lastfm2mastodon is a simple tool that posts songs scrobbled to last.fm. It is configured via a file in TOML format. By default this is ~/.lastfm2mastodon but may be specified via the -config command line flag.
The configuration file looks like this:
[lastfm]
key = "last_fm_key"
secret = "last_fm_secret"
user_name = "last_fm_username"
poll_time_seconds = 60
[mastodon]
access_token = "mastodon_access_token"
client_id = "mastodon_client_id"
client_secret = "mastodon_client_secret"
url = "https://mastodon.social/"
An API key for last.fm is required. You can create one here (you only need to specify email and application name): https://www.last.fm/api/account/create
You also need an application key for your Masotodon instance. Log in and go to your preferences. Then go to the Development section and click on New Application. You need to specify an application name and make sure the scopes include write.
You can compile using:
go build github.com/jamesfcarter/lastfm2mastodon/cmd/lastfm2mastodon
Once started the application will run forever logging each song that it tooted as well as any errors.