-compliant API.

• MongoDB driver : Mongo DB Native NodeJS Driver

Features

Route decorators

ts-node-server use decorators to build fastify routes.

@controller('/v1/users')
export class UserController {

    @httpGet(':name')
    public async get(@pathParam('name')name: string) {
    }

    @httpPost()
    public async create(@queryParam('clone')clone: boolean) {
    }

Type validation

ts-node-server use tipify to validate, serialize and deserialize. It ensures that no property can be accidentally exposed.

@jsonObject()
export class StellarSystem {

    @jsonProperty('_id', ObjectIdConverter)
    private _id?: string;

    @jsonProperty('name')
    private _name?: string;

    @jsonProperty('planets', [Planet])
    private _planets?: Planet[];
} 

Swagger generator

ts-node-server use route decorators and tipify decorators to build a swagger configuration.

Metrics

ts-node-server imports fastify-metrics and exposes all your app metrics at /metrics.

Healthcheck

ts-node-server provides an healthcheck (/healthcheck). You can add more checks by extending Healthcheck class :

@injectable()
export class MongoHealthcheck implements Healthcheck {

    constructor() {
    }

    public getName(): string {
        return 'mongodb';
    }

    public check(): Promise<HealthcheckResult> {
        return {
            true,
            'content'
        };
    }
}

Authentication

Basic authentication

const server = new Server({
    container: container,
    auth: {
        basic: {
            'demo': {
                password: 'password',
                roles: ['admin']
            }
        }
    }
});

JWT authentication

const server = new Server({
    container: container,
    auth: {
        jwt: {
            authorizationUrl: 'http://localhost:9000/auth/realms/master/protocol/openid-connect/auth?nonce=',
            certificate: '.......CONTENT.......',
            application: 'test'
        }
    }
});

Protect a route

Protect a route using auth options:

@httpGet({ url: '/:name', auth: ['jwt', 'basic'] })
public async get(@pathParam('name')name: string) {
    ...
}

Allow only a list of roles to access to a route:

@httpGet({ url: '/:name', auth: { jwt: { role: ['admin'] } })
public async get(@pathParam('name')name: string) {
    ...
}

Get connected user

@httpGet({ url: '/:name', auth: 'jwt')
public async get(@pathParam('name')name: string, @auth()user: Principal {
    const logger = getLogger('get', this);
    logger.info('my name is', user.firstname, user.lastname, 'and my login is', user.login);
    ...
}

Generic client

ts-node-service provides GenericClient which is wrapper around request. GenericClient features:

• Serialization / Deserialization with tipify
• Error management and expected status
• Authorization header format form a token or principal
• Add request-id header to the request

export class UserClient extends GenericClient {

    public getUser(name: string) : Promise<User> {
        const options : RequestOptions<User> = {
            expectedStatus: 200,
            principal: principal,
            deserializeType: User
        };
        return this.get<User>('http://localhost/api/users/' + name, options);
    }
}

Logging

Get request logger

With fastify a logger is created for every request, it allows to add a request id to every log. To access to this logger:

const logger = getLogger();
logger.info('hello');

Usage

See ts-node-server-starter for an example.