implemented task 4

requests.http

@@ -12,3 +12,10 @@ GET http://localhost:3000/api/passengers/
 
 ### get one
 GET http://localhost:3000/api/passengers/123456789
+
+
+### get all airports
+GET http://localhost:3000/api/airports/?icaoCodes=true
+
+### get one airports
+GET http://localhost:3000/api/airports/EDDF

src/app.ts

@@ -1,11 +1,14 @@
 import express, {json} from 'express';
 import flightRouter from "./routes/flight.router";
 import passengerRouter from "./routes/passenger.router";
+import airportRouter from "./routes/airport.router";
 
 const app = express();
 app.use(json())
 app.use('/api/flights', flightRouter)
 app.use('/api/passengers', passengerRouter)
+app.use('/api/airports', airportRouter);
+
 
 
 app.listen(3000, () => {

src/routes/airport.router.ts

@@ -0,0 +1,46 @@
+import express, {Request, Response} from "express";
+import {AirportService} from "../services/airport.service";
+import {StatusCodes} from "http-status-codes";
+import {AirportModel} from "../models/airport.model";
+
+const router = express.Router()
+
+router.get('/', async (req : Request<null, null,null, {icaoCodes : boolean | undefined}>, res: Response) : Promise<void> => {
+    const icaoCode = req.query.icaoCodes;
+
+    if(icaoCode === undefined || !icaoCode)
+    {
+        const airports = await AirportService.getAll();
+
+        res.status(StatusCodes.OK).json(airports);
+        return;
+    }
+
+    else {
+        const codes = await AirportService.getIcaoCodes();
+        res.status(StatusCodes.OK).json(codes);
+        return ;
+    }
+});
+
+router.get('/:icaoCode', async (req : Request<{icaoCode : string}>, res: Response) : Promise<void> => {
+    const icaoCode: string = req.params.icaoCode;
+
+    if(icaoCode === undefined || icaoCode.length != 4){
+        res.sendStatus(StatusCodes.BAD_REQUEST);
+        return ;
+    }
+
+    const airport : AirportModel | null = await AirportService.getOne(icaoCode);
+
+    if(airport === null)
+    {
+        res.sendStatus(StatusCodes.NO_CONTENT);
+    }
+
+    res.status(200).json(airport);
+});
+
+
+
+export default router;

src/services/airport.service.ts

@@ -0,0 +1,24 @@
+
+import {ServiceBase} from "./serviceBase";
+import {AirportModel} from "../models/airport.model";
+
+export class AirportService extends ServiceBase {
+      static async getOne(icao : string) : Promise<AirportModel | null>{
+        const sql = `select icao, name, country, runwayLength from Airport where icao = ?1;`
+        const params = {
+            1: icao
+        }
+        return await this.get<AirportModel>(sql, params);
+    }
+
+    static async getAll() : Promise<AirportModel[]>{
+        const sql = `select icao, name, country, runwayLength from Airport;`
+        return await this.all<AirportModel>(sql);
+
+    }
+
+    static async getIcaoCodes() : Promise<string[]>{
+        const sql = `select icao from Airport;`
+        return await this.all<string>(sql);
+    }
+}