adding pagination for transaction controller

src/main/java/zw/qantra/tm/domain/controllers/TransactonController.java

@@ -7,6 +7,8 @@ import net.kaczmarzyk.spring.data.jpa.web.annotation.Or;
 import net.kaczmarzyk.spring.data.jpa.web.annotation.Spec;
 import net.kaczmarzyk.spring.data.jpa.web.annotation.Conjunction;
 import org.springframework.data.jpa.domain.Specification;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
 import zw.qantra.tm.domain.services.TransactionService;
 import zw.qantra.tm.domain.models.Transaction;
 
@@ -16,7 +18,6 @@ import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
 import zw.qantra.tm.utils.LogUtils;
 
-import java.util.List;
 import java.util.UUID;
 
 @RestController
@@ -28,7 +29,7 @@ public class TransactonController {
     private final TransactionService transactionService;
 
     @GetMapping
-    public ResponseEntity<List<Transaction>> getAll(
+    public ResponseEntity<Page<Transaction>> getAll(
         @Conjunction(value = {
             @Or({
                 @Spec(path = "status", spec = Equal.class),
@@ -54,9 +55,9 @@ public class TransactonController {
             })
     }, and = {
         @Spec(path = "type", spec = Equal.class),
-        @Spec(path = "userId", spec = Equal.class),
-    }) Specification<Transaction> specification) {
-        return ResponseEntity.ok(transactionService.findAll(specification));
+        @Spec(path = "userId", defaultVal = "null", spec = Equal.class),
+    }) Specification<Transaction> specification, Pageable pageable) {
+        return ResponseEntity.ok(transactionService.findAll(specification, pageable));
     }
 
     @GetMapping("/{id}")

src/main/java/zw/qantra/tm/domain/services/TransactionService.java

@@ -10,6 +10,8 @@ import java.util.UUID;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
 import org.springframework.data.domain.Sort;
 import org.springframework.data.jpa.domain.Specification;
 import org.springframework.stereotype.Service;
@@ -182,8 +184,8 @@ public class TransactionService {
         return transaction;
     }
 
-    public List<Transaction> findAll(Specification<Transaction> spec) {
-        return transactionRepository.findAll(spec, Sort.by(Sort.Direction.ASC, "createdAt"));
+    public Page<Transaction> findAll(Specification<Transaction> spec, Pageable pageable) {
+        return transactionRepository.findAll(spec, pageable);
     }
 
     public Transaction save(Transaction transaction){

src/main/java/zw/qantra/tm/domain/services/processors/payments/EcocashRemotePaymentProcessor.java

@@ -63,7 +63,7 @@ public class EcocashRemotePaymentProcessor implements TransactionProcessorInterf
                 .action("PAYMENT")
                 .sandbox(true)
                 .paymentProcessorLabel("ECOCASH")
-                .responseUrl("https://peakapi.stewardpay.co.zw")
+                .responseUrl("https://peakapi.qantra.co.zw")
                 .build();
 
         HttpHeaders headers = new HttpHeaders();