I can't seem to get nightmare.js to work on an Ubuntu Linux 14.04 server [via DigitalOcean].
I've installed PhantomJS (1.9.8) and Node (4.2.4), and they are working well as far as I can tell.
For example, when I run this:
phantomjs loadspeed.js http://www.yahoo.com
with loadspeed.js containing this:
"use strict";
var page = require('webpage').create(),
system = require('system'),
t, address;
if (system.args.length === 1) {
console.log('Usage: loadspeed.js <some URL>');
phantom.exit(1);
} else {
t = Date.now();
address = system.args[1];
page.open(address, function (status) {
if (status !== 'success') {
console.log('FAIL to load the address');
} else {
t = Date.now() - t;
console.log('Page title is ' + page.evaluate(function () {
return document.title;
}));
console.log('Loading time ' + t + ' msec');
}
phantom.exit();
});
}
I get the following output:
Page title is Yahoo
Loading time 700 msec
However, when I try running a simple nightmare:
node --harmony hello_nightmare.js
with hello_nightmare.js containing this:
var Nightmare = require('nightmare');
var google = new Nightmare()
.goto('http://google.com')
.wait()
.run(function(err, nightmare) {
if (err) return console.log(err);
console.log('Done!');
});
I get no output whatsoever; it feels like I just pressed 'Enter' on the command line.
I also tried the example on the nightmare github site:
npm install nightmare vo
node --harmony hello_nightmare_main.js
with hello_nightmare_main.js containing this:
var Nightmare = require('nightmare');
var vo = require('vo');
vo(function* () {
var nightmare = Nightmare({ show: true });
var link = yield nightmare
.goto('http://yahoo.com')
.type('input[title="Search"]', 'github nightmare')
.click('.searchsubmit')
.wait('.ac-21th')
.evaluate(function () {
return document.getElementsByClassName('ac-21th')[0].href;
});
yield nightmare.end();
return link;
})(function (err, result) {
if (err) return console.log(err);
console.log(result);
});
And it still doesn't work.
How do I fix this nightmare?
Your issue is most likely described by https://github.com/segmentio/nightmare/issues/224
Nightmare uses Electron which requires an X display; since your server doesn't have a display, you can use Xvfb to provide a virtual one. Install xvfb, and run
xvfb-run node --harmony hello_nightmare.js
I'm just posting this for posterity.
Below is the bash script to install nightmarejs with node (4.2.4) on a clean Ubuntu Linux machine. I've tested this on a DigitalOcean droplet running 14.04.
apt-get -y update
apt-get -y upgrade
apt-get -y --force-yes install make unzip g++ libssl-dev git xvfb x11-xkb-utils xfonts-100dpi xfonts-75dpi xfonts-scalable xfonts-cyrillic x11-apps clang libdbus-1-dev libgtk2.0-dev libnotify-dev libgnome-keyring-dev libgconf2-dev libasound2-dev libcap-dev libcups2-dev libxtst-dev libxss1 libnss3-dev gcc-multilib g++-multilib
mkdir src
cd src
wget https://nodejs.org/dist/v4.2.4/node-v4.2.4.tar.gz
tar xzf node-v4.2.4.tar.gz
cd node-v4.2.4
./configure
make -j2
make install
cd ..
mkdir nightmarejs
cd nightmarejs
npm -f init
npm install --save nightmare vo
Then you simply create the.js file (eg hello_nightmare.js) (in the same directory where nightmarejs is installed) and then run it using the command below (as already mentioned in @yoz's answer):
xvfb-run node --harmony hello_nightmare.js
I hope this helps.
Since electron requires X display you need to install all the following packages
sudo apt-get install -y xvfb x11-xkb-utils xfonts-100dpi xfonts-75dpi xfonts-scalable xfonts-cyrillic x11-apps clang libdbus-1-dev libgtk2.0-dev libnotify-dev libgnome-keyring-dev libgconf2-dev libasound2-dev libcap-dev libcups2-dev libxtst-dev libxss1 libnss3-dev gcc-multilib g++-multilib
Tested in ubuntu server in aws ec2
and it worked
then run your script:
xvfb-run node --harmony script.js
Nightmare.js uses the Electron browser and requires an X server. Install xvfb and its dependencies so that you can run graphical applications without display hardware:
sudo apt-get install -y xvfb \
x11-xkb-utils \
xfonts-100dpi \
xfonts-75dpi \
xfonts-scalable \
xfonts-cyrillic \
x11-apps \
clang libdbus-1-dev \
libgtk2.0-dev libnotify-dev \
libgconf2-dev \
libasound2-dev libcap-dev \
libcups2-dev libxtst-dev \
libxss1 libnss3-dev \
gcc-multilib g++-multilib
Create nightmare.js
file and add the following:
const Nightmare = require("nightmare");
const outputFile = "test.png";
const nightmare = Nightmare({ show: true })
nightmare
.goto('https://duckduckgo.com')
.type('#search_form_input_homepage', 'github nightmare')
.click('#search_button_homepage')
.wait('#r1-0 a.result__a')
.evaluate(() => document.querySelector('#r1-0 a.result__a').href)
.end()
.then(res => {
console.log(res)
})
.catch(error => {
console.error('Search failed:', error)
})
run the script:
$ xvfb-run node --harmony nightmare.js
// output: https://github.com/segmentio/nightmare
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.