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Merged
leandrodamascena merged 1 commit into from
Apr 7, 2026
+18 −128
Merged

refactor(event_handlers): remove unnecessary init methods #8127

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66 changes: 13 additions & 53 deletions aws_lambda_powertools/event_handler/api_gateway.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1460,9 +1460,11 @@ def lambda_handler(event, context):
```
"""

_proxy_event_type: Enum = ProxyEventType.APIGatewayProxyEvent

def __init__(
self,
proxy_type: Enum = ProxyEventType.APIGatewayProxyEvent,
proxy_type: Enum | None = None,
cors: CORSConfig | None = None,
debug: bool | None = None,
serializer: Callable[[dict], str] | None = None,
Expand Down Expand Up @@ -1495,7 +1497,7 @@ def __init__(
function to deserialize `str`, `bytes`, `bytearray` containing a JSON document to a Python `dict`,
by default json.loads when integrating with EventSource data class
"""
self._proxy_type = proxy_type
self._proxy_type = proxy_type or self._proxy_event_type
self._dynamic_routes: list[Route] = []
self._static_routes: list[Route] = []
self._route_keys: list[str] = []
Expand Down Expand Up @@ -2935,28 +2937,7 @@ class APIGatewayRestResolver(ApiGatewayResolver):
"""Amazon API Gateway REST and HTTP API v1 payload resolver"""

current_event: APIGatewayProxyEvent

def __init__(
self,
cors: CORSConfig | None = None,
debug: bool | None = None,
serializer: Callable[[dict], str] | None = None,
strip_prefixes: list[str | Pattern] | None = None,
enable_validation: bool = False,
response_validation_error_http_code: HTTPStatus | int | None = None,
json_body_deserializer: Callable[[str], dict] | None = None,
):
"""Amazon API Gateway REST and HTTP API v1 payload resolver"""
super().__init__(
ProxyEventType.APIGatewayProxyEvent,
cors,
debug,
serializer,
strip_prefixes,
enable_validation,
response_validation_error_http_code,
json_body_deserializer=json_body_deserializer,
)
_proxy_event_type = ProxyEventType.APIGatewayProxyEvent

def _get_base_path(self) -> str:
# 3 different scenarios:
Expand Down Expand Up @@ -3025,28 +3006,7 @@ class APIGatewayHttpResolver(ApiGatewayResolver):
"""Amazon API Gateway HTTP API v2 payload resolver"""

current_event: APIGatewayProxyEventV2

def __init__(
self,
cors: CORSConfig | None = None,
debug: bool | None = None,
serializer: Callable[[dict], str] | None = None,
strip_prefixes: list[str | Pattern] | None = None,
enable_validation: bool = False,
response_validation_error_http_code: HTTPStatus | int | None = None,
json_body_deserializer: Callable[[str], dict] | None = None,
):
"""Amazon API Gateway HTTP API v2 payload resolver"""
super().__init__(
ProxyEventType.APIGatewayProxyEventV2,
cors,
debug,
serializer,
strip_prefixes,
enable_validation,
response_validation_error_http_code,
json_body_deserializer=json_body_deserializer,
)
_proxy_event_type = ProxyEventType.APIGatewayProxyEventV2

def _get_base_path(self) -> str:
# 3 different scenarios:
Expand All @@ -3066,6 +3026,7 @@ class ALBResolver(ApiGatewayResolver):
"""Amazon Application Load Balancer (ALB) resolver"""

current_event: ALBEvent
_proxy_event_type = ProxyEventType.ALBEvent

def __init__(
self,
Expand Down Expand Up @@ -3105,13 +3066,12 @@ def __init__(
Enables URL-decoding of query parameters (both keys and values), by default False.
"""
super().__init__(
ProxyEventType.ALBEvent,
cors,
debug,
serializer,
strip_prefixes,
enable_validation,
response_validation_error_http_code,
cors=cors,
debug=debug,
serializer=serializer,
strip_prefixes=strip_prefixes,
enable_validation=enable_validation,
response_validation_error_http_code=response_validation_error_http_code,
json_body_deserializer=json_body_deserializer,
)
self.decode_query_parameters = decode_query_parameters
Expand Down
28 changes: 2 additions & 26 deletions aws_lambda_powertools/event_handler/lambda_function_url.py
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Original file line number Diff line number Diff line change
@@ -1,17 +1,13 @@
from __future__ import annotations

from typing import TYPE_CHECKING, Pattern
from typing import TYPE_CHECKING

from aws_lambda_powertools.event_handler.api_gateway import (
ApiGatewayResolver,
ProxyEventType,
)

if TYPE_CHECKING:
from collections.abc import Callable
from http import HTTPStatus

from aws_lambda_powertools.event_handler import CORSConfig
from aws_lambda_powertools.utilities.data_classes import LambdaFunctionUrlEvent


Expand Down Expand Up @@ -52,27 +48,7 @@ def lambda_handler(event, context):
"""

current_event: LambdaFunctionUrlEvent

def __init__(
self,
cors: CORSConfig | None = None,
debug: bool | None = None,
serializer: Callable[[dict], str] | None = None,
strip_prefixes: list[str | Pattern] | None = None,
enable_validation: bool = False,
response_validation_error_http_code: HTTPStatus | int | None = None,
json_body_deserializer: Callable[[str], dict] | None = None,
):
super().__init__(
ProxyEventType.LambdaFunctionUrlEvent,
cors,
debug,
serializer,
strip_prefixes,
enable_validation,
response_validation_error_http_code,
json_body_deserializer=json_body_deserializer,
)
_proxy_event_type = ProxyEventType.LambdaFunctionUrlEvent

def _get_base_path(self) -> str:
stage = self.current_event.request_context.stage
Expand Down
52 changes: 3 additions & 49 deletions aws_lambda_powertools/event_handler/vpc_lattice.py
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Original file line number Diff line number Diff line change
@@ -1,17 +1,13 @@
from __future__ import annotations

from typing import TYPE_CHECKING, Pattern
from typing import TYPE_CHECKING

from aws_lambda_powertools.event_handler.api_gateway import (
ApiGatewayResolver,
ProxyEventType,
)

if TYPE_CHECKING:
from collections.abc import Callable
from http import HTTPStatus

from aws_lambda_powertools.event_handler import CORSConfig
from aws_lambda_powertools.utilities.data_classes import VPCLatticeEvent, VPCLatticeEventV2


Expand Down Expand Up @@ -48,28 +44,7 @@ def lambda_handler(event, context):
"""

current_event: VPCLatticeEvent

def __init__(
self,
cors: CORSConfig | None = None,
debug: bool | None = None,
serializer: Callable[[dict], str] | None = None,
strip_prefixes: list[str | Pattern] | None = None,
enable_validation: bool = False,
response_validation_error_http_code: HTTPStatus | int | None = None,
json_body_deserializer: Callable[[str], dict] | None = None,
):
"""Amazon VPC Lattice resolver"""
super().__init__(
ProxyEventType.VPCLatticeEvent,
cors,
debug,
serializer,
strip_prefixes,
enable_validation,
response_validation_error_http_code,
json_body_deserializer=json_body_deserializer,
)
_proxy_event_type = ProxyEventType.VPCLatticeEvent

def _get_base_path(self) -> str:
return ""
Expand Down Expand Up @@ -108,28 +83,7 @@ def lambda_handler(event, context):
"""

current_event: VPCLatticeEventV2

def __init__(
self,
cors: CORSConfig | None = None,
debug: bool | None = None,
serializer: Callable[[dict], str] | None = None,
strip_prefixes: list[str | Pattern] | None = None,
enable_validation: bool = False,
response_validation_error_http_code: HTTPStatus | int | None = None,
json_body_deserializer: Callable[[str], dict] | None = None,
):
"""Amazon VPC Lattice resolver"""
super().__init__(
ProxyEventType.VPCLatticeEventV2,
cors,
debug,
serializer,
strip_prefixes,
enable_validation,
response_validation_error_http_code,
json_body_deserializer=json_body_deserializer,
)
_proxy_event_type = ProxyEventType.VPCLatticeEventV2

def _get_base_path(self) -> str:
return ""
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