integrate backend with frontend

backend/src/main/java/com/example/BriefMe/BriefMeApplication.java

@@ -1,20 +1,12 @@
 package com.example.BriefMe;
 
-import com.example.BriefMe.service.client.AudioExtractor;
-import com.example.BriefMe.service.client.AudioToTextConverter;
-import com.example.BriefMe.service.client.TextSummarizer;
-import com.example.BriefMe.service.impl.AudioToTextConverterImpl;
-import com.example.BriefMe.service.impl.CustomTextSummarizer;
-import com.example.BriefMe.service.impl.YoutubeAudioExtractorImpl;
-import java.io.IOException;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 
 @SpringBootApplication
 @Slf4j
 public class BriefMeApplication {
-
 	public static void main(String[] args){
 		SpringApplication.run(BriefMeApplication.class, args);
 	}

backend/src/main/java/com/example/BriefMe/config/CorsConfig.java

@@ -0,0 +1,22 @@
+package com.example.BriefMe.config;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.cors.CorsConfiguration;
+import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
+import org.springframework.web.filter.CorsFilter;
+
+@Configuration
+public class CorsConfig {
+
+    @Bean
+    public CorsFilter corsFilter() {
+        CorsConfiguration corsConfig = new CorsConfiguration();
+        corsConfig.addAllowedOrigin("*");
+        corsConfig.addAllowedMethod("*");
+        corsConfig.addAllowedHeader("*");
+        UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
+        source.registerCorsConfiguration("/**", corsConfig);
+        return new CorsFilter(source);
+    }
+}