**Go Serverless: Integrate Lambdas, Cognito & More with Amazon API Gateway *
Hi There,
In today's presentation, we will explore what are Application Programming Interfaces (API) and how Amazon API Gateway Service helps us to manage the APIs easily.
** What is Application Programming Interfaces (API)? **
An API or Application Programming Interfaces, is a messenger between software applications
Allows applications to communicate and exchange data
Uses standardized protocols for compatibility
Hides internal complexity of backend services
Can be used for various purposes, like data exchange or triggering actions
Few more Examples of APIs:
Social media platforms: Allow apps to access user data and post content.
Payment gateways: Enable online transactions between apps and payment processors.
Weather APIs: Provide weather data to weather apps and websites.
Map APIs: Offer map functionalities to navigation and location-based apps.
** Introduction to Amazon API Gateway Service **
Amazon API Gateway is a service offered by Amazon Web Services (AWS) that helps developers create, publish, maintain, monitor, and secure APIs at any scale.
It acts as a single entry point for various back-end services, making it easier to manage and access them securely.
Build RESTful APIs and WebSocket APIs for data access, business logic, or real-time communication.
Connect to various services: Integrate with AWS services like Lambda functions, Elastic Beanstalk, S3 buckets, and more. Integrate with non-AWS services using HTTP(S) endpoints for a broader reach.
Built-in security features: authentication, authorization, access control, and throttling to protect our data.
Monitor and manage: Track API performance, usage, and errors for effective management.
Scale automatically: Handle up to hundreds of thousands of concurrent API calls without worrying about infrastructure.
Pay-as-you-go model: only pay for API calls received and data transferred out
** Use cases of Amazon API Gateway Service **
Mobile apps: Access data and functionality from backend services
Web applications: Offer features and services through APIs
IoT applications: Connect devices to backend services
Serverless applications: Trigger functionalities using APIs
** API Management features of Amazon API Gateway Service **
Versioning: Manage different versions of API simultaneously for gradual updates and rollback options.
Caching: Improve performance by caching frequently accessed data to reduce backend load.
CORS (Cross-Origin Resource Sharing): Allow requests from different domains for broader accessibility.
Custom Domain Names: Use custom domain for branding and improved user experience.
Pricing and Cost Optimization:
Pay-per-use model: only pay for the API calls you receive and data transferred out.
Tiered pricing: As the API usage grows, the cost per call decreases, making it cost-effective for high-traffic APIs.
Cost optimization techniques: Implement caching, throttling, and usage plans to manage costs effectively.
Additional Considerations:
Integration with CI/CD pipelines: Automate API deployment and updates as part of the development workflow.
API Gateway Extensions: Use plugins to add custom functionality to the APIs, such as rate limiting, request validation, and more.
Serverless vs. Containerized Backends: Choose the backend approach that best suits the needs and performance requirements.
** API Types supported by Amazon API Gateway Service **
HTTP API
Build low-latency and cost-effective REST APIs with built-in features such as OAuth2, and native CORS support.
Works with : Lambda, HTTP backbends
WebSocket API
Enable real-time, two-way communication for chat applications, live updates, and more.
Works with : Lambda, HTTP, AWS Services
REST API
Develop a REST API where we can gain complete control over the request and response along with API management capabilities.
Works with : Lambda, HTTP, AWS Services
REST API Private
Create a REST API that is only accessible from within a VPC.
Works with : Lambda, HTTP, AWS Services
** Learning Resources **
AWS API Gateway Documentation: https://docs.aws.amazon.com/apigatewa...
AWS API Gateway Tutorials:
https://aws.amazon.com/api-gateway/ge...
AWS API Gateway Blog:
https://docs.aws.amazon.com/apigatewa...
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