ethereumjs-client › "net/protocol/protocol" › Protocol

Class: Protocol

Base class for all wire protocols

memberof module:net/protocol

Hierarchy

• EventEmitter

  ↳ Protocol

  ↳ EthProtocol

  ↳ LesProtocol

Index

Constructors

• constructor

Properties

• config
• opened
• timeout
• defaultMaxListeners
• errorMonitor

Accessors

• messages
• name
• versions

Methods

• addListener
• bind
• decode
• decodeStatus
• emit
• encode
• encodeStatus
• eventNames
• getMaxListeners
• handshake
• listenerCount
• listeners
• off
• on
• once
• open
• prependListener
• prependOnceListener
• rawListeners
• removeAllListeners
• removeListener
• setMaxListeners
• listenerCount

Constructors

constructor

+ new Protocol(options: ProtocolOptions): Protocol

Overrides void

Defined in lib/net/protocol/protocol.ts:43

Create new protocol

Parameters:

Name	Type
options	ProtocolOptions

Returns: Protocol

Properties

config

• config: Config

Defined in lib/net/protocol/protocol.ts:41

---

opened

• opened: boolean

Defined in lib/net/protocol/protocol.ts:43

---

timeout

• timeout: number

Defined in lib/net/protocol/protocol.ts:42

---

Static defaultMaxListeners

▪ defaultMaxListeners: number

Inherited from Sender.defaultMaxListeners

Defined in node_modules/@types/node/events.d.ts:45

---

Static errorMonitor

▪ errorMonitor: keyof symbol

Inherited from Sender.errorMonitor

Defined in node_modules/@types/node/events.d.ts:55

This symbol shall be used to install a listener for only monitoring 'error' events. Listeners installed using this symbol are called before the regular 'error' listeners are called.

Installing a listener using this symbol does not change the behavior once an 'error' event is emitted, therefore the process will still crash if no regular 'error' listener is installed.

Accessors

messages

• get messages(): Message[]

Defined in lib/net/protocol/protocol.ts:113

Messages defined by this protocol

type {Protocol~Message[]}

Returns: Message[]

---

name

• get name(): string

Defined in lib/net/protocol/protocol.ts:97

Abstract getter for name of protocol

type {string}

Returns: string

---

versions

• get versions(): number[]

Defined in lib/net/protocol/protocol.ts:105

Protocol versions supported

type {number[]}

Returns: number[]

Methods

addListener

▸ addListener(event: string | symbol, listener: function): this

Inherited from Sender.addListener

Defined in node_modules/@types/node/events.d.ts:62

Parameters:

▪ event: string | symbol

▪ listener: function

▸ (...args: any[]): void

Parameters:

Name	Type
...args	any[]

Returns: this

---

bind

▸ bind(peer: Peer, sender: Sender): Promise‹BoundProtocol›

Defined in lib/net/protocol/protocol.ts:171

Binds this protocol to a given peer using the specified sender to handle message communication.

Parameters:

Name	Type	Description
peer	Peer	peer
sender	Sender	sender

Returns: Promise‹BoundProtocol›

---

Protected decode

▸ decode(message: Message, payload: any): any

Defined in lib/net/protocol/protocol.ts:157

Decodes message payload

Parameters:

Name	Type	Description
message	Message	message definition
payload	any	message payload

Returns: any

---

decodeStatus

▸ decodeStatus(_status: any): any

Defined in lib/net/protocol/protocol.ts:131

Decodes status message payload into a status object. Must be implemented by subclass.

Parameters:

Name	Type
_status	any

Returns: any

---

emit

▸ emit(event: string | symbol, ...args: any[]): boolean

Inherited from Sender.emit

Defined in node_modules/@types/node/events.d.ts:72

Parameters:

Name	Type
event	string | symbol
...args	any[]

Returns: boolean

---

Protected encode

▸ encode(message: Message, args: any): any

Defined in lib/net/protocol/protocol.ts:142

Encodes message into proper format before sending

Parameters:

Name	Type	Description
message	Message	message definition
args	any	message arguments

Returns: any

---

encodeStatus

▸ encodeStatus(): any

Defined in lib/net/protocol/protocol.ts:121

Encodes status into status message payload. Must be implemented by subclass.

Returns: any

---

eventNames

▸ eventNames(): Array‹string | symbol›

Inherited from Sender.eventNames

Defined in node_modules/@types/node/events.d.ts:77

Returns: Array‹string | symbol›

---

getMaxListeners

▸ getMaxListeners(): number

Inherited from Sender.getMaxListeners

Defined in node_modules/@types/node/events.d.ts:69

Returns: number

---

Private handshake

▸ handshake(sender: Sender): Promise‹unknown›

Defined in lib/net/protocol/protocol.ts:71

Perform handshake given a sender from subclass.

Parameters:

Name	Type
sender	Sender

Returns: Promise‹unknown›

---

listenerCount

▸ listenerCount(event: string | symbol): number

Inherited from Sender.listenerCount

Defined in node_modules/@types/node/events.d.ts:73

Parameters:

Name	Type
event	string | symbol

Returns: number

---

listeners

▸ listeners(event: string | symbol): Function[]

Inherited from Sender.listeners

Defined in node_modules/@types/node/events.d.ts:70

Parameters:

Name	Type
event	string | symbol

Returns: Function[]

---

off

▸ off(event: string | symbol, listener: function): this

Inherited from Sender.off

Defined in node_modules/@types/node/events.d.ts:66

Parameters:

▪ event: string | symbol

▪ listener: function

▸ (...args: any[]): void

Parameters:

Name	Type
...args	any[]

Returns: this

---

on

▸ on(event: string | symbol, listener: function): this

Inherited from Sender.on

Defined in node_modules/@types/node/events.d.ts:63

Parameters:

▪ event: string | symbol

▪ listener: function

▸ (...args: any[]): void

Parameters:

Name	Type
...args	any[]

Returns: this

---

once

▸ once(event: string | symbol, listener: function): this

Inherited from Sender.once

Defined in node_modules/@types/node/events.d.ts:64

Parameters:

▪ event: string | symbol

▪ listener: function

▸ (...args: any[]): void

Parameters:

Name	Type
...args	any[]

Returns: this

---

open

▸ open(): Promise‹boolean | void›

Defined in lib/net/protocol/protocol.ts:62

Opens protocol and any associated dependencies

Returns: Promise‹boolean | void›

---

prependListener

▸ prependListener(event: string | symbol, listener: function): this

Inherited from Sender.prependListener

Defined in node_modules/@types/node/events.d.ts:75

Parameters:

▪ event: string | symbol

▪ listener: function

▸ (...args: any[]): void

Parameters:

Name	Type
...args	any[]

Returns: this

---

prependOnceListener

▸ prependOnceListener(event: string | symbol, listener: function): this

Inherited from Sender.prependOnceListener

Defined in node_modules/@types/node/events.d.ts:76

Parameters:

▪ event: string | symbol

▪ listener: function

▸ (...args: any[]): void

Parameters:

Name	Type
...args	any[]

Returns: this

---

rawListeners

▸ rawListeners(event: string | symbol): Function[]

Inherited from Sender.rawListeners

Defined in node_modules/@types/node/events.d.ts:71

Parameters:

Name	Type
event	string | symbol

Returns: Function[]

---

removeAllListeners

▸ removeAllListeners(event?: string | symbol): this

Inherited from Sender.removeAllListeners

Defined in node_modules/@types/node/events.d.ts:67

Parameters:

Name	Type
event?	string | symbol

Returns: this

---

removeListener

▸ removeListener(event: string | symbol, listener: function): this

Inherited from Sender.removeListener

Defined in node_modules/@types/node/events.d.ts:65

Parameters:

▪ event: string | symbol

▪ listener: function

▸ (...args: any[]): void

Parameters:

Name	Type
...args	any[]

Returns: this

---

setMaxListeners

▸ setMaxListeners(n: number): this

Inherited from Sender.setMaxListeners

Defined in node_modules/@types/node/events.d.ts:68

Parameters:

Name	Type
n	number

Returns: this

---

Static listenerCount

▸ listenerCount(emitter: EventEmitter, event: string | symbol): number

Inherited from Sender.listenerCount

Defined in node_modules/@types/node/events.d.ts:44

deprecated since v4.0.0

Parameters:

Name	Type
emitter	EventEmitter
event	string | symbol

Returns: number