BackendSrv interface

Used to communicate via http(s) to a remote backend such as the Grafana backend, a datasource etc. The BackendSrv is using the Fetch API under the hood to handle all the communication.

The request function can be used to perform a remote call by specifying a BackendSrvRequest. To make the BackendSrv a bit easier to use we have added a couple of shorthand functions that will use default values executing the request.

Signature

export interface BackendSrv 

Import

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

Remarks

By default, Grafana displays an error message alert if the remote call fails. To prevent this from happening showErrorAlert = true on the options object.

Methods

Method	Description
datasourceRequest(options)	Special function used to communicate with datasources that will emit core events that the Grafana QueryInspector and QueryEditor is listening for to be able to display datasource query information. Can be skipped by adding option.silent when initializing the request.
delete(url, data)
fetch(options)	Observable http request interface
get(url, params, requestId)
patch(url, data)
post(url, data)
put(url, data)
request(options)

datasourceRequest method

Special function used to communicate with datasources that will emit core events that the Grafana QueryInspector and QueryEditor is listening for to be able to display datasource query information. Can be skipped by adding option.silent when initializing the request.

Signature

datasourceRequest<T = any>(options: BackendSrvRequest): Promise<FetchResponse<T>>;

Parameters

Parameter	Type	Description
options	BackendSrvRequest

Returns:

Promise<FetchResponse<T>>

delete method

Signature

delete(url: string, data?: any): Promise<any>;

Parameters

Parameter	Type	Description
url	string
data	any

Returns:

Promise<any>

fetch method

Observable http request interface

Signature

fetch<T>(options: BackendSrvRequest): Observable<FetchResponse<T>>;

Parameters

Parameter	Type	Description
options	BackendSrvRequest

Returns:

Observable<FetchResponse<T>>

get method

Signature

get(url: string, params?: any, requestId?: string): Promise<any>;

Parameters

Parameter	Type	Description
url	string
params	any
requestId	string

Returns:

Promise<any>

patch method

Signature

patch(url: string, data?: any): Promise<any>;

Parameters

Parameter	Type	Description
url	string
data	any

Returns:

Promise<any>

post method

Signature

post(url: string, data?: any): Promise<any>;

Parameters

Parameter	Type	Description
url	string
data	any

Returns:

Promise<any>

put method

Signature

put(url: string, data?: any): Promise<any>;

Parameters

Parameter	Type	Description
url	string
data	any

Returns:

Promise<any>

request method

Signature

request(options: BackendSrvRequest): Promise<any>;

Parameters

Parameter	Type	Description
options	BackendSrvRequest

Returns:

Promise<any>