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This updates watchdog version to latest 0.8.0 in the functions samples and documentation Signed-off-by: Ivana Yovcheva (VMware) <iyovcheva@vmware.com>
Phantomjs function
Phantomjs is a headless web-browser used for scraping and automation testing. This function will scrape a web-page with the JavaScript sent in through the function.
Once a function has been deployed to FaaS using the UI or one of the other methods you can invoke it with a JavaScript Phantomjs file.
Image name: functions/base:phantomjs
You can use the existing Docker image that is managed through this project.
Create the function through the FaaS CLI:
# curl -sSL https://get.openfaas.com | sudo sh
# faas-cli -action=deploy -image=functions/base:phantomjs -name=phantomjs \
-fprocess="phantomjs /dev/stdin"
200 OK
URL: http://localhost:8080/function/phantomjs
Example usage:
$ time curl --data-binary @cnn.js http://localhost:8080/function/phantomjs
Status: success
CNN - Breaking News, Latest News and Videos
real 0m8.729s
This script visits the front page of CNN and once it is fully loaded - scrapes the title.
See cnn.js as an example of a Phantomjs script.
Another example script feedly_subscribers.js gives the count of subscribers for an RSS Feed registered on Feedly.