API Gateway Pattern
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An API Gateway Pattern is a microservices architecture pattern that can support API gateway pattern implementation tasks by providing a single entry point for external consumers to access multiple backend microservices through API gateway pattern routing mechanisms.
- AKA: API Management Pattern, API Aggregation Pattern, API Facade Pattern.
- Context:
- It can (typically) route API Gateway Pattern Requests through API gateway pattern routing rules.
- It can (typically) aggregate API Gateway Pattern Responses through API gateway pattern composition logic.
- It can (typically) transform API Gateway Pattern Protocols through API gateway pattern translation layers.
- It can (typically) enforce API Gateway Pattern Authentications through API gateway pattern security filters.
- It can (typically) implement API Gateway Pattern Rate Limitings through API gateway pattern throttling mechanisms.
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- It can (often) cache API Gateway Pattern Response Datas through API gateway pattern caching strategys.
- It can (often) monitor API Gateway Pattern Performance Metrics through API gateway pattern observability frameworks.
- It can (often) handle API Gateway Pattern Circuit Breakings through API gateway pattern resilience patterns.
- It can (often) manage API Gateway Pattern Versions through API gateway pattern versioning strategys.
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- It can range from being a Simple API Gateway Pattern to being a Complex API Gateway Pattern, depending on its API gateway pattern architectural sophistication.
- It can range from being a Centralized API Gateway Pattern to being a Federated API Gateway Pattern, depending on its API gateway pattern deployment topology.
- It can range from being a Synchronous API Gateway Pattern to being an Asynchronous API Gateway Pattern, depending on its API gateway pattern communication model.
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- It can utilize API Gateways for API gateway pattern infrastructure implementation.
- It can integrate with Service Registrys for API gateway pattern service discovery.
- It can connect to Identity Providers for API gateway pattern authentication services.
- It can interface with Monitoring Systems for API gateway pattern telemetry collection.
- It can support Backend for Frontend (BFF) Patterns for API gateway pattern client optimization.
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- Example(s):
- Cloud-Based API Gateway Patterns, such as:
- AWS API Gateway Patterns, such as:
- Azure API Gateway Patterns, such as:
- Google Cloud API Gateway Patterns, such as:
- Open Source API Gateway Patterns, such as:
- Kong API Gateway Patterns, such as:
- Netflix API Gateway Patterns, such as:
- Specialized API Gateway Patterns, such as:
- GraphQL API Gateway Patterns, such as:
- Event-Driven API Gateway Patterns, such as:
- ...
- Cloud-Based API Gateway Patterns, such as:
- Counter-Example(s):
- Direct Service Invocation Patterns, which enable direct microservice communication without API gateway pattern centralized routing.
- Service Mesh Patterns, which provide service-to-service communication through sidecar proxy deployments rather than API gateway pattern single entry points.
- Monolithic Architecture Patterns, which combine application components into single deployment units without API gateway pattern service aggregation needs.
- Client-Side Service Discovery Patterns, which implement service discovery logic in client applications rather than API gateway pattern centralized routing.
- See: API Gateway, Microservices Architecture, Service-Oriented Architecture (SOA), Backend for Frontend (BFF) Pattern, API Management System, Reverse Proxy Pattern, Service Mesh, API Gateway Capacity Model.
References
2023
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- An API Gateway pattern is a design pattern used in microservices architecture to provide a single entry point for external consumers to access and interact with multiple, independent services within the system. It acts as a reverse proxy, aggregating and routing client requests to the appropriate microservices while providing additional functionalities, such as authentication, rate limiting, caching, and request/response transformation. By utilizing the API Gateway pattern, developers can simplify client interactions, improve system security, and enhance performance by reducing the number of round-trip requests between clients and services.
- Some key benefits of the API Gateway pattern include:
- Simplified client-side integration: Clients only need to interact with a single API, rather than keeping track of multiple endpoints for each microservice.
- Centralized authentication and authorization: The API Gateway can handle security measures such as authentication and access control, reducing the need for each microservice to implement these features individually.
- Load balancing and request routing: The API Gateway can efficiently distribute incoming requests to the appropriate microservices, helping to balance the load across the system.
- Rate limiting and throttling: The API Gateway can limit the number of requests from clients, helping to prevent abuse or excessive load on the system.
- Caching: By caching responses, the API Gateway can reduce latency and improve performance, particularly for frequently accessed data.
- Monitoring and logging: The API Gateway can provide a central location for gathering metrics and logs, making it easier to monitor and manage the health of the system.