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
Optional currentPair• currentPair? : KeyringPair
Defined in src/base/Context.ts:90
isArchiveNode
• isArchiveNode: boolean = false
Defined in src/base/Context.ts:95
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:88
ss58Format
• ss58Format: number = DEFAULT_SS58_FORMAT
Defined in src/base/Context.ts:97
Accessors
middlewareApi
• get middlewareApi(): ApolloClient‹NormalizedCacheObject›
Defined in src/base/Context.ts:826
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:272
Retrieve the account level POLYX balance
note can be subscribed to
Parameters:
Name | Type |
| string | Account |
Returns: Promise‹AccountBalance›
▸ accountBalance(account: string | Account | undefined, callback: SubCallback‹AccountBalance›): Promise‹UnsubCallback›
Defined in src/base/Context.ts:273
Retrieve the account level POLYX balance
note can be subscribed to
Parameters:
Name | Type |
| string | Account | undefined |
|
Returns: Promise‹UnsubCallback›
disconnect
▸ disconnect(): Promise‹void›
Defined in src/base/Context.ts:896
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:244
Retrieve a list of addresses associated with the account
Returns: Array‹AccountData›
getCurrentAccount
▸ getCurrentAccount(): CurrentAccount
Defined in src/base/Context.ts:334
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:354
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:374
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:402
Check whether Identities exist
Parameters:
Name | Type |
| (string | Identity‹›)[] |
Returns: Promise‹string[]›
getLatestBlock
▸ getLatestBlock(): Promise‹BigNumber›
Defined in src/base/Context.ts:884
Retrieve the latest block number
Returns: Promise‹BigNumber›
getSecondaryKeys
▸ getSecondaryKeys(): Promise‹SecondaryKey[]›
Defined in src/base/Context.ts:600
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:601
Parameters:
Name | Type |
|
Returns: Promise‹UnsubCallback›
getSigner
▸ getSigner(): AddressOrPair
Defined in src/base/Context.ts:389
Retrieve the signer address (or keyring pair)
Returns: AddressOrPair
getTransactionArguments
▸ getTransactionArguments(args: object): TransactionArgument[]
Defined in src/base/Context.ts:452
Retrieve the types of arguments that a certain transaction requires to be run
Parameters:
▪ args: object
Name | Type | Description |
| 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:425
Retrieve the protocol fees associated with running a specific transaction
Parameters:
Name | Type | Description |
| TxTag | transaction tag (i.e. TxTags.asset.CreateAsset or "asset.createAsset") |
Returns: Promise‹BigNumber›
isMiddlewareAvailable
▸ isMiddlewareAvailable(): Promise‹boolean›
Defined in src/base/Context.ts:871
Return whether the middleware is enabled and online
Returns: Promise‹boolean›
isMiddlewareEnabled
▸ isMiddlewareEnabled(): boolean
Defined in src/base/Context.ts:864
Return whether the middleware was enabled at startup
Returns: boolean
issuedClaims
▸ issuedClaims(opts: object): Promise‹ResultSet‹ClaimData››
Defined in src/base/Context.ts:775
Retrieve a list of claims. Can be filtered using parameters
note uses the middleware (optional)
Parameters:
▪Default value opts: object= {}
Name | Type | Description |
| types of the claims to fetch. Defaults to any type | |
| undefined | false | true | whether to include expired claims. Defaults to true |
| undefined | number | page size |
| undefined | number | page offset |
| (string | Identity‹›)[] | identities (or Identity IDs) for which to fetch claims (targets). Defaults to all targets |
| (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:842
Make a query to the middleware server using the apollo client
Type parameters:
▪ Result: Partial‹Query›
Parameters:
Name | Type |
| GraphqlQuery‹unknown› |
Returns: Promise‹ApolloQueryResult‹Result››
setPair
▸ setPair(address: string): Promise‹void›
Defined in src/base/Context.ts:254
Set a pair as the current account keyring pair
Parameters:
Name | Type |
| string |
Returns: Promise‹void›
Static create
Static create▸ create(params: object): Promise‹Context›
Defined in src/base/Context.ts:145
Create the Context instance
Parameters:
▪ params: object
Name | Type |
| undefined | string |
| undefined | string |
| undefined | string |
| |
| ApolloClient‹NormalizedCacheObject› | null |
| ApiPromise |
Returns: Promise‹Context›
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