AWS — API Gateway

What is API Gateway?

Managed service for creating, publishing, and securing APIs.

Create REST API

aws apigateway create-rest-api --name my-api

Create resource

aws apigateway create-resource \
  --rest-api-id abc123 \
  --parent-id root \
  --path-part items

Create method

aws apigateway put-method \
  --rest-api-id abc123 \
  --resource-id xyz789 \
  --http-method GET \
  --authorization-type NONE

Lambda integration

aws apigateway put-integration \
  --rest-api-id abc123 \
  --resource-id xyz789 \
  --http-method GET \
  --type AWS_PROXY \
  --integration-http-method POST \
  --uri arn:aws:apigateway:us-east-1:lambda:path/2015-03-31/functions/arn:aws:lambda:us-east-1:123456789:function:my-function/invocations

Deploy API

aws apigateway create-deployment \
  --rest-api-id abc123 \
  --stage-name prod

Stages

# Create stage
aws apigateway create-stage \
  --rest-api-id abc123 \
  --stage-name dev \
  --deployment-id deploy123

# Enable caching
aws apigateway update-stage \
  --rest-api-id abc123 \
  --stage-name prod \
  --patch-operations op=replace,path=/cacheClusterEnabled,value=true

Usage plans

aws apigateway create-usage-plan \
  --name basic-plan \
  --throttle burstLimit=10,rateLimit=5

Best practices

1. Use API keys for tracking
2. Enable caching
3. Set up usage plans
4. Enable logging

Mini Practice

1. Create a REST API
2. Integrate with Lambda
3. Deploy to a stage
4. Set up API keys

Up Next

Continue with ElastiCache - Caching.