FetchBlock returns the raw serialized bytes for the block identified by the given hash. The raw bytes are in the format returned by Serialize on a wire.MsgBlock.

The interface contract guarantees at least the following errors will be returned (other implementation-specific errors are possible):

- ErrBlockNotFound if the requested block hash does not exist
- ErrTxClosed if the transaction has already been closed
- ErrCorruption if the database has somehow become corrupted

NOTE: The data returned by this function is only valid during a database transaction. Attempting to access it after a transaction has ended results in undefined behavior. This constraint prevents additional data copies and allows support for memory-mapped database implementations.

FetchBlock is referenced in 2 repositories