discourse/package.json
Martin Brennan 60ad836313
DEV: Chat service object initial implementation (#19814)
This is a combined work of Martin Brennan, Loïc Guitaut, and Joffrey Jaffeux.

---

This commit implements a base service object when working in chat. The documentation is available at https://discourse.github.io/discourse/chat/backend/Chat/Service.html

Generating documentation has been made as part of this commit with a bigger goal in mind of generally making it easier to dive into the chat project.

Working with services generally involves 3 parts:

- The service object itself, which is a series of steps where few of them are specialized (model, transaction, policy)

```ruby
class UpdateAge
  include Chat::Service::Base

  model :user, :fetch_user
  policy :can_see_user
  contract
  step :update_age

  class Contract
    attribute :age, :integer
  end

  def fetch_user(user_id:, **)
    User.find_by(id: user_id)
  end

  def can_see_user(guardian:, **)
    guardian.can_see_user(user)
  end

  def update_age(age:, **)
    user.update!(age: age)
  end
end
```

- The `with_service` controller helper, handling success and failure of the service within a service and making easy to return proper response to it from the controller

```ruby
def update
  with_service(UpdateAge) do
    on_success { render_serialized(result.user, BasicUserSerializer, root: "user") }
  end
end
```

- Rspec matchers and steps inspector, improving the dev experience while creating specs for a service

```ruby
RSpec.describe(UpdateAge) do
  subject(:result) do
    described_class.call(guardian: guardian, user_id: user.id, age: age)
  end

  fab!(:user) { Fabricate(:user) }
  fab!(:current_user) { Fabricate(:admin) }

  let(:guardian) { Guardian.new(current_user) }
  let(:age) { 1 }

   it { expect(user.reload.age).to eq(age) }
end
```

Note in case of unexpected failure in your spec, the output will give all the relevant information:

```
  1) UpdateAge when no channel_id is given is expected to fail to find a model named 'user'
     Failure/Error: it { is_expected.to fail_to_find_a_model(:user) }

       Expected model 'foo' (key: 'result.model.user') was not found in the result object.

       [1/4] [model] 'user' 
       [2/4] [policy] 'can_see_user'
       [3/4] [contract] 'default'
       [4/4] [step] 'update_age'

       /Users/joffreyjaffeux/Code/pr-discourse/plugins/chat/app/services/update_age.rb:32:in `fetch_user': missing keyword: :user_id (ArgumentError)
       	from /Users/joffreyjaffeux/Code/pr-discourse/plugins/chat/app/services/base.rb:202:in `instance_exec'
       	from /Users/joffreyjaffeux/Code/pr-discourse/plugins/chat/app/services/base.rb:202:in `call'
       	from /Users/joffreyjaffeux/Code/pr-discourse/plugins/chat/app/services/base.rb:219:in `call'
       	from /Users/joffreyjaffeux/Code/pr-discourse/plugins/chat/app/services/base.rb:417:in `block in run!'
       	from /Users/joffreyjaffeux/Code/pr-discourse/plugins/chat/app/services/base.rb:417:in `each'
       	from /Users/joffreyjaffeux/Code/pr-discourse/plugins/chat/app/services/base.rb:417:in `run!'
       	from /Users/joffreyjaffeux/Code/pr-discourse/plugins/chat/app/services/base.rb:411:in `run'
       	from <internal:kernel>:90:in `tap'
       	from /Users/joffreyjaffeux/Code/pr-discourse/plugins/chat/app/services/base.rb:302:in `call'
       	from /Users/joffreyjaffeux/Code/pr-discourse/plugins/chat/spec/services/update_age_spec.rb:15:in `block (3 levels) in <main>'
```
2023-02-13 13:09:57 +01:00

48 lines
1.5 KiB
JSON

{
"name": "discourse",
"version": "1.0.0",
"main": "index.js",
"repository": "git@github.com:discourse/discourse.git",
"author": "Discourse",
"license": "GPL-2.0-only",
"dependencies": {
"@discourse/moment-timezone-names-translations": "^1.0.0",
"@fortawesome/fontawesome-free": "5.15.4",
"@highlightjs/cdn-assets": "^11.6.0",
"@json-editor/json-editor": "^2.6.1",
"ace-builds": "1.4.13",
"chart.js": "3.5.1",
"chartjs-plugin-datalabels": "^2.0.0",
"diffhtml": "^1.0.0-beta.20",
"magnific-popup": "1.1.0",
"moment": "2.29.4",
"moment-timezone": "0.5.39",
"pikaday": "1.8.2",
"squoosh": "discourse/squoosh#dc9649d",
"workbox-cacheable-response": "^4.3.1",
"workbox-core": "^4.3.1",
"workbox-expiration": "^4.3.1",
"workbox-routing": "^4.3.1",
"workbox-strategies": "^4.3.1",
"workbox-sw": "^4.3.1"
},
"devDependencies": {
"@mixer/parallel-prettier": "^2.0.3",
"chrome-launcher": "^0.15.1",
"chrome-remote-interface": "^0.31.3",
"eslint-config-discourse": "^3.3.0",
"jsdoc": "^4.0.0",
"lefthook": "^1.2.0",
"puppeteer-core": "^13.7.0",
"tidy-jsdoc": "^1.4.1"
},
"scripts": {
"postinstall": "yarn --cwd app/assets/javascripts/discourse $(node -e 'if(JSON.parse(process.env.npm_config_argv).original.includes(`--frozen-lockfile`)){console.log(`--frozen-lockfile`)}')"
},
"engines": {
"node": "16.* || >= 18",
"npm": "please-use-yarn",
"yarn": ">= 1.21.1"
}
}