# AWS Lambda

`aws_lambda` is a placeholder for the name of your lambda.

## Developers guide

Use `pre-commit` for git hooks managing (https://pre-commit.com/#installation). Hook configuration
can be found at .pre-commit-config.yaml. `isort` and `yapf` tools are included to run as a part
of precommit hook.

To register a new hook run:
```shell script
pre-commit install
```

To run hooks without code committing:
```shell script
pre-commit run
```

Sometimes these tools can have a conflict regarding import sorting. In this case consider to
enable `include_trailing_comma` option at `setup.cfg` file.

Don’t forget to run `pylint` and `mypy` before code committing manually. It will save you from
wasting time at reading CI logs for failed build.

In order to check everything is fine (and have a dry run for formatting and import sorting)
consider following commands, e.g. for `slz_apple_music_charts_pipeline_configurator`:
```shell script
cd slz_apple_music_charts_pipeline_configurator
workon slz_apple_music_charts_pipeline_configurator # or './venv/bin/activate'
isort --check-only -rc . && yapf --recursive --verbose --parallel --diff . \
&& pylint --rcfile=pylintrc ./${PWD##*/} ./tests && mypy ${PWD##*/} && echo 'Exit code:' $?
```

It will run all checks inside a current directory.


## Testing

- Prepare CloudWatch event
- Put it into the `events/`
- Execute lambda:

```
    python <project_name> -e <environment> -p events/<event>.json
```