Add Rack CORS gem and configure middleware for CORS support

Author: tuanle03

Gemfile

@@ -60,6 +60,8 @@ gem 'faker'
 
 gem 'blazer'
 
+gem 'rack-cors'
+
 # Use Sass to process CSS
 # gem "sassc-rails"
 

Gemfile.lock

@@ -206,6 +206,8 @@ GEM
     rack (2.2.8)
     rack-accept (0.4.5)
       rack (>= 0.4)
+    rack-cors (2.0.1)
+      rack (>= 2.0.0)
     rack-test (2.1.0)
       rack (>= 1.3)
     rails (7.0.4.3)
@@ -334,6 +336,7 @@ DEPENDENCIES
   jbuilder
   pg
   puma (~> 5.0)
+  rack-cors
   rails (~> 7.0.4, >= 7.0.4.3)
   redis (~> 4.0)
   rspec-rails

config/environments/production.rb

@@ -90,4 +90,11 @@
 
   # Do not dump schema after migrations.
   config.active_record.dump_schema_after_migration = false
+
+  config.middleware.insert_before(0, Rack::Cors) do
+    allow do
+      origins 'https://codelearn-api-72b30d70ca73.herokuapp.com/'
+      resource '*', headers: :any, methods: %i[get post patch put delete options]
+    end
+  end
 end