Context

Context in which the SDK is being used

  • Holds the current low level API

  • Holds the current keyring pair

  • Holds the current Identity

Hierarchy

  • Context

Index

Properties

Accessors

Methods

Properties

Optional currentPair

• currentPair? : KeyringPair

Defined in src/base/Context.ts:111

isArchiveNode

• isArchiveNode: boolean = false

Defined in src/base/Context.ts:116

Whether the current node is an archive node (contains a full history from genesis onward) or not

polymeshApi

• polymeshApi: ApiPromise

Defined in src/base/Context.ts:109

ss58Format

• ss58Format: number = DEFAULT_SS58_FORMAT

Defined in src/base/Context.ts:118

Accessors

middlewareApi

• get middlewareApi(): ApolloClient‹NormalizedCacheObject›

Defined in src/base/Context.ts:936

Retrieve the middleware client

throws if the middleware is not enabled

Returns: ApolloClient‹NormalizedCacheObject›

Methods

accountBalance

▸ accountBalance(account?: string | Account): Promise‹AccountBalance›

Defined in src/base/Context.ts:293

Retrieve the account level POLYX balance

note can be subscribed to

Parameters:

Name

Type

account?

string | Account

Returns: Promise‹AccountBalance›

▸ accountBalance(account: string | Account | undefined, callback: SubCallback‹AccountBalance›): Promise‹UnsubCallback›

Defined in src/base/Context.ts:294

Retrieve the account level POLYX balance

note can be subscribed to

Parameters:

Name

Type

account

string | Account | undefined

callback

SubCallback‹AccountBalance›

Returns: Promise‹UnsubCallback›

disconnect

▸ disconnect(): Promise‹void›

Defined in src/base/Context.ts:1006

Disconnect the Polkadot API, middleware, and render this instance unusable

note after disconnecting, trying to access any property in this objecct will result in an error

Returns: Promise‹void›

getAccounts

▸ getAccounts(): Array‹AccountData›

Defined in src/base/Context.ts:265

Retrieve a list of addresses associated with the account

Returns: Array‹AccountData›

getCurrentAccount

▸ getCurrentAccount(): CurrentAccount

Defined in src/base/Context.ts:355

Retrieve current Account

throws if there is no current account associated to the SDK instance

Returns: CurrentAccount

getCurrentIdentity

▸ getCurrentIdentity(): Promise‹CurrentIdentity›

Defined in src/base/Context.ts:375

Retrieve current Identity

throws if there is no Identity associated to the current Account (or there is no current Account associated to the SDK instance)

Returns: Promise‹CurrentIdentity›

getCurrentPair

▸ getCurrentPair(): KeyringPair

Defined in src/base/Context.ts:395

Retrieve current Keyring Pair

throws if there is no Account associated to the SDK instance

Returns: KeyringPair

getInvalidDids

▸ getInvalidDids(identities: (string | Identity‹›)[]): Promise‹string[]›

Defined in src/base/Context.ts:423

Check whether Identities exist

Parameters:

Name

Type

identities

(string | Identity‹›)[]

Returns: Promise‹string[]›

getLatestBlock

▸ getLatestBlock(): Promise‹BigNumber›

Defined in src/base/Context.ts:994

Retrieve the latest block number

Returns: Promise‹BigNumber›

getSecondaryKeys

▸ getSecondaryKeys(): Promise‹SecondaryKey[]›

Defined in src/base/Context.ts:621

Retrieve the list of secondary keys related to the Account

note can be subscribed to

Returns: Promise‹SecondaryKey[]›

▸ getSecondaryKeys(callback: SubCallback‹SecondaryKey[]›): Promise‹UnsubCallback›

Defined in src/base/Context.ts:622

Parameters:

Name

Type

callback

SubCallback‹SecondaryKey[]›

Returns: Promise‹UnsubCallback›

getSigner

▸ getSigner(): AddressOrPair

Defined in src/base/Context.ts:410

Retrieve the signer address (or keyring pair)

Returns: AddressOrPair

getTransactionArguments

▸ getTransactionArguments(args: object): TransactionArgument[]

Defined in src/base/Context.ts:473

Retrieve the types of arguments that a certain transaction requires to be run

Parameters:

▪ args: object

Name

Type

Description

tag

TxTag

tag associated with the transaction that will be executed if the proposal passes

Returns: TransactionArgument[]

getTransactionFees

▸ getTransactionFees(tag: TxTag): Promise‹BigNumber›

Defined in src/base/Context.ts:446

Retrieve the protocol fees associated with running a specific transaction

Parameters:

Name

Type

Description

tag

TxTag

transaction tag (i.e. TxTags.asset.CreateAsset or "asset.createAsset")

Returns: Promise‹BigNumber›

isMiddlewareAvailable

▸ isMiddlewareAvailable(): Promise‹boolean›

Defined in src/base/Context.ts:981

Return whether the middleware is enabled and online

Returns: Promise‹boolean›

isMiddlewareEnabled

▸ isMiddlewareEnabled(): boolean

Defined in src/base/Context.ts:974

Return whether the middleware was enabled at startup

Returns: boolean

issuedClaims

▸ issuedClaims(opts: object): Promise‹ResultSet‹ClaimData››

Defined in src/base/Context.ts:885

Retrieve a list of claims. Can be filtered using parameters

note uses the middleware (optional)

Parameters:

▪Default value opts: object= {}

Name

Type

Description

claimTypes?

Exclude‹ClaimType, InvestorUniquenessV2›[]

types of the claims to fetch. Defaults to any type

includeExpired?

undefined | false | true

whether to include expired claims. Defaults to true

size?

undefined | number

page size

start?

undefined | number

page offset

targets?

(string | Identity‹›)[]

identities (or Identity IDs) for which to fetch claims (targets). Defaults to all targets

trustedClaimIssuers?

(string | Identity‹›)[]

identity IDs of claim issuers. Defaults to all claim issuers

Returns: Promise‹ResultSet‹ClaimData››

queryMiddleware

▸ queryMiddleware‹Result›(query: GraphqlQuery‹unknown›): Promise‹ApolloQueryResult‹Result››

Defined in src/base/Context.ts:952

Make a query to the middleware server using the apollo client

Type parameters:

▪ Result: Partial‹Query›

Parameters:

Name

Type

query

GraphqlQuery‹unknown›

Returns: Promise‹ApolloQueryResult‹Result››

setPair

▸ setPair(address: string): Promise‹void›

Defined in src/base/Context.ts:275

Set a pair as the current account keyring pair

Parameters:

Name

Type

address

string

Returns: Promise‹void›

Static create

▸ create(params: object): Promise‹Context›

Defined in src/base/Context.ts:166

Create the Context instance

Parameters:

▪ params: object

Name

Type

accountMnemonic?

undefined | string

accountSeed?

undefined | string

accountUri?

undefined | string

keyring?

CommonKeyring | UiKeyring

middlewareApi

ApolloClient‹NormalizedCacheObject› | null

polymeshApi

ApiPromise

Returns: Promise‹Context›

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