2026/05/01 - Amazon CloudWatch Logs - 1 updated api methods
Changes Adds support for filtering log groups by tags in the ListLogGroups API via the new logGroupTags parameter.
{'logGroupTags': [{'key': 'string', 'values': ['string']}]}
Returns a list of log groups in the Region in your account. If you are performing this action in a monitoring account, you can choose to also return log groups from source accounts that are linked to the monitoring account. For more information about using cross-account observability to set up monitoring accounts and source accounts, see CloudWatch cross-account observability.
You can optionally filter the results by log group class, log group name pattern, field indexes, data sources, field index names, or log group tags. If you specify more than one filter type, the results include log groups that satisfy all filters.
This operation is paginated. By default, your first use of this operation returns 50 results, and includes a token to use in a subsequent operation to return more results.
See also: AWS API Documentation
Request Syntax
client.list_log_groups(
logGroupNamePattern='string',
logGroupClass='STANDARD'|'INFREQUENT_ACCESS'|'DELIVERY',
includeLinkedAccounts=True|False,
accountIdentifiers=[
'string',
],
nextToken='string',
limit=123,
dataSources=[
{
'name': 'string',
'type': 'string'
},
],
fieldIndexNames=[
'string',
],
logGroupTags=[
{
'key': 'string',
'values': [
'string',
]
},
]
)
string
Use this parameter to limit the returned log groups to only those with names that match the pattern that you specify. This parameter is a regular expression that can match prefixes and substrings, and supports wildcard matching and matching multiple patterns, as in the following examples.
Use ^ to match log group names by prefix.
For a substring match, specify the string to match. All matches are case sensitive
To match multiple patterns, separate them with a | as in the example ^/aws/lambda|discovery
You can specify as many as five different regular expression patterns in this field, each of which must be between 3 and 24 characters. You can include the ^ symbol as many as five times, and include the | symbol as many as four times.
string
Use this parameter to limit the results to only those log groups in the specified log group class. If you omit this parameter, log groups of all classes can be returned.
boolean
If you are using a monitoring account, set this to true to have the operation return log groups in the accounts listed in accountIdentifiers.
If this parameter is set to true and accountIdentifiers contains a null value, the operation returns all log groups in the monitoring account and all log groups in all source accounts that are linked to the monitoring account.
The default for this parameter is false.
list
When includeLinkedAccounts is set to true, use this parameter to specify the list of accounts to search. You can specify as many as 20 account IDs in the array.
(string) --
string
The token for the next set of items to return. The token expires after 24 hours.
integer
The maximum number of log groups to return. If you omit this parameter, the default is up to 50 log groups.
list
An array of data source filters to filter log groups by their associated data sources. You can filter by data source name, type, or both. Multiple filters within the same dimension are combined with OR logic, while filters across different dimensions are combined with AND logic.
(dict) --
Filter criteria for data sources, used to specify which data sources to include in operations based on name and type.
name (string) -- [REQUIRED]
The name pattern to filter data sources by.
type (string) --
The type pattern to filter data sources by.
list
An array of field index names to filter log groups that have specific field indexes. Only log groups containing all specified field indexes are returned. You can specify 1 to 20 field index names, each with 1 to 512 characters.
(string) --
list
An array of tag filters to return only log groups that have specific tags. Multiple filters are combined with AND logic.
(dict) --
A tag filter that specifies a tag key and optional tag values for filtering log groups by tags.
key (string) -- [REQUIRED]
The tag key to filter on.
values (list) --
An optional list of tag values to filter on.
If you specify a filter that contains more than one value for a key, the response returns log groups that match any of the specified values for that key.
If you don't specify values, the response returns all log groups that are tagged with that key, with any or no value.
Use * for wildcard matching. For example, prod* matches values that start with prod.
Use ! as a prefix for negation. For example, !prod matches values that are not prod.
Exact matching and negation are case-sensitive. Wildcard matching is case-insensitive.
(string) --
dict
Response Syntax
{
'logGroups': [
{
'logGroupName': 'string',
'logGroupArn': 'string',
'logGroupClass': 'STANDARD'|'INFREQUENT_ACCESS'|'DELIVERY'
},
],
'nextToken': 'string'
}
Response Structure
(dict) --
logGroups (list) --
An array of structures, where each structure contains the information about one log group.
(dict) --
This structure contains information about one log group in your account.
logGroupName (string) --
The name of the log group.
logGroupArn (string) --
The Amazon Resource Name (ARN) of the log group.
logGroupClass (string) --
The log group class for this log group. For details about the features supported by each log group class, see Log classes
nextToken (string) --
The token for the next set of items to return. The token expires after 24 hours.