Class: `abstract` FuelConnector

Name

FuelConnector

Wallet Connector is a interface that represents a Wallet Connector and all the methods that should be implemented to be compatible with the Fuel SDK.

Extends

EventEmitter

Extended by

Fuel

Implements

Connector

Constructors

new FuelConnector()

new FuelConnector(options?): FuelConnector

Parameters

• options?: EventEmitterOptions

Returns

FuelConnector

Inherited from

EventEmitter.constructor

Defined in

node_modules/.pnpm/@types+node@22.2.0/node_modules/@types/node/events.d.ts:134

Properties

connected

connected: boolean = false

Defined in

packages/account/src/connectors/fuel-connector.ts:90

events

events: typeof FuelConnectorEventTypes = FuelConnectorEventTypes

Defined in

packages/account/src/connectors/fuel-connector.ts:92

installed

installed: boolean = false

Defined in

packages/account/src/connectors/fuel-connector.ts:91

metadata

metadata: ConnectorMetadata

Defined in

packages/account/src/connectors/fuel-connector.ts:89

name

name: string = ''

Defined in

packages/account/src/connectors/fuel-connector.ts:88

captureRejectionSymbol

readonly static captureRejectionSymbol: typeof captureRejectionSymbol

Value: Symbol.for('nodejs.rejection')

See how to write a custom rejection handler.

Since

v13.4.0, v12.16.0

Inherited from

EventEmitter.captureRejectionSymbol

Defined in

node_modules/.pnpm/@types+node@22.2.0/node_modules/@types/node/events.d.ts:452

captureRejections

static captureRejections: boolean

Value: boolean

Change the default captureRejections option on all new EventEmitter objects.

Since

v13.4.0, v12.16.0

Inherited from

EventEmitter.captureRejections

Defined in

node_modules/.pnpm/@types+node@22.2.0/node_modules/@types/node/events.d.ts:459

defaultMaxListeners

static defaultMaxListeners: number

By default, a maximum of 10 listeners can be registered for any single event. This limit can be changed for individual EventEmitter instances using the emitter.setMaxListeners(n) method. To change the default for allEventEmitter instances, the events.defaultMaxListeners property can be used. If this value is not a positive number, a RangeError is thrown.

Take caution when setting the events.defaultMaxListeners because the change affects all EventEmitter instances, including those created before the change is made. However, calling emitter.setMaxListeners(n) still has precedence over events.defaultMaxListeners.

This is not a hard limit. The EventEmitter instance will allow more listeners to be added but will output a trace warning to stderr indicating that a "possible EventEmitter memory leak" has been detected. For any single EventEmitter, the emitter.getMaxListeners() and emitter.setMaxListeners() methods can be used to temporarily avoid this warning:

import { EventEmitter } from 'node:events';
const emitter = new EventEmitter();
emitter.setMaxListeners(emitter.getMaxListeners() + 1);
emitter.once('event', () => {
  // do stuff
  emitter.setMaxListeners(Math.max(emitter.getMaxListeners() - 1, 0));
});

The --trace-warnings command-line flag can be used to display the stack trace for such warnings.

The emitted warning can be inspected with process.on('warning') and will have the additional emitter, type, and count properties, referring to the event emitter instance, the event's name and the number of attached listeners, respectively. Its name property is set to 'MaxListenersExceededWarning'.

Since

v0.11.2

Inherited from

EventEmitter.defaultMaxListeners

Defined in

node_modules/.pnpm/@types+node@22.2.0/node_modules/@types/node/events.d.ts:498

errorMonitor

readonly static errorMonitor: typeof errorMonitor

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.

Since

v13.6.0, v12.17.0

Inherited from

EventEmitter.errorMonitor

Defined in

node_modules/.pnpm/@types+node@22.2.0/node_modules/@types/node/events.d.ts:445

Methods

[captureRejectionSymbol]()?

optional [captureRejectionSymbol]<K>(error, event, ...args): void

Type Parameters

• K

Parameters

• error: Error

• event: string | symbol

• ...args: AnyRest

Returns

void

Inherited from

EventEmitter.[captureRejectionSymbol]

Defined in

node_modules/.pnpm/@types+node@22.2.0/node_modules/@types/node/events.d.ts:136

accounts()

accounts(): Promise<string[]>

Should return all the accounts authorized for the current connection.

Returns

Promise<string[]>

The accounts addresses strings

Implementation of

Connector.accounts

Defined in

packages/account/src/connectors/fuel-connector.ts:130

addABI()

addABI(_contractId, _abi): Promise<boolean>

Should add the ABI to the connector and return true if the ABI was added successfully.

Parameters

• _contractId: string

• _abi: JsonAbi

Returns

Promise<boolean>

Return true if the ABI was added successfully.

Implementation of

Connector.addABI

Defined in

packages/account/src/connectors/fuel-connector.ts:301

addAsset()

addAsset(_asset): Promise<boolean>

Emits

Should add the asset metadata to the connector and return true if the asset was added successfully.

If the asset already exists it should throw an error.

assets

Parameters

• _asset: Asset

Returns

Promise<boolean>

True if the asset was added successfully

Throws

Error if the asset already exists

Implementation of

Connector.addAsset

Defined in

packages/account/src/connectors/fuel-connector.ts:239

addAssets()

addAssets(_assets): Promise<boolean>

Emits

Should add the assets metadata to the connector and return true if the asset was added successfully.

If the asset already exists it should throw an error.

assets

Parameters

• _assets: Asset[]

Returns

Promise<boolean>

True if the asset was added successfully

Throws

Error if the asset already exists

Implementation of

Connector.addAssets

Defined in

packages/account/src/connectors/fuel-connector.ts:224

addListener()

addListener<K>(eventName, listener): this

Alias for emitter.on(eventName, listener).

Type Parameters

• K

Parameters

• eventName: string | symbol

• listener

Returns

this

Since

v0.1.26

Inherited from

EventEmitter.addListener

Defined in

node_modules/.pnpm/@types+node@22.2.0/node_modules/@types/node/events.d.ts:597

addNetwork()

addNetwork(_networkUrl): Promise<boolean>

Emits

Should start the add network process and return true if the network was added successfully.

networks

Parameters

• _networkUrl: string

Returns

Promise<boolean>

Return true if the network was added successfully

Throws

Error if the network already exists

Implementation of

Connector.addNetwork

Defined in

packages/account/src/connectors/fuel-connector.ts:260

assets()

assets(): Promise<Asset[]>

Should return all the assets added to the connector. If a connection is already established.

Returns

Promise<Asset[]>

Array of assets metadata from the connector vinculated to the all accounts from a specific Wallet.

Implementation of

Connector.assets

Defined in

packages/account/src/connectors/fuel-connector.ts:248

connect()

connect(): Promise<boolean>

Emits

Should start the connection process and return true if the account authorize the connection.

and return false if the user reject the connection.

accounts

Returns

Promise<boolean>

boolean - connection status.

Implementation of

Connector.connect

Defined in

packages/account/src/connectors/fuel-connector.ts:143

currentAccount()

currentAccount(): Promise<null | string>

Should return the current account selected inside the connector, if the account is authorized for the connection.

If the account is not authorized it should return null.

Returns

Promise<null | string>

The current account selected otherwise null.

Implementation of

Connector.currentAccount

Defined in

packages/account/src/connectors/fuel-connector.ts:209

currentNetwork()

currentNetwork(): Promise<Network>

Should return the current network selected inside the connector. Even if the connection is not established.

Returns

Promise<Network>

Return the current network selected inside the connector.

Implementation of

Connector.currentNetwork

Defined in

packages/account/src/connectors/fuel-connector.ts:290

disconnect()

disconnect(): Promise<boolean>

Emits

Should disconnect the current connection and return false if the disconnection was successful.

assets connection

Returns

Promise<boolean>

The connection status.

Implementation of

Connector.disconnect

Defined in

packages/account/src/connectors/fuel-connector.ts:154

emit()

emit<K>(eventName, ...args): boolean

Synchronously calls each of the listeners registered for the event named eventName, in the order they were registered, passing the supplied arguments to each.

Returns true if the event had listeners, false otherwise.

import { EventEmitter } from 'node:events';
const myEmitter = new EventEmitter();

// First listener
myEmitter.on('event', function firstListener() {
  console.log('Helloooo! first listener');
});
// Second listener
myEmitter.on('event', function secondListener(arg1, arg2) {
  console.log(`event with parameters ${arg1}, ${arg2} in second listener`);
});
// Third listener
myEmitter.on('event', function thirdListener(...args) {
  const parameters = args.join(', ');
  console.log(`event with parameters ${parameters} in third listener`);
});

console.log(myEmitter.listeners('event'));

myEmitter.emit('event', 1, 2, 3, 4, 5);

// Prints:
// [
//   [Function: firstListener],
//   [Function: secondListener],
//   [Function: thirdListener]
// ]
// Helloooo! first listener
// event with parameters 1, 2 in second listener
// event with parameters 1, 2, 3, 4, 5 in third listener

Type Parameters

• K

Parameters

• eventName: string | symbol

• ...args: AnyRest

Returns

boolean

Since

v0.1.26

Inherited from

EventEmitter.emit

Defined in

node_modules/.pnpm/@types+node@22.2.0/node_modules/@types/node/events.d.ts:859

eventNames()

eventNames(): (string | symbol)[]

Returns an array listing the events for which the emitter has registered listeners. The values in the array are strings or Symbols.

import { EventEmitter } from 'node:events';

const myEE = new EventEmitter();
myEE.on('foo', () => {});
myEE.on('bar', () => {});

const sym = Symbol('symbol');
myEE.on(sym, () => {});

console.log(myEE.eventNames());
// Prints: [ 'foo', 'bar', Symbol(symbol) ]

Returns

(string | symbol)[]

Since

v6.0.0

Inherited from

EventEmitter.eventNames

Defined in

node_modules/.pnpm/@types+node@22.2.0/node_modules/@types/node/events.d.ts:922

getABI()

getABI(_id): Promise<null | JsonAbi>

Should return the ABI from the connector vinculated to the all accounts from a specific Wallet.

Parameters

• _id: string

Returns

Promise<null | JsonAbi>

The ABI if it exists, otherwise return null.

Implementation of

Connector.getABI

Defined in

packages/account/src/connectors/fuel-connector.ts:311

getMaxListeners()

getMaxListeners(): number

Returns the current max listener value for the EventEmitter which is either set by emitter.setMaxListeners(n) or defaults to defaultMaxListeners.

Returns

number

Since

v1.0.0

Inherited from

EventEmitter.getMaxListeners

Defined in

node_modules/.pnpm/@types+node@22.2.0/node_modules/@types/node/events.d.ts:774

hasABI()

hasABI(_id): Promise<boolean>

Should return true if the abi exists in the connector vinculated to the all accounts from a specific Wallet.

Parameters

• _id: string

Returns

Promise<boolean>

Returns true if the abi exists or false if not.

Implementation of

Connector.hasABI

Defined in

packages/account/src/connectors/fuel-connector.ts:321

isConnected()

isConnected(): Promise<boolean>

Should return true if the connector is connected to any of the accounts available.

Returns

Promise<boolean>

The connection status.

Implementation of

Connector.isConnected

Defined in

packages/account/src/connectors/fuel-connector.ts:120

listenerCount()

listenerCount<K>(eventName, listener?): number

Returns the number of listeners listening for the event named eventName. If listener is provided, it will return how many times the listener is found in the list of the listeners of the event.

Type Parameters

• K

Parameters

• eventName: string | symbol

The name of the event being listened for

• listener?: Function

The event handler function

Returns

number

Since

v3.2.0

Inherited from

EventEmitter.listenerCount

Defined in

node_modules/.pnpm/@types+node@22.2.0/node_modules/@types/node/events.d.ts:868

listeners()

listeners<K>(eventName): Function[]

Returns a copy of the array of listeners for the event named eventName.

server.on('connection', (stream) => {
  console.log('someone connected!');
});
console.log(util.inspect(server.listeners('connection')));
// Prints: [ [Function] ]

Type Parameters

• K

Parameters

• eventName: string | symbol

Returns

Function[]

Since

v0.1.26

Inherited from

EventEmitter.listeners

Defined in

node_modules/.pnpm/@types+node@22.2.0/node_modules/@types/node/events.d.ts:787

networks()

networks(): Promise<Network[]>

Should return all the networks available from the connector. If the connection is already established.

Returns

Promise<Network[]>

Return all the networks added to the connector.

Implementation of

Connector.networks

Defined in

packages/account/src/connectors/fuel-connector.ts:281

off()

off<K>(eventName, listener): this

Alias for emitter.removeListener().

Type Parameters

• K

Parameters

• eventName: string | symbol

• listener

Returns

this

Since

v10.0.0

Inherited from

EventEmitter.off

Defined in

node_modules/.pnpm/@types+node@22.2.0/node_modules/@types/node/events.d.ts:747

on()

on<E, D>(eventName, listener): this

Event listener for the connector.

Type Parameters

• D extends never

Parameters

• eventName: E

The event name to listen

• listener

The listener function

Returns

this

Overrides

EventEmitter.on

Defined in

packages/account/src/connectors/fuel-connector.ts:331

once()

once<K>(eventName, listener): this

Adds a one-time listener function for the event named eventName. The next time eventName is triggered, this listener is removed and then invoked.

server.once('connection', (stream) => {
  console.log('Ah, we have our first user!');
});

Returns a reference to the EventEmitter, so that calls can be chained.

By default, event listeners are invoked in the order they are added. The emitter.prependOnceListener() method can be used as an alternative to add the event listener to the beginning of the listeners array.

import { EventEmitter } from 'node:events';
const myEE = new EventEmitter();
myEE.once('foo', () => console.log('a'));
myEE.prependOnceListener('foo', () => console.log('b'));
myEE.emit('foo');
// Prints:
//   b
//   a

Type Parameters

• K

Parameters

• eventName: string | symbol

The name of the event.

• listener

The callback function

Returns

this

Since

v0.3.0

Inherited from

EventEmitter.once

Defined in

node_modules/.pnpm/@types+node@22.2.0/node_modules/@types/node/events.d.ts:659

ping()

ping(): Promise<boolean>

Should return true if the connector is loaded in less then one second.

Returns

Promise<boolean>

Always true.

Implementation of

Connector.ping

Defined in

packages/account/src/connectors/fuel-connector.ts:100

prependListener()

prependListener<K>(eventName, listener): this

Adds the listener function to the beginning of the listeners array for the event named eventName. No checks are made to see if the listener has already been added. Multiple calls passing the same combination of eventName and listener will result in the listener being added, and called, multiple times.

server.prependListener('connection', (stream) => {
  console.log('someone connected!');
});

Returns a reference to the EventEmitter, so that calls can be chained.

Type Parameters

• K

Parameters

• eventName: string | symbol

The name of the event.

• listener

The callback function

Returns

this

Since

v6.0.0

Inherited from

EventEmitter.prependListener

Defined in

node_modules/.pnpm/@types+node@22.2.0/node_modules/@types/node/events.d.ts:886

prependOnceListener()

prependOnceListener<K>(eventName, listener): this

Adds a one-timelistener function for the event named eventName to the beginning of the listeners array. The next time eventName is triggered, this listener is removed, and then invoked.

server.prependOnceListener('connection', (stream) => {
  console.log('Ah, we have our first user!');
});

Returns a reference to the EventEmitter, so that calls can be chained.

Type Parameters

• K

Parameters

• eventName: string | symbol

The name of the event.

• listener

The callback function

Returns

this

Since

v6.0.0

Inherited from

EventEmitter.prependOnceListener

Defined in

node_modules/.pnpm/@types+node@22.2.0/node_modules/@types/node/events.d.ts:902

rawListeners()

rawListeners<K>(eventName): Function[]

Returns a copy of the array of listeners for the event named eventName, including any wrappers (such as those created by .once()).

import { EventEmitter } from 'node:events';
const emitter = new EventEmitter();
emitter.once('log', () => console.log('log once'));

// Returns a new Array with a function `onceWrapper` which has a property
// `listener` which contains the original listener bound above
const listeners = emitter.rawListeners('log');
const logFnWrapper = listeners[0];

// Logs "log once" to the console and does not unbind the `once` event
logFnWrapper.listener();

// Logs "log once" to the console and removes the listener
logFnWrapper();

emitter.on('log', () => console.log('log persistently'));
// Will return a new Array with a single function bound by `.on()` above
const newListeners = emitter.rawListeners('log');

// Logs "log persistently" twice
newListeners[0]();
emitter.emit('log');

Type Parameters

• K

Parameters

• eventName: string | symbol

Returns

Function[]

Since

v9.4.0

Inherited from

EventEmitter.rawListeners

Defined in

node_modules/.pnpm/@types+node@22.2.0/node_modules/@types/node/events.d.ts:818

removeAllListeners()

removeAllListeners(eventName?): this

Removes all listeners, or those of the specified eventName.

It is bad practice to remove listeners added elsewhere in the code, particularly when the EventEmitter instance was created by some other component or module (e.g. sockets or file streams).

Returns a reference to the EventEmitter, so that calls can be chained.

Parameters

• eventName?: string | symbol

Returns

this

Since

v0.1.26

Inherited from

EventEmitter.removeAllListeners

Defined in

node_modules/.pnpm/@types+node@22.2.0/node_modules/@types/node/events.d.ts:758

removeListener()

removeListener<K>(eventName, listener): this

Removes the specified listener from the listener array for the event named eventName.

const callback = (stream) => {
  console.log('someone connected!');
};
server.on('connection', callback);
// ...
server.removeListener('connection', callback);

removeListener() will remove, at most, one instance of a listener from the listener array. If any single listener has been added multiple times to the listener array for the specified eventName, then removeListener() must be called multiple times to remove each instance.

Once an event is emitted, all listeners attached to it at the time of emitting are called in order. This implies that any removeListener() or removeAllListeners() calls after emitting and before the last listener finishes execution will not remove them fromemit() in progress. Subsequent events behave as expected.

import { EventEmitter } from 'node:events';
class MyEmitter extends EventEmitter {}
const myEmitter = new MyEmitter();

const callbackA = () => {
  console.log('A');
  myEmitter.removeListener('event', callbackB);
};

const callbackB = () => {
  console.log('B');
};

myEmitter.on('event', callbackA);

myEmitter.on('event', callbackB);

// callbackA removes listener callbackB but it will still be called.
// Internal listener array at time of emit [callbackA, callbackB]
myEmitter.emit('event');
// Prints:
//   A
//   B

// callbackB is now removed.
// Internal listener array [callbackA]
myEmitter.emit('event');
// Prints:
//   A

Because listeners are managed using an internal array, calling this will change the position indices of any listener registered after the listener being removed. This will not impact the order in which listeners are called, but it means that any copies of the listener array as returned by the emitter.listeners() method will need to be recreated.

When a single function has been added as a handler multiple times for a single event (as in the example below), removeListener() will remove the most recently added instance. In the example the once('ping') listener is removed:

import { EventEmitter } from 'node:events';
const ee = new EventEmitter();

function pong() {
  console.log('pong');
}

ee.on('ping', pong);
ee.once('ping', pong);
ee.removeListener('ping', pong);

ee.emit('ping');
ee.emit('ping');

Returns a reference to the EventEmitter, so that calls can be chained.

Type Parameters

• K

Parameters

• eventName: string | symbol

• listener

Returns

this

Since

v0.1.26

Inherited from

EventEmitter.removeListener

Defined in

node_modules/.pnpm/@types+node@22.2.0/node_modules/@types/node/events.d.ts:742

selectNetwork()

selectNetwork(_network): Promise<boolean>

Emits

Should start the select network process and return true if the network has change successfully.

networks

Parameters

• _network: Network

Returns

Promise<boolean>

Return true if the network was added successfully

Throws

Error if the network already exists

Implementation of

Connector.selectNetwork

Defined in

packages/account/src/connectors/fuel-connector.ts:272

sendTransaction()

sendTransaction(_address, _transaction): Promise<string>

Should start the send transaction process and return the transaction id submitted to the network.

If the network is not available for the connection it should throw an error to avoid the transaction to be sent to the wrong network and lost.

Parameters

• _address: string

• _transaction: TransactionRequestLike

Returns

Promise<string>

The transaction id

Implementation of

Connector.sendTransaction

Defined in

packages/account/src/connectors/fuel-connector.ts:197

setMaxListeners()

setMaxListeners(n): this

By default EventEmitters will print a warning if more than 10 listeners are added for a particular event. This is a useful default that helps finding memory leaks. The emitter.setMaxListeners() method allows the limit to be modified for this specific EventEmitter instance. The value can be set to Infinity (or 0) to indicate an unlimited number of listeners.

Returns a reference to the EventEmitter, so that calls can be chained.

Parameters

• n: number

Returns

this

Since

v0.3.5

Inherited from

EventEmitter.setMaxListeners

Defined in

node_modules/.pnpm/@types+node@22.2.0/node_modules/@types/node/events.d.ts:768

signMessage()

signMessage(_address, _message): Promise<string>

Should start the sign message process and return the signed message.

Parameters

• _address: string

• _message: string

Returns

Promise<string>

Message signature

Implementation of

Connector.signMessage

Defined in

packages/account/src/connectors/fuel-connector.ts:167

signTransaction()

signTransaction(_address, _transaction): Promise<string>

Should start the sign transaction process and return the signed transaction.

Parameters

• _address: string

• _transaction: TransactionRequestLike

Returns

Promise<string>

Transaction signature

Implementation of

Connector.signTransaction

Defined in

packages/account/src/connectors/fuel-connector.ts:180

version()

version(): Promise<Version>

Should return the current version of the connector and the network version that is compatible.

Returns

Promise<Version>

boolean - connection status.

Implementation of

Connector.version

Defined in

packages/account/src/connectors/fuel-connector.ts:110

addAbortListener()

static addAbortListener(signal, resource): Disposable

Experimental

Listens once to the abort event on the provided signal.

Listening to the abort event on abort signals is unsafe and may lead to resource leaks since another third party with the signal can call e.stopImmediatePropagation(). Unfortunately Node.js cannot change this since it would violate the web standard. Additionally, the original API makes it easy to forget to remove listeners.

This API allows safely using AbortSignals in Node.js APIs by solving these two issues by listening to the event such that stopImmediatePropagation does not prevent the listener from running.

Returns a disposable so that it may be unsubscribed from more easily.

import { addAbortListener } from 'node:events';

function example(signal) {
  let disposable;
  try {
    signal.addEventListener('abort', (e) => e.stopImmediatePropagation());
    disposable = addAbortListener(signal, (e) => {
      // Do something when signal is aborted.
    });
  } finally {
    disposable?.[Symbol.dispose]();
  }
}

Parameters

• signal: AbortSignal

• resource

Returns

Disposable

Disposable that removes the abort listener.

Since

v20.5.0

Inherited from

EventEmitter.addAbortListener

Defined in

node_modules/.pnpm/@types+node@22.2.0/node_modules/@types/node/events.d.ts:437

getEventListeners()

static getEventListeners(emitter, name): Function[]

Returns a copy of the array of listeners for the event named eventName.

For EventEmitters this behaves exactly the same as calling .listeners on the emitter.

For EventTargets this is the only way to get the event listeners for the event target. This is useful for debugging and diagnostic purposes.

import { getEventListeners, EventEmitter } from 'node:events';

{
  const ee = new EventEmitter();
  const listener = () => console.log('Events are fun');
  ee.on('foo', listener);
  console.log(getEventListeners(ee, 'foo')); // [ [Function: listener] ]
}
{
  const et = new EventTarget();
  const listener = () => console.log('Events are fun');
  et.addEventListener('foo', listener);
  console.log(getEventListeners(et, 'foo')); // [ [Function: listener] ]
}

Parameters

• emitter: EventTarget | EventEmitter<DefaultEventMap>

• name: string | symbol

Returns

Function[]

Since

v15.2.0, v14.17.0

Inherited from

EventEmitter.getEventListeners

Defined in

node_modules/.pnpm/@types+node@22.2.0/node_modules/@types/node/events.d.ts:358

getMaxListeners()

static getMaxListeners(emitter): number

Returns the currently set max amount of listeners.

For EventEmitters this behaves exactly the same as calling .getMaxListeners on the emitter.

For EventTargets this is the only way to get the max event listeners for the event target. If the number of event handlers on a single EventTarget exceeds the max set, the EventTarget will print a warning.

import { getMaxListeners, setMaxListeners, EventEmitter } from 'node:events';

{
  const ee = new EventEmitter();
  console.log(getMaxListeners(ee)); // 10
  setMaxListeners(11, ee);
  console.log(getMaxListeners(ee)); // 11
}
{
  const et = new EventTarget();
  console.log(getMaxListeners(et)); // 10
  setMaxListeners(11, et);
  console.log(getMaxListeners(et)); // 11
}

Parameters

• emitter: EventTarget | EventEmitter<DefaultEventMap>

Returns

number

Since

v19.9.0

Inherited from

EventEmitter.getMaxListeners

Defined in

node_modules/.pnpm/@types+node@22.2.0/node_modules/@types/node/events.d.ts:387

listenerCount()

static listenerCount(emitter, eventName): number

A class method that returns the number of listeners for the given eventName registered on the given emitter.

import { EventEmitter, listenerCount } from 'node:events';

const myEmitter = new EventEmitter();
myEmitter.on('event', () => {});
myEmitter.on('event', () => {});
console.log(listenerCount(myEmitter, 'event'));
// Prints: 2

Parameters

• emitter: EventEmitter<DefaultEventMap>

The emitter to query

• eventName: string | symbol

The event name

Returns

number

Since

v0.9.12

Deprecated

Since v3.2.0 - Use listenerCount instead.

Inherited from

EventEmitter.listenerCount

Defined in

node_modules/.pnpm/@types+node@22.2.0/node_modules/@types/node/events.d.ts:330

on()

on(emitter, eventName, options)

static on(emitter, eventName, options?): AsyncIterableIterator<any[]>

import { on, EventEmitter } from 'node:events';
import process from 'node:process';

const ee = new EventEmitter();

// Emit later on
process.nextTick(() => {
  ee.emit('foo', 'bar');
  ee.emit('foo', 42);
});

for await (const event of on(ee, 'foo')) {
  // The execution of this inner block is synchronous and it
  // processes one event at a time (even with await). Do not use
  // if concurrent execution is required.
  console.log(event); // prints ['bar'] [42]
}
// Unreachable here

Returns an AsyncIterator that iterates eventName events. It will throw if the EventEmitter emits 'error'. It removes all listeners when exiting the loop. The value returned by each iteration is an array composed of the emitted event arguments.

An AbortSignal can be used to cancel waiting on events:

import { on, EventEmitter } from 'node:events';
import process from 'node:process';

const ac = new AbortController();

(async () => {
  const ee = new EventEmitter();

  // Emit later on
  process.nextTick(() => {
    ee.emit('foo', 'bar');
    ee.emit('foo', 42);
  });

  for await (const event of on(ee, 'foo', { signal: ac.signal })) {
    // The execution of this inner block is synchronous and it
    // processes one event at a time (even with await). Do not use
    // if concurrent execution is required.
    console.log(event); // prints ['bar'] [42]
  }
  // Unreachable here
})();

process.nextTick(() => ac.abort());

Use the close option to specify an array of event names that will end the iteration:

import { on, EventEmitter } from 'node:events';
import process from 'node:process';

const ee = new EventEmitter();

// Emit later on
process.nextTick(() => {
  ee.emit('foo', 'bar');
  ee.emit('foo', 42);
  ee.emit('close');
});

for await (const event of on(ee, 'foo', { close: ['close'] })) {
  console.log(event); // prints ['bar'] [42]
}
// the loop will exit after 'close' is emitted
console.log('done'); // prints 'done'

Parameters

• emitter: EventEmitter<DefaultEventMap>

• eventName: string | symbol

• options?: StaticEventEmitterIteratorOptions

Returns

AsyncIterableIterator<any[]>

An AsyncIterator that iterates eventName events emitted by the emitter

Since

v13.6.0, v12.16.0

Inherited from

EventEmitter.on

Defined in

node_modules/.pnpm/@types+node@22.2.0/node_modules/@types/node/events.d.ts:303

on(emitter, eventName, options)

static on(emitter, eventName, options?): AsyncIterableIterator<any[]>

Parameters

• emitter: EventTarget

• eventName: string

• options?: StaticEventEmitterIteratorOptions

Returns

AsyncIterableIterator<any[]>

Inherited from

EventEmitter.on

Defined in

node_modules/.pnpm/@types+node@22.2.0/node_modules/@types/node/events.d.ts:308

once()

once(emitter, eventName, options)

static once(emitter, eventName, options?): Promise<any[]>

Creates a Promise that is fulfilled when the EventEmitter emits the given event or that is rejected if the EventEmitter emits 'error' while waiting. The Promise will resolve with an array of all the arguments emitted to the given event.

This method is intentionally generic and works with the web platform EventTarget interface, which has no special'error' event semantics and does not listen to the 'error' event.

import { once, EventEmitter } from 'node:events';
import process from 'node:process';

const ee = new EventEmitter();

process.nextTick(() => {
  ee.emit('myevent', 42);
});

const [value] = await once(ee, 'myevent');
console.log(value);

const err = new Error('kaboom');
process.nextTick(() => {
  ee.emit('error', err);
});

try {
  await once(ee, 'myevent');
} catch (err) {
  console.error('error happened', err);
}

The special handling of the 'error' event is only used when events.once() is used to wait for another event. If events.once() is used to wait for the 'error' event itself, then it is treated as any other kind of event without special handling:

import { EventEmitter, once } from 'node:events';

const ee = new EventEmitter();

once(ee, 'error')
  .then(([err]) => console.log('ok', err.message))
  .catch((err) => console.error('error', err.message));

ee.emit('error', new Error('boom'));

// Prints: ok boom

An AbortSignal can be used to cancel waiting for the event:

import { EventEmitter, once } from 'node:events';

const ee = new EventEmitter();
const ac = new AbortController();

async function foo(emitter, event, signal) {
  try {
    await once(emitter, event, { signal });
    console.log('event emitted!');
  } catch (error) {
    if (error.name === 'AbortError') {
      console.error('Waiting for the event was canceled!');
    } else {
      console.error('There was an error', error.message);
    }
  }
}

foo(ee, 'foo', ac.signal);
ac.abort(); // Abort waiting for the event
ee.emit('foo'); // Prints: Waiting for the event was canceled!

Parameters

• emitter: EventEmitter<DefaultEventMap>

• eventName: string | symbol

• options?: StaticEventEmitterOptions

Returns

Promise<any[]>

Since

v11.13.0, v10.16.0

Inherited from

EventEmitter.once

Defined in

node_modules/.pnpm/@types+node@22.2.0/node_modules/@types/node/events.d.ts:217

once(emitter, eventName, options)

static once(emitter, eventName, options?): Promise<any[]>

Parameters

• emitter: EventTarget

• eventName: string

• options?: StaticEventEmitterOptions

Returns

Promise<any[]>

Inherited from

EventEmitter.once

Defined in

node_modules/.pnpm/@types+node@22.2.0/node_modules/@types/node/events.d.ts:222

setMaxListeners()

static setMaxListeners(n?, ...eventTargets?): void

import { setMaxListeners, EventEmitter } from 'node:events';

const target = new EventTarget();
const emitter = new EventEmitter();

setMaxListeners(5, target, emitter);

Parameters

• n?: number

A non-negative number. The maximum number of listeners per EventTarget event.

• ...eventTargets?: (EventTarget | EventEmitter<DefaultEventMap>)[]

Returns

void

Since

v15.4.0

Inherited from

EventEmitter.setMaxListeners

Defined in

node_modules/.pnpm/@types+node@22.2.0/node_modules/@types/node/events.d.ts:402

Account

Address

Contract

Interfaces

Program

Script

Utils

Class: abstract FuelConnector ​

Extends ​

Extended by ​

Implements ​

Constructors ​

new FuelConnector() ​

Parameters ​

Returns ​

Inherited from ​

Defined in ​

Properties ​

connected ​

Defined in ​

events ​

Defined in ​

installed ​

Defined in ​

metadata ​

Defined in ​

name ​

Defined in ​

captureRejectionSymbol ​

Since ​

Inherited from ​

Defined in ​

captureRejections ​

Since ​

Inherited from ​

Defined in ​

defaultMaxListeners ​

Since ​

Inherited from ​

Defined in ​

errorMonitor ​

Since ​

Inherited from ​

Defined in ​

Methods ​

[captureRejectionSymbol]()? ​

Type Parameters ​

Parameters ​

Returns ​

Inherited from ​

Defined in ​

accounts() ​

Returns ​

Implementation of ​

Defined in ​

addABI() ​

Parameters ​

Returns ​

Implementation of ​

Defined in ​

addAsset() ​

Parameters ​

Returns ​

Throws ​

Implementation of ​

Defined in ​

addAssets() ​

Parameters ​

Returns ​

Throws ​

Implementation of ​

Defined in ​

addListener() ​

Type Parameters ​

Parameters ​

Returns ​

Since ​

Inherited from ​

Defined in ​

addNetwork() ​

Class: `abstract` FuelConnector

Extends

Extended by

Implements

Constructors

new FuelConnector()

Parameters

Returns

Inherited from

Defined in

Properties

connected

Defined in

events

Defined in

installed

Defined in

metadata

Defined in

name

Defined in

captureRejectionSymbol

Since

Inherited from

Defined in

captureRejections

Since

Inherited from

Defined in

defaultMaxListeners

Since

Inherited from

Defined in

errorMonitor

Since

Inherited from

Defined in

Methods

[captureRejectionSymbol]()?

Type Parameters

Parameters

Returns

Inherited from

Defined in

accounts()

Returns

Implementation of

Defined in

addABI()

Parameters

Returns

Implementation of

Defined in

addAsset()

Parameters

Returns

Throws

Implementation of

Defined in

addAssets()

Parameters

Returns

Throws

Implementation of

Defined in

addListener()

Type Parameters

Parameters

Returns

Since

Inherited from

Defined in

addNetwork()

Parameters

Returns

Throws

Implementation of

Defined in

assets()

Returns