The go-aws-cdk from kshyr

go-aws-cdk's Introduction

AWS CDK in Go

Introductory Infrastructure as Code project

Stack:

DynamoDB. Stores user table.
Lambda. Handles register, login and protected routes.
- /register. Receives username and plain text password. Hashes the password and inserts user row into DynamoDB.
- /login. Validates credentials, generates access token and sends it back.
- /protected. Has a middleware that checks for bearer token and, if it's valid, sends back protected data.
API Gateway. Acts as proxy that validates client requests and passes them to Lambda.

Visual representation, because why not:

sequenceDiagram
    participant Client
    participant API Gateway
    participant Lambda
    participant DynamoDB
    Client->>API Gateway: request to /register
    API Gateway->>Lambda: validates request
    Lambda->>DynamoDB: inserts user with hashed password
    Client->>API Gateway: request to /login
    API Gateway->>Lambda: validates request
    Lambda->>API Gateway: generates access token
    API Gateway->>Client: sends access token
    Client->>API Gateway: request to /protected
    API Gateway->>Lambda: validates Authorization header
    Lambda->>Lambda: middleware validates bearer token
    Lambda->>DynamoDB: gets protected data
    Lambda->>API Gateway: transforms protected data
    API Gateway->>Client: sends protected data

Big thanks to Melkey

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