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Is there a service to monitor text change in website to specific string? Webhook alerts to slack.
I'd love to look changes in: https://www.lounaat.info/lounas/blancco-pitajanmaki/helsinki
Then see if specific string such as "Kievinkana" or "burger" appears in the lunch list. The list gets updated once a week.
if the string appears in one of the boxes that are indicating days, I'd love to get webhook notification for slack channel.
Then I could gather some words that people are looking for, and add multiple urls for different nearby locations and get notifications every monday for work group if something good appears in one of the places around. Theres like 8 good restaurants but we never have time to check whats in the menu and just wander to some random one. This would help planning with salad choices and erm... with the good stuff too :P
Comments
@stefeman https://github.com/dgtlmoon/changedetection.io They offer a 6.99 service if you prefer not to self host, I use it to detect new news on my competitor sites.
Awesome.
I'm using https://visualping.io free plan to monitor an announcements page however you only get email notifications on the free plan. Webhooks require a paid business plan https://help.visualping.io/en/articles/6191684-how-do-i-use-webhooks
The interface is very easy to use, supports monitoring for visual/text/element changes and can perform actions such as clicking buttons etc.
Using this with Pikapods
BetterUptime can do this, see below. You can then configure it to ping a Slack channel with their integration app. My specific example is DOESN'T contain key word but you can set it to contain as well.
This works great
I was using python and bash scripting but this is better 
If you prefer learn and Python, you can use requests + bs4. I made a small script that looks a string change on a website + sends the info to a Discord channel with webhook.
I use the free plan of https://www.wachete.com/ and it's worked fine.
curl + grep in crontab
You can use NodePing to monitor for a string in an HTTP result and get email and/or SMS notifications (which I use) or call a webhook for Slack (which I don't use, because the Slack client is such a pig).