Module aws_lambda_powertools.utilities.data_classes.shared_functions

Functions

def base64_decode(value: str) ‑> str

Decodes a Base64-encoded string and returns the decoded value.

Parameters

value : str

The Base64-encoded string to decode.

Returns

str

The decoded string value.

def get_header_value(headers: dict[str, Any], name: str, default_value: str | None = None, case_sensitive: bool = False) ‑> str | None

Get the value of a header by its name. Parameters

---

headers : Dict[str, str]

The dictionary of headers.

name : str

The name of the header to retrieve.

default_value : str, optional

The default value to return if the header is not found. Default is None.

case_sensitive : bool, optional

Indicates whether the header name should be case-sensitive. Default is False.

Returns

str, optional

The value of the header if found, otherwise the default value or None.

def get_multi_value_query_string_values(multi_value_query_string_parameters: dict[str, list[str]] | None, name: str, default_values: list[str] | None = None) ‑> list[str]

Retrieves the values of a multi-value string parameters specified by the given name. Parameters

---

name : str

The name of the query string parameter to retrieve.

default_value : list[str], optional

The default value to return if the parameter is not found. Defaults to None.

Returns

List[str]. optional

The values of the query string parameter if found, or the default values if not found.

def get_query_string_value(query_string_parameters: dict[str, str] | None, name: str, default_value: str | None = None) ‑> str | None

Retrieves the value of a query string parameter specified by the given name. Parameters

---

name : str

The name of the query string parameter to retrieve.

default_value : str, optional

The default value to return if the parameter is not found. Defaults to None.

Returns

str. optional

The value of the query string parameter if found, or the default value if not found.