🎠 Run GoogleChrome/puppeteer as a service.
$ npm install puppeteer-service --saveconst PuppeteerService = require('puppeteer-service');
const { koaApp, server } = PuppeteerService({
cluster: true, // default: false
port: 3000, // default
api: 'run', // default
test: true, // default: false
puppeteer: {
// See https://github.com/GoogleChrome/puppeteer/blob/master/docs/api.md#puppeteerlaunchoptions
headless: true, // default
args: ['--no-sandbox']
}
});😯 If the test option is set true like above, you can visit the test page via http://your.host:3000/test/.
$ npm install puppeteer-service-client --saveUse puppeteer-service-client to communicate with the server. It's runnable at both browser and Node.js.
const Run = require('puppeteer-service-client');
Run('http://your.host:3000/run', {
/* Entry page url */
url: 'https://target.com/',
/* Runner function */
run: async page => {
const title = await page.title();
echo({ url: page.url(), title });
return {
info: b(a, title)
};
},
/* Options (Optional) */
options: {
/* Variables to inject */
/* Identifiers and their corresponding literal values will be injected
as variable declarations into the runner function. */
injection: {
a: 'Welcome to ',
b: function (x, y) {
return x + y;
}
}
},
/* WebSocket data handler (Optional) */
socket: data => {
/**/
}
})
.then(data => {
/**/
}).catch(error => {
/**/
});socket and echo
The socket option specifies a handler for WebSocket data at client side. Correspondingly, the function echo, which is callable inside the "page runner function", is a built-in function whose responsibility is to transfer data to the right socket connection with the client.
As the following does:
const pageRunner = async page => {
const title = await page.title();
return {
info: b(a, title)
};
};
fetch('http://your.host:3000/run', {
method: 'POST',
/*...*/
headers: {
'Content-Type': 'application/json'
},
body: JSON.stringify({
data: `{
url: 'https://www.sogou.com',
run: ${pageRunner},
options: {
injection: {
a: 'Welcome to ',
b: function (x, y) {
return x + y;
}
}
}
}`
})
})
.then(res => {
if (res.ok) return res.json();
throw new Error('Response is not ok');
})
.then(data => {
/**/
}).catch(error => {
/**/
});Some commands:
npm start # start
npm start -- -p 3000 # port
npm start -- -c # cluster
npm run debug # debugging mode
npm test # test
npm test -- -u http://127.0.0.1:3000/run # api url
npm test -- -n 10 # batch numberCopyright © 2018-present, shenfe