VSCode Extension

Introduction

LocalStack VSCode Extension supports deploying and invoking Python Lambda functions through AWS SAM or AWS CloudFormation.

Prerequisites

• VS Code
• samlocal command line wrapper around the AWS SAM CLI for use with LocalStack.
• LocalStack running in the background.

Getting Started

You can use a sample project to get started with the extension. The sample project contains a simple Lambda function and a SAM template. Clone the repository and open the project in VSCode.

$ git clone https://github.com/joe4dev/lambda-python.git
$ cd lambda-python
$ code .

Install the LocalStack VSCode Extension as recommended by the project.

You can now open the Python handler function under app/hello_world.py. Click the CodeLens Deploy Lambda function, select the template.yaml, and choose a stack name such as my-stack.

Click the CodeLens Invoke Lambda function and pick the stack name my-stack and the function hello-world-function.

Limitations

• The CodeLens for Deploy Lambda function always appears at the first line of each Python file.
• Invoke Lambda function currently only works in the region us-east-1 and with an empty payload.