Table of Contents
A low-level client representing Amazon QLDB:
import boto3
client = boto3.client('qldb')
These are the available methods:
Check if an operation can be paginated.
Ends a given Amazon QLDB journal stream. Before a stream can be canceled, its current status must be ACTIVE .
You can't restart a stream after you cancel it. Canceled QLDB stream resources are subject to a 7-day retention period, so they are automatically deleted after this limit expires.
See also: AWS API Documentation
Request Syntax
response = client.cancel_journal_kinesis_stream(
LedgerName='string',
StreamId='string'
)
[REQUIRED]
The name of the ledger.
[REQUIRED]
The unique ID that QLDB assigns to each QLDB journal stream.
dict
Response Syntax
{
'StreamId': 'string'
}
Response Structure
(dict) --
StreamId (string) --
The unique ID that QLDB assigns to each QLDB journal stream.
Exceptions
Creates a new ledger in your AWS account.
See also: AWS API Documentation
Request Syntax
response = client.create_ledger(
Name='string',
Tags={
'string': 'string'
},
PermissionsMode='ALLOW_ALL',
DeletionProtection=True|False
)
[REQUIRED]
The name of the ledger that you want to create. The name must be unique among all of your ledgers in the current AWS Region.
The key-value pairs to add as tags to the ledger that you want to create. Tag keys are case sensitive. Tag values are case sensitive and can be null.
[REQUIRED]
The permissions mode to assign to the ledger that you want to create.
The flag that prevents a ledger from being deleted by any user. If not provided on ledger creation, this feature is enabled (true ) by default.
If deletion protection is enabled, you must first disable it before you can delete the ledger using the QLDB API or the AWS Command Line Interface (AWS CLI). You can disable it by calling the UpdateLedger operation to set the flag to false . The QLDB console disables deletion protection for you when you use it to delete a ledger.
dict
Response Syntax
{
'Name': 'string',
'Arn': 'string',
'State': 'CREATING'|'ACTIVE'|'DELETING'|'DELETED',
'CreationDateTime': datetime(2015, 1, 1),
'DeletionProtection': True|False
}
Response Structure
(dict) --
Name (string) --
The name of the ledger.
Arn (string) --
The Amazon Resource Name (ARN) for the ledger.
State (string) --
The current status of the ledger.
CreationDateTime (datetime) --
The date and time, in epoch time format, when the ledger was created. (Epoch time format is the number of seconds elapsed since 12:00:00 AM January 1, 1970 UTC.)
DeletionProtection (boolean) --
The flag that prevents a ledger from being deleted by any user. If not provided on ledger creation, this feature is enabled (true ) by default.
If deletion protection is enabled, you must first disable it before you can delete the ledger using the QLDB API or the AWS Command Line Interface (AWS CLI). You can disable it by calling the UpdateLedger operation to set the flag to false . The QLDB console disables deletion protection for you when you use it to delete a ledger.
Exceptions
Deletes a ledger and all of its contents. This action is irreversible.
If deletion protection is enabled, you must first disable it before you can delete the ledger using the QLDB API or the AWS Command Line Interface (AWS CLI). You can disable it by calling the UpdateLedger operation to set the flag to false . The QLDB console disables deletion protection for you when you use it to delete a ledger.
See also: AWS API Documentation
Request Syntax
response = client.delete_ledger(
Name='string'
)
[REQUIRED]
The name of the ledger that you want to delete.
Exceptions
Returns detailed information about a given Amazon QLDB journal stream. The output includes the Amazon Resource Name (ARN), stream name, current status, creation time, and the parameters of your original stream creation request.
See also: AWS API Documentation
Request Syntax
response = client.describe_journal_kinesis_stream(
LedgerName='string',
StreamId='string'
)
[REQUIRED]
The name of the ledger.
[REQUIRED]
The unique ID that QLDB assigns to each QLDB journal stream.
dict
Response Syntax
{
'Stream': {
'LedgerName': 'string',
'CreationTime': datetime(2015, 1, 1),
'InclusiveStartTime': datetime(2015, 1, 1),
'ExclusiveEndTime': datetime(2015, 1, 1),
'RoleArn': 'string',
'StreamId': 'string',
'Arn': 'string',
'Status': 'ACTIVE'|'COMPLETED'|'CANCELED'|'FAILED'|'IMPAIRED',
'KinesisConfiguration': {
'StreamArn': 'string',
'AggregationEnabled': True|False
},
'ErrorCause': 'KINESIS_STREAM_NOT_FOUND'|'IAM_PERMISSION_REVOKED',
'StreamName': 'string'
}
}
Response Structure
(dict) --
Stream (dict) --
Information about the QLDB journal stream returned by a DescribeJournalS3Export request.
LedgerName (string) --
The name of the ledger.
CreationTime (datetime) --
The date and time, in epoch time format, when the QLDB journal stream was created. (Epoch time format is the number of seconds elapsed since 12:00:00 AM January 1, 1970 UTC.)
InclusiveStartTime (datetime) --
The inclusive start date and time from which to start streaming journal data.
ExclusiveEndTime (datetime) --
The exclusive date and time that specifies when the stream ends. If this parameter is blank, the stream runs indefinitely until you cancel it.
RoleArn (string) --
The Amazon Resource Name (ARN) of the IAM role that grants QLDB permissions for a journal stream to write data records to a Kinesis Data Streams resource.
StreamId (string) --
The unique ID that QLDB assigns to each QLDB journal stream.
Arn (string) --
The Amazon Resource Name (ARN) of the QLDB journal stream.
Status (string) --
The current state of the QLDB journal stream.
KinesisConfiguration (dict) --
The configuration settings of the Amazon Kinesis Data Streams destination for your QLDB journal stream.
StreamArn (string) --
The Amazon Resource Name (ARN) of the Kinesis data stream resource.
AggregationEnabled (boolean) --
Enables QLDB to publish multiple stream records in a single Kinesis Data Streams record. To learn more, see KPL Key Concepts in the Amazon Kinesis Data Streams Developer Guide .
ErrorCause (string) --
The error message that describes the reason that a stream has a status of IMPAIRED or FAILED . This is not applicable to streams that have other status values.
StreamName (string) --
The user-defined name of the QLDB journal stream.
Exceptions
Returns information about a journal export job, including the ledger name, export ID, when it was created, current status, and its start and end time export parameters.
This action does not return any expired export jobs. For more information, see Export Job Expiration in the Amazon QLDB Developer Guide .
If the export job with the given ExportId doesn't exist, then throws ResourceNotFoundException .
If the ledger with the given Name doesn't exist, then throws ResourceNotFoundException .
See also: AWS API Documentation
Request Syntax
response = client.describe_journal_s3_export(
Name='string',
ExportId='string'
)
[REQUIRED]
The name of the ledger.
[REQUIRED]
The unique ID of the journal export job that you want to describe.
dict
Response Syntax
{
'ExportDescription': {
'LedgerName': 'string',
'ExportId': 'string',
'ExportCreationTime': datetime(2015, 1, 1),
'Status': 'IN_PROGRESS'|'COMPLETED'|'CANCELLED',
'InclusiveStartTime': datetime(2015, 1, 1),
'ExclusiveEndTime': datetime(2015, 1, 1),
'S3ExportConfiguration': {
'Bucket': 'string',
'Prefix': 'string',
'EncryptionConfiguration': {
'ObjectEncryptionType': 'SSE_KMS'|'SSE_S3'|'NO_ENCRYPTION',
'KmsKeyArn': 'string'
}
},
'RoleArn': 'string'
}
}
Response Structure
(dict) --
ExportDescription (dict) --
Information about the journal export job returned by a DescribeJournalS3Export request.
LedgerName (string) --
The name of the ledger.
ExportId (string) --
The unique ID of the journal export job.
ExportCreationTime (datetime) --
The date and time, in epoch time format, when the export job was created. (Epoch time format is the number of seconds elapsed since 12:00:00 AM January 1, 1970 UTC.)
Status (string) --
The current state of the journal export job.
InclusiveStartTime (datetime) --
The inclusive start date and time for the range of journal contents that are specified in the original export request.
ExclusiveEndTime (datetime) --
The exclusive end date and time for the range of journal contents that are specified in the original export request.
S3ExportConfiguration (dict) --
The Amazon Simple Storage Service (Amazon S3) bucket location in which a journal export job writes the journal contents.
Bucket (string) --
The Amazon S3 bucket name in which a journal export job writes the journal contents.
The bucket name must comply with the Amazon S3 bucket naming conventions. For more information, see Bucket Restrictions and Limitations in the Amazon S3 Developer Guide .
Prefix (string) --
The prefix for the Amazon S3 bucket in which a journal export job writes the journal contents.
The prefix must comply with Amazon S3 key naming rules and restrictions. For more information, see Object Key and Metadata in the Amazon S3 Developer Guide .
The following are examples of valid Prefix values:
EncryptionConfiguration (dict) --
The encryption settings that are used by a journal export job to write data in an Amazon S3 bucket.
ObjectEncryptionType (string) --
The Amazon S3 object encryption type.
To learn more about server-side encryption options in Amazon S3, see Protecting Data Using Server-Side Encryption in the Amazon S3 Developer Guide .
KmsKeyArn (string) --
The Amazon Resource Name (ARN) for a symmetric customer master key (CMK) in AWS Key Management Service (AWS KMS). Amazon QLDB does not support asymmetric CMKs.
You must provide a KmsKeyArn if you specify SSE_KMS as the ObjectEncryptionType .
KmsKeyArn is not required if you specify SSE_S3 as the ObjectEncryptionType .
RoleArn (string) --
The Amazon Resource Name (ARN) of the IAM role that grants QLDB permissions for a journal export job to do the following:
Exceptions
Returns information about a ledger, including its state and when it was created.
See also: AWS API Documentation
Request Syntax
response = client.describe_ledger(
Name='string'
)
[REQUIRED]
The name of the ledger that you want to describe.
{
'Name': 'string',
'Arn': 'string',
'State': 'CREATING'|'ACTIVE'|'DELETING'|'DELETED',
'CreationDateTime': datetime(2015, 1, 1),
'DeletionProtection': True|False
}
Response Structure
The name of the ledger.
The Amazon Resource Name (ARN) for the ledger.
The current status of the ledger.
The date and time, in epoch time format, when the ledger was created. (Epoch time format is the number of seconds elapsed since 12:00:00 AM January 1, 1970 UTC.)
The flag that prevents a ledger from being deleted by any user. If not provided on ledger creation, this feature is enabled (true ) by default.
If deletion protection is enabled, you must first disable it before you can delete the ledger using the QLDB API or the AWS Command Line Interface (AWS CLI). You can disable it by calling the UpdateLedger operation to set the flag to false . The QLDB console disables deletion protection for you when you use it to delete a ledger.
Exceptions
Exports journal contents within a date and time range from a ledger into a specified Amazon Simple Storage Service (Amazon S3) bucket. The data is written as files in Amazon Ion format.
If the ledger with the given Name doesn't exist, then throws ResourceNotFoundException .
If the ledger with the given Name is in CREATING status, then throws ResourcePreconditionNotMetException .
You can initiate up to two concurrent journal export requests for each ledger. Beyond this limit, journal export requests throw LimitExceededException .
See also: AWS API Documentation
Request Syntax
response = client.export_journal_to_s3(
Name='string',
InclusiveStartTime=datetime(2015, 1, 1),
ExclusiveEndTime=datetime(2015, 1, 1),
S3ExportConfiguration={
'Bucket': 'string',
'Prefix': 'string',
'EncryptionConfiguration': {
'ObjectEncryptionType': 'SSE_KMS'|'SSE_S3'|'NO_ENCRYPTION',
'KmsKeyArn': 'string'
}
},
RoleArn='string'
)
[REQUIRED]
The name of the ledger.
[REQUIRED]
The inclusive start date and time for the range of journal contents that you want to export.
The InclusiveStartTime must be in ISO 8601 date and time format and in Universal Coordinated Time (UTC). For example: 2019-06-13T21:36:34Z
The InclusiveStartTime must be before ExclusiveEndTime .
If you provide an InclusiveStartTime that is before the ledger's CreationDateTime , Amazon QLDB defaults it to the ledger's CreationDateTime .
[REQUIRED]
The exclusive end date and time for the range of journal contents that you want to export.
The ExclusiveEndTime must be in ISO 8601 date and time format and in Universal Coordinated Time (UTC). For example: 2019-06-13T21:36:34Z
The ExclusiveEndTime must be less than or equal to the current UTC date and time.
[REQUIRED]
The configuration settings of the Amazon S3 bucket destination for your export request.
The Amazon S3 bucket name in which a journal export job writes the journal contents.
The bucket name must comply with the Amazon S3 bucket naming conventions. For more information, see Bucket Restrictions and Limitations in the Amazon S3 Developer Guide .
The prefix for the Amazon S3 bucket in which a journal export job writes the journal contents.
The prefix must comply with Amazon S3 key naming rules and restrictions. For more information, see Object Key and Metadata in the Amazon S3 Developer Guide .
The following are examples of valid Prefix values:
The encryption settings that are used by a journal export job to write data in an Amazon S3 bucket.
The Amazon S3 object encryption type.
To learn more about server-side encryption options in Amazon S3, see Protecting Data Using Server-Side Encryption in the Amazon S3 Developer Guide .
The Amazon Resource Name (ARN) for a symmetric customer master key (CMK) in AWS Key Management Service (AWS KMS). Amazon QLDB does not support asymmetric CMKs.
You must provide a KmsKeyArn if you specify SSE_KMS as the ObjectEncryptionType .
KmsKeyArn is not required if you specify SSE_S3 as the ObjectEncryptionType .
[REQUIRED]
The Amazon Resource Name (ARN) of the IAM role that grants QLDB permissions for a journal export job to do the following:
dict
Response Syntax
{
'ExportId': 'string'
}
Response Structure
(dict) --
ExportId (string) --
The unique ID that QLDB assigns to each journal export job.
To describe your export request and check the status of the job, you can use ExportId to call DescribeJournalS3Export .
Exceptions
Generate a presigned url given a client, its method, and arguments
The presigned url
Returns a journal block object at a specified address in a ledger. Also returns a proof of the specified block for verification if DigestTipAddress is provided.
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 .
See also: AWS API Documentation
Request Syntax
response = client.get_block(
Name='string',
BlockAddress={
'IonText': 'string'
},
DigestTipAddress={
'IonText': 'string'
}
)
[REQUIRED]
The name of the ledger.
[REQUIRED]
The location of the block that you want to request. An address is an Amazon Ion structure that has two fields: strandId and sequenceNo .
For example: {strandId:"BlFTjlSXze9BIh1KOszcE3",sequenceNo:14}
An Amazon Ion plaintext value contained in a ValueHolder structure.
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 and sequenceNo .
For example: {strandId:"BlFTjlSXze9BIh1KOszcE3",sequenceNo:49}
An Amazon Ion plaintext value contained in a ValueHolder structure.
dict
Response Syntax
{
'Block': {
'IonText': 'string'
},
'Proof': {
'IonText': 'string'
}
}
Response Structure
(dict) --
Block (dict) --
The block data object in Amazon Ion format.
IonText (string) --
An Amazon Ion plaintext value contained in a ValueHolder structure.
Proof (dict) --
The proof object in Amazon Ion format returned by a GetBlock request. A proof contains the list of hash values required to recalculate the specified digest using a Merkle tree, starting with the specified block.
IonText (string) --
An Amazon Ion plaintext value contained in a ValueHolder structure.
Exceptions
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.
See also: AWS API Documentation
Request Syntax
response = client.get_digest(
Name='string'
)
[REQUIRED]
The name of the ledger.
{
'Digest': b'bytes',
'DigestTipAddress': {
'IonText': 'string'
}
}
Response Structure
The 256-bit hash value representing the digest returned by a GetDigest request.
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 .
An Amazon Ion plaintext value contained in a ValueHolder structure.
Exceptions
Create a paginator for an operation.
Returns a revision data object for a specified document ID and block address. Also returns a proof of the specified revision for verification if DigestTipAddress is provided.
See also: AWS API Documentation
Request Syntax
response = client.get_revision(
Name='string',
BlockAddress={
'IonText': 'string'
},
DocumentId='string',
DigestTipAddress={
'IonText': 'string'
}
)
[REQUIRED]
The name of the ledger.
[REQUIRED]
The block location of the document revision to be verified. An address is an Amazon Ion structure that has two fields: strandId and sequenceNo .
For example: {strandId:"BlFTjlSXze9BIh1KOszcE3",sequenceNo:14}
An Amazon Ion plaintext value contained in a ValueHolder structure.
[REQUIRED]
The unique ID of the document to be verified.
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 and sequenceNo .
For example: {strandId:"BlFTjlSXze9BIh1KOszcE3",sequenceNo:49}
An Amazon Ion plaintext value contained in a ValueHolder structure.
dict
Response Syntax
{
'Proof': {
'IonText': 'string'
},
'Revision': {
'IonText': 'string'
}
}
Response Structure
(dict) --
Proof (dict) --
The proof object in Amazon Ion format returned by a GetRevision request. A proof contains the list of hash values that are required to recalculate the specified digest using a Merkle tree, starting with the specified document revision.
IonText (string) --
An Amazon Ion plaintext value contained in a ValueHolder structure.
Revision (dict) --
The document revision data object in Amazon Ion format.
IonText (string) --
An Amazon Ion plaintext value contained in a ValueHolder structure.
Exceptions
Returns an object that can wait for some condition.
Returns an array of all Amazon QLDB journal stream descriptors for a given ledger. The output of each stream descriptor includes the same details that are returned by DescribeJournalKinesisStream .
This action returns a maximum of MaxResults items. It is paginated so that you can retrieve all the items by calling ListJournalKinesisStreamsForLedger multiple times.
See also: AWS API Documentation
Request Syntax
response = client.list_journal_kinesis_streams_for_ledger(
LedgerName='string',
MaxResults=123,
NextToken='string'
)
[REQUIRED]
The name of the ledger.
dict
Response Syntax
{
'Streams': [
{
'LedgerName': 'string',
'CreationTime': datetime(2015, 1, 1),
'InclusiveStartTime': datetime(2015, 1, 1),
'ExclusiveEndTime': datetime(2015, 1, 1),
'RoleArn': 'string',
'StreamId': 'string',
'Arn': 'string',
'Status': 'ACTIVE'|'COMPLETED'|'CANCELED'|'FAILED'|'IMPAIRED',
'KinesisConfiguration': {
'StreamArn': 'string',
'AggregationEnabled': True|False
},
'ErrorCause': 'KINESIS_STREAM_NOT_FOUND'|'IAM_PERMISSION_REVOKED',
'StreamName': 'string'
},
],
'NextToken': 'string'
}
Response Structure
(dict) --
Streams (list) --
The array of QLDB journal stream descriptors that are associated with the given ledger.
(dict) --
The information about an Amazon QLDB journal stream, including the Amazon Resource Name (ARN), stream name, creation time, current status, and the parameters of your original stream creation request.
LedgerName (string) --
The name of the ledger.
CreationTime (datetime) --
The date and time, in epoch time format, when the QLDB journal stream was created. (Epoch time format is the number of seconds elapsed since 12:00:00 AM January 1, 1970 UTC.)
InclusiveStartTime (datetime) --
The inclusive start date and time from which to start streaming journal data.
ExclusiveEndTime (datetime) --
The exclusive date and time that specifies when the stream ends. If this parameter is blank, the stream runs indefinitely until you cancel it.
RoleArn (string) --
The Amazon Resource Name (ARN) of the IAM role that grants QLDB permissions for a journal stream to write data records to a Kinesis Data Streams resource.
StreamId (string) --
The unique ID that QLDB assigns to each QLDB journal stream.
Arn (string) --
The Amazon Resource Name (ARN) of the QLDB journal stream.
Status (string) --
The current state of the QLDB journal stream.
KinesisConfiguration (dict) --
The configuration settings of the Amazon Kinesis Data Streams destination for your QLDB journal stream.
StreamArn (string) --
The Amazon Resource Name (ARN) of the Kinesis data stream resource.
AggregationEnabled (boolean) --
Enables QLDB to publish multiple stream records in a single Kinesis Data Streams record. To learn more, see KPL Key Concepts in the Amazon Kinesis Data Streams Developer Guide .
ErrorCause (string) --
The error message that describes the reason that a stream has a status of IMPAIRED or FAILED . This is not applicable to streams that have other status values.
StreamName (string) --
The user-defined name of the QLDB journal stream.
NextToken (string) --
Exceptions
Returns an array of journal export job descriptions for all ledgers that are associated with the current AWS account and Region.
This action returns a maximum of MaxResults items, and is paginated so that you can retrieve all the items by calling ListJournalS3Exports multiple times.
This action does not return any expired export jobs. For more information, see Export Job Expiration in the Amazon QLDB Developer Guide .
See also: AWS API Documentation
Request Syntax
response = client.list_journal_s3_exports(
MaxResults=123,
NextToken='string'
)
dict
Response Syntax
{
'JournalS3Exports': [
{
'LedgerName': 'string',
'ExportId': 'string',
'ExportCreationTime': datetime(2015, 1, 1),
'Status': 'IN_PROGRESS'|'COMPLETED'|'CANCELLED',
'InclusiveStartTime': datetime(2015, 1, 1),
'ExclusiveEndTime': datetime(2015, 1, 1),
'S3ExportConfiguration': {
'Bucket': 'string',
'Prefix': 'string',
'EncryptionConfiguration': {
'ObjectEncryptionType': 'SSE_KMS'|'SSE_S3'|'NO_ENCRYPTION',
'KmsKeyArn': 'string'
}
},
'RoleArn': 'string'
},
],
'NextToken': 'string'
}
Response Structure
(dict) --
JournalS3Exports (list) --
The array of journal export job descriptions for all ledgers that are associated with the current AWS account and Region.
(dict) --
The information about a journal export job, including the ledger name, export ID, when it was created, current status, and its start and end time export parameters.
LedgerName (string) --
The name of the ledger.
ExportId (string) --
The unique ID of the journal export job.
ExportCreationTime (datetime) --
The date and time, in epoch time format, when the export job was created. (Epoch time format is the number of seconds elapsed since 12:00:00 AM January 1, 1970 UTC.)
Status (string) --
The current state of the journal export job.
InclusiveStartTime (datetime) --
The inclusive start date and time for the range of journal contents that are specified in the original export request.
ExclusiveEndTime (datetime) --
The exclusive end date and time for the range of journal contents that are specified in the original export request.
S3ExportConfiguration (dict) --
The Amazon Simple Storage Service (Amazon S3) bucket location in which a journal export job writes the journal contents.
Bucket (string) --
The Amazon S3 bucket name in which a journal export job writes the journal contents.
The bucket name must comply with the Amazon S3 bucket naming conventions. For more information, see Bucket Restrictions and Limitations in the Amazon S3 Developer Guide .
Prefix (string) --
The prefix for the Amazon S3 bucket in which a journal export job writes the journal contents.
The prefix must comply with Amazon S3 key naming rules and restrictions. For more information, see Object Key and Metadata in the Amazon S3 Developer Guide .
The following are examples of valid Prefix values:
EncryptionConfiguration (dict) --
The encryption settings that are used by a journal export job to write data in an Amazon S3 bucket.
ObjectEncryptionType (string) --
The Amazon S3 object encryption type.
To learn more about server-side encryption options in Amazon S3, see Protecting Data Using Server-Side Encryption in the Amazon S3 Developer Guide .
KmsKeyArn (string) --
The Amazon Resource Name (ARN) for a symmetric customer master key (CMK) in AWS Key Management Service (AWS KMS). Amazon QLDB does not support asymmetric CMKs.
You must provide a KmsKeyArn if you specify SSE_KMS as the ObjectEncryptionType .
KmsKeyArn is not required if you specify SSE_S3 as the ObjectEncryptionType .
RoleArn (string) --
The Amazon Resource Name (ARN) of the IAM role that grants QLDB permissions for a journal export job to do the following:
NextToken (string) --
Returns an array of journal export job descriptions for a specified ledger.
This action returns a maximum of MaxResults items, and is paginated so that you can retrieve all the items by calling ListJournalS3ExportsForLedger multiple times.
This action does not return any expired export jobs. For more information, see Export Job Expiration in the Amazon QLDB Developer Guide .
See also: AWS API Documentation
Request Syntax
response = client.list_journal_s3_exports_for_ledger(
Name='string',
MaxResults=123,
NextToken='string'
)
[REQUIRED]
The name of the ledger.
dict
Response Syntax
{
'JournalS3Exports': [
{
'LedgerName': 'string',
'ExportId': 'string',
'ExportCreationTime': datetime(2015, 1, 1),
'Status': 'IN_PROGRESS'|'COMPLETED'|'CANCELLED',
'InclusiveStartTime': datetime(2015, 1, 1),
'ExclusiveEndTime': datetime(2015, 1, 1),
'S3ExportConfiguration': {
'Bucket': 'string',
'Prefix': 'string',
'EncryptionConfiguration': {
'ObjectEncryptionType': 'SSE_KMS'|'SSE_S3'|'NO_ENCRYPTION',
'KmsKeyArn': 'string'
}
},
'RoleArn': 'string'
},
],
'NextToken': 'string'
}
Response Structure
(dict) --
JournalS3Exports (list) --
The array of journal export job descriptions that are associated with the specified ledger.
(dict) --
The information about a journal export job, including the ledger name, export ID, when it was created, current status, and its start and end time export parameters.
LedgerName (string) --
The name of the ledger.
ExportId (string) --
The unique ID of the journal export job.
ExportCreationTime (datetime) --
The date and time, in epoch time format, when the export job was created. (Epoch time format is the number of seconds elapsed since 12:00:00 AM January 1, 1970 UTC.)
Status (string) --
The current state of the journal export job.
InclusiveStartTime (datetime) --
The inclusive start date and time for the range of journal contents that are specified in the original export request.
ExclusiveEndTime (datetime) --
The exclusive end date and time for the range of journal contents that are specified in the original export request.
S3ExportConfiguration (dict) --
The Amazon Simple Storage Service (Amazon S3) bucket location in which a journal export job writes the journal contents.
Bucket (string) --
The Amazon S3 bucket name in which a journal export job writes the journal contents.
The bucket name must comply with the Amazon S3 bucket naming conventions. For more information, see Bucket Restrictions and Limitations in the Amazon S3 Developer Guide .
Prefix (string) --
The prefix for the Amazon S3 bucket in which a journal export job writes the journal contents.
The prefix must comply with Amazon S3 key naming rules and restrictions. For more information, see Object Key and Metadata in the Amazon S3 Developer Guide .
The following are examples of valid Prefix values:
EncryptionConfiguration (dict) --
The encryption settings that are used by a journal export job to write data in an Amazon S3 bucket.
ObjectEncryptionType (string) --
The Amazon S3 object encryption type.
To learn more about server-side encryption options in Amazon S3, see Protecting Data Using Server-Side Encryption in the Amazon S3 Developer Guide .
KmsKeyArn (string) --
The Amazon Resource Name (ARN) for a symmetric customer master key (CMK) in AWS Key Management Service (AWS KMS). Amazon QLDB does not support asymmetric CMKs.
You must provide a KmsKeyArn if you specify SSE_KMS as the ObjectEncryptionType .
KmsKeyArn is not required if you specify SSE_S3 as the ObjectEncryptionType .
RoleArn (string) --
The Amazon Resource Name (ARN) of the IAM role that grants QLDB permissions for a journal export job to do the following:
NextToken (string) --
Returns an array of ledger summaries that are associated with the current AWS account and Region.
This action returns a maximum of 100 items and is paginated so that you can retrieve all the items by calling ListLedgers multiple times.
See also: AWS API Documentation
Request Syntax
response = client.list_ledgers(
MaxResults=123,
NextToken='string'
)
dict
Response Syntax
{
'Ledgers': [
{
'Name': 'string',
'State': 'CREATING'|'ACTIVE'|'DELETING'|'DELETED',
'CreationDateTime': datetime(2015, 1, 1)
},
],
'NextToken': 'string'
}
Response Structure
(dict) --
Ledgers (list) --
The array of ledger summaries that are associated with the current AWS account and Region.
(dict) --
Information about a ledger, including its name, state, and when it was created.
Name (string) --
The name of the ledger.
State (string) --
The current status of the ledger.
CreationDateTime (datetime) --
The date and time, in epoch time format, when the ledger was created. (Epoch time format is the number of seconds elapsed since 12:00:00 AM January 1, 1970 UTC.)
NextToken (string) --
A pagination token, indicating whether there are more results available:
Returns all tags for a specified Amazon QLDB resource.
See also: AWS API Documentation
Request Syntax
response = client.list_tags_for_resource(
ResourceArn='string'
)
[REQUIRED]
The Amazon Resource Name (ARN) for which you want to list the tags. For example:
arn:aws:qldb:us-east-1:123456789012:ledger/exampleLedger
{
'Tags': {
'string': 'string'
}
}
Response Structure
The tags that are currently associated with the specified Amazon QLDB resource.
Exceptions
Creates a stream for a given Amazon QLDB ledger that delivers the journal data to a specified Amazon Kinesis Data Streams resource. The stream captures every document revision that is committed to your journal and sends it to the Kinesis data stream.
See also: AWS API Documentation
Request Syntax
response = client.stream_journal_to_kinesis(
LedgerName='string',
RoleArn='string',
Tags={
'string': 'string'
},
InclusiveStartTime=datetime(2015, 1, 1),
ExclusiveEndTime=datetime(2015, 1, 1),
KinesisConfiguration={
'StreamArn': 'string',
'AggregationEnabled': True|False
},
StreamName='string'
)
[REQUIRED]
The name of the ledger.
[REQUIRED]
The Amazon Resource Name (ARN) of the IAM role that grants QLDB permissions for a journal stream to write data records to a Kinesis Data Streams resource.
The key-value pairs to add as tags to the stream that you want to create. Tag keys are case sensitive. Tag values are case sensitive and can be null.
[REQUIRED]
The inclusive start date and time from which to start streaming journal data. This parameter must be in ISO 8601 date and time format and in Universal Coordinated Time (UTC). For example: 2019-06-13T21:36:34Z
The InclusiveStartTime cannot be in the future and must be before ExclusiveEndTime .
If you provide an InclusiveStartTime that is before the ledger's CreationDateTime , QLDB effectively defaults it to the ledger's CreationDateTime .
The exclusive date and time that specifies when the stream ends. If you keep this parameter blank, the stream runs indefinitely until you cancel it.
The ExclusiveEndTime must be in ISO 8601 date and time format and in Universal Coordinated Time (UTC). For example: 2019-06-13T21:36:34Z
[REQUIRED]
The configuration settings of the Kinesis Data Streams destination for your stream request.
The Amazon Resource Name (ARN) of the Kinesis data stream resource.
Enables QLDB to publish multiple stream records in a single Kinesis Data Streams record. To learn more, see KPL Key Concepts in the Amazon Kinesis Data Streams Developer Guide .
[REQUIRED]
The name that you want to assign to the QLDB journal stream. User-defined names can help identify and indicate the purpose of a stream.
Your stream name must be unique among other active streams for a given ledger. If you try to create a stream with the same name and configuration of an active, existing stream for the same ledger, QLDB simply returns the existing stream. Stream names have the same naming constraints as ledger names, as defined in Quotas in Amazon QLDB in the Amazon QLDB Developer Guide .
dict
Response Syntax
{
'StreamId': 'string'
}
Response Structure
(dict) --
StreamId (string) --
The unique ID that QLDB assigns to each QLDB journal stream.
Exceptions
Adds one or more tags to a specified Amazon QLDB resource.
A resource can have up to 50 tags. If you try to create more than 50 tags for a resource, your request fails and returns an error.
See also: AWS API Documentation
Request Syntax
response = client.tag_resource(
ResourceArn='string',
Tags={
'string': 'string'
}
)
[REQUIRED]
The Amazon Resource Name (ARN) to which you want to add the tags. For example:
arn:aws:qldb:us-east-1:123456789012:ledger/exampleLedger
[REQUIRED]
The key-value pairs to add as tags to the specified QLDB resource. Tag keys are case sensitive. If you specify a key that already exists for the resource, your request fails and returns an error. Tag values are case sensitive and can be null.
dict
Response Syntax
{}
Response Structure
Exceptions
Removes one or more tags from a specified Amazon QLDB resource. You can specify up to 50 tag keys to remove.
See also: AWS API Documentation
Request Syntax
response = client.untag_resource(
ResourceArn='string',
TagKeys=[
'string',
]
)
[REQUIRED]
The Amazon Resource Name (ARN) from which you want to remove the tags. For example:
arn:aws:qldb:us-east-1:123456789012:ledger/exampleLedger
[REQUIRED]
The list of tag keys that you want to remove.
dict
Response Syntax
{}
Response Structure
Exceptions
Updates properties on a ledger.
See also: AWS API Documentation
Request Syntax
response = client.update_ledger(
Name='string',
DeletionProtection=True|False
)
[REQUIRED]
The name of the ledger.
The flag that prevents a ledger from being deleted by any user. If not provided on ledger creation, this feature is enabled (true ) by default.
If deletion protection is enabled, you must first disable it before you can delete the ledger using the QLDB API or the AWS Command Line Interface (AWS CLI). You can disable it by calling the UpdateLedger operation to set the flag to false . The QLDB console disables deletion protection for you when you use it to delete a ledger.
dict
Response Syntax
{
'Name': 'string',
'Arn': 'string',
'State': 'CREATING'|'ACTIVE'|'DELETING'|'DELETED',
'CreationDateTime': datetime(2015, 1, 1),
'DeletionProtection': True|False
}
Response Structure
(dict) --
Name (string) --
The name of the ledger.
Arn (string) --
The Amazon Resource Name (ARN) for the ledger.
State (string) --
The current status of the ledger.
CreationDateTime (datetime) --
The date and time, in epoch time format, when the ledger was created. (Epoch time format is the number of seconds elapsed since 12:00:00 AM January 1, 1970 UTC.)
DeletionProtection (boolean) --
The flag that prevents a ledger from being deleted by any user. If not provided on ledger creation, this feature is enabled (true ) by default.
If deletion protection is enabled, you must first disable it before you can delete the ledger using the QLDB API or the AWS Command Line Interface (AWS CLI). You can disable it by calling the UpdateLedger operation to set the flag to false . The QLDB console disables deletion protection for you when you use it to delete a ledger.
Exceptions
The available paginators are: