Set default host and port for ng serve in config file

Question

Angular CLI 6+

In the latest version of Angular, this is set in the angular.json config file. Example:

{
    "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
    "projects": {
        "my-project": {
            "architect": {
                "serve": {
                    "options": {
                        "port": 4444
                    }
                }
            }
        }
    }
}

You can also use ng config to view/edit values:

ng config projects["my-project"].architect["serve"].options {port:4444}

Angular CLI <6

In previous versions, this was set in angular-cli.json underneath the defaults element:

{
  "defaults": {
    "serve": {
      "port": 4444,
      "host": "10.1.2.3"
    }
  }
}

As of right now that feature is not supported, however if this is something that bothers you an alternative would be in your package.json...

"scripts": {
  "start": "ng serve --host foo.bar --port 80"
}

This way you can simply run npm start

Another option if you want to do this across multiple projects is to create an alias, which you can potentially name ngserve which will execute your above command.

You can configure the default HTTP port and the one used by the LiveReload server with two command-line options :

ng serve --host 0.0.0.0 --port 4201 --live-reload-port 49153

https://github.com/angular/angular-cli

This changed in the latest Angular CLI.

The file name changed to angular.json, and the structure also changed.

This is what you should do:

"projects": {
    "project-name": {
        ...
        "architect": {
            "serve": {
                "options": {
                  "host": "foo.bar",
                  "port": 80
                }
            }
        }
        ...
    }
}

Another option is to run ng serve command with the --port option e.g

ng serve --port 5050 (i.e for port 5050)

Alternatively, the command: ng serve --port 0, will auto assign an available port for use.

We have two ways to change default port number in Angular.

First way is by CLI command:

ng serve --port 2400 --open

Second way is by configuration at the location:

ProjectName\node_modules\@angular-devkit\build-angular\src\dev-server\schema.json.

Make changes in schema.json file.

{
 "title": "Dev Server Target",
  "description": "Dev Server target options for Build Facade.",
  "type": "object",
  "properties": {
    "browserTarget": {
      "type": "string",
      "description": "Target to serve."
    },
    "port": {
      "type": "number",
      "description": "Port to listen on.",
      "default": 2400
    },

You can save these in a file, but you have to to put it in .ember-cli (at the moment, at least); see https://github.com/angular/angular-cli/issues/1156#issuecomment-227412924

{
"port": 4201,
"liveReload": true,
"host": "dev.domain.org",
"live-reload-port": 49153
}

edit: you can now set these in angular-cli.json as of commit https://github.com/angular/angular-cli/commit/da255b0808dcbe2f9da62086baec98dacc4b7ec9, which is in build 1.0.0-beta.30