Utils: Create a function to append parameters to a base URL

src/invidious/http_server/utils.cr

@@ -1,3 +1,5 @@
+require "uri"
+
 module Invidious::HttpServer
   module Utils
     extend self
@@ -16,5 +18,23 @@ module Invidious::HttpServer
         return "#{url.request_target}?#{params}"
       end
     end
+
+    def add_params_to_url(url : String | URI, params : URI::Params) : URI
+      url = URI.parse(url) if url.is_a?(String)
+
+      url_query = url.query || ""
+
+      # Append the parameters
+      url.query = String.build do |str|
+        if !url_query.empty?
+          str << url_query
+          str << '&'
+        end
+
+        str << params
+      end
+
+      return url
+    end
   end
 end