README
Site diff
Pull a web page, select a part based on a selector, and check whether it changed with respect to the previous hash.
To query without a previous hash:
http://site-diff/changed?url=https%3A%2F%2Fmagnet.me%2F&selector=body
To query with a previous hash:
http://site-diff/changed?url=https%3A%2F%2Fmagnet.me%2F&selector=body&hash=e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
Then return a json object so the caller can see whether it should take action.
{
"hashes": {
"previous": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
"new": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
},
"changed": false,
"empty": false,
"found": "",
"prerendered": true,
"selector": "#currentPageInfo",
"url": "https://magnet.me/sdfdsf"
}
Optionally pass in a PRERENDER_URL
env var to ensure that the content is passed through a prerender service.
That way any Javascript can be executed so dynamic pages can be crawled as well.