chore: pip update + add mypy (#511)

Author: ran-isenberg

.github/workflows/serverless-service.yml

@@ -43,7 +43,7 @@ jobs:
       - name: pre commit
         run: |
           make pre-commit
-      - name: Lint with flake8
+      - name: Lint with flake8 and mypy
         run: |
           make lint
       - name: file format

Makefile

@@ -9,6 +9,8 @@ dev:
 lint:
 	@echo "Running flake8"
 	flake8 service/* cdk/* tests/* docs/examples/* --exclude patterns='build,cdk.json,cdk.context.json,.yaml'
+	@echo "Running mypy"
+	make mypy-lint
 
 complex:
 	@echo "Running Radon"
@@ -22,6 +24,9 @@ sort:
 pre-commit:
 	pre-commit run -a --show-diff-on-failure
 
+mypy-lint:
+	mypy --pretty service docs/examples cdk tests
+
 deps:
 	pipenv requirements --dev > dev_requirements.txt
 	pipenv requirements  > lambda_requirements.txt
@@ -47,10 +52,10 @@ deploy:
 	make deps
 	mkdir -p .build/lambdas ; cp -r service .build/lambdas
 	mkdir -p .build/common_layer ; pipenv requirements > .build/common_layer/requirements.txt
-	cdk deploy --app="python3 ${PWD}/cdk/my_service/app.py" --require-approval=never
+	cdk deploy --app="python3 ${PWD}/app.py" --require-approval=never
 
 destroy:
-	cdk destroy --app="python3 ${PWD}/cdk/my_service/app.py" --force
+	cdk destroy --app="python3 ${PWD}/app.py" --force
 
 docs:
 	mkdocs serve

Pipfile

@@ -23,6 +23,9 @@ boto3 = "*"
 mkdocs-material = "*"
 mkdocs-git-revision-date-plugin = "*"
 setuptools = ">=65.5.1"
+types-cachetools = "*"
+mypy = "*"
+types-requests = "*"
 
 [packages]
 aws-lambda-powertools= {extras = ["all"],version = "*"}

Pipfile.lock

@@ -43,7 +43,7 @@ This project aims to reduce cognitive load and answer these questions for you by
 
 - Python Serverless service with a recommended file structure.
 - CDK infrastructure with infrastructure tests and security tests.
-- CI/CD pipelines based on Github actions that deploys to AWS with python linters, complexity checks and style formatters.
+- CI/CD pipelines based on Github actions that deploys to AWS with python linters, static code analysis, complexity checks and style formatters.
 - The AWS Lambda handler embodies Serverless best practices and has all the bells and whistles for a proper production ready handler.
 - AWS Lambda handler uses [AWS Lambda Powertools](https://awslabs.github.io/aws-lambda-powertools-python/).
 - Unit, integration and E2E tests.

README.md

@@ -0,0 +1,18 @@
+#!/usr/bin/env python3
+import os
+
+from aws_cdk import App, Environment
+from boto3 import client, session
+
+from cdk.my_service.service_stack import ServiceStack, get_stack_name
+
+account = client('sts').get_caller_identity()['Account']
+region = session.Session().region_name
+app = App()
+my_stack = ServiceStack(
+    app,
+    get_stack_name(),
+    env=Environment(account=os.environ.get('AWS_DEFAULT_ACCOUNT', account), region=os.environ.get('AWS_DEFAULT_REGION', region)),
+)
+
+app.synth()

app.py

@@ -0,0 +1 @@
+{}