# yii2\extensions\psrbridge\adapter

> 3 classes of the yii2\extensions\psrbridge\adapter namespace.

[API reference](/docs/api/index.md) › [PSR bridge](/docs/extensions/psr-bridge/reference/index.md) › adapter

## Classes

| Class | Summary |
| --- | --- |
| [`RangeStream`](/docs/extensions/psr-bridge/reference/adapter/rangestream/index.md) final | Read-only PSR-7 stream limited to a byte range of an underlying stream. |
| [`ResponseAdapter`](/docs/extensions/psr-bridge/reference/adapter/responseadapter/index.md) final | Adapts Yii responses to PSR-7 responses. |
| [`ServerRequestAdapter`](/docs/extensions/psr-bridge/reference/adapter/serverrequestadapter/index.md) final | Adapts PSR-7 server requests to Yii request expectations. |