Class: PolymeshTransactionBatch<ReturnValue, TransformedReturnValue, Args>

Defined in: src/base/PolymeshTransactionBatch.ts:22

Wrapper class for a batch of Polymesh Transactions

Extends

• PolymeshTransactionBase<ReturnValue, TransformedReturnValue>

Type Parameters

Type Parameter	Default type
ReturnValue	‐
TransformedReturnValue	ReturnValue
Args extends unknown[][]	unknown[][]

Properties

blockHash?

optional blockHash?: string

Defined in: src/base/PolymeshTransactionBase.ts:107

hash of the block where this transaction resides (status: Succeeded, Failed)

Inherited from

PolymeshTransactionBase.blockHash

---

blockNumber?

optional blockNumber?: BigNumber

Defined in: src/base/PolymeshTransactionBase.ts:112

number of the block where this transaction resides (status: Succeeded, Failed)

Inherited from

PolymeshTransactionBase.blockNumber

---

error?

optional error?: PolymeshError

Defined in: src/base/PolymeshTransactionBase.ts:87

stores errors thrown while running the transaction (status: Failed, Aborted)

Inherited from

PolymeshTransactionBase.error

---

multiSig

multiSig: MultiSig | null

Defined in: src/base/PolymeshTransactionBase.ts:120

This will be set if the signingAddress is a MultiSig signer, otherwise null

When set it indicates the transaction will be wrapped as a proposal for the MultiSig, meaning .runAsProposal should be used instead of .run

Inherited from

PolymeshTransactionBase.multiSig

---

receipt?

optional receipt?: ISubmittableResult

Defined in: src/base/PolymeshTransactionBase.ts:92

stores the transaction receipt (if successful)

Inherited from

PolymeshTransactionBase.receipt

---

status

status: TransactionStatus = TransactionStatus.Idle

Defined in: src/base/PolymeshTransactionBase.ts:82

current status of the transaction

Inherited from

PolymeshTransactionBase.status

---

txHash?

optional txHash?: string

Defined in: src/base/PolymeshTransactionBase.ts:97

transaction hash (status: Running, Succeeded, Failed)

Inherited from

PolymeshTransactionBase.txHash

---

txIndex?

optional txIndex?: BigNumber

Defined in: src/base/PolymeshTransactionBase.ts:102

transaction index within its block (status: Succeeded, Failed)

Inherited from

PolymeshTransactionBase.txIndex

Accessors

isSuccess

Get Signature

get isSuccess(): boolean

Defined in: src/base/PolymeshTransactionBase.ts:929

returns true if transaction has completed successfully

Returns

boolean

Inherited from

PolymeshTransactionBase.isSuccess

---

result

Get Signature

get result(): TransformedReturnValue

Defined in: src/base/PolymeshTransactionBase.ts:840

returns the transaction result - this is the same value as the Promise run returns

Note

it is generally preferable to await the Promise returned by transaction.run() instead of reading this property

Throws

if the transaction.isSuccess property is false — be sure to check that before accessing!

Returns

TransformedReturnValue

Inherited from

PolymeshTransactionBase.result

---

transactions

Get Signature

get transactions(): MapTxData<Args>

Defined in: src/base/PolymeshTransactionBatch.ts:78

transactions in the batch with their respective arguments

Returns

MapTxData<Args>

Methods

getTotalFees()

getTotalFees(asProposal?: boolean): Promise<PayingAccountFees>

Defined in: src/base/PolymeshTransactionBase.ts:566

Retrieve a breakdown of the fees required to run this transaction, as well as the Account responsible for paying them

Parameters

Parameter	Type	Default value	Description
asProposal	boolean	true	When true (default), treats the transaction as a MultiSig proposal if the signing account is a MultiSig signer. When false, treats the transaction as a direct transaction from the signing account, ignoring the MultiSig.

Returns

Promise<PayingAccountFees>

Note

these values might be inaccurate if the transaction is run at a later time. This can be due to a governance vote or other chain related factors (like modifications to a specific subsidizer relationship or a chain upgrade)

Inherited from

PolymeshTransactionBase.getTotalFees

---

onProcessedByMiddleware()

onProcessedByMiddleware(listener: (err?: PolymeshError) => void): UnsubCallback

Defined in: src/base/PolymeshTransactionBase.ts:606

Subscribe to the results of this transaction being processed by the indexing service (and as such, available to the middleware)

Parameters

Parameter	Type	Description
listener	(err?: PolymeshError) => void	callback function that will be called whenever the middleware is updated with the latest data. If there is an error (timeout or middleware offline) it will be passed to this callback

Returns

UnsubCallback

unsubscribe function

Note

this event will be fired even if the queue fails

Throws

if the middleware wasn't enabled when instantiating the SDK client

Inherited from

PolymeshTransactionBase.onProcessedByMiddleware

---

onStatusChange()

onStatusChange(listener: (transaction: GenericPolymeshTransaction<ReturnValue, TransformedReturnValue>) => void): UnsubCallback

Defined in: src/base/PolymeshTransactionBase.ts:545

Subscribe to status changes

Parameters

Parameter	Type	Description
listener	(transaction: GenericPolymeshTransaction<ReturnValue, TransformedReturnValue>) => void	callback function that will be called whenever the status changes

Returns

UnsubCallback

unsubscribe function

Inherited from

PolymeshTransactionBase.onStatusChange

---

run()

run(): Promise<TransformedReturnValue>

Defined in: src/base/PolymeshTransactionBase.ts:285

Run the transaction, update its status and return a result if applicable. Certain transactions create Entities on the blockchain, and those Entities are returned for convenience. For example, when running a transaction that creates an Asset, the Asset itself is returned

Returns

Promise<TransformedReturnValue>

Inherited from

PolymeshTransactionBase.run

---

runAsProposal()

runAsProposal(): Promise<MultiSigProposal>

Defined in: src/base/PolymeshTransactionBase.ts:238

Run the transaction as a multiSig proposal

Returns

Promise<MultiSigProposal>

Inherited from

PolymeshTransactionBase.runAsProposal

---

splitTransactions()

splitTransactions(): (PolymeshTransaction<void, void, unknown[]> | PolymeshTransaction<ReturnValue, TransformedReturnValue, unknown[]>)[]

Defined in: src/base/PolymeshTransactionBatch.ts:204

Splits this batch into its individual transactions to be run separately. This is useful if the caller is being subsidized, since batches cannot be run by subsidized Accounts

Returns

(PolymeshTransaction<void, void, unknown[]> | PolymeshTransaction<ReturnValue, TransformedReturnValue, unknown[]>)[]

Note

the transactions returned by this method must be run in the same order they appear in the array to guarantee the same behavior. If run out of order, an error will be thrown. The result that would be obtained by running the batch is returned by running the last transaction in the array

Example

const createAssetTx = await sdk.assets.createAsset(...);

let ticker: string;

if (isPolymeshTransactionBatch<Asset>(createAssetTx)) {
  const transactions = createAssetTx.splitTransactions();

  for (let i = 0; i < length; i += 1) {
    const result = await transactions[i].run();

    if (isAsset(result)) {
      ({ticker} = result)
    }
  }
} else {
  ({ ticker } = await createAssetTx.run());
}

console.log(`New Asset created! Ticker: ${ticker}`);

---

supportsSubsidy()

supportsSubsidy(): boolean

Defined in: src/base/PolymeshTransactionBatch.ts:135

Returns

boolean

Note

batch can only be subsidized if -

1. Number of transactions in the batch are not more than 7
2. Every transaction in the batch can be subsidized

Overrides

PolymeshTransactionBase.supportsSubsidy

---

toSignablePayload()

toSignablePayload(metadata?: Record<string, string>, asProposal?: boolean): Promise<TransactionPayload>

Defined in: src/base/PolymeshTransactionBase.ts:865

Returns a representation intended for offline signers.

Parameters

Parameter	Type	Default value	Description
metadata	Record<string, string>	{}	Additional information attached to the payload, such as IDs or memos about the transaction
asProposal	boolean	true	When true (default), treats the transaction as a MultiSig proposal if the signing account is a MultiSig signer. When false, treats the transaction as a direct transaction from the signing account, ignoring the MultiSig.

Returns

Promise<TransactionPayload>

Note

Usually .run() should be preferred due to is simplicity.

Note

When using this method, details like account nonces, and transaction mortality require extra consideration. Generating a payload for offline sign implies asynchronicity. If using this API, be sure each procedure is created with the correct nonce, accounting for in flight transactions, and the lifetime is sufficient.

Inherited from

PolymeshTransactionBase.toSignablePayload