From 7d494d5f7ab4edba04cef1a159413b6663c185a4 Mon Sep 17 00:00:00 2001
From: Lennard Brinkhaus <lennard.brinkhaus@dragse.de>
Date: Fri, 26 May 2023 12:19:36 +0200
Subject: [PATCH] add some debug stuff

---
 go.sum                 |  2 ++
 main.go                | 10 ++++++++++
 neo4jAPI/connection.go |  9 ++++++++-
 3 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/go.sum b/go.sum
index 7312b1e..cb4c7a3 100644
--- a/go.sum
+++ b/go.sum
@@ -7,9 +7,11 @@ github.com/neo4j/neo4j-go-driver/v5 v5.8.1 h1:IysKg6KJIUgyItmnHRRrt2N8srbd6znMsl
 github.com/neo4j/neo4j-go-driver/v5 v5.8.1/go.mod h1:Vff8OwT7QpLm7L2yYr85XNWe9Rbqlbeb9asNXJTHO4k=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/objx v0.1.0 h1:4G4v2dO3VZwixGIRoQ5Lfboy6nUhCyYzaqnIAPPhYs4=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.5.1 h1:nOGnQDM7FYENwehXlg/kFVnos3rEvtKTjRvOWSzb6H4=
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
diff --git a/main.go b/main.go
index 20fb1d9..afd552b 100644
--- a/main.go
+++ b/main.go
@@ -19,12 +19,22 @@ func main() {
 		log.Println(err)
 	}
 
+	log.Println("Setup Neo4J Connection")
 	// Connect to Neo4j DB
 	driver, err := neo4jAPI.NewConnection(config.Neo4jURL, config.Neo4jUsername, config.Neo4jPassword)
 	if err != nil {
 		log.Fatal(err)
 	}
 
+	err = driver.VerifyAuthentication(context.Background(), nil)
+
+	if err != nil {
+		log.Println("Cannot connect and authenticate to NEO4J DB")
+		log.Fatal(err)
+	}
+
+	log.Println("Connection successful")
+
 	ctx := context.Background()
 	defer func(driver neo4j.DriverWithContext, ctx context.Context) {
 		err := driver.Close(ctx)
diff --git a/neo4jAPI/connection.go b/neo4jAPI/connection.go
index 872da04..11bc9aa 100644
--- a/neo4jAPI/connection.go
+++ b/neo4jAPI/connection.go
@@ -6,10 +6,17 @@ import (
 )
 
 func NewConnection(uri string, username string, password string) (neo4j.DriverWithContext, error) {
-	driver, err := neo4j.NewDriverWithContext(uri, neo4j.BasicAuth(username, password, ""))
+	driver, err := neo4j.NewDriverWithContext(uri, neo4j.BasicAuth(username, password, ""),
+		useConsoleLogger(neo4j.DEBUG))
 	if err != nil {
 		return nil, fmt.Errorf("failed to create Neo4j driver: %v", err)
 	}
 	return driver, nil
 
 }
+
+func useConsoleLogger(level neo4j.LogLevel) func(config *neo4j.Config) {
+	return func(config *neo4j.Config) {
+		config.Log = neo4j.ConsoleLogger(level)
+	}
+}