googleapis/mcp-toolbox · error

unable to create MongoDB client: %w

Error message

unable to create MongoDB client: %w

What it means

Error "unable to create MongoDB client: %w" thrown in googleapis/mcp-toolbox.

Source

Thrown at internal/sources/mongodb/mongodb.go:64

		return nil, err
	}
	return actual, nil
}

type Config struct {
	Name string `yaml:"name" validate:"required"`
	Type string `yaml:"type" validate:"required"`
	Uri  string `yaml:"uri" validate:"required"` // MongoDB Atlas connection URI
}

func (r Config) SourceConfigType() string {
	return SourceType
}

func (r Config) Initialize(ctx context.Context, tracer trace.Tracer) (sources.Source, error) {
	client, err := initMongoDBClient(ctx, tracer, r.Name, r.Uri)
	if err != nil {
		return nil, fmt.Errorf("unable to create MongoDB client: %w", err)
	}

	// Verify the connection
	err = client.Ping(ctx, nil)
	if err != nil {
		_ = client.Disconnect(ctx)
		return nil, fmt.Errorf("unable to connect successfully: %w", err)
	}

	s := &Source{
		Config: r,
		Client: client,
	}
	return s, nil
}

var _ sources.Source = &Source{}

View on GitHub (pinned to 8cc6e09de2)

When it happens

Trigger: Thrown at internal/sources/mongodb/mongodb.go:64 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of googleapis/mcp-toolbox@8cc6e09de2 (2026-09-05). Data as JSON: /api/errors/3b3a4aa1adb017ed. Report an issue: GitHub.