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YouTube.js/docs/api/classes/Player.md
2026-05-12 23:01:15 -03:00

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[youtubei.js](../README.md) / Player
# Class: Player
Defined in: [src/core/Player.ts:38](https://github.com/LuanRT/YouTube.js/blob/853a36307b5d644ada14dcb1216c2c22c2ae7b73/src/core/Player.ts#L38)
Represents YouTube's player script. This is required to decipher signatures.
## Constructors
### Constructor
> **new Player**(`player_id`, `signature_timestamp`, `data?`): `Player`
Defined in: [src/core/Player.ts:41](https://github.com/LuanRT/YouTube.js/blob/853a36307b5d644ada14dcb1216c2c22c2ae7b73/src/core/Player.ts#L41)
#### Parameters
##### player\_id
`string`
##### signature\_timestamp
`number`
##### data?
[`BuildScriptResult`](../youtubei.js/namespaces/Types/interfaces/BuildScriptResult.md)
#### Returns
`Player`
## Properties
### data?
> `optional` **data**: [`BuildScriptResult`](../youtubei.js/namespaces/Types/interfaces/BuildScriptResult.md)
Defined in: [src/core/Player.ts:41](https://github.com/LuanRT/YouTube.js/blob/853a36307b5d644ada14dcb1216c2c22c2ae7b73/src/core/Player.ts#L41)
***
### player\_id
> **player\_id**: `string`
Defined in: [src/core/Player.ts:41](https://github.com/LuanRT/YouTube.js/blob/853a36307b5d644ada14dcb1216c2c22c2ae7b73/src/core/Player.ts#L41)
***
### po\_token?
> `optional` **po\_token**: `string`
Defined in: [src/core/Player.ts:39](https://github.com/LuanRT/YouTube.js/blob/853a36307b5d644ada14dcb1216c2c22c2ae7b73/src/core/Player.ts#L39)
***
### signature\_timestamp
> **signature\_timestamp**: `number`
Defined in: [src/core/Player.ts:41](https://github.com/LuanRT/YouTube.js/blob/853a36307b5d644ada14dcb1216c2c22c2ae7b73/src/core/Player.ts#L41)
## Accessors
### url
#### Get Signature
> **get** **url**(): `string`
Defined in: [src/core/Player.ts:285](https://github.com/LuanRT/YouTube.js/blob/853a36307b5d644ada14dcb1216c2c22c2ae7b73/src/core/Player.ts#L285)
##### Returns
`string`
***
### LIBRARY\_VERSION
#### Get Signature
> **get** `static` **LIBRARY\_VERSION**(): `number`
Defined in: [src/core/Player.ts:289](https://github.com/LuanRT/YouTube.js/blob/853a36307b5d644ada14dcb1216c2c22c2ae7b73/src/core/Player.ts#L289)
##### Returns
`number`
## Methods
### cache()
> **cache**(`cache?`): `Promise`\<`void`\>
Defined in: [src/core/Player.ts:271](https://github.com/LuanRT/YouTube.js/blob/853a36307b5d644ada14dcb1216c2c22c2ae7b73/src/core/Player.ts#L271)
#### Parameters
##### cache?
[`ICache`](../youtubei.js/namespaces/Types/interfaces/ICache.md)
#### Returns
`Promise`\<`void`\>
***
### decipher()
> **decipher**(`url?`, `signature_cipher?`, `cipher?`, `this_response_nsig_cache?`): `Promise`\<`string`\>
Defined in: [src/core/Player.ts:129](https://github.com/LuanRT/YouTube.js/blob/853a36307b5d644ada14dcb1216c2c22c2ae7b73/src/core/Player.ts#L129)
#### Parameters
##### url?
`string`
##### signature\_cipher?
`string`
##### cipher?
`string`
##### this\_response\_nsig\_cache?
`Map`\<`string`, `string`\>
#### Returns
`Promise`\<`string`\>
***
### create()
> `static` **create**(`cache`, `fetch?`, `po_token?`, `player_id?`): `Promise`\<`Player`\>
Defined in: [src/core/Player.ts:43](https://github.com/LuanRT/YouTube.js/blob/853a36307b5d644ada14dcb1216c2c22c2ae7b73/src/core/Player.ts#L43)
#### Parameters
##### cache
[`ICache`](../youtubei.js/namespaces/Types/interfaces/ICache.md) | `undefined`
##### fetch?
\{(`input`, `init?`): `Promise`\<`Response`\>; (`input`, `init?`): `Promise`\<`Response`\>; \}
##### po\_token?
`string`
##### player\_id?
`string`
#### Returns
`Promise`\<`Player`\>
***
### fromCache()
> `static` **fromCache**(`cache`, `player_id`): `Promise`\<`Player` \| `null`\>
Defined in: [src/core/Player.ts:244](https://github.com/LuanRT/YouTube.js/blob/853a36307b5d644ada14dcb1216c2c22c2ae7b73/src/core/Player.ts#L244)
#### Parameters
##### cache
[`ICache`](../youtubei.js/namespaces/Types/interfaces/ICache.md)
##### player\_id
`string`
#### Returns
`Promise`\<`Player` \| `null`\>
***
### fromSource()
> `static` **fromSource**(`player_id`, `options`): `Promise`\<`Player`\>
Defined in: [src/core/Player.ts:265](https://github.com/LuanRT/YouTube.js/blob/853a36307b5d644ada14dcb1216c2c22c2ae7b73/src/core/Player.ts#L265)
#### Parameters
##### player\_id
`string`
##### options
`PlayerInitializationOptions`
#### Returns
`Promise`\<`Player`\>