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Created April 22, 2016 09:33
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Get Growl Notifications following a UK Gov petition
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README.md

For those of us in the UK, there are occasionally some interesting petitions that are started on the UK Government petitions website: https://petition.parliament.uk/

If you want to keep an eye on it without going to the page and clicking refresh once a day, you can easily set up a Node-Red flow to follow the number of signatures on the petition.

In this flow, I'm using the growl node to get notifications on my Ubuntu desktop, but you could quite easily substitute it for a PushBullet / Pushover / MQTT node as well!

Raw
flow.json
[{"id":"7f1d4170.ba2e4","type":"inject","z":"17e6be9f.7c0251","name":"Trigger Check","topic":"","payload":"true","payloadType":"bool","repeat":"120","crontab":"","once":false,"x":168.5,"y":60,"wires":[["12bca2b4.3f6e8d"]]},{"id":"12bca2b4.3f6e8d","type":"http request","z":"17e6be9f.7c0251","name":"Get Petition JSON","method":"GET","ret":"txt","url":"https://petition.parliament.uk/petitions/126512.json","x":365.5,"y":60,"wires":[["e5d8f88d.05fef8"]]},{"id":"e5d8f88d.05fef8","type":"json","z":"17e6be9f.7c0251","name":"","x":530,"y":60,"wires":[["bb109835.b29338"]]},{"id":"d9465227.8cfcd","type":"notify","z":"17e6be9f.7c0251","title":"Petition Signatures","name":"Petition Signatures","x":907.5,"y":60,"wires":[]},{"id":"bb109835.b29338","type":"function","z":"17e6be9f.7c0251","name":"Create Message","func":"var count = msg.payload.data.attributes[\"signature_count\"];\nmsg.payload = \"There have been \" + count + \" signatures so far!\";\n\nreturn msg;","outputs":1,"noerr":0,"x":700,"y":60,"wires":[["d9465227.8cfcd"]]}]
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https://petition.parliament.uk/petitions.json gets the first page of the list of petitions. Add the query params: page=n to get specific pages. The JSON contains links to the next and last page & links to each individual petition.

You can also use the query param state=xxxx so: https://petition.parliament.uk/petitions.json?state=open gives a list of open petitions. Cant see a way to change the sort order which appears to be number of votes descending.

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