added requestBillFetch api

src/main/java/com/billpaymentservice/bbps/config/RestClientConfig.java

@@ -0,0 +1,38 @@
+package com.billpaymentservice.bbps.config;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
+import org.springframework.web.client.RestClient;
+
+import javax.net.ssl.SSLContext;
+import javax.net.ssl.TrustManager;
+import javax.net.ssl.X509TrustManager;
+import java.security.cert.X509Certificate;
+
+@Configuration
+public class RestClientConfig {
+
+    @Bean
+    public RestClient restClient() throws Exception {
+        // ✅ Create trust all SSL context
+        SSLContext sslContext = SSLContext.getInstance("TLS");
+        TrustManager[] trustAllCerts = new TrustManager[]{
+            new X509TrustManager() {
+                public X509Certificate[] getAcceptedIssuers() {
+                    return new X509Certificate[0];
+                }
+                public void checkClientTrusted(X509Certificate[] certs, String authType) {
+                }
+                public void checkServerTrusted(X509Certificate[] certs, String authType) {
+                }
+            }
+        };
+        sslContext.init(null, trustAllCerts, new java.security.SecureRandom());
+
+        // ✅ Create RestClient with custom SSL context
+        return RestClient.builder()
+                .requestFactory(new HttpComponentsClientHttpRequestFactory())
+                .build();
+    }
+}