Amazonka.QLDB.GetDigest

Returns the digest of a ledger at the latest committed block in the journal. The response includes a 256-bit hash value and a block address.

Creating a Request

data GetDigest

See: newGetDigest smart constructor.

Constructors

GetDigest'

Fields

• name :: Text

  The name of the ledger.

Instances

ToJSON GetDigest

Defined in Amazonka.QLDB.GetDigest

Methods

toJSON :: GetDigest -> Value

toEncoding :: GetDigest -> Encoding

toJSONList :: [GetDigest] -> Value

toEncodingList :: [GetDigest] -> Encoding

ToHeaders GetDigest

Defined in Amazonka.QLDB.GetDigest

Methods

toHeaders :: GetDigest -> [Header]

ToPath GetDigest

Defined in Amazonka.QLDB.GetDigest

Methods

toPath :: GetDigest -> ByteString

ToQuery GetDigest

Defined in Amazonka.QLDB.GetDigest

Methods

toQuery :: GetDigest -> QueryString

AWSRequest GetDigest

Defined in Amazonka.QLDB.GetDigest

Associated Types

type AWSResponse GetDigest

Methods

request :: (Service -> Service) -> GetDigest -> Request GetDigest

response :: MonadResource m => (ByteStringLazy -> IO ByteStringLazy) -> Service -> Proxy GetDigest -> ClientResponse ClientBody -> m (Either Error (ClientResponse (AWSResponse GetDigest)))

Generic GetDigest

Defined in Amazonka.QLDB.GetDigest

Associated Types

type Rep GetDigest :: Type -> Type

Methods

from :: GetDigest -> Rep GetDigest x

to :: Rep GetDigest x -> GetDigest

Read GetDigest

Defined in Amazonka.QLDB.GetDigest

Methods

readsPrec :: Int -> ReadS GetDigest

readList :: ReadS [GetDigest]

readPrec :: ReadPrec GetDigest

readListPrec :: ReadPrec [GetDigest]

Show GetDigest

Defined in Amazonka.QLDB.GetDigest

Methods

showsPrec :: Int -> GetDigest -> ShowS

show :: GetDigest -> String

showList :: [GetDigest] -> ShowS

NFData GetDigest

Defined in Amazonka.QLDB.GetDigest

Methods

rnf :: GetDigest -> ()

Eq GetDigest

Defined in Amazonka.QLDB.GetDigest

Methods

(==) :: GetDigest -> GetDigest -> Bool

(/=) :: GetDigest -> GetDigest -> Bool

Hashable GetDigest

Defined in Amazonka.QLDB.GetDigest

Methods

hashWithSalt :: Int -> GetDigest -> Int

hash :: GetDigest -> Int

type AWSResponse GetDigest

Defined in Amazonka.QLDB.GetDigest

type AWSResponse GetDigest = GetDigestResponse

type Rep GetDigest

Defined in Amazonka.QLDB.GetDigest

type Rep GetDigest = D1 ('MetaData "GetDigest" "Amazonka.QLDB.GetDigest" "amazonka-qldb-2.0-GHDpAUfL5Gp5EFIat3BpxK" 'False) (C1 ('MetaCons "GetDigest'" 'PrefixI 'True) (S1 ('MetaSel ('Just "name") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 Text)))

newGetDigest

Arguments

:: Text

GetDigest

-> GetDigest

Create a value of GetDigest with all optional fields omitted.

Use generic-lens or optics to modify other optional fields.

The following record fields are available, with the corresponding lenses provided for backwards compatibility:

GetDigest, getDigest_name - The name of the ledger.

Request Lenses

getDigest_name :: Lens' GetDigest Text

The name of the ledger.

Destructuring the Response

data GetDigestResponse

See: newGetDigestResponse smart constructor.

Constructors

GetDigestResponse'

Fields

• httpStatus :: Int

  The response's http status code.

• digest :: Base64

  The 256-bit hash value representing the digest returned by a GetDigest request.

• digestTipAddress :: Sensitive ValueHolder

  The latest block location covered by the digest that you requested. An address is an Amazon Ion structure that has two fields: strandId and sequenceNo.

Instances

Generic GetDigestResponse

Defined in Amazonka.QLDB.GetDigest

Associated Types

type Rep GetDigestResponse :: Type -> Type

Methods

from :: GetDigestResponse -> Rep GetDigestResponse x

to :: Rep GetDigestResponse x -> GetDigestResponse

Show GetDigestResponse

Defined in Amazonka.QLDB.GetDigest

Methods

showsPrec :: Int -> GetDigestResponse -> ShowS

show :: GetDigestResponse -> String

showList :: [GetDigestResponse] -> ShowS

NFData GetDigestResponse

Defined in Amazonka.QLDB.GetDigest

Methods

rnf :: GetDigestResponse -> ()

Eq GetDigestResponse

Defined in Amazonka.QLDB.GetDigest

Methods

(==) :: GetDigestResponse -> GetDigestResponse -> Bool

(/=) :: GetDigestResponse -> GetDigestResponse -> Bool

type Rep GetDigestResponse

Defined in Amazonka.QLDB.GetDigest

type Rep GetDigestResponse = D1 ('MetaData "GetDigestResponse" "Amazonka.QLDB.GetDigest" "amazonka-qldb-2.0-GHDpAUfL5Gp5EFIat3BpxK" 'False) (C1 ('MetaCons "GetDigestResponse'" 'PrefixI 'True) (S1 ('MetaSel ('Just "httpStatus") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 Int) :*: (S1 ('MetaSel ('Just "digest") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 Base64) :*: S1 ('MetaSel ('Just "digestTipAddress") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Sensitive ValueHolder)))))

newGetDigestResponse

Arguments

:: Int

$sel:httpStatus:GetDigestResponse'

-> ByteString

$sel:digest:GetDigestResponse'

-> ValueHolder

$sel:digestTipAddress:GetDigestResponse'

-> GetDigestResponse

Create a value of GetDigestResponse with all optional fields omitted.

Use generic-lens or optics to modify other optional fields.

The following record fields are available, with the corresponding lenses provided for backwards compatibility:

$sel:httpStatus:GetDigestResponse', getDigestResponse_httpStatus - The response's http status code.

$sel:digest:GetDigestResponse', getDigestResponse_digest - The 256-bit hash value representing the digest returned by a GetDigest request.-- -- Note: This Lens automatically encodes and decodes Base64 data. -- The underlying isomorphism will encode to Base64 representation during -- serialisation, and decode from Base64 representation during deserialisation. -- This Lens accepts and returns only raw unencoded data.

$sel:digestTipAddress:GetDigestResponse', getDigestResponse_digestTipAddress - The latest block location covered by the digest that you requested. An address is an Amazon Ion structure that has two fields: strandId and sequenceNo.

Response Lenses

getDigestResponse_httpStatus :: Lens' GetDigestResponse Int

The response's http status code.

getDigestResponse_digest :: Lens' GetDigestResponse ByteString

The 256-bit hash value representing the digest returned by a GetDigest request.-- -- Note: This Lens automatically encodes and decodes Base64 data. -- The underlying isomorphism will encode to Base64 representation during -- serialisation, and decode from Base64 representation during deserialisation. -- This Lens accepts and returns only raw unencoded data.

getDigestResponse_digestTipAddress :: Lens' GetDigestResponse ValueHolder

The latest block location covered by the digest that you requested. An address is an Amazon Ion structure that has two fields: strandId and sequenceNo.