build(deps-dev): bump aws-lambda-powertools from 3.28.0 to 3.29.0

[dependabot]

Bumps aws-lambda-powertools from 3.28.0 to 3.29.0.

Release notes

Sourced from aws-lambda-powertools's releases.

v3.29.0

Summary

We're thrilled to announce native async resolution for the Event Handler. Write async def route handlers, call await app.resolve_async(event, context), and mix sync/async middlewares. Everything runs natively on the event loop.

We also fixed OpenAPI schema generation for Pydantic @computed_field, a deadlock when sync middlewares raised before calling next(), and ALB returning 422 when response body is None.

A huge thanks to @​hirenkumar-n-dholariya, @​amrabed, and @​catarinacps for their contributions!

Async Event Handler with resolve_async()

Docs

You can now define async route handlers and resolve them without blocking the event loop.

Even though the Lambda handler itself is sync, you can use asyncio.run(app.resolve_async(event, context)) to fan out multiple I/O calls concurrently with asyncio.gather or call async libraries directly.

import asyncio
from aws_lambda_powertools.event_handler import APIGatewayHttpResolver
from aws_lambda_powertools.utilities.typing import LambdaContext
app = APIGatewayHttpResolver()
async def get_orders(user_id: str) -> list:
...
async def get_profile(user_id: str) -> dict:
...
@​app.get("/dashboard/<user_id>")
async def get_dashboard(user_id: str):
orders, profile = await asyncio.gather(
get_orders(user_id),
get_profile(user_id),
)
return {"orders": orders, "profile": profile}
def lambda_handler(event: dict, context: LambdaContext):
return asyncio.run(app.resolve_async(event, context))

Sync and async middlewares work together seamlessly. Sync middlewares are bridged to the event loop in a background thread, so you don't need to rewrite existing middleware to adopt async handlers.

OpenAPI computed_field support

Docs

... (truncated)

Changelog

Sourced from aws-lambda-powertools's changelog.

[v3.29.0] - 2026-05-04

Bug Fixes

• event_handler: prevent deadlock when async middleware raises before calling next() (#8196)

Maintenance

• version bump

Commits

• 245ac2d chore: version bump
• f4644f7 fix(event_handler): prevent deadlock when async middleware raises before call...
• 53678cf fix(event_handler): fix ALB resolver returns when response body is None (#8194)
• 5b8ba36 chore: update aws-encryption-sdk allowed versions (#8191)
• f83e141 chore(deps): update requests requirement from >=2.32.0 to >=2.33.1 in /exampl...
• 10ffef1 feat(openapi): add compute_field support (#8188)
• 08c9921 fix(idempotency): resolve tech debt issues with falsy responses and Redis per...
• 0834363 chore(deps): batch dependency updates (#8184)
• 1585b66 fix(parser): type hints should reflect primitive types support (#8175)
• 2e11129 feat(event_handler): adding resolve async public API (#8171)
• Additional commits viewable in compare view

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud