feat: get link by id endpoint

README.md

@@ -92,6 +92,7 @@ dokku run bit cli --create-user=Admin
 | `/api/ping`      | GET         | Ping the API to check if it's running | -                                   |
 | `/:slug`         | GET         | Retrieve a link by its slug           | -                                   |
 | `/api/links`     | GET         | Retrieve all links                    | -                                   |
+| `/api/links/:id` | GET         | Retrieve a link by its ID             | -                                   |
 | `/api/links`     | POST        | Create a new link                     | `{"url": "https://example.com"}`    |
 | `/api/links/:id` | PUT         | Update an existing link by its ID     | `{"url": "https://newexample.com"}` |
 | `/api/links/:id` | DELETE      | Delete a link by its ID               | -                                   |

app/controllers/link.cr

@@ -102,6 +102,26 @@ module App::Controllers::Link
     end
   end
 
+  class Get < App::Lib::BaseController
+    include App::Models
+    include App::Lib
+
+    def call(env)
+      user = env.get("user").as(User)
+      link_id = env.params.url["id"]
+
+      query = Database::Query.where(id: link_id.as(String), user_id: user.id.as(String)).limit(1)
+      links = Database.all(Link, query, preload: [:clicks])
+
+      if links.empty?
+        raise App::NotFoundException.new(env)
+      end
+
+      response = {"data" => App::Serializers::Link.new(links.first)}
+      response.to_json
+    end
+  end
+
   class Update < App::Lib::BaseController
     include App::Models
     include App::Lib

app/routes.cr

@@ -23,6 +23,10 @@ module App
     Controllers::Link::All.new.call(env)
   end
 
+  get "/api/links/:id" do |env|
+    Controllers::Link::Get.new.call(env)
+  end
+
   post "/api/links" do |env|
     Controllers::Link::Create.new.call(env)
   end