Duration

class aws_cdk.Duration(*args: Any, **kwargs)

Bases: object

Represents a length of time.

The amount can be specified either as a literal value (e.g: 10) which cannot be negative, or as an unresolved number token.

When the amount is passed as a token, unit conversion is not possible.

ExampleMetadata: infused

Example:

# Example automatically generated from non-compiling source. May contain errors.
import aws_cdk.aws_cloudwatch as cloudwatch


table = dynamodb.Table(self, "Table",
    partition_key=dynamodb.Attribute(name="id", type=dynamodb.AttributeType.STRING)
)

metric = table.metric_throttled_requests_for_operations(
    operations=[dynamodb.Operation.PUT_ITEM],
    period=Duration.minutes(1)
)

cloudwatch.Alarm(stack, "Alarm",
    metric=metric,
    evaluation_periods=1,
    threshold=1
)

Methods

format_token_to_number()

Returns stringified number of duration.

Return type: str

is_unresolved()

Checks if duration is a token or a resolvable object.

Return type: bool

minus(rhs)

Substract two Durations together.

Parameters

rhs (Duration) –

Return type

Duration

plus(rhs)

Add two Durations together.

Parameters

rhs (Duration) –

Return type

Duration

to_days(*, integral=None)

Return the total number of days in this Duration.

Parameters: integral (Optional[bool]) – If true, conversions into a larger time unit (e.g. Seconds to Minutes) will fail if the result is not an integer. Default: true
Return type: Union[int, float]
Returns: the value of this Duration expressed in Days.

to_hours(*, integral=None)

Return the total number of hours in this Duration.

Parameters: integral (Optional[bool]) – If true, conversions into a larger time unit (e.g. Seconds to Minutes) will fail if the result is not an integer. Default: true
Return type: Union[int, float]
Returns: the value of this Duration expressed in Hours.

to_human_string()

Turn this duration into a human-readable string.

Return type: str

to_iso_string()

Return an ISO 8601 representation of this period.

Return type: str
Returns: a string starting with ‘P’ describing the period
See: https://www.iso.org/standard/70907.html

to_milliseconds(*, integral=None)

Return the total number of milliseconds in this Duration.

Parameters: integral (Optional[bool]) – If true, conversions into a larger time unit (e.g. Seconds to Minutes) will fail if the result is not an integer. Default: true
Return type: Union[int, float]
Returns: the value of this Duration expressed in Milliseconds.

to_minutes(*, integral=None)

Return the total number of minutes in this Duration.

Parameters: integral (Optional[bool]) – If true, conversions into a larger time unit (e.g. Seconds to Minutes) will fail if the result is not an integer. Default: true
Return type: Union[int, float]
Returns: the value of this Duration expressed in Minutes.

to_seconds(*, integral=None)

Return the total number of seconds in this Duration.

Parameters: integral (Optional[bool]) – If true, conversions into a larger time unit (e.g. Seconds to Minutes) will fail if the result is not an integer. Default: true
Return type: Union[int, float]
Returns: the value of this Duration expressed in Seconds.

to_string()

Returns a string representation of this Duration.

This is is never the right function to use when you want to use the Duration object in a template. Use toSeconds(), toMinutes(), toDays(), etc. instead.

Return type: str

unit_label()

Returns unit of the duration.

Return type: str

Static Methods

classmethod days(amount)

Create a Duration representing an amount of days.

Parameters: amount (Union[int, float]) – the amount of Days the Duration will represent.
Return type: Duration
Returns: a new Duration representing amount Days.

classmethod hours(amount)

Create a Duration representing an amount of hours.

Parameters: amount (Union[int, float]) – the amount of Hours the Duration will represent.
Return type: Duration
Returns: a new Duration representing amount Hours.

classmethod millis(amount)

Create a Duration representing an amount of milliseconds.

Parameters: amount (Union[int, float]) – the amount of Milliseconds the Duration will represent.
Return type: Duration
Returns: a new Duration representing amount ms.

classmethod minutes(amount)

Create a Duration representing an amount of minutes.

Parameters: amount (Union[int, float]) – the amount of Minutes the Duration will represent.
Return type: Duration
Returns: a new Duration representing amount Minutes.

classmethod parse(duration)

Parse a period formatted according to the ISO 8601 standard.

Parameters: duration (str) – an ISO-formtted duration to be parsed.
Return type: Duration
Returns: the parsed Duration.
See: https://www.iso.org/standard/70907.html

classmethod seconds(amount)

Create a Duration representing an amount of seconds.

Parameters: amount (Union[int, float]) – the amount of Seconds the Duration will represent.
Return type: Duration
Returns: a new Duration representing amount Seconds.