Task state class

Task State causes the interpreter to execute the work identified by the state’s `resource` field.

Super classes

stepfunctions::Block -> stepfunctions::State -> Task

Methods

Public methods

• Task$new()

• Task$allowed_fields()

• Task$clone()

Inherited methods

• stepfunctions::Block$is_field_allowed()

• stepfunctions::Block$to_json()

• stepfunctions::State$.next()

• stepfunctions::State$accept()

• stepfunctions::State$add_catch()

• stepfunctions::State$add_retry()

• stepfunctions::State$format()

• stepfunctions::State$output()

• stepfunctions::State$to_list()

• stepfunctions::State$update_parameters()

---

Method new()

Initialize Task state class

Usage

Task$new(
  state_id,
  resource,
  timeout_seconds = NULL,
  timeout_seconds_path = NULL,
  heartbeat_seconds = NULL,
  heartbeat_seconds_path = NULL,
  comment = NULL,
  input_path = NULL,
  parameters = NULL,
  result_path = NULL,
  output_path = NULL,
  ...
)

Arguments

state_id

(str): State name whose length **must be** less than or equal to 128 unicode characters. State names **must be** unique within the scope of the whole state machine.

resource

(str): A URI that uniquely identifies the specific task to execute. The States language does not constrain the URI scheme nor any other part of the URI.

timeout_seconds

(int, optional): Positive integer specifying timeout for the state in seconds. If the state runs longer than the specified timeout, then the interpreter fails the state with a `States.Timeout` Error Name. (default: 60)

timeout_seconds_path

(str, optional): Path specifying the state's timeout value in seconds from the state input. When resolved, the path must select a field whose value is a positive integer.

heartbeat_seconds

(int, optional): Positive integer specifying heartbeat timeout for the state in seconds. This value should be lower than the one specified for `timeout_seconds`. If more time than the specified heartbeat elapses between heartbeats from the task, then the interpreter fails the state with a `States.Timeout` Error Name.

heartbeat_seconds_path

(str, optional): Path specifying the state's heartbeat value in seconds from the state input. When resolved, the path must select a field whose value is a positive integer.

comment

(str, optional): Human-readable comment or description. (default: None)

input_path

(str, optional): Path applied to the state’s raw input to select some or all of it; that selection is used by the state. (default: '$')

parameters

(list, optional): The value of this field becomes the effective input for the state.

result_path

(str, optional): Path specifying the raw input’s combination with or replacement by the state’s result. (default: '$')

output_path

(str, optional): Path applied to the state’s output after the application of `result_path`, producing the effective output which serves as the raw input for the next state. (default: '$')

...

: Extra field names to pass to Block class

---

Method allowed_fields()

allowed extra fields

Usage

Task$allowed_fields()

---

Method clone()

The objects of this class are cloneable with this method.

Usage

Task$clone(deep = FALSE)

Arguments

deep

Whether to make a deep clone.