Sonarr > Huginn > Slack

I use a tool called Sonarr to, uhh1, keep track of when new episodes of television shows are released, regardless of what platform they're on (Netflix, Prime, iPlayer, whatever) and notify me so I remember to watch it.

For several years, I've used IFTTT as the intermediary, receiving webhooks from Sonarr and translating them for Slack:

Full image of A series of webhooks sent from Sonarr to IFTTT to Slack.
Alt

A series of webhooks sent from Sonarr to IFTTT to Slack.

This worked for years, but it's time to retire it.

IFTTT's move to kill its Legacy Pro plan2 - which I was on - gave me reason to re-assess this configuration. It turns that the only Pro feature I was using was an IFTTT "filter" to convert the Sonarr webhooks to a Slack-friendly-format.

Given that I'm running an installation of Huginn on my home network anyway, I resolved to re-implement this flow in Huginn and cancel my IFTTT subscription.

Full image of A series of webhooks sent from Sonarr to Huginn to Slack.
Alt

A series of webhooks sent from Sonarr to Huginn to Slack.

Raven-powered automation is the new hotness.

This turned out to be so easy I wonder why I never did it before.

First, I created a Webhook Agent and gave the URL to Sonarr.

Then I connected that to a Slack Agent with the following configuration:

{
  "webhook_url": "https://hooks.slack.com/services/...",
  "channel": "#sonarr",
  "username": "Sonarr",
  "message": "*<https://thetvdb.com/?tab=series&id={{series.tvdbId}}|{{series.title}}>*\nNew episodes:{% for episode in episodes %}\nโ€ข S{{episode.seasonNumber}}E{{episode.episodeNumber}} {{episode.title}}{% endfor %}",
  "icon": ":tv:"
}
I've omitted my Slack webhook URL so you don't spam me. I tried for far too long to get the pluralize filter to work so it'd say "episode" or "episodes" as appropriate before realising I didn't care enough and gave up.

Then all I needed to do was re-emit some of the previous webhooks to test it:

Full image of Slack chat window showing notifications: (1) a new episode of Resident Alien, announced by IFTTT, (b) the same episode, announced by "Sonarr", (c) two episodes of Marvel's Spidey and His Amazing Friends, also announced by "Sonarr".
Alt

Slack chat window showing notifications: (1) a new episode of Resident Alien, announced by IFTTT, (b) the same episode, announced by "Sonarr", (c) two episodes of Marvel's Spidey and His Amazing Friends, also announced by "Sonarr".

As a bonus, I swapped out the IFTTT logo for Slackmoji's :tv: icon and added the "Sonarr" username, as shown in my code sample.

Now I'll continue to know when there's new television to watch3!

I love the power and flexibility that Huginn provides to help automate your life. It does many of the things that I used to do with a handful of cron jobs and shell scripts, but all in one convenient place.

Footnotes

1 I've heard there are other uses for the tool. Your mileage may vary. Don't forget to pay for your content, if possible.

2 Like many others, I originally signed up to the plan under the promise that the price would be honoured forever. Turns out "forever" means "three years": who knew?

3 It's especially useful when you're between seasons or a show is on hiatus to be reminded that it's back and I should go and watch it. Hey, there's a thought: I wonder if I can extract the subtitles from shows and run them through a summarising LLM to give me a couple of paragraphs reminding me "what happened last series" if the show's been on a long break?

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