Webnav

Navigate webpages the easy way.

Installation

Note: you may need to install PhantomJS

$ npm install --save webnav

var webnav = require('webnav');

Methods

All methods return webnav. This allows for method chaining.

open

webnav.open(url, callback);

Opens a webpage from a url in PhantomJS, then executes the callback. The callback is passed a status parameter, which is set to 'success' if the webpage is opened successfully.

output

webnav.output(callback);

Specifies how the program should handle console output. Console output is passed as the first parameter into the callback function. By default, output is set to log messages preceded by '>'.

inject

webnav.inject(filepath);

Injects a local file into the open webpage. Any variables and functions injected from inside a js file can then be accessed.

then

webnav.then(action, time);

Specify an action to take. The action parameter is a function, which is passed a phantom page object as its first argument. The page object is how you interact with the webpage. The time parameter specifies a delay in milliseconds before the next action should be taken.

start

webnav.start(callback);

Starts phantom with the current settings in webnav. The callback parameter is executed once phantom has started. Does not return anything.

exit

webnav.exit();

Stops phantom from running and exits.

Example

var webnav = require('webnav');

webnav
.open('http://my.site.com/path', function (status) {
	console.log('opened site?', status);
})
.output(function (msg) {
	console.log('console says:', msg);
})
.inject('./js/variables.js')
.inject('./js/functions.js')
.then(myFunction, 2500)
.then(exitFunction, 1000)
.start(function () {
	console.log('started');
});

function myFunction(page) {
	page.evaluate(function() {
		// do something
	});
}

function exitFunction() {
	webnav.exit();
}