grafana/docs/sources/packages_api/runtime/echosrv.md

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title = "EchoSrv" keywords = ["grafana","documentation","sdk","@grafana/runtime"] type = "docs" +++

EchoSrv interface

Used to send events to all the registered backends. This should be accessed via the getEchoSrv() function. Will, by default, flush events to the backends every 10s or when the flush function is triggered.

Signature

export interface EchoSrv 

Import

import { EchoSrv } from '@grafana/runtime';

Methods

Method	Description
addBackend(backend)	Add a new echo backend to the list of backends that will receive events.
addEvent(event, meta)	Call this to add event that will be sent to the echo backends upon next flush.
flush()	Call this to flush current events to the echo backends.

addBackend method

Add a new echo backend to the list of backends that will receive events.

Signature

addBackend(backend: EchoBackend): void;

Parameters

Parameter	Type	Description
backend	EchoBackend

Returns:

void

addEvent method

Call this to add event that will be sent to the echo backends upon next flush.

Signature

addEvent<T extends EchoEvent>(event: Omit<T, 'meta'>, meta?: {}): void;

Parameters

Parameter	Type	Description
event	Omit<T, 'meta'>	Object containing event information.
meta	{}	Object that will extend/override the default meta object.

Returns:

void

flush method

Call this to flush current events to the echo backends.

Signature

flush(): void;

Returns:

void