Express routes not called with node-fetch - node.js

Question

I have an express server with one route. When I call this route in my browser I am able to get data sent by my server. However when I try to call this route from script with a simple node-fetch I have an response but my route is not called (not data retrieved). I explain :
Here the code of my express server:
App.ts
import express from "express";
import httpServer from "./httpServer";
import HttpRoutes from "./httpRoutes";
class BrokerServer {
public httpServer!: express.Application;
public httpRoutes!: HttpRoutes;
constructor() {
this.initHttpServer();
}
private initHttpServer(): void {
this.httpServer = httpServer;
this.httpRoutes = new HttpRoutes();
this.httpRoutes.routes();
}
}
new BrokerServer();
Server.ts
import express from "express";
import * as bodyParser from "body-parser";
class HttpServer {
public HTTP_PORT: number = 9000;
public server!: express.Application;
constructor() {
this.server = express();
this.server.use(bodyParser.json());
this.server.listen(this.HTTP_PORT, () => {
console.log('Broker HTTP Server listening on port 9000');
});
}
}
export default new HttpServer().server;
And my routes.ts
import httpServer from "./httpServer";
export default class HttpRoutes {
public routes(): void {
httpServer.get("/getNodes", (req, res) => {
console.log("GET");
res.status(200).send(JSON.stringify({ nodes: [] }));
});
}
}
When I launch my server and naviguate on the url http://localhost:9000/getNodes I can see my console.log('GET'). this is not the case when I try with node-fetch.
Here my little script:
const fetch = require('node-fetch');
console.log('launch fetch');
fetch('http://localhost:9000/getNodes')
.then(response => {
console.log('response', response);
return response.json()
})
.then(results => {
console.log('results', results);
})
.catch(error => {
console.log('error', error);
});
With the script I reach the console.log('response', response); but never my results.
Anyone knows where is the problem ?

Answer 1

I found why it didn't work. I used a ramdom port (port 9000) which is already used. Changed the port works...