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Note, not all `alexellis/github` references should be changed, there are a number of repos which are not part of the openfaas org, this commit excludes those. Signed-off-by: John McCabe <john@johnmccabe.net>
39 lines
1.3 KiB
Markdown
39 lines
1.3 KiB
Markdown
### Phantomjs function
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[Phantomjs](http://phantomjs.org) 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.
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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.
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**Image name:** `functions/base:phantomjs`
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You can use the existing Docker image that is managed through this project.
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Create the function through the FaaS CLI:
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```
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# curl -sSL https://get.openfaas.com | sudo sh
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# faas-cli -action=deploy -image=functions/base:phantomjs -name=phantomjs \
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-fprocess="phantomjs /dev/stdin"
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200 OK
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URL: http://localhost:8080/function/phantomjs
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```
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**Example usage:**
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```
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$ time curl --data-binary @cnn.js http://localhost:8080/function/phantomjs
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Status: success
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CNN - Breaking News, Latest News and Videos
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real 0m8.729s
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```
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This script visits the front page of CNN and once it is fully loaded - scrapes the title.
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See [cnn.js](https://github.com/openfaas/faas/tree/master/sample-functions/Phantomjs/cnn.js) as an example of a Phantomjs script.
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Another example script [feedly_subscribers.js](https://github.com/openfaas/faas/tree/master/sample-functions/Phantomjs/feedly_subscribers.js) gives the count of subscribers for an RSS Feed registered on Feedly.
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