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Provides interoperability with Node.js APIs.

Node.js Interop for Dart #

Dart Node.js Release License Coverage Build

This package provides Node.js interoperability for Dart.

Requirements #

If you plan to play with the sources, you will also need the latest Grinder version.

Installing via Pub #

1. Depend on it #

Add this to your package's pubspec.yaml file:

dependencies:
  nodejs_interop: *

2. Install it #

Install this package and its dependencies from a command prompt:

$ pub get

3. Import it #

Now in your Dart code, you can use:

import 'dart:js';
import 'package:nodejs_interop/nodejs_interop.dart';

Usage #

The globals module #

It provides objects that are available globally:

print(dirname); // "/path/to"
print(filename); // "app.dart.js"
print(module.id); // "/path/to/app.dart.js"

print(process.arch); // "x64"
print(process.platform); // "linux"

The assert module #

This module provides a simple set of assertion tests that can be used to test invariants:

AssertModule _assert = require('assert');

_assert.ok(true); // Returns normally.
_assert.ok(false); // Throws a `JSAssertionError`.

The events module #

This module provides the EventEmitter class:

// Required: the `EventEmitter` class doesn't exist before this call.
loadLibrary('events');

var listener = allowInterop((data) => print('A "eventName" event occurred: ${data['foo']}'));
var emitter = new EventEmitter()..on('eventName', listener);
emitter.emit('eventName', new JsObject.jsify({'foo': 'bar'}));

The os module #

This module provides a number of operating system-related utility methods:

OSModule os = require('os');

print(os.homedir()); // "/home/user"
print(os.tmpdir()); // "/tmp"

The path module #

This module provides utilities for working with file and directory paths:

PathModule path = require('path');

print(path.basename('/foo/bar/baz.txt')); // "baz.txt"
print(path.dirname('/foo/bar/baz.txt')); // "/foo/bar"

Unit tests #

In order to run the tests, you must install the Node.js test dependencies by running the following command:

$ NODE_ENV=development npm install

Then, you must tell the test runtime where are located the newly installed npm packages by setting the NODE_PATH environment variable to the path of the local node_modules folder:

$ export NODE_PATH="$PWD/node_modules"

Finally, you can launch the test runner from the command prompt:

$ pub run test

See also #

License #

Node.js Interop for Dart is distributed under the MIT License.

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Publisher

verified publisherbelin.io

Provides interoperability with Node.js APIs.

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Documentation

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License

unknown (LICENSE)

Dependencies

collection, file, js, path, platform

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