fix(ruby-core-lib): fix returning nil instead of empty request params

apimatic_core.gemspec

@@ -1,6 +1,6 @@
 Gem::Specification.new do |s|
   s.name = 'apimatic_core'
-  s.version = '0.3.0'
+  s.version = '0.3.1'
   s.summary = 'A library that contains apimatic-apimatic-core logic and utilities for consuming REST APIs using Python SDKs generated '\
               'by APIMatic.'
   s.description = 'The APIMatic Core libraries provide a stable runtime that powers all the functionality of SDKs.'\

lib/apimatic-core/request_builder.rb

@@ -271,15 +271,14 @@ def process_body
         _form_params.merge!(@form_params) if _has_form_params
         _form_params.merge!(@multipart_params) if _has_multipart_param
         _form_params.merge!(@additional_form_params) if _has_additional_form_params
-        # TODO: add Array serialization format support while writing the POC
         return ApiHelper.form_encode_parameters(_form_params, @array_serialization_format)
       elsif _has_body_param && _has_body_serializer
         return @body_serializer.call(resolve_body_param)
       elsif _has_body_param && !_has_body_serializer
         return resolve_body_param
       end
 
-      {}
+      nil
     end
 
     # Processes the part of a multipart request and assign appropriate part value and its content-type.

test/test-apimatic-core/request_builder_test.rb

@@ -115,6 +115,29 @@ def test_body_param
     assert(actual.parameters == "value")
   end
 
+  def test_no_body_request
+    actual = MockHelper.create_basic_request_builder
+                       .path('http://localhost/test/{key}')
+                       .http_method(HttpMethod::GET)
+                       .query_param(MockHelper.new_parameter("query", key: "key"))
+                       .template_param(MockHelper.new_parameter("template", key: "key"))
+                       .header_param(MockHelper.new_parameter("header", key: "key"))
+                       .build({})
+
+    assert_nil(actual.parameters)
+
+    actual = MockHelper.create_basic_request_builder
+                       .path('http://localhost/test/{key}')
+                       .http_method(HttpMethod::GET)
+                       .query_param(MockHelper.new_parameter("query", key: "key"))
+                       .template_param(MockHelper.new_parameter("template", key: "key"))
+                       .header_param(MockHelper.new_parameter("header", key: "key"))
+                       .form_param(MockHelper.new_parameter("form_param", key: "key"))
+                       .build({})
+
+    assert(actual.parameters["key"] == "form_param")
+  end
+
   def test_body_param_file
     file = File::open("README.md", "r")