@nx/angular:dev-server

The dev-server executor is very similar to the standard dev server builder provided by the Angular Devkit. It is usually used in tandem with @nx/angular:webpack-browser when your Angular application uses a custom webpack configuration.

Options can be configured in project.json when defining the executor, or when invoking it. Read more about how to configure targets and executors here: https://nx.dev/reference/project-configuration#targets.

Seving an application with a custom webpack configuration

This executor should be used along with @nx/angular:webpack-browser to serve an application using a custom webpack configuration.

Your project.json file should contain a build and serve target that matches the following:

"build": {
    "executor": "@nx/angular:webpack-browser",
    "options": {
        ...
        "customWebpackConfig": {
          "path": "apps/appName/webpack.config.js"
        }
    }
},
"serve": {
    "executor": "@nx/angular:dev-server",
    "configurations": {
        "production": {
            "buildTarget": "appName:build:production"
        },
        "development": {
            "buildTarget": "appName:build:development"
        }
    },
    "defaultConfiguration": "development",
}
Nx 15 and lower use @nrwl/ instead of @nx/

Options playground

Try out this interactive editor of the configuration object. Values are validated as you type and hovering over labels will give you more information.

Examples

These buttons show the config object for specific common tasks.

Options

Mixins

This type has all of the properties below, but must also match this type:

anyOf [required: buildTarget, required: browserTarget]

buildLibsFromSource

boolean

Read buildable libraries from source instead of building them separately. If not set, it will take the value specified in the browserTarget options, or it will default to true if it's also not set in the browserTarget options.

allowedHosts

Array<string>

Default: []

List of hosts that are allowed to access the dev server.

buildTarget

string

Pattern: ^[^:\\s]+:[^:\\s]+(:[^\\s]+)?$

A build builder target to serve in the format of project:target[:configuration].

disableHostCheck

boolean

Default: false

Don't verify connected clients are part of allowed hosts.

esbuildMiddleware

Array<string>

A list of HTTP request middleware functions. Note: this is only supported in Angular versions >= 17.0.0.

host

string

Default: localhost

Host to listen on.

headers

Custom HTTP headers to be added to all responses.

hmr

boolean

Default: false

Enable hot module replacement.

liveReload

boolean

Default: true

Whether to reload the page on change, using live-reload.

open

boolean

Default: false

Opens the url in default browser.

port

number

Default: 4200

Port to listen on.

proxyConfig

string

Proxy configuration file. For more information, see https://angular.io/guide/build#proxying-to-a-backend-server.

publicHost

string

The URL that the browser client (or live-reload client, if enabled) should use to connect to the development server. Use for a complex dev server setup, such as one with reverse proxies.

poll

number

Enable and define the file watching poll time period in milliseconds.

ssl

boolean

Default: false

Serve using HTTPS.

sslKey

string

SSL key to use for serving HTTPS.

sslCert

string

SSL certificate to use for serving HTTPS.

servePath

string

The pathname where the app will be served.

verbose

boolean

Adds more details to output logging.

watch

boolean

Default: true

Rebuild on change.

browserTarget

Deprecated

string

Pattern: ^[^:\\s]+:[^:\\s]+(:[^\\s]+)?$

A browser builder target to serve in the format of project:target[:configuration]. Ignored if buildTarget is set.

Use 'buildTarget' instead. It will be removed in Nx v19.