Koreografeye Mastodon plugin

A koreografeye plugin to send a toot to a Mastondon instance.

Install

npm install koreografeye-mastodon

Change the config.jsonld configuration file and add the plugin definition.

In @context add "https://linkedsoftwaredependencies.org/bundles/npm/koreografeye-mastodon/^0.0.0/components/context.jsonld".

Add the plugin definition:

{
  "@id": "http://example.org/sendToMastodon",
  "@type": "MastodonPlugin",
  "test" : false
}

Usage

The Koreografeye N3 rules should produce a ex:sendToMastodon policy to trigger this plugin. An example N3 rule file is provided below:

@prefix ex:   <http://example.org/> .
@prefix as:   <https://www.w3.org/ns/activitystreams#> .
@prefix pol:  <https://www.example.org/ns/policy#> .
@prefix fno:  <https://w3id.org/function/ontology#> .
@prefix string: <http://www.w3.org/2000/10/swap/string#> .

{
  # pol:mainSubject defines the top level identifier of the notification
  [ pol:mainSubject ?id ] .
  
  ?id a as:Update .
  ( "koreografeye-mastodon demo : received an update for artifact " ?id) string:concatenation ?toot .
}
=>
{
  ex:MyDemoPolicy pol:policy [
      a fno:Execution ;
      fno:executes ex:sendToMastodon ;
      ex:baseurl "https://openbiblio.social" ;
      ex:toot ?toot 
  ] .
}.

The plugin requires two parameters:

• ex:baseurl the baseurl of the Mastodon instance
• ex:toot the toot message to send to the instance

To execute the plugin a MASTODON_ACCESS_TOKEN environmental variable needs to be available. The content of the access token can be found in your personal Mastodon Preferences > Development > New Application.

Development

Install dependencies

yarn

Build

yarn build

Demo

In your Mastodon web environment find your Preferences/Development settings and create a new application. What we need is the access token for this new application.

Set the access token in your environment

export MASTODON_ACCESS_TOKEN=<...access token...>

Change in config.jsonld the test parameter to false:

{
  "@id": "http://example.org/sendToMastodon",
  "@type": "MastodonPlugin",
  "test" : false
}

Run an orchestrator run on in/demo.ttl using the rules/demo.n3 N3 policy rules:

yarn orch

This should create a new out/demo.ttl file with the required N3 policies included.

Run the policy executor

yarn pol

The policy executor should have send a toot to your account (see rules/demo.n3 how this toot was created).