I am facing an issue with my express API where I receive a CORS error message after making a request.
Error:
Access to XMLHttpRequest at 'http://localhost:9000/api/courses' from origin
'http://localhost:4222' has been blocked by CORS policy:
No 'Access-Control-Allow-Origin' header is present on the requested resource.
In my API, I have implemented cors and below is the relevant code snippet:
import * as express from 'express';
import {Application} from "express";
import {getAllCourses, getCourseById} from "./get-courses.route";
import {searchLessons} from "./search-lessons.route";
import {loginUser} from "./auth.route";
import {saveCourse} from "./save-course.route";
const bodyParser = require('body-parser');
const app: Application = express();
app.use(bodyParser.json());
var cors = require('cors');
app.use(cors());
app.route('/api/login').post(loginUser);
app.route('/api/courses').get(getAllCourses);
app.route('/api/courses/:id').put(saveCourse);
app.route('/api/courses/:id').get(getCourseById);
app.route('/api/lessons').get(searchLessons);
const httpServer = app.listen(9000, () => {
console.log("HTTP REST API Server running at http://localhost:" + httpServer.address().port);
});
Your assistance in resolving this matter would be highly appreciated. Thank you in advance for your responses.