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1364645c6c
Before all transactions were processed and when the failure was simulated a message was printed and all the transactions still processed. Now the store returns an error when the failure is simulated which the listener expects so that it can gracefully shutdown the system and close the context. The context must be closed correctly or the checkpointer won't save the last processed transactionId to the file system. Signed-off-by: Stanislav Jakuschevskij <stas@two-giants.com>
25 lines
845 B
Go
25 lines
845 B
Go
package store
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// Apply writes for a given transaction to off-chain data store, ideally in a single operation for fault tolerance.
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type Writer = func(data LedgerUpdate) error
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// Ledger update made by a specific transaction.
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type LedgerUpdate struct {
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BlockNumber uint64
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TransactionId string
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Writes []Write
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}
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// Description of a ledger Write that can be applied to an off-chain data store.
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type Write struct {
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// Channel whose ledger is being updated.
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ChannelName string `json:"channelName"`
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// Namespace within the ledger.
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Namespace string `json:"namespace"`
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// Key name within the ledger namespace.
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Key string `json:"key"`
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// Whether the key and associated value are being deleted.
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IsDelete bool `json:"isDelete"`
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// If `isDelete` is false, the Value written to the key; otherwise ignored.
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Value string `json:"value"`
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}
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