Moved new postgres implementation to v2 folder, also added nil check for db object in postgres config

postgres/v2/config.go

@@ -1,7 +1,7 @@
-package postgres
+package v2
 
 import (
-	"github.com/jackc/pgx/v4/pgxpool"
+	"github.com/jackc/pgx/pgxpool"
 	"time"
 )
 
@@ -30,9 +30,9 @@ type Config struct {
 
 // ConfigDefault is the default config
 var ConfigDefault = Config{
-	Table:           "fiber_storage",
+	Table:      "fiber_storage",
-	Reset:           false,
+	Reset:      false,
-	GCInterval:      10 * time.Second,
+	GCInterval: 10 * time.Second,
 }
 
 // Helper function to set default values

postgres/v2/postgres.go

@@ -1,10 +1,12 @@
-package postgres
+package v2
 
 import (
 	"context"
 	"database/sql"
+	"errors"
 	"fmt"
 	"github.com/jackc/pgx/v4/pgxpool"
+	"reflect"
 	"strings"
 	"time"
 )
@@ -45,6 +47,10 @@ func New(config ...Config) *Storage {
 
 	db := cfg.Db
 
+	if reflect.ValueOf(db).IsNil() {
+		panic(errors.New("db pool instance must be passed into the config"))
+	}
+
 	// Ping database
 	if err := db.Ping(context.Background()); err != nil {
 		panic(err)
@@ -180,4 +186,4 @@ func (s *Storage) checkSchema(tableName string) {
 	if strings.ToLower(string(data)) != "bytea" {
 		fmt.Printf(checkSchemaMsg, string(data))
 	}
-}
+}

postgres/v2/postgres_test.go

@@ -1,4 +1,4 @@
-package postgres
+package v2
 
 import (
 	"context"
@@ -10,7 +10,7 @@ import (
 )
 
 var testStore = New(Config{
-	Reset:    true,
+	Reset: true,
 })
 
 func Test_Postgres_Set(t *testing.T) {
@@ -163,7 +163,7 @@ func Test_SslRequiredMode(t *testing.T) {
 		}
 	}()
 	_ = New(Config{
-		Reset:    true,
+		Reset: true,
 	})
 }