lastfm-scrobble-purger - Delete scrobbles en-mass (ununscrobbler)

I created this as a way to bulk remove music that is scrobbled by Spotify from Sonos alarms. It seems impossible to selectively Scrobble this stuff, so I need to delete it afterwards. There were over 20,000 scrobbles I needed to remove.

Since last.fm does not have an unscrobble api endpoint we have to simulate a browser session to do this. With this method we can use nearly unlimited batch sizes, I have tested this with 35,000 tracks, limited only by the list you can store in a JSON file.

Useage

• Copy config.yml.example to config.yml
• Generate an API key and enter this and username into config.yml
• Run npm run login to log in, this session should last months.
• Update settings in config.yml, especially the artists to crawl.
• Run node run crawl, this will crawl the specified pages and save all scrobbles to delete.
• Review the db.json file to check what will be removed.
• Run node run unscrobble to remove the scrobbles, this can be aborted or restarted anytime.

AWS

The tool can also be readily deployed to AWS. If anyone wants detailed instructions please open an issue.

I run the crawler every hour on the first page of 200, which places the tracks in an SQS queue (url must be set in the environment variable sqs_url).

You have two options for the unscrobbler, scheduling it every X seconds, so it will take up to 10 items from the queue, or using an S@S trigger to run the unscrobble trigger. The latter is more complex to set up and manage but less costly, recommended for AWS experts.

Handler for crawler: lambda.crawl Handler for unscrobbler: lambda.unscrobble Handler for SQS trigger: lambda.unscrobbleTrigger

You will need to run npm run login to generate a session.yml to include in your deployment package for the lambda unscrobbler.

A windows build tool is included for deyloying the lambda, it requires the AWS CLI to be avaliable and configured and can be run in PowerShell as so... .\build\deploy.ps1 {LAMBDA_FUNCTION_NAME}