Medium blogpost code snippet 1

testcontainers.go

import (
	"context"
	"fmt"
	"github.com/testcontainers/testcontainers-go"
	"github.com/testcontainers/testcontainers-go/wait"
)

func startContainer(ctx context.Context, username, password string) (testcontainers.Container, error) {
	request := testcontainers.ContainerRequest{
		Image:        "neo4j", // get latest Neo4j Docker image
		ExposedPorts: []string{"7687/tcp"}, // expose only Bolt port
		Env:          map[string]string{"NEO4J_AUTH": fmt.Sprintf("%s/%s", username, password)}, // override default credentials
		WaitingFor:   wait.ForLog("Bolt enabled"), // wait for Bolt
	}
	return testcontainers.GenericContainer(
		ctx,
		testcontainers.GenericContainerRequest{
			ContainerRequest: request,
			Started:          true, // start container immediately
		},
	)
}