An RxJs wrapper around the \[\[api\]\].
*__example__*: ```javascript
import RxApi from '@polkadot/api';
import WsProvider from '@polkadot/api-provider/ws';
const provider = new WsProvider('http://127.0.0.1:9944');
const rxapi = new RxApi(provider);
```
# Hierarchy
**RxApi**
# Implements
* `object` & `object`
# Constructors
## constructor
⊕ **new RxApi**(provider?: *`ProviderInterface`*): [RxApi](_index_.rxapi.md)
*Defined in [index.ts:43](https://github.com/polkadot-js/api/blob/5219cf1/packages/api-rx/src/index.ts#L43)*
**Parameters:**
| Param | Type | Default value | Description |
| ------ | ------ | ------ | ------ |
| `Default value` provider | `ProviderInterface` | new Ws(defaults.WS_URL) | An API provider using HTTP or WebSocket |
**Returns:** [RxApi](_index_.rxapi.md)
___
# Properties
## author
**● author**: *[RxApiInterface$Section](../modules/_types_d_.md#rxapiinterface_section)*
*Defined in [index.ts:40](https://github.com/polkadot-js/api/blob/5219cf1/packages/api-rx/src/index.ts#L40)*
___
## chain
**● chain**: *[RxApiInterface$Section](../modules/_types_d_.md#rxapiinterface_section)*
*Defined in [index.ts:41](https://github.com/polkadot-js/api/blob/5219cf1/packages/api-rx/src/index.ts#L41)*
___
## state
**● state**: *[RxApiInterface$Section](../modules/_types_d_.md#rxapiinterface_section)*
*Defined in [index.ts:42](https://github.com/polkadot-js/api/blob/5219cf1/packages/api-rx/src/index.ts#L42)*
___
## system
**● system**: *[RxApiInterface$Section](../modules/_types_d_.md#rxapiinterface_section)*
*Defined in [index.ts:43](https://github.com/polkadot-js/api/blob/5219cf1/packages/api-rx/src/index.ts#L43)*
___
# Methods
## isConnected
▸ **isConnected**(): `BehaviorSubject`<`boolean`>
*Defined in [index.ts:62](https://github.com/polkadot-js/api/blob/5219cf1/packages/api-rx/src/index.ts#L62)*
**Returns:** `BehaviorSubject`<`boolean`>
___