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šŸ“ API Management
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šŸ”§ Spring Cloud Gateway

Spring Cloud Gateway

A simple, yet effective way to route to APIs.

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Overview

Spring Cloud Gateway is a project from the Spring ecosystem that provides a library for building an API gateway on top of Spring Boot. It is built on reactive programming principles (Project Reactor) and is designed to be highly performant and non-blocking. It offers a flexible way to route requests based on various criteria and apply cross-cutting concerns like security, monitoring, and resiliency.

āœØ Key Features

  • Built on Spring Framework 5, Project Reactor, and Spring Boot 2
  • Reactive, non-blocking architecture
  • Predicate-based routing
  • GatewayFilter factories for modifying requests and responses
  • Integration with Spring Cloud Discovery (Eureka, Consul)
  • Rate limiting and circuit breaker patterns

šŸŽÆ Key Differentiators

  • Deep integration with the Spring ecosystem
  • Reactive and non-blocking foundation for high performance
  • Flexibility of being a library rather than a standalone product

Unique Value: Provides a seamless and powerful way for Spring developers to build a custom, high-performance API gateway that is perfectly integrated with their microservices ecosystem.

šŸŽÆ Use Cases (4)

API Gateway for Spring-based microservices Backend for Frontend (BFF) Dynamic routing in a microservices architecture Implementing cross-cutting concerns

āœ… Best For

  • Serving as the primary entry point for a backend system built entirely with Spring Boot microservices.
  • Implementing authentication and rate limiting for a set of internal APIs.

šŸ’” Check With Vendor

Verify these considerations match your specific requirements:

  • Non-Java or non-Spring environments.
  • Teams looking for a pre-packaged, configurable tool rather than a library to build upon.

šŸ† Alternatives

Netflix Zuul Other API Gateway products (Kong, Tyk, etc.)

Offers a much tighter and more natural integration for Spring developers compared to language-agnostic gateways, but requires development effort to set up.

šŸ’» Platforms

API

āœ… Offline Mode Available

šŸ”Œ Integrations

Spring Cloud ecosystem (Service Discovery, Config) Resilience4J Micrometer (for metrics) Spring Security

šŸ›Ÿ Support Options

  • āœ“ Email Support
  • āœ“ Dedicated Support (VMware Spring Runtime tier)

šŸ’° Pricing

Contact for pricing
Free Tier Available

Free tier: Fully open-source and free to use.

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