name: Extrinsic

description: Representation of an Extrinsic in the system. It contains the actual call, (optional) signature and encodes with an actual length prefix

https://github.com/paritytech/wiki/blob/master/Extrinsic.md#the-extrinsic-format-for-node.

Can be:

  • signed, to create a transaction
  • left as is, to create an inherent

Type parameters

S : ConstructorDef

T : object

V : object

E : object

Hierarchy

↳ Struct

↳ Extrinsic

Implements

Constructors

constructor

⊕ new Extrinsic(value?: ExtrinsicValue | AnyU8a): Extrinsic

Overrides Struct.constructor

Defined in Extrinsic.ts:36

Parameters:

Name Type
Optional value ExtrinsicValue | AnyU8a

Returns: Extrinsic

Properties

__@toStringTag

● __@toStringTag: string

Inherited from Map.[Symbol.toStringTag]

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es2015.symbol.wellknown.d.ts:130

size

● size: number

Inherited from Map.size

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es2015.collection.d.ts:28

Accessors

Type

getType(): E

Inherited from Struct.Type

Defined in codec/Struct.ts:133

description: Returns the Type description to sthe structure

Returns: E

args

getargs(): Array<Codec>

Defined in Extrinsic.ts:69

description: The arguments passed to for the call, exposes args so it is compatible with Method

Returns: Array<Codec>

callIndex

getcallIndex(): Uint8Array

Defined in Extrinsic.ts:76

description: The actual [sectionIndex, methodIndex] as used in the Method

Returns: Uint8Array

data

getdata(): Uint8Array

Defined in Extrinsic.ts:83

description: The actual data for the Method

Returns: Uint8Array

encodedLength

getencodedLength(): number

Overrides Struct.encodedLength

Defined in Extrinsic.ts:90

description: The length of the value when encoded as a Uint8Array

Returns: number

hash

gethash(): Hash

Defined in Extrinsic.ts:99

description: Convernience function, encodes the extrinsic and returns the actual hash

Returns: Hash

isSigned

getisSigned(): boolean

Defined in Extrinsic.ts:108

description: true id the extrinsic is signed

Returns: boolean

length

getlength(): number

Defined in Extrinsic.ts:115

description: The length of the encoded value

Returns: number

meta

getmeta(): FunctionMetadata

Defined in Extrinsic.ts:122

description: The FunctionMetadata that describes the extrinsic

Returns: FunctionMetadata

method

getmethod(): Method

Defined in Extrinsic.ts:129

description: The Method this extrinsic wraps

Returns: Method

signature

getsignature(): ExtrinsicSignature

Defined in Extrinsic.ts:136

description: The ExtrinsicSignature

Returns: ExtrinsicSignature

Methods

__@iterator

▸ __@iterator(): IterableIterator<[keyof S, Codec]>

Inherited from Map.[Symbol.iterator]

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es2015.iterable.d.ts:113

Returns an iterable of entries in the map.

Returns: IterableIterator<[keyof S, Codec]>

addSignature

▸ addSignature(signer: Address | Uint8Array, signature: Uint8Array, nonce: AnyNumber, era?: Uint8Array): Extrinsic

Defined in Extrinsic.ts:143

description: Add an ExtrinsicSignature to the extrinsic (already generated)

Parameters:

Name Type
signer Address | Uint8Array
signature Uint8Array
nonce AnyNumber
Optional era Uint8Array

Returns: Extrinsic

clear

▸ clear(): void

Inherited from Map.clear

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es2015.collection.d.ts:22

Returns: void

delete

▸ delete(key: keyof S): boolean

Inherited from Map.delete

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es2015.collection.d.ts:23

Parameters:

Name Type
key keyof S

Returns: boolean

entries

▸ entries(): IterableIterator<[keyof S, Codec]>

Inherited from Map.entries

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es2015.iterable.d.ts:118

Returns an iterable of key, value pairs for every entry in the map.

Returns: IterableIterator<[keyof S, Codec]>

forEach

▸ forEach(callbackfn: function, thisArg?: any): void

Inherited from Map.forEach

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es2015.collection.d.ts:24

Parameters:

Name Type
callbackfn function
Optional thisArg any

Returns: void

get

▸ get(name: keyof S): Codec | undefined

Inherited from Struct.get

Overrides Map.get

Defined in codec/Struct.ts:150

description: Returns a specific names entry in the structure

Parameters:

Name Type Description
name keyof S The name of the entry to retrieve

Returns: Codec | undefined

getAtIndex

▸ getAtIndex(index: number): Codec

Inherited from Struct.getAtIndex

Defined in codec/Struct.ts:157

description: Returns the values of a member at a specific index (Rather use get(name) for performance)

Parameters:

Name Type
index number

Returns: Codec

has

▸ has(key: keyof S): boolean

Inherited from Map.has

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es2015.collection.d.ts:26

Parameters:

Name Type
key keyof S

Returns: boolean

keys

▸ keys(): IterableIterator<keyof S>

Inherited from Map.keys

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es2015.iterable.d.ts:123

Returns an iterable of keys in the map

Returns: IterableIterator<keyof S>

set

▸ set(key: keyof S, value: Codec): this

Inherited from Map.set

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es2015.collection.d.ts:27

Parameters:

Name Type
key keyof S
value Codec

Returns: this

sign

▸ sign(signerPair: KeyringPair, nonce: AnyNumber, blockHash: AnyU8a, era?: Uint8Array): Extrinsic

Defined in Extrinsic.ts:152

description: Sign the extrinsic with a specific keypair

Parameters:

Name Type
signerPair KeyringPair
nonce AnyNumber
blockHash AnyU8a
Optional era Uint8Array

Returns: Extrinsic

toArray

▸ toArray(): Array<Codec>

Inherited from Struct.toArray

Defined in codec/Struct.ts:164

description: Converts the Object to an standard JavaScript Array

Returns: Array<Codec>

toHex

▸ toHex(): string

Implementation of Codec.toHex

Overrides Struct.toHex

Defined in Extrinsic.ts:161

description: Returns a hex string representation of the value

Returns: string

toJSON

▸ toJSON(): any

Implementation of Codec.toJSON

Overrides Struct.toJSON

Defined in Extrinsic.ts:168

description: Converts the Object to JSON, typically used for RPC transfers

Returns: any

toString

▸ toString(): string

Implementation of Codec.toString

Inherited from Struct.toString

Defined in codec/Struct.ts:192

description: Returns the string representation of the value

Returns: string

toU8a

▸ toU8a(isBare?: undefined | false | true): Uint8Array

Implementation of Codec.toU8a

Overrides Struct.toU8a

Defined in Extrinsic.ts:176

description: Encodes the value as a Uint8Array as per the parity-codec specifications

Parameters:

Name Type Description
Optional isBare undefined | false | true true when the value has none of the type-specific prefixes (internal)

Returns: Uint8Array

values

▸ values(): IterableIterator<Codec>

Inherited from Map.values

Defined in /home/travis/build/polkadot-js/api/node_modules/typescript/lib/lib.es2015.iterable.d.ts:128

Returns an iterable of values in the map

Returns: IterableIterator<Codec>

<Static> decodeExtrinsic

▸ decodeExtrinsic(value?: ExtrinsicValue | AnyU8a): object | Uint8Array

Defined in Extrinsic.ts:44

Parameters:

Name Type
Optional value ExtrinsicValue | AnyU8a

Returns: object | Uint8Array

<Static> with

▸ with<S>(Types: S): Constructor<Struct<S>>

Inherited from Struct.with

Defined in codec/Struct.ts:113

Type parameters:

S : ConstructorDef

Parameters:

Name Type
Types S

Returns: Constructor<Struct<S>>

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