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post_parameter_change_hook

Vinay Rawal answered on April 2, 2023 Popularity 1/10 Helpfulness 1/10

answer post_parameter_change_hook

post_parameter_change_hook

Comment

Carries out actions needed after a parameter change has occurred e.g. amend a schedule. Currently only runs after INSTANCE level parameter changes.

from contracts_api import (
    NumberShape,
    Parameter,
    ParameterLevel,
    PostParameterChangeHookArguments,
    PostParameterChangeHookResult,
    ScheduleExpression,
    SmartContractEventType,
    Tside,
    UpdateAccountEventTypeDirective,
)
api = "4.0.0"
version = "1.0.0"
tside = Tside.ASSET
parameters = [
    Parameter(
        name="interest_accrual_hour",
        shape=NumberShape(min_value=0, max_value=23, step=1),
        level=ParameterLevel.TEMPLATE,
        description="The hour of the day at which interest is accrued.",
        display_name="Interest accrual hour",
        default_value=0,
    ),
]
event_types = [
    SmartContractEventType(name="ACCRUE_INTEREST"),
]
def post_parameter_change_hook(vault, hook_arguments: PostParameterChangeHookArguments):
    updated_parameter_values = hook_arguments.updated_parameter_values
    if "interest_accrual_hour" in updated_parameter_values:
        interest_accrual_hour = updated_parameter_values["interest_accrual_hour"]
        update_event_type_directive = UpdateAccountEventTypeDirective(
            event_type="ACCRUE_INTEREST",
            expression=ScheduleExpression(hour=interest_accrual_hour, minute=0, second=0),
        )
        return PostParameterChangeHookResult(
            update_account_event_type_directives=[update_event_type_directive],
        )

Popularity 1/10 Helpfulness 1/10 Language python

Source: Grepper

Tags: python

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Contributed on Apr 02 2023

Vinay Rawal

0 Answers Avg Quality 2/10

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