diff --git a/integration_tests/gettxs_test.go b/integration_tests/gettxs_test.go
index db209de..fc345ad 100644
--- a/integration_tests/gettxs_test.go
+++ b/integration_tests/gettxs_test.go
@@ -1,7 +1,6 @@
 package integration_tests
 
 import (
-	"bytes"
 	"context"
 	"encoding/json"
 	"fmt"
@@ -120,15 +119,7 @@ func (suite *GetTxTestSuite) TestGetOutgoingInvoices() {
 	// create invoice
 	invoice = suite.createAddInvoiceReq(500, "integration test internal payment alice", suite.userToken)
 	// pay invoice, this will create outgoing invoice and settle it
-	rec = httptest.NewRecorder()
-	var buf bytes.Buffer
-	assert.NoError(suite.T(), json.NewEncoder(&buf).Encode(&controllers.PayInvoiceRequestBody{
-		Invoice: invoice.PayReq,
-	}))
-	req = httptest.NewRequest(http.MethodPost, "/payinvoice", &buf)
-	req.Header.Set(echo.HeaderContentType, echo.MIMEApplicationJSON)
-	req.Header.Add("Authorization", fmt.Sprintf("Bearer %s", suite.userToken))
-	suite.echo.ServeHTTP(rec, req)
+	suite.createPayInvoiceReq(invoice.PayReq, suite.userToken)
 	// check invoices again
 	req = httptest.NewRequest(http.MethodGet, "/gettxs", nil)
 	req.Header.Add("Authorization", fmt.Sprintf("Bearer %s", suite.userToken))
diff --git a/integration_tests/internal_payment_test.go b/integration_tests/internal_payment_test.go
index dc75130..4105504 100644
--- a/integration_tests/internal_payment_test.go
+++ b/integration_tests/internal_payment_test.go
@@ -1,13 +1,8 @@
 package integration_tests
 
 import (
-	"bytes"
 	"context"
-	"encoding/json"
-	"fmt"
 	"log"
-	"net/http"
-	"net/http/httptest"
 	"testing"
 	"time"
 
@@ -94,36 +89,13 @@ func (suite *PaymentTestSuite) TestInternalPayment() {
 	//create invoice for bob
 	bobInvoice := suite.createAddInvoiceReq(bobSatRequested, "integration test internal payment bob", suite.bobToken)
 	//pay bob from alice
-	rec := httptest.NewRecorder()
-	var buf bytes.Buffer
-	assert.NoError(suite.T(), json.NewEncoder(&buf).Encode(&controllers.PayInvoiceRequestBody{
-		Invoice: bobInvoice.PayReq,
-	}))
-	req := httptest.NewRequest(http.MethodPost, "/payinvoice", &buf)
-	req.Header.Set(echo.HeaderContentType, echo.MIMEApplicationJSON)
-	req.Header.Add("Authorization", fmt.Sprintf("Bearer %s", suite.aliceToken))
-	suite.echo.ServeHTTP(rec, req)
-	payResponse := &controllers.PayInvoiceResponseBody{}
-	assert.Equal(suite.T(), http.StatusOK, rec.Code)
-	assert.NoError(suite.T(), json.NewDecoder(rec.Body).Decode(payResponse))
+	payResponse := suite.createPayInvoiceReq(bobInvoice.PayReq, suite.aliceToken)
 	assert.NotEmpty(suite.T(), payResponse.PaymentPreimage)
-
 	//try to pay Bob more than we currently have
 	//create invoice for bob
 	tooMuch := suite.createAddInvoiceReq(10000, "integration test internal payment bob", suite.bobToken)
 	//pay bob from alice
-	var buf2 bytes.Buffer
-	assert.NoError(suite.T(), json.NewEncoder(&buf2).Encode(&controllers.PayInvoiceRequestBody{
-		Invoice: tooMuch.PayReq,
-	}))
-	rec = httptest.NewRecorder()
-	req = httptest.NewRequest(http.MethodPost, "/payinvoice", &buf2)
-	req.Header.Set(echo.HeaderContentType, echo.MIMEApplicationJSON)
-	req.Header.Add("Authorization", fmt.Sprintf("Bearer %s", suite.aliceToken))
-	suite.echo.ServeHTTP(rec, req)
-	assert.NotEqual(suite.T(), http.StatusOK, rec.Code)
-	errorResp := &responses.ErrorResponse{}
-	assert.NoError(suite.T(), json.NewDecoder(rec.Body).Decode(errorResp))
+	errorResp := suite.createPayInvoiceReqError(tooMuch.PayReq, suite.aliceToken)
 	assert.Equal(suite.T(), responses.NotEnoughBalanceError.Code, errorResp.Code)
 }
 
diff --git a/integration_tests/outgoing_payment_test.go b/integration_tests/outgoing_payment_test.go
index 596063b..6f24cb6 100644
--- a/integration_tests/outgoing_payment_test.go
+++ b/integration_tests/outgoing_payment_test.go
@@ -1,16 +1,9 @@
 package integration_tests
 
 import (
-	"bytes"
 	"context"
-	"encoding/json"
-	"fmt"
-	"net/http"
-	"net/http/httptest"
 	"time"
 
-	"github.com/getAlby/lndhub.go/controllers"
-	"github.com/labstack/echo/v4"
 	"github.com/lightningnetwork/lnd/lnrpc"
 	"github.com/stretchr/testify/assert"
 )
@@ -38,17 +31,6 @@ func (suite *PaymentTestSuite) TestOutGoingPayment() {
 	invoice, err := suite.fundingClient.AddInvoice(context.Background(), &externalInvoice)
 	assert.NoError(suite.T(), err)
 	//pay external from alice
-	rec := httptest.NewRecorder()
-	var buf bytes.Buffer
-	assert.NoError(suite.T(), json.NewEncoder(&buf).Encode(&controllers.PayInvoiceRequestBody{
-		Invoice: invoice.PaymentRequest,
-	}))
-	req := httptest.NewRequest(http.MethodPost, "/payinvoice", &buf)
-	req.Header.Set(echo.HeaderContentType, echo.MIMEApplicationJSON)
-	req.Header.Add("Authorization", fmt.Sprintf("Bearer %s", suite.aliceToken))
-	suite.echo.ServeHTTP(rec, req)
-	payResponse := &controllers.PayInvoiceResponseBody{}
-	assert.Equal(suite.T(), http.StatusOK, rec.Code)
-	assert.NoError(suite.T(), json.NewDecoder(rec.Body).Decode(payResponse))
+	payResponse := suite.createPayInvoiceReq(invoice.PaymentRequest, suite.aliceToken)
 	assert.NotEmpty(suite.T(), payResponse.PaymentPreimage)
 }
diff --git a/integration_tests/util.go b/integration_tests/util.go
index b422edb..0d726a3 100644
--- a/integration_tests/util.go
+++ b/integration_tests/util.go
@@ -14,6 +14,7 @@ import (
 	"github.com/getAlby/lndhub.go/db"
 	"github.com/getAlby/lndhub.go/db/migrations"
 	"github.com/getAlby/lndhub.go/lib"
+	"github.com/getAlby/lndhub.go/lib/responses"
 	"github.com/getAlby/lndhub.go/lib/service"
 	"github.com/getAlby/lndhub.go/lnd"
 	"github.com/labstack/echo/v4"
@@ -125,3 +126,37 @@ func (suite *TestSuite) createAddInvoiceReq(amt int, memo, token string) *contro
 	assert.NoError(suite.T(), json.NewDecoder(rec.Body).Decode(invoiceResponse))
 	return invoiceResponse
 }
+
+func (suite *TestSuite) createPayInvoiceReq(payReq string, token string) *controllers.PayInvoiceResponseBody {
+	rec := httptest.NewRecorder()
+	var buf bytes.Buffer
+	assert.NoError(suite.T(), json.NewEncoder(&buf).Encode(&controllers.PayInvoiceRequestBody{
+		Invoice: payReq,
+	}))
+	req := httptest.NewRequest(http.MethodPost, "/payinvoice", &buf)
+	req.Header.Set(echo.HeaderContentType, echo.MIMEApplicationJSON)
+	req.Header.Add("Authorization", fmt.Sprintf("Bearer %s", token))
+	suite.echo.ServeHTTP(rec, req)
+
+	payInvoiceResponse := &controllers.PayInvoiceResponseBody{}
+	assert.Equal(suite.T(), http.StatusOK, rec.Code)
+	assert.NoError(suite.T(), json.NewDecoder(rec.Body).Decode(payInvoiceResponse))
+	return payInvoiceResponse
+}
+
+func (suite *TestSuite) createPayInvoiceReqError(payReq string, token string) *responses.ErrorResponse {
+	rec := httptest.NewRecorder()
+	var buf bytes.Buffer
+	assert.NoError(suite.T(), json.NewEncoder(&buf).Encode(&controllers.PayInvoiceRequestBody{
+		Invoice: payReq,
+	}))
+	req := httptest.NewRequest(http.MethodPost, "/payinvoice", &buf)
+	req.Header.Set(echo.HeaderContentType, echo.MIMEApplicationJSON)
+	req.Header.Add("Authorization", fmt.Sprintf("Bearer %s", token))
+	suite.echo.ServeHTTP(rec, req)
+
+	errorResponse := &responses.ErrorResponse{}
+	assert.Equal(suite.T(), http.StatusBadRequest, rec.Code)
+	assert.NoError(suite.T(), json.NewDecoder(rec.Body).Decode(errorResponse))
+	return errorResponse
+}