Fixed support of multiple sites

The new version of the hack is somehow different. Though, it attempts
to do the same trick altering the underlying connection, it does a
reconnect instead of just patching the URL. As a result, this allows
different resources to work with distinct `site`s at the same time.

See [related upstream issue](
  JsonApiClient/json_api_client#215
) for details.

Author: Alexander-Senko

lib/cirro_io/client/base.rb

@@ -4,10 +4,16 @@ class Base < JsonApiClient::Resource
       self.route_format = :dasherized_route
       self.json_key_format = :dasherized_key
 
-      # https://github.com/JsonApiClient/json_api_client/issues/215
+      # HACK: https://github.com/JsonApiClient/json_api_client/issues/215
+      # Used for initialization as well
       def self.site=(url)
-        super(url)
-        connection.faraday.url_prefix = url
+        super.tap do
+          connection true do |connection|
+            connection.use JwtAuthentication
+            connection.use Faraday::Response::Logger
+            # connection.use ResponseDebuggingMiddleware # for debugging or while adding new specs
+          end
+        end
       end
 
       def self.custom_post(endpoint, payload)
@@ -25,9 +31,3 @@ def self.custom_connection
     end
   end
 end
-
-CirroIO::Client::Base.connection do |connection|
-  connection.use CirroIO::Client::JwtAuthentication
-  connection.use Faraday::Response::Logger
-  # connection.use CirroIO::Client::ResponseDebuggingMiddleware # This middleware can be injected during debugging or while adding new specs
-end

spec/cirro_io/client/base_spec.rb

@@ -1,30 +1,37 @@
 RSpec.describe CirroIO::Client::Base do
-  describe 'jwt_authentication' do
-    before do
-      configure_api_client
-    end
+  let :request_headers do
+    {
+      'Accept' => 'application/vnd.api+json',
+      'Accept-Encoding' => 'gzip,deflate',
+      'Content-Type' => 'application/vnd.api+json',
+      'User-Agent' => 'Faraday v1.1.0',
+      'Authorization' => 'Bearer jwt-token',
+    }
+  end
 
-    it 'sends correct token' do
-      allow(JWT).to receive(:encode).and_return('jwt-token')
+  let :response_headers do
+    {
+      'Content-Type' => 'application/json',
+    }
+  end
 
+  before do
+    configure_api_client
+    allow(JWT).to receive(:encode).and_return('jwt-token')
+  end
+
+  describe 'jwt_authentication' do
+    it 'sends correct token' do
       stub_request(:get, "#{test_site}/v1/app-workers/1")
-        .with(headers: {
-                'Accept' => 'application/vnd.api+json',
-                'Accept-Encoding' => 'gzip,deflate',
-                'Content-Type' => 'application/vnd.api+json',
-                'User-Agent' => 'Faraday v1.1.0',
-                'Authorization' => 'Bearer jwt-token',
-              })
-        .to_return(body: File.read('./spec/fixtures/app_worker.json'), headers: { 'Content-Type' => 'application/json' })
+        .with(headers: request_headers)
+        .to_return(body: File.read('./spec/fixtures/app_worker.json'), headers: response_headers)
 
       app_worker = CirroIO::Client::AppWorker.find(1).first
 
       expect(app_worker.id).to eq('1')
     end
 
     it 'sends token correctly for custom requests as well' do
-      allow(JWT).to receive(:encode).and_return('jwt-token')
-
       stub_request(:post, "#{test_site}/v1/bulk/custom-endpoint")
         .with(headers: {
                 'Accept' => '*/*',
@@ -38,4 +45,27 @@
       described_class.custom_post('bulk/custom-endpoint', { a: :b })
     end
   end
+
+  describe 'configuration' do
+    let(:other_site)    { 'https://api.other.cirro.io' }
+    let(:other_version) { 'vXXX' }
+
+    before do
+      CirroIO::Client::AppWorker.site = "#{other_site}/#{other_version}"
+    end
+
+    it 'supports multiple backends' do
+      stub_request(:get, "#{other_site}/#{other_version}/app-workers/1")
+        .with(headers: request_headers)
+        .to_return(body: File.read('spec/fixtures/app_worker.json'), headers: response_headers)
+
+      expect(CirroIO::Client::AppWorker.find(1).first.id).to eq('1')
+
+      stub_request(:get, "#{test_site}/v1/app-users/3")
+        .with(headers: request_headers)
+        .to_return(body: File.read('spec/fixtures/app_user.json'), headers: response_headers)
+
+      expect(CirroIO::Client::AppUser.find(3).first.id).to eq('3')
+    end
+  end
 end