EveWangUW / apigw-http-api-lambda-dynamodb-python-cdk

AWS API Gateway HTTP API to AWS Lambda in VPC to DynamoDB CDK Python Sample!

Overview

Creates an AWS Lambda function writing to Amazon DynamoDB and invoked by Amazon API Gateway REST API.

Setup

The cdk.json file tells the CDK Toolkit how to execute your app.

This project is set up like a standard Python project. The initialization process also creates a virtualenv within this project, stored under the .venv directory. To create the virtualenv it assumes that there is a python3 (or python for Windows) executable in your path with access to the venv package. If for any reason the automatic creation of the virtualenv fails, you can create the virtualenv manually.

To manually create a virtualenv on MacOS and Linux:

$ python3 -m venv .venv

After the init process completes and the virtualenv is created, you can use the following step to activate your virtualenv.

$ source .venv/bin/activate

If you are a Windows platform, you would activate the virtualenv like this:

% .venv\Scripts\activate.bat

Once the virtualenv is activated, you can install the required dependencies.

$ pip install -r requirements.txt

At this point you can now synthesize the CloudFormation template for this code.

$ cdk synth

To add additional dependencies, for example other CDK libraries, just add them to your setup.py file and rerun the pip install -r requirements.txt command.

Deploy

At this point you can deploy the stack.

Using the default profile

$ cdk deploy

With specific profile

$ cdk deploy --profile test

After Deploy

Navigate to AWS API Gateway console and test the API with below sample data

{
    "year":"2023", 
    "title":"kkkg",
    "id":"12"
}

You should get below response

{"message": "Successfully inserted data!"}

Cleanup

Run below script to delete AWS resources created by this sample stack.

cdk destroy

Useful commands

• cdk ls list all stacks in the app
• cdk synth emits the synthesized CloudFormation template
• cdk deploy deploy this stack to your default AWS account/region
• cdk diff compare deployed stack with current state
• cdk docs open CDK documentation

Enjoy!