+++
# -----------------------------------------------------------------------
# Do not edit this file. It is automatically generated by API Documenter.
# -----------------------------------------------------------------------
title = "EchoSrv"
keywords = ["grafana","documentation","sdk","@grafana/runtime"]
type = "docs"
draft = true
+++
## EchoSrv interface
Signature
```typescript
export interface EchoSrv
```
Import
```typescript
import { EchoSrv } from '@grafana/runtime';
```
Methods
| Method | Description |
| --- | --- |
| [addBackend(backend)](#addbackend-method) | |
| [addEvent(event, meta)](#addevent-method) | |
| [flush()](#flush-method) | |
### addBackend method
Signature
```typescript
addBackend(backend: EchoBackend): void;
```
Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| backend | EchoBackend | |
Returns:
`void`
### addEvent method
Signature
```typescript
addEvent(event: Omit, meta?: {}): void;
```
Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| event | Omit<T, 'meta'> | |
| meta | {} | |
Returns:
`void`
### flush method
Signature
```typescript
flush(): void;
```
Returns:
`void`