Proxy

Creating a proxy.conf.jsonin Angular’s srcdirectory will allow you to proxy requests. You might have a Node.js server running on Port 3000 and your Angular development server on Port 4200. For forwarding all requests made in the Angular app to “/api/<>” to the actual Node.js server, running on a different port, use the following:

{
	"/api": {
	"target": "http://localhost:3000",
	"secure": false,
	"logLevel": "debug"
	}
}

Import this configuration in your angular.json:

"serve": {
	"builder": "@angular-devkit/build-angular:dev-server",
	"options": {
		"proxyConfig": "src/proxy.conf.json"
	}