api/docs/api-provider/interfaces/providerinterface.md

Polkadot JS API > ProviderInterface

Interface: ProviderInterface

Hierarchy

ProviderInterface

Implemented by

• HttpProvider

Index

Methods

• isConnected
• on
• send
• subscribe
• unsubscribe

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Methods

isConnected

▸ isConnected(): boolean

Defined in types.d.ts:45

Returns: boolean

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on

▸ on(type: ProviderInterface$Emitted, sub: ProviderInterface$EmitCb): void

Defined in types.d.ts:46

Parameters:

Param	Type
type	ProviderInterface$Emitted
sub	ProviderInterface$EmitCb

Returns: void

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send

▸ send(method: string, params: Array<any>): Promise<any>

Defined in types.d.ts:47

Parameters:

Param	Type
method	string
params	Array<any>

Returns: Promise<any>

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subscribe

▸ subscribe(type: string, method: string, params: Array<any>, cb: ProviderInterface$Callback): Promise<number>

Defined in types.d.ts:48

Parameters:

Param	Type
type	string
method	string
params	Array<any>
cb	ProviderInterface$Callback

Returns: Promise<number>

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unsubscribe

▸ unsubscribe(type: string, method: string, id: number): Promise<boolean>

Defined in types.d.ts:49

Parameters:

Param	Type
type	string
method	string
id	number

Returns: Promise<boolean>

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