1@Service('DroneService')
2export class DroneService extends DbService(db.droneDb) {
3  #myCustomField = "this is my custom field";
4
5  async myCustomMethod(arg: string) {
6    this.logger.info("this is my custom method");
7    return arg;
8  }
9}

1import type * as srv from '../srv';
2
3@Service('DroneService')
4export class DroneService extends DbService(db.droneDb) {
5  @Srv() missionService: srv.MissionService;
6
7  async applyMission(missionId: string) {
8    const mission = await this.missionService.getMission(missionId);
9    await drone.setMission(missionId).save();
10    return drone;
11  }
12}

1import { Logger } from '@core/common';
2import axios, { type AxiosInstance } from 'axios';
3
4export class MyApi {
5  url: string;
6  #api: AxiosInstance;
7  #logger = new Logger('MyApi');
8
9  constructor(url: string) {
10    this.url = url;
11    this.#api = axios.create({ baseURL: url, timeout: 5000 });
12  }
13
14  async getSomething() {
15    try {
16      const { data } = await this.#api.get('/something');
17      return data;
18    } catch (e) {
19      this.#logger.warn("Failed to get from MyApi: " + e.message);
20      return null;
21    }
22  }
23}

1export * from './myApi';

1// import ...
2import { MyApi } from '@<APP_NAME>/nest';
3
4export const registerDroneModule = (url?: string) => {
5  const myApi = new MyApi(url ?? "http://localhost");
6  return databaseModuleOf(
7    {
8      constant: cnst.droneCnst,
9      database: db.droneDb,
10      signal: DroneSignal,
11      service: DroneService,
12      uses: { myApi }, // inject variable here
13    },
14    allSrvs
15  );
16};

1@Service('DroneService')
2export class DroneService extends DbService(db.droneDb) {
3 @Use() myApi: MyApi;
4
5 async getSomething(){
6   const something = await this.myApi.getSomething();
7   return something;
8 }
9}

1@Service('DroneService')
2export class DroneService extends DbService(db.droneDb) {
3 @Websocket() websocket: Websocket<DroneSignal>;
4
5 async publishDroneTmtc() {
6   this.websocket.droneTmtcUpdated(drone.id, drone.tmtc);
7 }
8}

1@Service('DroneService')
2export class DroneService extends DbService(db.droneDb) {
3 @Queue() droneQueue: Queue<DroneSignal>;
4
5 async queueSomething(droneId: string) {
6   const job = await this.droneQueue.queueSomething(droneId);
7   return job;
8 }
9}

1import { Try } from '@core/server';
2
3@Service("DroneService")
4export class DroneService extends DbService(db.droneDb) {
5
6 @Try()
7 async trySomething() {
8   throw new Error("Some Error")
9 }
10
11 async doStuff() {
12   // ...
13   await trySomething(); // error is not thrown
14   // ...
15 }
16}

1import { Transaction } from '@core/server';
2import type * as srv from '../srv';
3
4@Service('DroneService')
5export class DroneService extends DbService(db.droneDb) {
6 @Srv() missionService: srv.MissionService;
7
8 @Transaction()
9 async applyMission(missionId: string) {
10   const mission = await this.missionService.getMission(missionId);
11   await drone.setMission(missionId).save();
12   return drone;
13 }
14}