Current File : //usr/share/doc/node-undici/api/MockClient.md
# Class: MockClient
Extends: `undici.Client`
A mock client class that implements the same api as [MockPool](MockPool.md).
## `new MockClient(origin, [options])`
Arguments:
* **origin** `string` - It should only include the **protocol, hostname, and port**.
* **options** `MockClientOptions` - It extends the `Client` options.
Returns: `MockClient`
### Parameter: `MockClientOptions`
Extends: `ClientOptions`
* **agent** `Agent` - the agent to associate this MockClient with.
### Example - Basic MockClient instantiation
We can use MockAgent to instantiate a MockClient ready to be used to intercept specified requests. It will not do anything until registered as the agent to use and any mock request are registered.
```js
import { MockAgent } from 'undici'
// Connections must be set to 1 to return a MockClient instance
const mockAgent = new MockAgent({ connections: 1 })
const mockClient = mockAgent.get('http://localhost:3000')
```
## Instance Methods
### `MockClient.intercept(options)`
Implements: [`MockPool.intercept(options)`](MockPool.md#mockpoolinterceptoptions)
### `MockClient.close()`
Implements: [`MockPool.close()`](MockPool.md#mockpoolclose)
### `MockClient.dispatch(options, handlers)`
Implements [`Dispatcher.dispatch(options, handlers)`](Dispatcher.md#dispatcherdispatchoptions-handler).
### `MockClient.request(options[, callback])`
See [`Dispatcher.request(options [, callback])`](Dispatcher.md#dispatcherrequestoptions-callback).
#### Example - MockClient request
```js
import { MockAgent } from 'undici'
const mockAgent = new MockAgent({ connections: 1 })
const mockClient = mockAgent.get('http://localhost:3000')
mockClient.intercept({ path: '/foo' }).reply(200, 'foo')
const {
statusCode,
body
} = await mockClient.request({
origin: 'http://localhost:3000',
path: '/foo',
method: 'GET'
})
console.log('response received', statusCode) // response received 200
for await (const data of body) {
console.log('data', data.toString('utf8')) // data foo
}
```
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