Get Block
qldb_get_block | R Documentation |
Returns a block object at a specified address in a journal¶
Description¶
Returns a block object at a specified address in a journal. Also returns
a proof of the specified block for verification if DigestTipAddress
is
provided.
For information about the data contents in a block, see Journal contents in the Amazon QLDB Developer Guide.
If the specified ledger doesn't exist or is in DELETING
status, then
throws ResourceNotFoundException
.
If the specified ledger is in CREATING
status, then throws
ResourcePreconditionNotMetException
.
If no block exists with the specified address, then throws
InvalidParameterException
.
Usage¶
Arguments¶
Name
[required] The name of the ledger.
BlockAddress
[required] The location of the block that you want to request. An address is an Amazon Ion structure that has two fields:
strandId
andsequenceNo
.For example:
{strandId:"BlFTjlSXze9BIh1KOszcE3",sequenceNo:14}
.DigestTipAddress
The latest block location covered by the digest for which to request a proof. An address is an Amazon Ion structure that has two fields:
strandId
andsequenceNo
.For example:
{strandId:"BlFTjlSXze9BIh1KOszcE3",sequenceNo:49}
.
Value¶
A list with the following syntax: