Neoql is a Go database/sql implementation for Neo4j databases, using the new Bolt protocol.
go get gopkg.in/neoql.v1
For detailed documentation, please see the package documentation at https://godoc.org/gopkg.in/neoql.v1.
Because the purpose of neoql is to use the new Bolt protocol, Neo4j v3.0 (or newer) is required. If you have an older version, you may want to use the cq driver
Furthermore, this package is tested against Go version 1.5 and 1.6.
This example creates two nodes, one relationship, and use a custom type which implements the Scanner interface. For more information, please refer to the documentation, and feel free to use the Github issue system to ask a question.
import (
"errors"
"log"
"database/sql"
_ "gopkg.in/neoql.v1"
"gopkg.in/neoql.v1/types"
"fmt"
)
type User struct {
ID uint64
Username string
}
// Scanner interface implementation, so we can pass a User to Scan()
func (user *User) Scan(src interface{}) error {
if node, ok := src.(*types.Node); !ok {
return errors.New("failed to scan User.")
} else {
user.ID = node.ID
if username, ok := node.Properties["username"] ; ok {
user.Username = username.(string)
}
}
return nil
}
func main() {
var (
err error
user User
node types.Node
rs types.Relationship
db *sql.DB
row *sql.Row
)
if db, err = sql.Open("neo4j-bolt", "bolt://neo4j:password@0.0.0.0:7687") ; err != nil {
log.Fatal(err)
}
defer db.Close()
row = db.QueryRow(`CREATE (u {username: {0}})-[r:LIKES]->(n) RETURN u, r, n`, "Bruce")
if err = row.Scan(&user, &rs, &node) ; err != nil {
log.Fatal(err)
}
fmt.Println(user, rs.ID, rs.StartID, rs.EndID, node.ID, node.Properties)
}