Adding count route

* /count gives number of shorts
* Specs
* Updated api docs

app/controllers/shorts_controller.rb

@@ -45,6 +45,10 @@ def suggest
     render(json: { hostname: hostname, short: slug }, status: 200)
   end
 
+  def count
+    render(json: { count: Short.count }, status: 200)
+  end
+
   private
 
   def load_short

config/routes.rb

@@ -3,6 +3,7 @@
 
   resources(:shorts, path: '/', only: %i[create destroy show]) do
     collection do
+      get('/count', to: 'shorts#count')
       post('/suggestion', to: 'shorts#suggest')
     end
   end

docs/api-spec.yaml

@@ -7,7 +7,7 @@ info:
   license:
     name: MIT
     url: https://github.com/truggeri/rails-url-shortener/blob/main/LICENSE
-  version: 1.1.0
+  version: 1.2.0
 servers:
 - url: https://short.truggeri.com/
 externalDocs:
@@ -146,6 +146,26 @@ paths:
           description: The provided bearer is not authorized to remove this short URL
         404:
           description: Short URL could not be found
+  /count:
+    get:
+      tags:
+        - ops
+      summary: Gives a count of the number of shorts in the system
+      description: Gives the total number of shorts in the system
+      responses:
+        200:
+          description: The count of shorts
+          content:
+            application/json:
+              schema:
+                required:
+                - count
+                type: object
+                properties:
+                  count:
+                    type: number
+                    description: The number of shorts
+                    example: 5
   /suggestion:
     post:
       tags:

public/api-spec.yaml

@@ -7,7 +7,7 @@ info:
   license:
     name: MIT
     url: https://github.com/truggeri/rails-url-shortener/blob/main/LICENSE
-  version: 1.1.0
+  version: 1.2.0
 servers:
 - url: https://short.truggeri.com/
 externalDocs:
@@ -146,6 +146,26 @@ paths:
           description: The provided bearer is not authorized to remove this short URL
         404:
           description: Short URL could not be found
+  /count:
+    get:
+      tags:
+        - ops
+      summary: Gives a count of the number of shorts in the system
+      description: Gives the total number of shorts in the system
+      responses:
+        200:
+          description: The count of shorts
+          content:
+            application/json:
+              schema:
+                required:
+                - count
+                type: object
+                properties:
+                  count:
+                    type: number
+                    description: The number of shorts
+                    example: 5
   /suggestion:
     post:
       tags:

spec/requests/shorts_spec.rb

@@ -208,4 +208,38 @@
       end
     end
   end
+
+  describe '#count' do
+    subject { get('/count') }
+
+    context 'when no shorts' do
+      it do
+        subject
+        expect(response).to      have_http_status(:ok)
+        expect(response.body).to eq({ count: 0 }.to_json)
+      end
+    end
+
+    context 'when one short' do
+      it do
+        Short.create(full_url: 'something1')
+        subject
+        expect(response).to      have_http_status(:ok)
+        expect(response.body).to eq({ count: 1 }.to_json)
+      end
+    end
+
+    context 'when multipe shorts' do
+      let(:count) { Random.rand(2..5) }
+
+      it do
+        (1..count).each do |i|
+          Short.create(full_url: "something#{i}")
+        end
+        subject
+        expect(response).to      have_http_status(:ok)
+        expect(response.body).to eq({ count: count }.to_json)
+      end
+    end
+  end
 end