app-cloudep-tweeting-service/internal/lib/neo4j/neo4j.go

54 lines
1.4 KiB
Go

package neo4j
import (
"context"
"fmt"
"github.com/neo4j/neo4j-go-driver/v5/neo4j"
n4Cfg "github.com/neo4j/neo4j-go-driver/v5/neo4j/config"
)
// NewNeo4J initializes a Neo4jInit using the provided Config and options.
// If opts is not provided, it will initialize Neo4jInit with default configuration.
func NewNeo4J(conf *Config, opts ...Option) *Client {
driverConfig := &n4Cfg.Config{
MaxConnectionLifetime: conf.MaxConnectionLifetime,
MaxConnectionPoolSize: conf.MaxConnectionPoolSize,
ConnectionAcquisitionTimeout: conf.ConnectionTimeout,
}
neo4ji := &Client{
neo4jConf: driverConfig,
serviceConf: Config{
URI: conf.URI,
Username: conf.Username,
Password: conf.Password,
LogLevel: conf.LogLevel,
},
}
for _, opt := range opts {
opt(neo4ji)
}
return neo4ji
}
// Conn initiates connection to the database and returns a Neo4j driver instance.
func (c *Client) Conn() (neo4j.DriverWithContext, error) {
auth := neo4j.BasicAuth(c.serviceConf.Username, c.serviceConf.Password, "")
driver, err := neo4j.NewDriverWithContext(c.serviceConf.URI, auth, func(_ *n4Cfg.Config) {})
if err != nil {
return nil, fmt.Errorf("neo4j driver initialization error: %w", err)
}
ctx := context.Background()
// Verify the connection to Neo4j.
err = driver.VerifyConnectivity(ctx)
if err != nil {
return nil, fmt.Errorf("neo4j connectivity verification error: %w", err)
}
return driver, nil
}