Serverless API

Build a serverless API using Lambda and API Gateway with Patterned Designs modules.

This guide demonstrates how to build a serverless API using AWS Lambda and related services.

What You’ll Build

  • Lambda functions for API endpoints
  • IAM roles with least-privilege permissions
  • Secrets management for API keys

Prerequisites

Modules Used

Implementation

Step 1: Create the IAM Role

module "lambda_role" {
  source  = "registry.patterneddesigns.ca/patterneddesigns/iam-role/aws"
  version = "1.0.0"

  name = "api-lambda-role"
}

Step 2: Store Secrets

module "api_secrets" {
  source  = "registry.patterneddesigns.ca/patterneddesigns/secrets-manager/aws"
  version = "1.0.0"

  name = "api-credentials"
}

Step 3: Deploy Lambda Function

module "api_handler" {
  source  = "registry.patterneddesigns.ca/patterneddesigns/lambda-function/aws"
  version = "1.0.0"

  name     = "api-handler"
  role_arn = module.lambda_role.role_arn
}

Complete Example

See the full working example in the examples directory.

Next Steps