updated code for cors

src/main/java/net/gepafin/tendermanagement/TendermanagementApplication.java

@@ -2,7 +2,10 @@ package net.gepafin.tendermanagement;
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.annotation.Configuration;
 import org.springframework.scheduling.annotation.EnableScheduling;
+import org.springframework.web.servlet.config.annotation.CorsRegistry;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
 
 @EnableScheduling
 @SpringBootApplication
@@ -12,6 +15,16 @@ public class TendermanagementApplication {
 		SpringApplication.run(TendermanagementApplication.class, args);
 		System.out.println("Spring Boot started");
 	}
+	
+	@Configuration
+	public class CorsConfig implements WebMvcConfigurer {
+
+		@Override
+		public void addCorsMappings(CorsRegistry registry) {
+			registry.addMapping("/**").allowedOrigins("http://localhost:3000")
+					.allowedMethods("GET", "POST", "PUT", "DELETE", "HEAD").allowCredentials(true);
+		}
+	}
 
 }