Implemented getWebhook()

lib/dnsimple/client/webhooks.rb

@@ -61,6 +61,23 @@ def create_webhook(account_id, attributes = {}, options = {})
       end
       alias :create :create_webhook
 
+      # Gets a webhook from the account.
+      #
+      # @see https://developer.dnsimple.com/v2/webhooks/#get
+      #
+      # @param  [Fixnum] account_id the account ID
+      # @param  [#to_s] webhook_id The webhook ID.
+      # @param  [Hash] options
+      # @return [Dnsimple::Response<Dnsimple::Struct::Webhook>]
+      #
+      # @raise  [Dnsimple::NotFoundError]
+      # @raise  [Dnsimple::RequestError]
+      def webhook(account_id, webhook_id, options = {})
+        response = client.get(Client.versioned("/%s/webhooks/%s" % [account_id, webhook_id]), options)
+
+        Dnsimple::Response.new(response, Struct::Webhook.new(response["data"]))
+      end
+
     end
   end
 end

spec/dnsimple/client/webhooks_spec.rb

@@ -76,4 +76,41 @@
     end
   end
 
+  describe "#webhook" do
+    let(:account_id) { 1010 }
+
+    before do
+      stub_request(:get, %r[/v2/#{account_id}/webhooks/.+$])
+          .to_return(read_http_fixture("getWebhook/success.http"))
+    end
+
+    it "builds the correct request" do
+      subject.webhook(account_id, webhook = 1)
+
+      expect(WebMock).to have_requested(:get, "https://api.dnsimple.test/v2/#{account_id}/webhooks/#{webhook}")
+          .with(headers: { 'Accept' => 'application/json' })
+    end
+
+    it "returns the webhook" do
+      response = subject.webhook(account_id, 0)
+      expect(response).to be_a(Dnsimple::Response)
+
+      result = response.data
+      expect(result).to be_a(Dnsimple::Struct::Webhook)
+      expect(result.id).to  eq(1)
+      expect(result.url).to eq("https://webhook.test")
+    end
+
+    context "when the webhook does not exist" do
+      it "raises NotFoundError" do
+        stub_request(:get, %r[/v2])
+            .to_return(read_http_fixture("notfound-webhook.http"))
+
+        expect {
+          subject.webhook(account_id, 0)
+        }.to raise_error(Dnsimple::NotFoundError)
+      end
+    end
+  end
+
 end

spec/fixtures.http/getWebhook/success.http

@@ -0,0 +1,17 @@
+HTTP/1.1 200 OK
+Server: nginx
+Date: Mon, 15 Feb 2016 17:06:09 GMT
+Content-Type: application/json; charset=utf-8
+Transfer-Encoding: chunked
+Connection: keep-alive
+Status: 200 OK
+X-RateLimit-Limit: 4000
+X-RateLimit-Remaining: 3992
+X-RateLimit-Reset: 1455559348
+ETag: W/"cbb707ff6fc185d71f5a8df3110f1379"
+Cache-Control: max-age=0, private, must-revalidate
+X-Request-Id: 0109ea48-b7f0-4f78-a970-6866653b83eb
+X-Runtime: 0.087618
+Strict-Transport-Security: max-age=31536000
+
+{"data":{"id":1,"url":"https://webhook.test"}}

spec/fixtures.http/notfound-webhook.http

@@ -0,0 +1,12 @@
+HTTP/1.1 404 Not Found
+Server: nginx
+Date: Thu, 03 Mar 2016 11:55:29 GMT
+Content-Type: application/json; charset=utf-8
+Transfer-Encoding: chunked
+Connection: keep-alive
+Status: 404 Not Found
+Cache-Control: no-cache
+X-Request-Id: 4f154fa2-3ce9-4bdd-88a3-42ccc8dbc087
+X-Runtime: 0.012159
+
+{"message":"Webhook `0` not found"}