| title | Neo4j | ||
|---|---|---|---|
| keywords |
|
||
| description | Connecting to a Neo4j database. |
This project demonstrates how to connect to a Neo4j database in a Go application using the Fiber framework.
Ensure you have the following installed:
- Golang
- Fiber package
- Neo4j
- Neo4j Go Driver
-
Clone the repository:
git clone https://github.com/gofiber/recipes.git cd recipes/neo4j -
Install dependencies:
go get
-
Set up your Neo4j database and export connection settings:
export NEO4J_URI=neo4j://localhost:7687 export NEO4J_USER=neo4j export NEO4J_PASSWORD=password
- Start the application:
go run main.go
Here is an example of how to connect to a Neo4j database in a Fiber application:
package main
import (
"context"
"log"
"os"
"github.com/gofiber/fiber/v3"
"github.com/neo4j/neo4j-go-driver/v5/neo4j"
)
func main() {
uri := os.Getenv("NEO4J_URI")
user := os.Getenv("NEO4J_USER")
pass := os.Getenv("NEO4J_PASSWORD")
driver, err := neo4j.NewDriverWithContext(uri, neo4j.BasicAuth(user, pass, ""))
if err != nil {
log.Fatal(err)
}
defer driver.Close(context.Background())
app := fiber.New()
app.Get("/", func(c fiber.Ctx) error {
ctx := context.Background()
session := driver.NewSession(ctx, neo4j.SessionConfig{
DatabaseName: "movies",
AccessMode: neo4j.AccessModeRead,
})
defer session.Close(ctx)
result, err := session.Run(ctx, "RETURN 'Hello, World!' AS message", nil)
if err != nil {
return c.Status(fiber.StatusInternalServerError).JSON(fiber.Map{"error": err.Error()})
}
if result.Next(ctx) {
return c.Status(fiber.StatusOK).JSON(fiber.Map{"message": result.Record().AsMap()["message"]})
}
if result.Err() != nil {
return c.Status(fiber.StatusInternalServerError).JSON(fiber.Map{"error": result.Err().Error()})
}
return c.SendStatus(fiber.StatusNotFound)
})
log.Fatal(app.Listen(":3000"))
}