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youtubei.js / Session

Class: Session

Represents an InnerTube session. This holds all the data needed to make requests to YouTube.

Extends

  • EventEmitter

Constructors

new Session()

new Session(context, api_key, api_version, account_index, player?, cookie?, fetch?, cache?, po_token?): Session

Parameters

• context: Context

• api_key: string

• api_version: string

• account_index: number

• player?: Player

• cookie?: string

• fetch?

• cache?: ICache

• po_token?: string

Returns

Session

Overrides

EventEmitter.constructor

Defined in

src/core/Session.ts:228

Properties

account_index

account_index: number

Defined in

src/core/Session.ts:225


actions

actions: Actions

Defined in

src/core/Session.ts:221


api_version

api_version: string

Defined in

src/core/Session.ts:224


cache?

optional cache: ICache

Defined in

src/core/Session.ts:222


context

context: Context

Defined in

src/core/Session.ts:216


http

http: HTTPClient

Defined in

src/core/Session.ts:219


key

key: string

Defined in

src/core/Session.ts:223


logged_in

logged_in: boolean

Defined in

src/core/Session.ts:220


oauth

oauth: OAuth2

Defined in

src/core/Session.ts:218


player?

optional player: Player

Defined in

src/core/Session.ts:217


po_token?

optional po_token: string

Defined in

src/core/Session.ts:226

Accessors

client_name

get client_name(): string

Returns

string

Defined in

src/core/Session.ts:571


client_version

get client_version(): string

Returns

string

Defined in

src/core/Session.ts:567


lang

get lang(): string

Returns

string

Defined in

src/core/Session.ts:575

Methods

addEventListener()

addEventListener(type, callback, options?): void

Appends an event listener for events whose type attribute value is type. The callback argument sets the callback that will be invoked when the event is dispatched.

The options argument sets listener-specific options. For compatibility this can be a boolean, in which case the method behaves exactly as if the value was specified as options's capture.

When set to true, options's capture prevents callback from being invoked when the event's eventPhase attribute value is BUBBLING_PHASE. When false (or not present), callback will not be invoked when event's eventPhase attribute value is CAPTURING_PHASE. Either way, callback will be invoked if event's eventPhase attribute value is AT_TARGET.

When set to true, options's passive indicates that the callback will not cancel the event by invoking preventDefault(). This is used to enable performance optimizations described in § 2.8 Observing event listeners.

When set to true, options's once indicates that the callback will only be invoked once after which the event listener will be removed.

If an AbortSignal is passed for options's signal, then the event listener will be removed when signal is aborted.

The event listener is appended to target's event listener list and is not appended if it has the same type, callback, and capture.

MDN Reference

Parameters

• type: string

• callback: null | EventListenerOrEventListenerObject

• options?: boolean | AddEventListenerOptions

Returns

void

Inherited from

EventEmitter.addEventListener

Defined in

node_modules/typescript/lib/lib.dom.d.ts:8256


dispatchEvent()

dispatchEvent(event): boolean

Dispatches a synthetic event event to target and returns true if either event's cancelable attribute value is false or its preventDefault() method was not invoked, and false otherwise.

MDN Reference

Parameters

• event: Event

Returns

boolean

Inherited from

EventEmitter.dispatchEvent

Defined in

node_modules/typescript/lib/lib.dom.d.ts:8262


emit()

emit(type, ...args): void

Parameters

• type: string

• ...args: any[]

Returns

void

Inherited from

EventEmitter.emit

Defined in

src/utils/EventEmitterLike.ts:10


off()

off(type, listener): void

Parameters

• type: string

• listener

Returns

void

Inherited from

EventEmitter.off

Defined in

src/utils/EventEmitterLike.ts:40


on()

on(type, listener)

on(type, listener): void

Parameters

• type: "auth"

• listener: OAuth2AuthEventHandler

Returns

void

Overrides

EventEmitter.on

Defined in

src/core/Session.ts:243

on(type, listener)

on(type, listener): void

Parameters

• type: "auth-pending"

• listener: OAuth2AuthPendingEventHandler

Returns

void

Overrides

EventEmitter.on

Defined in

src/core/Session.ts:244

on(type, listener)

on(type, listener): void

Parameters

• type: "auth-error"

• listener: OAuth2AuthErrorEventHandler

Returns

void

Overrides

EventEmitter.on

Defined in

src/core/Session.ts:245

on(type, listener)

on(type, listener): void

Parameters

• type: "update-credentials"

• listener: OAuth2AuthEventHandler

Returns

void

Overrides

EventEmitter.on

Defined in

src/core/Session.ts:246


once()

once(type, listener)

once(type, listener): void

Parameters

• type: "auth"

• listener: OAuth2AuthEventHandler

Returns

void

Overrides

EventEmitter.once

Defined in

src/core/Session.ts:252

once(type, listener)

once(type, listener): void

Parameters

• type: "auth-pending"

• listener: OAuth2AuthPendingEventHandler

Returns

void

Overrides

EventEmitter.once

Defined in

src/core/Session.ts:253

once(type, listener)

once(type, listener): void

Parameters

• type: "auth-error"

• listener: OAuth2AuthErrorEventHandler

Returns

void

Overrides

EventEmitter.once

Defined in

src/core/Session.ts:254


removeEventListener()

removeEventListener(type, callback, options?): void

Removes the event listener in target's event listener list with the same type, callback, and options.

MDN Reference

Parameters

• type: string

• callback: null | EventListenerOrEventListenerObject

• options?: boolean | EventListenerOptions

Returns

void

Inherited from

EventEmitter.removeEventListener

Defined in

node_modules/typescript/lib/lib.dom.d.ts:8268


signIn()

signIn(credentials?): Promise<void>

Parameters

• credentials?: OAuth2Tokens

Returns

Promise<void>

Defined in

src/core/Session.ts:534


signOut()

signOut(): Promise<undefined | Response>

Signs out of the current account and revokes the credentials.

Returns

Promise<undefined | Response>

Defined in

src/core/Session.ts:557


create()

static create(options): Promise<Session>

Parameters

• options: SessionOptions = {}

Returns

Promise<Session>

Defined in

src/core/Session.ts:260


fromCache()

static fromCache(cache, session_args): Promise<null | SessionData>

Retrieves session data from cache.

Parameters

• cache: ICache

A valid cache implementation.

• session_args: SessionArgs

User provided session arguments.

Returns

Promise<null | SessionData>

Defined in

src/core/Session.ts:290


getSessionData()

static getSessionData(lang, location, account_index, visitor_data, enable_safety_mode, generate_session_locally, device_category, client_name, tz, fetch, on_behalf_of_user?, cache?, enable_session_cache?, po_token?): Promise<object>

Parameters

• lang: string = ''

• location: string = ''

• account_index: number = 0

• visitor_data: string = ''

• enable_safety_mode: boolean = false

• generate_session_locally: boolean = false

• device_category: DeviceCategory = 'desktop'

• client_name: ClientType = ClientType.WEB

• tz: string = ...

• fetch = Platform.shim.fetch

• on_behalf_of_user?: string

• cache?: ICache

• enable_session_cache?: boolean = true

• po_token?: string

Returns

Promise<object>

account_index

account_index: number

api_key

api_key: string

api_version

api_version: string

context

context: Context

Defined in

src/core/Session.ts:326

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Last Updated:: 3/25/25, 8:08 PM
Contributors: EdamAme-x