# Class: AsyncDeflate Asynchronous streaming DEFLATE compression ## Hierarchy * **AsyncDeflate** ## Index ### Constructors * [constructor](asyncdeflate.md#constructor) ### Properties * [ondata](asyncdeflate.md#ondata) * [terminate](asyncdeflate.md#terminate) ### Methods * [push](asyncdeflate.md#push) ## Constructors ### constructor \+ **new AsyncDeflate**(`opts`: [DeflateOptions](../interfaces/deflateoptions.md), `cb?`: [AsyncFlateStreamHandler](../README.md#asyncflatestreamhandler)): [AsyncDeflate](asyncdeflate.md) Creates an asynchronous DEFLATE stream #### Parameters: Name | Type | Description | ------ | ------ | ------ | `opts` | [DeflateOptions](../interfaces/deflateoptions.md) | The compression options | `cb?` | [AsyncFlateStreamHandler](../README.md#asyncflatestreamhandler) | The callback to call whenever data is deflated | **Returns:** [AsyncDeflate](asyncdeflate.md) \+ **new AsyncDeflate**(`cb?`: [AsyncFlateStreamHandler](../README.md#asyncflatestreamhandler)): [AsyncDeflate](asyncdeflate.md) Creates an asynchronous DEFLATE stream #### Parameters: Name | Type | Description | ------ | ------ | ------ | `cb?` | [AsyncFlateStreamHandler](../README.md#asyncflatestreamhandler) | The callback to call whenever data is deflated | **Returns:** [AsyncDeflate](asyncdeflate.md) ## Properties ### ondata • **ondata**: [AsyncFlateStreamHandler](../README.md#asyncflatestreamhandler) The handler to call whenever data is available ___ ### terminate • **terminate**: [AsyncTerminable](../interfaces/asyncterminable.md) A method to terminate the stream's internal worker. Subsequent calls to push() will silently fail. ## Methods ### push ▸ **push**(`chunk`: Uint8Array, `final?`: boolean): void Pushes a chunk to be deflated #### Parameters: Name | Type | Description | ------ | ------ | ------ | `chunk` | Uint8Array | The chunk to push | `final?` | boolean | Whether this is the last chunk | **Returns:** void