nodebuilder

Documentation

Index

• Constants
• Variables
• func ConstructModule(tp node.Type, cfg *Config, store Store) fx.Option
• func Init(cfg Config, path string, tp node.Type) error
• func IsInit(path string) bool
• func SaveConfig(path string, cfg *Config) error
• func TestKeyringSigner(t *testing.T) *apptypes.KeyringSigner
• func WithBootstrappers(peers params.Bootstrappers) fx.Option
• func WithMetrics(metricOpts []otlpmetrichttp.Option, nodeType node.Type) fx.Option
• func WithNetwork(net params.Network) fx.Option
• type Config
  • func DefaultConfig(tp node.Type) *Config
  • func LoadConfig(path string) (*Config, error)
  • func (cfg *Config) Decode(r io.Reader) error
  • func (cfg *Config) Encode(w io.Writer) error
• type ConfigLoader
• type Node
  • func New(tp node.Type, store Store, options ...fx.Option) (*Node, error)
  • func NewWithConfig(tp node.Type, store Store, cfg *Config, options ...fx.Option) (*Node, error)
  • func TestNode(t *testing.T, tp node.Type, opts ...fx.Option) *Node
  • func TestNodeWithConfig(t *testing.T, tp node.Type, cfg *Config, opts ...fx.Option) *Node
  • func (n *Node) Run(ctx context.Context) error
  • func (n *Node) Start(ctx context.Context) error
  • func (n *Node) Stop(ctx context.Context) error
• type Store
  • func MockStore(t *testing.T, cfg *Config) Store
  • func NewMemStore() Store
  • func OpenStore(path string) (Store, error)

Constants

const Timeout = time.Second * 15

Variables

var (
	// ErrOpened is thrown on attempt to open already open/in-use Store.
	ErrOpened = errors.New("node: store is in use")
	// ErrNotInited is thrown on attempt to open Store without initialization.
	ErrNotInited = errors.New("node: store is not initialized")
)

Functions

func ConstructModule

func ConstructModule(tp node.Type, cfg *Config, store Store) fx.Option

func Init

func Init(cfg Config, path string, tp node.Type) error

Init initializes the Node FileSystem Store for the given Node Type 'tp' in the directory under 'path'.

func IsInit

func IsInit(path string) bool

IsInit checks whether FileSystem Store was setup under given 'path'. If any required file/subdirectory does not exist, then false is reported.

func SaveConfig

func SaveConfig(path string, cfg *Config) error

SaveConfig saves Config 'cfg' under the given 'path'.

func TestKeyringSigner

func TestKeyringSigner(t *testing.T) *apptypes.KeyringSigner

func WithBootstrappers

func WithBootstrappers(peers params.Bootstrappers) fx.Option

WithBootstrappers sets custom bootstrap peers.

func WithMetrics

func WithMetrics(metricOpts []otlpmetrichttp.Option, nodeType node.Type) fx.Option

WithMetrics enables metrics exporting for the node.

func WithNetwork

func WithNetwork(net params.Network) fx.Option

WithNetwork specifies the Network to which the Node should connect to. WARNING: Use this option with caution and never run the Node with different networks over the same persisted Store.

Types

type Config

type Config struct {
	Core   core.Config
	State  state.Config
	P2P    p2p.Config
	RPC    rpc.Config
	Share  share.Config
	Header header.Config
}

Config is main configuration structure for a Node. It combines configuration units for all Node subsystems.

func DefaultConfig

func DefaultConfig(tp node.Type) *Config

DefaultConfig provides a default Config for a given Node Type 'tp'. NOTE: Currently, configs are identical, but this will change.

func LoadConfig

func LoadConfig(path string) (*Config, error)

LoadConfig loads Config from the given 'path'.

func (*Config) Decode

func (cfg *Config) Decode(r io.Reader) error

Decode decodes a Config from a given reader r.

func (*Config) Encode

func (cfg *Config) Encode(w io.Writer) error

Encode encodes a given Config into w.

type ConfigLoader

type ConfigLoader func() (*Config, error)

ConfigLoader defines a function that loads a config from any source.

type Node

type Node struct {
	fx.In `ignore-unexported:"true"`

	Type          node.Type
	Network       params.Network
	Bootstrappers params.Bootstrappers
	Config        *Config

	// rpc components
	RPCServer *rpc.Server `optional:"true"`
	// p2p components
	Host         host.Host
	ConnGater    *conngater.BasicConnectionGater
	Routing      routing.PeerRouting
	DataExchange exchange.Interface
	BlockService blockservice.BlockService
	// p2p protocols
	PubSub *pubsub.PubSub
	// services
	ShareServ  share.Module  // not optional
	HeaderServ header.Module // not optional
	StateServ  state.Module  // not optional
	FraudServ  fraud.Module  // not optional
	DASer      *das.DASer    `optional:"true"`
	// contains filtered or unexported fields
}

Node represents the core structure of a Celestia node. It keeps references to all Celestia-specific components and services in one place and provides flexibility to run a Celestia node in different modes. Currently supported modes: * Bridge * Light * Full

func New

func New(tp node.Type, store Store, options ...fx.Option) (*Node, error)

New assembles a new Node with the given type 'tp' over Store 'store'.

func NewWithConfig

func NewWithConfig(tp node.Type, store Store, cfg *Config, options ...fx.Option) (*Node, error)

NewWithConfig assembles a new Node with the given type 'tp' over Store 'store' and a custom config.

func TestNode

func TestNode(t *testing.T, tp node.Type, opts ...fx.Option) *Node

func TestNodeWithConfig

func TestNodeWithConfig(t *testing.T, tp node.Type, cfg *Config, opts ...fx.Option) *Node

func (*Node) Run

func (n *Node) Run(ctx context.Context) error

Run is a Start which blocks on the given context 'ctx' until it is canceled. If canceled, the Node is still in the running state and should be gracefully stopped via Stop.

func (*Node) Start

func (n *Node) Start(ctx context.Context) error

Start launches the Node and all its components and services.

func (*Node) Stop

func (n *Node) Stop(ctx context.Context) error

Stop shuts down the Node, all its running Modules/Services and returns. Canceling the given context earlier 'ctx' unblocks the Stop and aborts graceful shutdown forcing remaining Modules/Services to close immediately.

type Store

type Store interface {
	// Path reports the FileSystem path of Store.
	Path() string

	// Keystore provides a Keystore to access keys.
	Keystore() (keystore.Keystore, error)

	// Datastore provides a Datastore - a KV store for arbitrary data to be stored on disk.
	Datastore() (datastore.Batching, error)

	// Config loads the stored Node config.
	Config() (*Config, error)

	// PutConfig alters the stored Node config.
	PutConfig(*Config) error

	// Close closes the Store freeing up acquired resources and locks.
	Close() error
}

Store encapsulates storage for the Node. Basically, it is the Store of all Stores. It provides access for the Node data stored in root directory e.g. '~/.celestia'.

func MockStore

func MockStore(t *testing.T, cfg *Config) Store

MockStore provides mock in memory Store for testing purposes.

func NewMemStore

func NewMemStore() Store

NewMemStore creates an in-memory Store for Node. Useful for testing.

func OpenStore

func OpenStore(path string) (Store, error)

OpenStore creates new FS Store under the given 'path'. To be opened the Store must be initialized first, otherwise ErrNotInited is thrown. OpenStore takes a file Lock on directory, hence only one Store can be opened at a time under the given 'path', otherwise ErrOpened is thrown.