aiomql/docs/_utils.md

Utils

Utils is a collection of utility functions that are used throughout the codebase. It is a collection of functions.

Table of Contents

• backtest_sleep
• round_off
• dict_to_string
• round_down
• round_up
• async_cache
• backoff_decorator
• error_handler
• error_handler_sync

round_off

def round_off(value: float, step: float, round_down: bool = True) -> float:

Rounds off a value to the nearest step. If round_down is True, it will round down, otherwise it will round up.

Parameters:

Name	Type	Description	Default
value	float	The value to round off.
step	float	The step to round off to.
round_down	bool	Whether to round down. If False, round up.	True

Returns:

Type	Description
float	The rounded off value.

dict_to_string

def dict_to_string(data: dict, multi=True) -> str:

Converts a dictionary to a string. If multi is True, it will return a multi-line string.

Parameters:

Name	Type	Description	Default
data	dict	The dictionary to convert to a string.
multi	bool	Whether to return a multi-line string.	True

Returns:

Type	Description
str	The dictionary as a string.

round_down

def round_down(value: float, base: int) -> int:

Rounds down a value to the nearest base.

Parameters:

Name	Type	Description
value	float	The value to round down.
base	int	The base to round down to.

round_up

def round_up(value: float, base: int) -> int:

Rounds up a value to the nearest base.

Parameters:

Name	Type	Description
value	float	The value to round up.
base	int	The base to round up to.

async_cache

def async_cache(func: Callable) -> Callable:

A decorator to cache the result of an async function.

backoff_decorator

def backoff_decorator(func=None, *, max_retries: int = 2, retries: int = 0, error="") -> Callable:

A decorator to retry a function with exponential backoff.

Parameters:

Name	Type	Description	Default
func		The function to decorate.
max_retries	int	The maximum number of retries.	2
retries	int	The current number of retries.	0
error	str	The error message to display on exception.

error_handler

async def error_handler(func=None, *, msg="", exe=Exception, response=None, log_error_msg=True) -> Callable:

A decorator to handle exceptions in an async function.

Parameters:

Name	Type	Description	Default
func		The function to decorate.
msg	str	The error message to display on exception.
exe		The exception to catch.
response		The response to return on exception.
log_error_msg	bool	Whether to log the error message.	True

error_handler_sync

def error_handler_sync(func=None, *, msg="", exe=Exception, response=None, log_error_msg=True) -> Callable:

A decorator to handle exceptions in a sync function.

backtest_sleep

def backtest_sleep(seconds: float) -> None:

Sleeps for a given number of seconds in backtest mode.

Parameters:

Name	Type	Description
seconds	float	The number of seconds to sleep.